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C++: Support C11 _Generic expressions
This commit is contained in:
Jeroen Ketema
@@ -0,0 +1,32 @@
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/*
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* Approach: replace conversion expressions of kind 389 (= @c11_generic) by
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* conversion expressions of kind 12 (= @parexpr), i.e., a `ParenthesisExpr`,
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* and drop the relation which its child expressions, which are just syntactic
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* sugar. Parenthesis expressions are equally benign as C11 _Generic expressions,
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* and behave similarly in the context of the IR.
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*/
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class Expr extends @expr {
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string toString() { none() }
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}
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class Location extends @location {
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string toString() { none() }
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}
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class ExprParent extends @exprparent {
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string toString() { none() }
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}
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query predicate new_exprs(Expr expr, int new_kind, Location loc) {
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exists(int kind | exprs(expr, kind, loc) | if kind = 389 then new_kind = 12 else new_kind = kind)
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}
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query predicate new_exprparents(Expr expr, int index, ExprParent expr_parent) {
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exprparents(expr, index, expr_parent) and
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(
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not expr_parent instanceof @expr
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or
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exists(int kind | exprs(expr_parent.(Expr), kind, _) | kind != 389)
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)
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}
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2319
cpp/downgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/old.dbscheme
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2319
cpp/downgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/old.dbscheme
Normal file
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,4 @@
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description: Expose C11 _Generics
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compatibility: partial
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exprs.rel: run downgrades.ql new_exprs
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exprparents.rel: run downgrades.ql new_exprparents
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4
cpp/ql/lib/change-notes/2024-08-30-c11-generics.md
Normal file
4
cpp/ql/lib/change-notes/2024-08-30-c11-generics.md
Normal file
@@ -0,0 +1,4 @@
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---
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category: feature
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---
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* Added a class `C11GenericExpr` to represent C11 generic selection expressions. The generic selection is represented as a `Conversion` on the expression that will be selected.
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@@ -385,6 +385,21 @@ class CastNode extends ConversionNode {
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}
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}
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/**
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* A node representing a `C11GenericExpr`.
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*/
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class C11GenericNode extends ConversionNode {
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C11GenericExpr generic;
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C11GenericNode() { generic = conv }
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override AstNode getChildInternal(int childIndex) {
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result = super.getChildInternal(childIndex - count(generic.getAChild()))
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or
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result.getAst() = generic.getChild(childIndex)
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}
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}
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/**
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* A node representing a `StmtExpr`.
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*/
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@@ -860,6 +875,15 @@ private predicate namedExprChildPredicates(Expr expr, Element ele, string pred)
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or
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expr.(BuiltInVarArgsStart).getLastNamedParameter() = ele and pred = "getLastNamedParameter()"
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or
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expr.(C11GenericExpr).getControllingExpr() = ele and pred = "getControllingExpr()"
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or
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exists(int n |
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expr.(C11GenericExpr).getAssociationType(n) = ele.(TypeName).getType() and
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pred = "getAssociationType(" + n + ")"
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or
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expr.(C11GenericExpr).getAssociationExpr(n) = ele and pred = "getAssociationExpr(" + n + ")"
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)
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or
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expr.(Call).getQualifier() = ele and pred = "getQualifier()"
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or
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exists(int n | expr.(Call).getArgument(n) = ele and pred = "getArgument(" + n.toString() + ")")
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@@ -632,6 +632,104 @@ class ParenthesisExpr extends Conversion, @parexpr {
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override string getAPrimaryQlClass() { result = "ParenthesisExpr" }
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}
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/**
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* A node representing a C11 `_Generic` selection expression.
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*
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* For example:
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* ```
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* _Generic(e, int: "int", default: "unknown")
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* ```
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*/
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class C11GenericExpr extends Conversion, @c11_generic {
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int associationCount;
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C11GenericExpr() { associationCount = (count(this.getAChild()) - 1) / 2 }
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override string toString() { result = "_Generic" }
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override string getAPrimaryQlClass() { result = "C11GenericExpr" }
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/**
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* Gets the controlling expression of the generic selection.
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*
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* For example, for
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* ```
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* _Generic(e, int: "a", default: "b")
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* ```
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* the result is `e`.
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*/
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Expr getControllingExpr() { result = this.getChild(0) }
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/**
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* Gets the type of the `n`th element in the association list of the generic selection.
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*
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* For example, for
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* ```
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* _Generic(e, int: "a", default: "b")
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* ```
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* the type of the 0th element is `int`. In the case of the default element the
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* type will an instance of `VoidType`.
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*/
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Type getAssociationType(int n) {
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n in [0 .. associationCount - 1] and
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result = this.getChild(n * 2 + 1).(TypeName).getType()
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}
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/**
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* Gets the type of an element in the association list of the generic selection.
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*/
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Type getAnAssociationType() { result = this.getAssociationType(_) }
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/**
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* Gets the expression of the `n`th element in the association list of
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* the generic selection.
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*
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* For example, for
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* ```
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* _Generic(e, int: "a", default: "b")
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* ```
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* the expression for 0th element is `"a"`, and the expression for the
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* 1st element is `"b"`. For the selected expression, this predicate
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* will yield a `ReuseExpr`, such that
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* ```
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* this.getAssociationExpr(n).(ReuseExpr).getReusedExpr() = this.getExpr()
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* ```
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*/
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Expr getAssociationExpr(int n) {
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n in [0 .. associationCount - 1] and
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result = this.getChild(n * 2 + 2)
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}
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/**
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* Gets the expression of an element in the association list of the generic selection.
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*/
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Expr getAnAssociationExpr() { result = this.getAssociationExpr(_) }
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/**
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* Holds if the `n`th element of the association list of the generic selection is the
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* default element.
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*
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* For example, for
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* ```
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* _Generic(e, int: "a", default: "b")
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* ```
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* this holds for 1.
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*/
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predicate isDefaultAssociation(int n) { this.getAssociationType(n) instanceof VoidType }
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/**
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* Holds if the `n`th element of the association list of the generic selection is the
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* one whose expression was selected.
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*
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* For example, with `e` of type `int` and
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* ```
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* _Generic(e, int: "a", default: "b")
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* ```
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* this holds for 0.
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*/
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predicate isSelectedAssociation(int n) { this.getAssociationExpr(n) instanceof ReuseExpr }
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}
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/**
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* A C/C++ expression that could not be resolved, or that can no longer be
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* represented due to a database upgrade or downgrade.
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@@ -668,6 +766,8 @@ class AssumeExpr extends Expr, @assume {
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/**
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* A C/C++ comma expression.
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*
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* For example:
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* ```
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* int c = compute1(), compute2(), resulting_value;
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* ```
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@@ -128,6 +128,9 @@ private predicate ignoreExprAndDescendants(Expr expr) {
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vaStartExpr.getLastNamedParameter().getFullyConverted() = expr
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)
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or
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// The children of C11 _Generic expressions are just surface syntax.
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exists(C11GenericExpr generic | generic.getAChild() = expr)
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or
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// Do not translate implicit destructor calls for unnamed temporary variables that are
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// conditionally constructed (until we have a mechanism for calling these only when the
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// temporary's constructor was run)
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@@ -432,6 +435,9 @@ predicate ignoreLoad(Expr expr) {
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// The load is duplicated from the right operand.
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isExtractorFrontendVersion65OrHigher() and expr instanceof CommaExpr
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or
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// The load is duplicated from the chosen expression.
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expr instanceof C11GenericExpr
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or
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expr.(PointerDereferenceExpr).getOperand().getFullyConverted().getType().getUnspecifiedType()
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instanceof FunctionPointerType
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or
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@@ -893,7 +893,8 @@ class TranslatedTransparentConversion extends TranslatedTransparentExpr {
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(
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expr instanceof ParenthesisExpr or
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expr instanceof ReferenceDereferenceExpr or
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expr instanceof ReferenceToExpr
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expr instanceof ReferenceToExpr or
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expr instanceof C11GenericExpr
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)
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}
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@@ -1210,6 +1210,7 @@ conversionkinds(
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| @reference_to
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| @ref_indirect
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| @temp_init
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| @c11_generic
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;
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/*
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@@ -1792,6 +1793,7 @@ case @expr.kind of
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| 386 = @isscopedenum
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| 387 = @istriviallyrelocatable
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| 388 = @datasizeof
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| 389 = @c11_generic
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;
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@var_args_expr = @vastartexpr
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File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,2 @@
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description: Expose C11 _Generics
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compatibility: backwards
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458
cpp/ql/test/library-tests/c11_generic/PrintAST.expected
Normal file
458
cpp/ql/test/library-tests/c11_generic/PrintAST.expected
Normal file
@@ -0,0 +1,458 @@
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#-----| [CopyAssignmentOperator] __va_list_tag& __va_list_tag::operator=(__va_list_tag const&)
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#-----| <params>:
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#-----| getParameter(0): [Parameter] (unnamed parameter 0)
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#-----| Type = [LValueReferenceType] const __va_list_tag &
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#-----| [MoveAssignmentOperator] __va_list_tag& __va_list_tag::operator=(__va_list_tag&&)
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#-----| <params>:
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#-----| getParameter(0): [Parameter] (unnamed parameter 0)
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#-----| Type = [RValueReferenceType] __va_list_tag &&
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generic.c:
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# 3| [FormattingFunction,TopLevelFunction] int printf(char const*)
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# 3| <params>:
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# 3| getParameter(0): [Parameter] format
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# 3| Type = [PointerType] const char *
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# 14| [TopLevelFunction] int main()
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# 14| <params>:
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# 15| getEntryPoint(): [BlockStmt] { ... }
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# 16| getStmt(0): [DeclStmt] declaration
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# 16| getDeclarationEntry(0): [VariableDeclarationEntry] definition of i
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# 16| Type = [IntType] int
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# 17| getStmt(1): [DeclStmt] declaration
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# 17| getDeclarationEntry(0): [VariableDeclarationEntry] definition of m
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# 17| Type = [CTypedefType] MYINT
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# 18| getStmt(2): [DeclStmt] declaration
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# 18| getDeclarationEntry(0): [VariableDeclarationEntry] definition of s
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# 18| Type = [PointerType] const char *
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# 19| getStmt(3): [DeclStmt] declaration
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# 19| getDeclarationEntry(0): [VariableDeclarationEntry] definition of f
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# 19| Type = [PointerType] float ***
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# 21| getStmt(4): [ExprStmt] ExprStmt
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# 21| getExpr(): [FormattingFunctionCall,FunctionCall] call to printf
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# 21| Type = [IntType] int
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# 21| ValueCategory = prvalue
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# 21| getArgument(0): i is %s\n
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# 21| Type = [ArrayType] char[9]
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# 21| Value = [StringLiteral] "i is %s\n"
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# 21| ValueCategory = lvalue
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# 21| getArgument(1): int
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# 21| Type = [ArrayType] char[4]
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# 21| Value = [StringLiteral] "int"
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# 21| ValueCategory = lvalue
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# 21| getArgument(0).getFullyConverted(): [CStyleCast] (const char *)...
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# 21| Conversion = [PointerConversion] pointer conversion
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# 21| Type = [PointerType] const char *
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# 21| ValueCategory = prvalue
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# 21| getExpr(): [ArrayToPointerConversion] array to pointer conversion
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# 21| Type = [CharPointerType] char *
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# 21| ValueCategory = prvalue
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# 21| getArgument(1).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
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# 21| Type = [CharPointerType] char *
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# 21| ValueCategory = prvalue
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# 21| getExpr(): [C11GenericExpr] _Generic
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# 21| Type = [ArrayType] char[4]
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# 21| Value = [C11GenericExpr] int
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# 21| ValueCategory = lvalue
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# 21| getControllingExpr(): [VariableAccess] i
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# 21| Type = [IntType] int
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# 21| ValueCategory = prvalue(load)
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# 21| getAssociationType(0): [TypeName] int
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# 21| Type = [IntType] int
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# 21| ValueCategory = prvalue
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# 21| getAssociationExpr(0): [ReuseExpr] reuse of int
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# 21| Type = [ArrayType] char[4]
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# 21| ValueCategory = lvalue
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# 21| getAssociationType(1): [TypeName] const char *
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# 21| Type = [PointerType] const char *
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# 21| ValueCategory = prvalue
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# 21| getAssociationExpr(1): string
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# 21| Type = [ArrayType] char[7]
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# 21| Value = [StringLiteral] "string"
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# 21| ValueCategory = lvalue
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# 21| getAssociationType(2): [TypeName] void
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# 21| Type = [VoidType] void
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# 21| ValueCategory = prvalue
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# 21| getAssociationExpr(2): unknown
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# 21| Type = [ArrayType] char[8]
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# 21| Value = [StringLiteral] "unknown"
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# 21| ValueCategory = lvalue
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# 21| getControllingExpr().getFullyConverted(): [ParenthesisExpr] (...)
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# 21| Type = [IntType] int
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# 21| ValueCategory = prvalue(load)
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# 22| getStmt(5): [ExprStmt] ExprStmt
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# 22| getExpr(): [FormattingFunctionCall,FunctionCall] call to printf
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# 22| Type = [IntType] int
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# 22| ValueCategory = prvalue
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# 22| getArgument(0): c is %s\n
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# 22| Type = [ArrayType] char[9]
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# 22| Value = [StringLiteral] "c is %s\n"
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# 22| ValueCategory = lvalue
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# 22| getArgument(1): int
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# 22| Type = [ArrayType] char[4]
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# 22| Value = [StringLiteral] "int"
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# 22| ValueCategory = lvalue
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# 22| getArgument(0).getFullyConverted(): [CStyleCast] (const char *)...
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# 22| Conversion = [PointerConversion] pointer conversion
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# 22| Type = [PointerType] const char *
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# 22| ValueCategory = prvalue
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# 22| getExpr(): [ArrayToPointerConversion] array to pointer conversion
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# 22| Type = [CharPointerType] char *
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# 22| ValueCategory = prvalue
|
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# 22| getArgument(1).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
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# 22| Type = [CharPointerType] char *
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# 22| ValueCategory = prvalue
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# 22| getExpr(): [C11GenericExpr] _Generic
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# 22| Type = [ArrayType] char[4]
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# 22| Value = [C11GenericExpr] int
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# 22| ValueCategory = lvalue
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# 22| getControllingExpr(): [VariableAccess] m
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# 22| Type = [CTypedefType] MYINT
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# 22| ValueCategory = prvalue(load)
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# 22| getAssociationType(0): [TypeName] int
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# 22| Type = [IntType] int
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# 22| ValueCategory = prvalue
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||||
# 22| getAssociationExpr(0): [ReuseExpr] reuse of int
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||||
# 22| Type = [ArrayType] char[4]
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# 22| ValueCategory = lvalue
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||||
# 22| getAssociationType(1): [TypeName] const char *
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||||
# 22| Type = [PointerType] const char *
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||||
# 22| ValueCategory = prvalue
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||||
# 22| getAssociationExpr(1): string
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||||
# 22| Type = [ArrayType] char[7]
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||||
# 22| Value = [StringLiteral] "string"
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||||
# 22| ValueCategory = lvalue
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||||
# 22| getAssociationType(2): [TypeName] void
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||||
# 22| Type = [VoidType] void
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||||
# 22| ValueCategory = prvalue
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||||
# 22| getAssociationExpr(2): unknown
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||||
# 22| Type = [ArrayType] char[8]
|
||||
# 22| Value = [StringLiteral] "unknown"
|
||||
# 22| ValueCategory = lvalue
|
||||
# 22| getControllingExpr().getFullyConverted(): [ParenthesisExpr] (...)
|
||||
# 22| Type = [CTypedefType] MYINT
|
||||
# 22| ValueCategory = prvalue(load)
|
||||
# 23| getStmt(6): [ExprStmt] ExprStmt
|
||||
# 23| getExpr(): [FormattingFunctionCall,FunctionCall] call to printf
|
||||
# 23| Type = [IntType] int
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getArgument(0): s is %s\n
|
||||
# 23| Type = [ArrayType] char[9]
|
||||
# 23| Value = [StringLiteral] "s is %s\n"
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getArgument(1): string
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||||
# 23| Type = [ArrayType] char[7]
|
||||
# 23| Value = [StringLiteral] "string"
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getArgument(0).getFullyConverted(): [CStyleCast] (const char *)...
|
||||
# 23| Conversion = [PointerConversion] pointer conversion
|
||||
# 23| Type = [PointerType] const char *
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getExpr(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 23| Type = [CharPointerType] char *
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getArgument(1).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 23| Type = [CharPointerType] char *
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getExpr(): [C11GenericExpr] _Generic
|
||||
# 23| Type = [ArrayType] char[7]
|
||||
# 23| Value = [C11GenericExpr] string
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getControllingExpr(): [VariableAccess] s
|
||||
# 23| Type = [PointerType] const char *
|
||||
# 23| ValueCategory = prvalue(load)
|
||||
# 23| getAssociationType(0): [TypeName] int
|
||||
# 23| Type = [IntType] int
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getAssociationExpr(0): int
|
||||
# 23| Type = [ArrayType] char[4]
|
||||
# 23| Value = [StringLiteral] "int"
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getAssociationType(1): [TypeName] const char *
|
||||
# 23| Type = [PointerType] const char *
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getAssociationExpr(1): [ReuseExpr] reuse of string
|
||||
# 23| Type = [ArrayType] char[7]
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getAssociationType(2): [TypeName] void
|
||||
# 23| Type = [VoidType] void
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getAssociationExpr(2): unknown
|
||||
# 23| Type = [ArrayType] char[8]
|
||||
# 23| Value = [StringLiteral] "unknown"
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getControllingExpr().getFullyConverted(): [ParenthesisExpr] (...)
|
||||
# 23| Type = [PointerType] const char *
|
||||
# 23| ValueCategory = prvalue(load)
|
||||
# 24| getStmt(7): [ExprStmt] ExprStmt
|
||||
# 24| getExpr(): [FormattingFunctionCall,FunctionCall] call to printf
|
||||
# 24| Type = [IntType] int
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getArgument(0): f is %s\n
|
||||
# 24| Type = [ArrayType] char[9]
|
||||
# 24| Value = [StringLiteral] "f is %s\n"
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getArgument(1): unknown
|
||||
# 24| Type = [ArrayType] char[8]
|
||||
# 24| Value = [StringLiteral] "unknown"
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getArgument(0).getFullyConverted(): [CStyleCast] (const char *)...
|
||||
# 24| Conversion = [PointerConversion] pointer conversion
|
||||
# 24| Type = [PointerType] const char *
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getExpr(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 24| Type = [CharPointerType] char *
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getArgument(1).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 24| Type = [CharPointerType] char *
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getExpr(): [C11GenericExpr] _Generic
|
||||
# 24| Type = [ArrayType] char[8]
|
||||
# 24| Value = [C11GenericExpr] unknown
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getControllingExpr(): [VariableAccess] f
|
||||
# 24| Type = [PointerType] float ***
|
||||
# 24| ValueCategory = prvalue(load)
|
||||
# 24| getAssociationType(0): [TypeName] int
|
||||
# 24| Type = [IntType] int
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getAssociationExpr(0): int
|
||||
# 24| Type = [ArrayType] char[4]
|
||||
# 24| Value = [StringLiteral] "int"
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getAssociationType(1): [TypeName] const char *
|
||||
# 24| Type = [PointerType] const char *
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getAssociationExpr(1): string
|
||||
# 24| Type = [ArrayType] char[7]
|
||||
# 24| Value = [StringLiteral] "string"
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getAssociationType(2): [TypeName] void
|
||||
# 24| Type = [VoidType] void
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getAssociationExpr(2): [ReuseExpr] reuse of unknown
|
||||
# 24| Type = [ArrayType] char[8]
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getControllingExpr().getFullyConverted(): [ParenthesisExpr] (...)
|
||||
# 24| Type = [PointerType] float ***
|
||||
# 24| ValueCategory = prvalue(load)
|
||||
# 25| getStmt(8): [ReturnStmt] return ...
|
||||
#-----| getExpr(): [Literal] 0
|
||||
#-----| Type = [IntType] int
|
||||
#-----| Value = [Literal] 0
|
||||
#-----| ValueCategory = prvalue
|
||||
generic.cpp:
|
||||
# 4| [FormattingFunction,TopLevelFunction] int printf(char const*)
|
||||
# 4| <params>:
|
||||
# 4| getParameter(0): [Parameter] format
|
||||
# 4| Type = [PointerType] const char *
|
||||
# 15| [TopLevelFunction] int main()
|
||||
# 15| <params>:
|
||||
# 16| getEntryPoint(): [BlockStmt] { ... }
|
||||
# 17| getStmt(0): [DeclStmt] declaration
|
||||
# 17| getDeclarationEntry(0): [VariableDeclarationEntry] definition of i
|
||||
# 17| Type = [IntType] int
|
||||
# 18| getStmt(1): [DeclStmt] declaration
|
||||
# 18| getDeclarationEntry(0): [VariableDeclarationEntry] definition of m
|
||||
# 18| Type = [CTypedefType] MYINT
|
||||
# 19| getStmt(2): [DeclStmt] declaration
|
||||
# 19| getDeclarationEntry(0): [VariableDeclarationEntry] definition of s
|
||||
# 19| Type = [PointerType] const char *
|
||||
# 20| getStmt(3): [DeclStmt] declaration
|
||||
# 20| getDeclarationEntry(0): [VariableDeclarationEntry] definition of f
|
||||
# 20| Type = [PointerType] float ***
|
||||
# 22| getStmt(4): [ExprStmt] ExprStmt
|
||||
# 22| getExpr(): [FormattingFunctionCall,FunctionCall] call to printf
|
||||
# 22| Type = [IntType] int
|
||||
# 22| ValueCategory = prvalue
|
||||
# 22| getArgument(0): i is %s\n
|
||||
# 22| Type = [ArrayType] const char[9]
|
||||
# 22| Value = [StringLiteral] "i is %s\n"
|
||||
# 22| ValueCategory = lvalue
|
||||
# 22| getArgument(1): int
|
||||
# 22| Type = [ArrayType] const char[4]
|
||||
# 22| Value = [StringLiteral] "int"
|
||||
# 22| ValueCategory = lvalue
|
||||
# 22| getArgument(0).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 22| Type = [PointerType] const char *
|
||||
# 22| ValueCategory = prvalue
|
||||
# 22| getArgument(1).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 22| Type = [PointerType] const char *
|
||||
# 22| ValueCategory = prvalue
|
||||
# 22| getExpr(): [C11GenericExpr] _Generic
|
||||
# 22| Type = [ArrayType] const char[4]
|
||||
# 22| Value = [C11GenericExpr] int
|
||||
# 22| ValueCategory = lvalue
|
||||
# 22| getControllingExpr(): [VariableAccess] i
|
||||
# 22| Type = [IntType] int
|
||||
# 22| ValueCategory = lvalue
|
||||
# 22| getAssociationType(0): [TypeName] int
|
||||
# 22| Type = [IntType] int
|
||||
# 22| ValueCategory = prvalue
|
||||
# 22| getAssociationExpr(0): [ReuseExpr] reuse of int
|
||||
# 22| Type = [ArrayType] const char[4]
|
||||
# 22| ValueCategory = lvalue
|
||||
# 22| getAssociationType(1): [TypeName] const char *
|
||||
# 22| Type = [PointerType] const char *
|
||||
# 22| ValueCategory = prvalue
|
||||
# 22| getAssociationExpr(1): string
|
||||
# 22| Type = [ArrayType] const char[7]
|
||||
# 22| Value = [StringLiteral] "string"
|
||||
# 22| ValueCategory = lvalue
|
||||
# 22| getAssociationType(2): [TypeName] void
|
||||
# 22| Type = [VoidType] void
|
||||
# 22| ValueCategory = prvalue
|
||||
# 22| getAssociationExpr(2): unknown
|
||||
# 22| Type = [ArrayType] const char[8]
|
||||
# 22| Value = [StringLiteral] "unknown"
|
||||
# 22| ValueCategory = lvalue
|
||||
# 22| getControllingExpr().getFullyConverted(): [ParenthesisExpr] (...)
|
||||
# 22| Type = [IntType] int
|
||||
# 22| ValueCategory = lvalue
|
||||
# 23| getStmt(5): [ExprStmt] ExprStmt
|
||||
# 23| getExpr(): [FormattingFunctionCall,FunctionCall] call to printf
|
||||
# 23| Type = [IntType] int
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getArgument(0): c is %s\n
|
||||
# 23| Type = [ArrayType] const char[9]
|
||||
# 23| Value = [StringLiteral] "c is %s\n"
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getArgument(1): int
|
||||
# 23| Type = [ArrayType] const char[4]
|
||||
# 23| Value = [StringLiteral] "int"
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getArgument(0).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 23| Type = [PointerType] const char *
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getArgument(1).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 23| Type = [PointerType] const char *
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getExpr(): [C11GenericExpr] _Generic
|
||||
# 23| Type = [ArrayType] const char[4]
|
||||
# 23| Value = [C11GenericExpr] int
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getControllingExpr(): [VariableAccess] m
|
||||
# 23| Type = [CTypedefType] MYINT
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getAssociationType(0): [TypeName] int
|
||||
# 23| Type = [IntType] int
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getAssociationExpr(0): [ReuseExpr] reuse of int
|
||||
# 23| Type = [ArrayType] const char[4]
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getAssociationType(1): [TypeName] const char *
|
||||
# 23| Type = [PointerType] const char *
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getAssociationExpr(1): string
|
||||
# 23| Type = [ArrayType] const char[7]
|
||||
# 23| Value = [StringLiteral] "string"
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getAssociationType(2): [TypeName] void
|
||||
# 23| Type = [VoidType] void
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getAssociationExpr(2): unknown
|
||||
# 23| Type = [ArrayType] const char[8]
|
||||
# 23| Value = [StringLiteral] "unknown"
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getControllingExpr().getFullyConverted(): [ParenthesisExpr] (...)
|
||||
# 23| Type = [CTypedefType] MYINT
|
||||
# 23| ValueCategory = lvalue
|
||||
# 24| getStmt(6): [ExprStmt] ExprStmt
|
||||
# 24| getExpr(): [FormattingFunctionCall,FunctionCall] call to printf
|
||||
# 24| Type = [IntType] int
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getArgument(0): s is %s\n
|
||||
# 24| Type = [ArrayType] const char[9]
|
||||
# 24| Value = [StringLiteral] "s is %s\n"
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getArgument(1): string
|
||||
# 24| Type = [ArrayType] const char[7]
|
||||
# 24| Value = [StringLiteral] "string"
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getArgument(0).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 24| Type = [PointerType] const char *
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getArgument(1).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 24| Type = [PointerType] const char *
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getExpr(): [C11GenericExpr] _Generic
|
||||
# 24| Type = [ArrayType] const char[7]
|
||||
# 24| Value = [C11GenericExpr] string
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getControllingExpr(): [VariableAccess] s
|
||||
# 24| Type = [PointerType] const char *
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getAssociationType(0): [TypeName] int
|
||||
# 24| Type = [IntType] int
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getAssociationExpr(0): int
|
||||
# 24| Type = [ArrayType] const char[4]
|
||||
# 24| Value = [StringLiteral] "int"
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getAssociationType(1): [TypeName] const char *
|
||||
# 24| Type = [PointerType] const char *
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getAssociationExpr(1): [ReuseExpr] reuse of string
|
||||
# 24| Type = [ArrayType] const char[7]
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getAssociationType(2): [TypeName] void
|
||||
# 24| Type = [VoidType] void
|
||||
# 24| ValueCategory = prvalue
|
||||
# 24| getAssociationExpr(2): unknown
|
||||
# 24| Type = [ArrayType] const char[8]
|
||||
# 24| Value = [StringLiteral] "unknown"
|
||||
# 24| ValueCategory = lvalue
|
||||
# 24| getControllingExpr().getFullyConverted(): [ParenthesisExpr] (...)
|
||||
# 24| Type = [PointerType] const char *
|
||||
# 24| ValueCategory = lvalue
|
||||
# 25| getStmt(7): [ExprStmt] ExprStmt
|
||||
# 25| getExpr(): [FormattingFunctionCall,FunctionCall] call to printf
|
||||
# 25| Type = [IntType] int
|
||||
# 25| ValueCategory = prvalue
|
||||
# 25| getArgument(0): f is %s\n
|
||||
# 25| Type = [ArrayType] const char[9]
|
||||
# 25| Value = [StringLiteral] "f is %s\n"
|
||||
# 25| ValueCategory = lvalue
|
||||
# 25| getArgument(1): unknown
|
||||
# 25| Type = [ArrayType] const char[8]
|
||||
# 25| Value = [StringLiteral] "unknown"
|
||||
# 25| ValueCategory = lvalue
|
||||
# 25| getArgument(0).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 25| Type = [PointerType] const char *
|
||||
# 25| ValueCategory = prvalue
|
||||
# 25| getArgument(1).getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 25| Type = [PointerType] const char *
|
||||
# 25| ValueCategory = prvalue
|
||||
# 25| getExpr(): [C11GenericExpr] _Generic
|
||||
# 25| Type = [ArrayType] const char[8]
|
||||
# 25| Value = [C11GenericExpr] unknown
|
||||
# 25| ValueCategory = lvalue
|
||||
# 25| getControllingExpr(): [VariableAccess] f
|
||||
# 25| Type = [PointerType] float ***
|
||||
# 25| ValueCategory = lvalue
|
||||
# 25| getAssociationType(0): [TypeName] int
|
||||
# 25| Type = [IntType] int
|
||||
# 25| ValueCategory = prvalue
|
||||
# 25| getAssociationExpr(0): int
|
||||
# 25| Type = [ArrayType] const char[4]
|
||||
# 25| Value = [StringLiteral] "int"
|
||||
# 25| ValueCategory = lvalue
|
||||
# 25| getAssociationType(1): [TypeName] const char *
|
||||
# 25| Type = [PointerType] const char *
|
||||
# 25| ValueCategory = prvalue
|
||||
# 25| getAssociationExpr(1): string
|
||||
# 25| Type = [ArrayType] const char[7]
|
||||
# 25| Value = [StringLiteral] "string"
|
||||
# 25| ValueCategory = lvalue
|
||||
# 25| getAssociationType(2): [TypeName] void
|
||||
# 25| Type = [VoidType] void
|
||||
# 25| ValueCategory = prvalue
|
||||
# 25| getAssociationExpr(2): [ReuseExpr] reuse of unknown
|
||||
# 25| Type = [ArrayType] const char[8]
|
||||
# 25| ValueCategory = lvalue
|
||||
# 25| getControllingExpr().getFullyConverted(): [ParenthesisExpr] (...)
|
||||
# 25| Type = [PointerType] float ***
|
||||
# 25| ValueCategory = lvalue
|
||||
# 26| getStmt(8): [ReturnStmt] return ...
|
||||
#-----| getExpr(): [Literal] 0
|
||||
#-----| Type = [IntType] int
|
||||
#-----| Value = [Literal] 0
|
||||
#-----| ValueCategory = prvalue
|
||||
1
cpp/ql/test/library-tests/c11_generic/PrintAST.qlref
Normal file
1
cpp/ql/test/library-tests/c11_generic/PrintAST.qlref
Normal file
@@ -0,0 +1 @@
|
||||
semmle/code/cpp/PrintAST.ql
|
||||
@@ -0,0 +1,8 @@
|
||||
| generic.c:21:22:21:32 | _Generic | generic.c:21:22:21:32 | describe(val) |
|
||||
| generic.c:22:22:22:32 | _Generic | generic.c:22:22:22:32 | describe(val) |
|
||||
| generic.c:23:22:23:32 | _Generic | generic.c:23:22:23:32 | describe(val) |
|
||||
| generic.c:24:22:24:32 | _Generic | generic.c:24:22:24:32 | describe(val) |
|
||||
| generic.cpp:22:22:22:32 | _Generic | generic.cpp:22:22:22:32 | describe(val) |
|
||||
| generic.cpp:23:22:23:32 | _Generic | generic.cpp:23:22:23:32 | describe(val) |
|
||||
| generic.cpp:24:22:24:32 | _Generic | generic.cpp:24:22:24:32 | describe(val) |
|
||||
| generic.cpp:25:22:25:32 | _Generic | generic.cpp:25:22:25:32 | describe(val) |
|
||||
@@ -0,0 +1,5 @@
|
||||
import cpp
|
||||
|
||||
from C11GenericExpr g, MacroInvocation m
|
||||
where m.getAnExpandedElement() = g
|
||||
select g, m
|
||||
@@ -4207,6 +4207,24 @@ generic.c:
|
||||
# 3| Type = [IntType] int
|
||||
# 3| Value = [Literal] 1
|
||||
# 3| ValueCategory = prvalue
|
||||
# 3| getLeftOperand().getFullyConverted(): [C11GenericExpr] _Generic
|
||||
# 3| Type = [IntType] unsigned int
|
||||
# 3| ValueCategory = prvalue(load)
|
||||
# 3| getControllingExpr(): [VariableAccess] r
|
||||
# 3| Type = [IntType] unsigned int
|
||||
# 3| ValueCategory = prvalue(load)
|
||||
# 3| getAssociationType(0): [TypeName] unsigned int
|
||||
# 3| Type = [IntType] unsigned int
|
||||
# 3| ValueCategory = prvalue
|
||||
# 3| getAssociationExpr(0): [ReuseExpr] reuse of x
|
||||
# 3| Type = [IntType] unsigned int
|
||||
# 3| ValueCategory = lvalue
|
||||
# 3| getAssociationType(1): [TypeName] int
|
||||
# 3| Type = [IntType] int
|
||||
# 3| ValueCategory = prvalue
|
||||
# 3| getAssociationExpr(1): [VariableAccess] y
|
||||
# 3| Type = [IntType] int
|
||||
# 3| ValueCategory = lvalue
|
||||
# 3| getRightOperand().getFullyConverted(): [CStyleCast] (unsigned int)...
|
||||
# 3| Conversion = [IntegralConversion] integral conversion
|
||||
# 3| Type = [IntType] unsigned int
|
||||
@@ -4231,6 +4249,29 @@ generic.c:
|
||||
# 16| getExpr(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 16| Type = [CharPointerType] char *
|
||||
# 16| ValueCategory = prvalue
|
||||
# 16| getExpr(): [C11GenericExpr] _Generic
|
||||
# 16| Type = [ArrayType] char[4]
|
||||
# 16| Value = [C11GenericExpr] int
|
||||
# 16| ValueCategory = lvalue
|
||||
# 16| getControllingExpr(): [VariableAccess] i
|
||||
# 16| Type = [IntType] int
|
||||
# 16| ValueCategory = prvalue(load)
|
||||
# 16| getAssociationType(0): [TypeName] int
|
||||
# 16| Type = [IntType] int
|
||||
# 16| ValueCategory = prvalue
|
||||
# 16| getAssociationExpr(0): [ReuseExpr] reuse of int
|
||||
# 16| Type = [ArrayType] char[4]
|
||||
# 16| ValueCategory = lvalue
|
||||
# 16| getAssociationType(1): [TypeName] void
|
||||
# 16| Type = [VoidType] void
|
||||
# 16| ValueCategory = prvalue
|
||||
# 16| getAssociationExpr(1): unknown
|
||||
# 16| Type = [ArrayType] char[8]
|
||||
# 16| Value = [StringLiteral] "unknown"
|
||||
# 16| ValueCategory = lvalue
|
||||
# 16| getControllingExpr().getFullyConverted(): [ParenthesisExpr] (...)
|
||||
# 16| Type = [IntType] int
|
||||
# 16| ValueCategory = prvalue(load)
|
||||
# 19| [TopLevelFunction] char const* c11_generic_test_with_constant_and_no_macro()
|
||||
# 19| <params>:
|
||||
# 20| getEntryPoint(): [BlockStmt] { ... }
|
||||
@@ -4249,6 +4290,26 @@ generic.c:
|
||||
# 23| getExpr(): [ArrayToPointerConversion] array to pointer conversion
|
||||
# 23| Type = [CharPointerType] char *
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getExpr(): [C11GenericExpr] _Generic
|
||||
# 23| Type = [ArrayType] char[4]
|
||||
# 23| Value = [C11GenericExpr] int
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getControllingExpr(): [VariableAccess] i
|
||||
# 23| Type = [IntType] int
|
||||
# 23| ValueCategory = prvalue(load)
|
||||
# 23| getAssociationType(0): [TypeName] int
|
||||
# 23| Type = [IntType] int
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getAssociationExpr(0): [ReuseExpr] reuse of int
|
||||
# 23| Type = [ArrayType] char[4]
|
||||
# 23| ValueCategory = lvalue
|
||||
# 23| getAssociationType(1): [TypeName] void
|
||||
# 23| Type = [VoidType] void
|
||||
# 23| ValueCategory = prvalue
|
||||
# 23| getAssociationExpr(1): unknown
|
||||
# 23| Type = [ArrayType] char[8]
|
||||
# 23| Value = [StringLiteral] "unknown"
|
||||
# 23| ValueCategory = lvalue
|
||||
# 26| [TopLevelFunction] void c11_generic_test_test_with_cast(int)
|
||||
# 26| <params>:
|
||||
# 26| getParameter(0): [Parameter] y
|
||||
@@ -4267,10 +4328,28 @@ generic.c:
|
||||
# 28| getRValue(): [VariableAccess] y
|
||||
# 28| Type = [IntType] int
|
||||
# 28| ValueCategory = prvalue(load)
|
||||
# 28| getRValue().getFullyConverted(): [CStyleCast] (unsigned int)...
|
||||
# 28| Conversion = [IntegralConversion] integral conversion
|
||||
# 28| getRValue().getFullyConverted(): [C11GenericExpr] _Generic
|
||||
# 28| Type = [IntType] unsigned int
|
||||
# 28| ValueCategory = prvalue
|
||||
# 28| getControllingExpr(): [VariableAccess] r
|
||||
# 28| Type = [IntType] unsigned int
|
||||
# 28| ValueCategory = prvalue(load)
|
||||
# 28| getAssociationType(0): [TypeName] unsigned int
|
||||
# 28| Type = [IntType] unsigned int
|
||||
# 28| ValueCategory = prvalue
|
||||
# 28| getAssociationExpr(0): [ReuseExpr] reuse of y
|
||||
# 28| Type = [IntType] int
|
||||
# 28| ValueCategory = prvalue
|
||||
# 28| getAssociationType(1): [TypeName] int
|
||||
# 28| Type = [IntType] int
|
||||
# 28| ValueCategory = prvalue
|
||||
# 28| getAssociationExpr(1): [VariableAccess] y
|
||||
# 28| Type = [IntType] int
|
||||
# 28| ValueCategory = lvalue
|
||||
# 28| getExpr(): [CStyleCast] (unsigned int)...
|
||||
# 28| Conversion = [IntegralConversion] integral conversion
|
||||
# 28| Type = [IntType] unsigned int
|
||||
# 28| ValueCategory = prvalue
|
||||
# 29| getStmt(2): [ReturnStmt] return ...
|
||||
ir.c:
|
||||
# 5| [TopLevelFunction] int getX(MyCoords*)
|
||||
|
||||
@@ -2991,7 +2991,7 @@ generic.c:
|
||||
# 14| r14_1(glval<int>) = VariableAddress[i] :
|
||||
# 14| m14_2(int) = Uninitialized[i] : &:r14_1
|
||||
# 16| r16_1(glval<char *>) = VariableAddress[#return] :
|
||||
# 16| r16_2(glval<char[4]>) = StringConstant[int] :
|
||||
# 16| r16_2(glval<char[4]>) = Constant[int] :
|
||||
# 16| r16_3(char *) = Convert : r16_2
|
||||
# 16| r16_4(char *) = Convert : r16_3
|
||||
# 16| m16_5(char *) = Store[#return] : &:r16_1, r16_4
|
||||
@@ -3009,7 +3009,7 @@ generic.c:
|
||||
# 21| r21_1(glval<int>) = VariableAddress[i] :
|
||||
# 21| m21_2(int) = Uninitialized[i] : &:r21_1
|
||||
# 23| r23_1(glval<char *>) = VariableAddress[#return] :
|
||||
# 23| r23_2(glval<char[4]>) = StringConstant["int"] :
|
||||
# 23| r23_2(glval<char[4]>) = Constant[int] :
|
||||
# 23| r23_3(char *) = Convert : r23_2
|
||||
# 23| r23_4(char *) = Convert : r23_3
|
||||
# 23| m23_5(char *) = Store[#return] : &:r23_1, r23_4
|
||||
|
||||
@@ -2763,7 +2763,7 @@ generic.c:
|
||||
# 14| r14_1(glval<int>) = VariableAddress[i] :
|
||||
# 14| mu14_2(int) = Uninitialized[i] : &:r14_1
|
||||
# 16| r16_1(glval<char *>) = VariableAddress[#return] :
|
||||
# 16| r16_2(glval<char[4]>) = StringConstant[int] :
|
||||
# 16| r16_2(glval<char[4]>) = Constant[int] :
|
||||
# 16| r16_3(char *) = Convert : r16_2
|
||||
# 16| r16_4(char *) = Convert : r16_3
|
||||
# 16| mu16_5(char *) = Store[#return] : &:r16_1, r16_4
|
||||
@@ -2780,7 +2780,7 @@ generic.c:
|
||||
# 21| r21_1(glval<int>) = VariableAddress[i] :
|
||||
# 21| mu21_2(int) = Uninitialized[i] : &:r21_1
|
||||
# 23| r23_1(glval<char *>) = VariableAddress[#return] :
|
||||
# 23| r23_2(glval<char[4]>) = StringConstant["int"] :
|
||||
# 23| r23_2(glval<char[4]>) = Constant[int] :
|
||||
# 23| r23_3(char *) = Convert : r23_2
|
||||
# 23| r23_4(char *) = Convert : r23_3
|
||||
# 23| mu23_5(char *) = Store[#return] : &:r23_1, r23_4
|
||||
|
||||
Reference in New Issue
Block a user