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Merge pull request #16455 from jketema/if-fix

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C++: Ensure destructors for ifs are called after both branches and for both if and constexpr if
This commit is contained in:
Jeroen Ketema
2024-05-08 19:15:28 +02:00
committed by GitHub
parent 49aba25852 1a53b923a6
commit 0cbedfb28c
4 changed files with 225 additions and 231 deletions
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127
cpp/ql/lib/semmle/code/cpp/ir/implementation/raw/internal/TranslatedStmt.qll
View File

@@ -842,9 +842,7 @@ class TranslatedCatchAnyHandler extends TranslatedHandler {
}
}
class TranslatedIfStmt extends TranslatedStmt, ConditionContext {
override IfStmt stmt;
abstract class TranslatedIfLikeStmt extends TranslatedStmt, ConditionContext {
override Instruction getFirstInstruction(EdgeKind kind) {
if this.hasInitialization()
then result = this.getInitialization().getFirstInstruction(kind)
@@ -857,6 +855,8 @@ class TranslatedIfStmt extends TranslatedStmt, ConditionContext {
override TranslatedElement getLastChild() { result = this.getElse() or result = this.getThen() }
override predicate handlesDestructorsExplicitly() { any() }
override TranslatedElement getChildInternal(int id) {
id = 0 and result = this.getInitialization()
or
@@ -867,25 +867,21 @@ class TranslatedIfStmt extends TranslatedStmt, ConditionContext {
id = 3 and result = this.getElse()
}
private predicate hasInitialization() { exists(stmt.getInitialization()) }
abstract predicate hasInitialization();
private TranslatedStmt getInitialization() {
result = getTranslatedStmt(stmt.getInitialization())
}
abstract TranslatedStmt getInitialization();
private TranslatedCondition getCondition() {
result = getTranslatedCondition(stmt.getCondition().getFullyConverted())
}
abstract TranslatedCondition getCondition();
private Instruction getFirstConditionInstruction(EdgeKind kind) {
result = this.getCondition().getFirstInstruction(kind)
}
private TranslatedStmt getThen() { result = getTranslatedStmt(stmt.getThen()) }
abstract TranslatedStmt getThen();
private TranslatedStmt getElse() { result = getTranslatedStmt(stmt.getElse()) }
abstract TranslatedStmt getElse();
private predicate hasElse() { exists(stmt.getElse()) }
abstract predicate hasElse();
override Instruction getInstructionSuccessorInternal(InstructionTag tag, EdgeKind kind) { none() }
@@ -898,7 +894,11 @@ class TranslatedIfStmt extends TranslatedStmt, ConditionContext {
child = this.getCondition() and
if this.hasElse()
then result = this.getElse().getFirstInstruction(kind)
else result = this.getParent().getChildSuccessor(this, kind)
else (
if this.hasAnImplicitDestructorCall()
then result = this.getChild(this.getFirstDestructorCallIndex()).getFirstInstruction(kind)
else result = this.getParent().getChildSuccessor(this, kind)
)
}
override Instruction getChildSuccessorInternal(TranslatedElement child, EdgeKind kind) {
@@ -906,7 +906,24 @@ class TranslatedIfStmt extends TranslatedStmt, ConditionContext {
result = this.getFirstConditionInstruction(kind)
or
(child = this.getThen() or child = this.getElse()) and
result = this.getParent().getChildSuccessor(this, kind)
(
if this.hasAnImplicitDestructorCall()
then result = this.getChild(this.getFirstDestructorCallIndex()).getFirstInstruction(kind)
else result = this.getParent().getChildSuccessor(this, kind)
)
or
exists(int destructorId |
destructorId >= this.getFirstDestructorCallIndex() and
child = this.getChild(destructorId) and
result = this.getChild(destructorId + 1).getFirstInstruction(kind)
)
or
exists(int lastDestructorIndex |
lastDestructorIndex =
max(int n | exists(this.getChild(n)) and n >= this.getFirstDestructorCallIndex()) and
child = this.getChild(lastDestructorIndex) and
result = this.getParent().getChildSuccessor(this, kind)
)
}
override predicate hasInstruction(Opcode opcode, InstructionTag tag, CppType resultType) {
@@ -914,76 +931,44 @@ class TranslatedIfStmt extends TranslatedStmt, ConditionContext {
}
}
class TranslatedConstExprIfStmt extends TranslatedStmt, ConditionContext {
override ConstexprIfStmt stmt;
class TranslatedIfStmt extends TranslatedIfLikeStmt {
override IfStmt stmt;
override Instruction getFirstInstruction(EdgeKind kind) {
if this.hasInitialization()
then result = this.getInitialization().getFirstInstruction(kind)
else result = this.getFirstConditionInstruction(kind)
}
override predicate hasInitialization() { exists(stmt.getInitialization()) }
override TranslatedElement getChildInternal(int id) {
id = 0 and result = this.getInitialization()
or
id = 1 and result = this.getCondition()
or
id = 2 and result = this.getThen()
or
id = 3 and result = this.getElse()
}
private predicate hasInitialization() { exists(stmt.getInitialization()) }
private TranslatedStmt getInitialization() {
override TranslatedStmt getInitialization() {
result = getTranslatedStmt(stmt.getInitialization())
}
private TranslatedCondition getCondition() {
override TranslatedCondition getCondition() {
result = getTranslatedCondition(stmt.getCondition().getFullyConverted())
}
private Instruction getFirstConditionInstruction(EdgeKind kind) {
result = this.getCondition().getFirstInstruction(kind)
override TranslatedStmt getThen() { result = getTranslatedStmt(stmt.getThen()) }
override TranslatedStmt getElse() { result = getTranslatedStmt(stmt.getElse()) }
override predicate hasElse() { exists(stmt.getElse()) }
}
class TranslatedConstExprIfStmt extends TranslatedIfLikeStmt {
override ConstexprIfStmt stmt;
override predicate hasInitialization() { exists(stmt.getInitialization()) }
override TranslatedStmt getInitialization() {
result = getTranslatedStmt(stmt.getInitialization())
}
private TranslatedStmt getThen() { result = getTranslatedStmt(stmt.getThen()) }
private TranslatedStmt getElse() { result = getTranslatedStmt(stmt.getElse()) }
private predicate hasElse() { exists(stmt.getElse()) }
override Instruction getInstructionSuccessorInternal(InstructionTag tag, EdgeKind kind) { none() }
override Instruction getChildTrueSuccessor(TranslatedCondition child, EdgeKind kind) {
child = this.getCondition() and
result = this.getThen().getFirstInstruction(kind)
override TranslatedCondition getCondition() {
result = getTranslatedCondition(stmt.getCondition().getFullyConverted())
}
override Instruction getChildFalseSuccessor(TranslatedCondition child, EdgeKind kind) {
child = this.getCondition() and
if this.hasElse()
then result = this.getElse().getFirstInstruction(kind)
else result = this.getParent().getChildSuccessor(this, kind)
}
override TranslatedStmt getThen() { result = getTranslatedStmt(stmt.getThen()) }
override Instruction getChildSuccessorInternal(TranslatedElement child, EdgeKind kind) {
child = this.getInitialization() and
result = this.getFirstConditionInstruction(kind)
or
(child = this.getThen() or child = this.getElse()) and
result = this.getParent().getChildSuccessor(this, kind)
}
override TranslatedStmt getElse() { result = getTranslatedStmt(stmt.getElse()) }
override predicate hasInstruction(Opcode opcode, InstructionTag tag, CppType resultType) {
none()
}
override Instruction getALastInstructionInternal() {
result = this.getThen().getALastInstruction()
or
result = this.getElse().getALastInstruction()
}
override predicate hasElse() { exists(stmt.getElse()) }
}
abstract class TranslatedLoop extends TranslatedStmt, ConditionContext {

144
cpp/ql/test/library-tests/ir/ir/aliased_ir.expected
View File

@@ -15378,62 +15378,71 @@ ir.cpp:
# 2199| v2199_12(void) = ExitFunction :
# 2201| Block 2
# 2201| r2201_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2201| r2201_2(glval<unknown>) = FunctionAddress[set_x] :
# 2201| r2201_3(char) = Constant[97] :
# 2201| v2201_4(void) = Call[set_x] : func:r2201_2, this:r2201_1, 0:r2201_3
# 2201| m2201_5(unknown) = ^CallSideEffect : ~m2200_6
# 2201| m2201_6(unknown) = Chi : total:m2200_6, partial:m2201_5
# 2201| v2201_7(void) = ^IndirectReadSideEffect[-1] : &:r2201_1, m2200_8
# 2201| m2201_8(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2201_1
# 2201| m2201_9(ClassWithDestructor) = Chi : total:m2200_8, partial:m2201_8
# 2201| r2201_10(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2201| r2201_11(glval<unknown>) = FunctionAddress[~ClassWithDestructor] :
# 2201| v2201_12(void) = Call[~ClassWithDestructor] : func:r2201_11, this:r2201_10
# 2201| m2201_13(unknown) = ^CallSideEffect : ~m2201_6
# 2201| m2201_14(unknown) = Chi : total:m2201_6, partial:m2201_13
# 2201| v2201_15(void) = ^IndirectReadSideEffect[-1] : &:r2201_10, m2201_9
# 2201| m2201_16(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2201_10
# 2201| m2201_17(ClassWithDestructor) = Chi : total:m2201_9, partial:m2201_16
# 2201| r2201_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2201| r2201_2(glval<unknown>) = FunctionAddress[set_x] :
# 2201| r2201_3(char) = Constant[97] :
# 2201| v2201_4(void) = Call[set_x] : func:r2201_2, this:r2201_1, 0:r2201_3
# 2201| m2201_5(unknown) = ^CallSideEffect : ~m2200_6
# 2201| m2201_6(unknown) = Chi : total:m2200_6, partial:m2201_5
# 2201| v2201_7(void) = ^IndirectReadSideEffect[-1] : &:r2201_1, m2200_8
# 2201| m2201_8(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2201_1
# 2201| m2201_9(ClassWithDestructor) = Chi : total:m2200_8, partial:m2201_8
#-----| Goto -> Block 3
# 2203| Block 3
# 2203| m2203_1(unknown) = Phi : from 0:~m2200_6, from 2:~m2201_14
# 2203| r2203_2(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2203| m2203_3(ClassWithDestructor) = Uninitialized[x] : &:r2203_2
# 2203| r2203_4(glval<unknown>) = FunctionAddress[ClassWithDestructor] :
# 2203| v2203_5(void) = Call[ClassWithDestructor] : func:r2203_4, this:r2203_2
# 2203| m2203_6(unknown) = ^CallSideEffect : ~m2203_1
# 2203| m2203_7(unknown) = Chi : total:m2203_1, partial:m2203_6
# 2203| m2203_8(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2203_2
# 2203| m2203_9(ClassWithDestructor) = Chi : total:m2203_3, partial:m2203_8
# 2203| r2203_10(bool) = Constant[1] :
# 2203| v2203_11(void) = ConditionalBranch : r2203_10
# 2201| Block 3
# 2201| m2201_10(ClassWithDestructor) = Phi : from 0:m2200_8, from 2:m2201_9
# 2201| m2201_11(unknown) = Phi : from 0:~m2200_6, from 2:~m2201_6
# 2201| r2201_12(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2201| r2201_13(glval<unknown>) = FunctionAddress[~ClassWithDestructor] :
# 2201| v2201_14(void) = Call[~ClassWithDestructor] : func:r2201_13, this:r2201_12
# 2201| m2201_15(unknown) = ^CallSideEffect : ~m2201_11
# 2201| m2201_16(unknown) = Chi : total:m2201_11, partial:m2201_15
# 2201| v2201_17(void) = ^IndirectReadSideEffect[-1] : &:r2201_12, m2201_10
# 2201| m2201_18(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2201_12
# 2201| m2201_19(ClassWithDestructor) = Chi : total:m2201_10, partial:m2201_18
# 2203| r2203_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2203| m2203_2(ClassWithDestructor) = Uninitialized[x] : &:r2203_1
# 2203| r2203_3(glval<unknown>) = FunctionAddress[ClassWithDestructor] :
# 2203| v2203_4(void) = Call[ClassWithDestructor] : func:r2203_3, this:r2203_1
# 2203| m2203_5(unknown) = ^CallSideEffect : ~m2201_16
# 2203| m2203_6(unknown) = Chi : total:m2201_16, partial:m2203_5
# 2203| m2203_7(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2203_1
# 2203| m2203_8(ClassWithDestructor) = Chi : total:m2203_2, partial:m2203_7
# 2203| r2203_9(bool) = Constant[1] :
# 2203| v2203_10(void) = ConditionalBranch : r2203_9
#-----| False -> Block 24
#-----| True -> Block 4
# 2204| Block 4
# 2204| r2204_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2204| r2204_2(glval<unknown>) = FunctionAddress[set_x] :
# 2204| r2204_3(char) = Constant[97] :
# 2204| v2204_4(void) = Call[set_x] : func:r2204_2, this:r2204_1, 0:r2204_3
# 2204| m2204_5(unknown) = ^CallSideEffect : ~m2203_7
# 2204| m2204_6(unknown) = Chi : total:m2203_7, partial:m2204_5
# 2204| v2204_7(void) = ^IndirectReadSideEffect[-1] : &:r2204_1, m2203_9
# 2204| m2204_8(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2204_1
# 2204| m2204_9(ClassWithDestructor) = Chi : total:m2203_9, partial:m2204_8
# 2206| r2206_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2206| m2206_2(ClassWithDestructor) = Uninitialized[x] : &:r2206_1
# 2206| r2206_3(glval<unknown>) = FunctionAddress[ClassWithDestructor] :
# 2206| v2206_4(void) = Call[ClassWithDestructor] : func:r2206_3, this:r2206_1
# 2206| m2206_5(unknown) = ^CallSideEffect : ~m2204_6
# 2206| m2206_6(unknown) = Chi : total:m2204_6, partial:m2206_5
# 2206| m2206_7(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2206_1
# 2206| m2206_8(ClassWithDestructor) = Chi : total:m2206_2, partial:m2206_7
# 2206| r2206_9(glval<char>) = VariableAddress[c] :
# 2206| r2206_10(char) = Load[c] : &:r2206_9, m2199_8
# 2206| r2206_11(int) = Convert : r2206_10
# 2206| v2206_12(void) = Switch : r2206_11
# 2204| r2204_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2204| r2204_2(glval<unknown>) = FunctionAddress[set_x] :
# 2204| r2204_3(char) = Constant[97] :
# 2204| v2204_4(void) = Call[set_x] : func:r2204_2, this:r2204_1, 0:r2204_3
# 2204| m2204_5(unknown) = ^CallSideEffect : ~m2203_6
# 2204| m2204_6(unknown) = Chi : total:m2203_6, partial:m2204_5
# 2204| v2204_7(void) = ^IndirectReadSideEffect[-1] : &:r2204_1, m2203_8
# 2204| m2204_8(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2204_1
# 2204| m2204_9(ClassWithDestructor) = Chi : total:m2203_8, partial:m2204_8
# 2204| r2204_10(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2204| r2204_11(glval<unknown>) = FunctionAddress[~ClassWithDestructor] :
# 2204| v2204_12(void) = Call[~ClassWithDestructor] : func:r2204_11, this:r2204_10
# 2204| m2204_13(unknown) = ^CallSideEffect : ~m2204_6
# 2204| m2204_14(unknown) = Chi : total:m2204_6, partial:m2204_13
# 2204| v2204_15(void) = ^IndirectReadSideEffect[-1] : &:r2204_10, m2204_9
# 2204| m2204_16(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2204_10
# 2204| m2204_17(ClassWithDestructor) = Chi : total:m2204_9, partial:m2204_16
# 2206| r2206_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2206| m2206_2(ClassWithDestructor) = Uninitialized[x] : &:r2206_1
# 2206| r2206_3(glval<unknown>) = FunctionAddress[ClassWithDestructor] :
# 2206| v2206_4(void) = Call[ClassWithDestructor] : func:r2206_3, this:r2206_1
# 2206| m2206_5(unknown) = ^CallSideEffect : ~m2204_14
# 2206| m2206_6(unknown) = Chi : total:m2204_14, partial:m2206_5
# 2206| m2206_7(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2206_1
# 2206| m2206_8(ClassWithDestructor) = Chi : total:m2206_2, partial:m2206_7
# 2206| r2206_9(glval<char>) = VariableAddress[c] :
# 2206| r2206_10(char) = Load[c] : &:r2206_9, m2199_8
# 2206| r2206_11(int) = Convert : r2206_10
# 2206| v2206_12(void) = Switch : r2206_11
#-----| Case[97] -> Block 5
#-----| Default -> Block 6
@@ -18284,7 +18293,10 @@ ir.cpp:
#-----| True -> Block 1
# 2547| Block 1
# 2547| v2547_1(void) = NoOp :
# 2547| v2547_1(void) = NoOp :
#-----| Goto -> Block 2
# 2547| Block 2
# 2547| r2547_2(glval<ClassWithDestructor>) = CopyValue : r2546_2
# 2547| r2547_3(glval<unknown>) = FunctionAddress[~ClassWithDestructor] :
# 2547| v2547_4(void) = Call[~ClassWithDestructor] : func:r2547_3, this:r2547_2
@@ -18293,14 +18305,10 @@ ir.cpp:
# 2547| v2547_7(void) = ^IndirectReadSideEffect[-1] : &:r2547_2, ~m2547_6
# 2547| m2547_8(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2547_2
# 2547| m2547_9(unknown) = Chi : total:m2547_6, partial:m2547_8
#-----| Goto -> Block 2
# 2548| Block 2
# 2548| m2548_1(unknown) = Phi : from 0:~m2546_18, from 1:~m2547_9
# 2548| v2548_2(void) = NoOp :
# 2545| v2545_7(void) = ReturnVoid :
# 2545| v2545_8(void) = AliasedUse : ~m2548_1
# 2545| v2545_9(void) = ExitFunction :
# 2548| v2548_1(void) = NoOp :
# 2545| v2545_7(void) = ReturnVoid :
# 2545| v2545_8(void) = AliasedUse : ~m2547_6
# 2545| v2545_9(void) = ExitFunction :
# 2550| void constexpr_inconsistency(bool)
# 2550| Block 0
@@ -18326,11 +18334,19 @@ ir.cpp:
#-----| True -> Block 1
# 2552| Block 1
# 2552| v2552_1(void) = NoOp :
# 2553| v2553_1(void) = NoOp :
# 2550| v2550_7(void) = ReturnVoid :
# 2550| v2550_8(void) = AliasedUse : ~m2551_6
# 2550| v2550_9(void) = ExitFunction :
# 2552| v2552_1(void) = NoOp :
# 2552| r2552_2(glval<ClassWithDestructor>) = CopyValue : r2551_2
# 2552| r2552_3(glval<unknown>) = FunctionAddress[~ClassWithDestructor] :
# 2552| v2552_4(void) = Call[~ClassWithDestructor] : func:r2552_3, this:r2552_2
# 2552| m2552_5(unknown) = ^CallSideEffect : ~m2551_6
# 2552| m2552_6(unknown) = Chi : total:m2551_6, partial:m2552_5
# 2552| v2552_7(void) = ^IndirectReadSideEffect[-1] : &:r2552_2, m2551_7
# 2552| m2552_8(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2552_2
# 2552| m2552_9(ClassWithDestructor) = Chi : total:m2551_7, partial:m2552_8
# 2553| v2553_1(void) = NoOp :
# 2550| v2550_7(void) = ReturnVoid :
# 2550| v2550_8(void) = AliasedUse : ~m2552_6
# 2550| v2550_9(void) = ExitFunction :
# 2550| Block 2
# 2550| v2550_10(void) = Unreached :

1
cpp/ql/test/library-tests/ir/ir/raw_consistency.expected
View File

@@ -21,7 +21,6 @@ lostReachability
backEdgeCountMismatch
useNotDominatedByDefinition
| ir.cpp:1535:8:1535:8 | Unary | Operand 'Unary' is not dominated by its definition in function '$@'. | ir.cpp:1535:8:1535:8 | void StructuredBindingDataMemberStruct::StructuredBindingDataMemberStruct() | void StructuredBindingDataMemberStruct::StructuredBindingDataMemberStruct() |
| ir.cpp:2551:48:2551:71 | Unary | Operand 'Unary' is not dominated by its definition in function '$@'. | ir.cpp:2550:6:2550:28 | void constexpr_inconsistency(bool) | void constexpr_inconsistency(bool) |
| try_except.c:13:13:13:13 | Left | Operand 'Left' is not dominated by its definition in function '$@'. | try_except.c:6:6:6:6 | void f() | void f() |
| try_except.c:13:13:13:13 | Left | Operand 'Left' is not dominated by its definition in function '$@'. | try_except.c:6:6:6:6 | void f() | void f() |
| try_except.c:39:15:39:15 | Left | Operand 'Left' is not dominated by its definition in function '$@'. | try_except.c:32:6:32:6 | void h(int) | void h(int) |

184
cpp/ql/test/library-tests/ir/ir/raw_ir.expected
View File

@@ -14146,31 +14146,31 @@ ir.cpp:
# 2199| v2199_10(void) = ExitFunction :
# 2201| Block 2
# 2201| r2201_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2201| r2201_2(glval<unknown>) = FunctionAddress[set_x] :
# 2201| r2201_3(char) = Constant[97] :
# 2201| v2201_4(void) = Call[set_x] : func:r2201_2, this:r2201_1, 0:r2201_3
# 2201| mu2201_5(unknown) = ^CallSideEffect : ~m?
# 2201| v2201_6(void) = ^IndirectReadSideEffect[-1] : &:r2201_1, ~m?
# 2201| mu2201_7(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2201_1
# 2201| r2201_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2201| r2201_2(glval<unknown>) = FunctionAddress[set_x] :
# 2201| r2201_3(char) = Constant[97] :
# 2201| v2201_4(void) = Call[set_x] : func:r2201_2, this:r2201_1, 0:r2201_3
# 2201| mu2201_5(unknown) = ^CallSideEffect : ~m?
# 2201| v2201_6(void) = ^IndirectReadSideEffect[-1] : &:r2201_1, ~m?
# 2201| mu2201_7(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2201_1
#-----| Goto -> Block 3
# 2201| Block 3
# 2201| r2201_8(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2201| r2201_9(glval<unknown>) = FunctionAddress[~ClassWithDestructor] :
# 2201| v2201_10(void) = Call[~ClassWithDestructor] : func:r2201_9, this:r2201_8
# 2201| mu2201_11(unknown) = ^CallSideEffect : ~m?
# 2201| v2201_12(void) = ^IndirectReadSideEffect[-1] : &:r2201_8, ~m?
# 2201| mu2201_13(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2201_8
#-----| Goto -> Block 3
# 2203| Block 3
# 2203| r2203_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2203| mu2203_2(ClassWithDestructor) = Uninitialized[x] : &:r2203_1
# 2203| r2203_3(glval<unknown>) = FunctionAddress[ClassWithDestructor] :
# 2203| v2203_4(void) = Call[ClassWithDestructor] : func:r2203_3, this:r2203_1
# 2203| mu2203_5(unknown) = ^CallSideEffect : ~m?
# 2203| mu2203_6(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2203_1
# 2203| r2203_7(bool) = Constant[1] :
# 2203| v2203_8(void) = ConditionalBranch : r2203_7
#-----| False -> Block 6
# 2203| r2203_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2203| mu2203_2(ClassWithDestructor) = Uninitialized[x] : &:r2203_1
# 2203| r2203_3(glval<unknown>) = FunctionAddress[ClassWithDestructor] :
# 2203| v2203_4(void) = Call[ClassWithDestructor] : func:r2203_3, this:r2203_1
# 2203| mu2203_5(unknown) = ^CallSideEffect : ~m?
# 2203| mu2203_6(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2203_1
# 2203| r2203_7(bool) = Constant[1] :
# 2203| v2203_8(void) = ConditionalBranch : r2203_7
#-----| False -> Block 5
#-----| True -> Block 4
# 2204| Block 4
@@ -14181,7 +14181,7 @@ ir.cpp:
# 2204| mu2204_5(unknown) = ^CallSideEffect : ~m?
# 2204| v2204_6(void) = ^IndirectReadSideEffect[-1] : &:r2204_1, ~m?
# 2204| mu2204_7(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2204_1
#-----| Goto -> Block 6
#-----| Goto -> Block 5
# 2204| Block 5
# 2204| r2204_8(glval<ClassWithDestructor>) = VariableAddress[x] :
@@ -14190,23 +14190,20 @@ ir.cpp:
# 2204| mu2204_11(unknown) = ^CallSideEffect : ~m?
# 2204| v2204_12(void) = ^IndirectReadSideEffect[-1] : &:r2204_8, ~m?
# 2204| mu2204_13(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2204_8
#-----| Goto -> Block 6
# 2206| r2206_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2206| mu2206_2(ClassWithDestructor) = Uninitialized[x] : &:r2206_1
# 2206| r2206_3(glval<unknown>) = FunctionAddress[ClassWithDestructor] :
# 2206| v2206_4(void) = Call[ClassWithDestructor] : func:r2206_3, this:r2206_1
# 2206| mu2206_5(unknown) = ^CallSideEffect : ~m?
# 2206| mu2206_6(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2206_1
# 2206| r2206_7(glval<char>) = VariableAddress[c] :
# 2206| r2206_8(char) = Load[c] : &:r2206_7, ~m?
# 2206| r2206_9(int) = Convert : r2206_8
# 2206| v2206_10(void) = Switch : r2206_9
#-----| Case[97] -> Block 6
#-----| Default -> Block 7
# 2206| Block 6
# 2206| r2206_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2206| mu2206_2(ClassWithDestructor) = Uninitialized[x] : &:r2206_1
# 2206| r2206_3(glval<unknown>) = FunctionAddress[ClassWithDestructor] :
# 2206| v2206_4(void) = Call[ClassWithDestructor] : func:r2206_3, this:r2206_1
# 2206| mu2206_5(unknown) = ^CallSideEffect : ~m?
# 2206| mu2206_6(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2206_1
# 2206| r2206_7(glval<char>) = VariableAddress[c] :
# 2206| r2206_8(char) = Load[c] : &:r2206_7, ~m?
# 2206| r2206_9(int) = Convert : r2206_8
# 2206| v2206_10(void) = Switch : r2206_9
#-----| Case[97] -> Block 7
#-----| Default -> Block 8
# 2207| Block 7
# 2207| Block 6
# 2207| v2207_1(void) = NoOp :
# 2208| r2208_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2208| r2208_2(glval<unknown>) = FunctionAddress[set_x] :
@@ -14222,9 +14219,9 @@ ir.cpp:
# 2213| v2213_5(void) = ^IndirectReadSideEffect[-1] : &:r2213_1, ~m?
# 2213| mu2213_6(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2213_1
# 2209| v2209_1(void) = NoOp :
#-----| Goto -> Block 10
#-----| Goto -> Block 9
# 2210| Block 8
# 2210| Block 7
# 2210| v2210_1(void) = NoOp :
# 2211| r2211_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2211| r2211_2(glval<unknown>) = FunctionAddress[set_x] :
@@ -14240,18 +14237,18 @@ ir.cpp:
# 2213| v2213_11(void) = ^IndirectReadSideEffect[-1] : &:r2213_7, ~m?
# 2213| mu2213_12(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2213_7
# 2212| v2212_1(void) = NoOp :
#-----| Goto -> Block 10
#-----| Goto -> Block 9
# 2213| Block 9
# 2213| Block 8
# 2213| r2213_13(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2213| r2213_14(glval<unknown>) = FunctionAddress[~ClassWithDestructor] :
# 2213| v2213_15(void) = Call[~ClassWithDestructor] : func:r2213_14, this:r2213_13
# 2213| mu2213_16(unknown) = ^CallSideEffect : ~m?
# 2213| v2213_17(void) = ^IndirectReadSideEffect[-1] : &:r2213_13, ~m?
# 2213| mu2213_18(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2213_13
#-----| Goto -> Block 10
#-----| Goto -> Block 9
# 2213| Block 10
# 2213| Block 9
# 2213| v2213_19(void) = NoOp :
# 2215| r2215_1(glval<ClassWithDestructor>) = VariableAddress[x] :
# 2215| mu2215_2(ClassWithDestructor) = Uninitialized[x] : &:r2215_1
@@ -14298,9 +14295,9 @@ ir.cpp:
# 2216| r2216_32(iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>) = Call[end] : func:r2216_31, this:r0_5
#-----| v0_6(void) = ^IndirectReadSideEffect[-1] : &:r0_5, ~m?
# 2216| mu2216_33(iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>) = Store[(__end)] : &:r2216_28, r2216_32
#-----| Goto -> Block 11
#-----| Goto -> Block 10
# 2216| Block 11
# 2216| Block 10
# 2216| r2216_34(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = VariableAddress[(__begin)] :
#-----| r0_7(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = Convert : r2216_34
# 2216| r2216_35(glval<unknown>) = FunctionAddress[operator!=] :
@@ -14318,10 +14315,10 @@ ir.cpp:
# 2216| r2216_41(bool) = Call[operator!=] : func:r2216_35, this:r0_7, 0:r0_13
#-----| v0_14(void) = ^IndirectReadSideEffect[-1] : &:r0_7, ~m?
# 2216| v2216_42(void) = ConditionalBranch : r2216_41
#-----| False -> Block 13
#-----| True -> Block 12
#-----| False -> Block 12
#-----| True -> Block 11
# 2216| Block 12
# 2216| Block 11
# 2216| r2216_43(glval<ClassWithDestructor>) = VariableAddress[y] :
# 2216| r2216_44(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = VariableAddress[(__begin)] :
#-----| r0_15(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = Convert : r2216_44
@@ -14349,9 +14346,9 @@ ir.cpp:
# 2216| v2216_58(void) = ^IndirectReadSideEffect[-1] : &:r2216_54, ~m?
# 2216| mu2216_59(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2216_54
# 2216| r2216_60(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = CopyValue : r2216_51
#-----| Goto (back edge) -> Block 11
#-----| Goto (back edge) -> Block 10
# 2216| Block 13
# 2216| Block 12
# 2216| r2216_61(glval<vector<ClassWithDestructor>>) = VariableAddress[ys] :
# 2216| r2216_62(glval<unknown>) = FunctionAddress[~vector] :
# 2216| v2216_63(void) = Call[~vector] : func:r2216_62, this:r2216_61
@@ -14397,9 +14394,9 @@ ir.cpp:
# 2219| r2219_32(iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>) = Call[end] : func:r2219_31, this:r0_21
#-----| v0_22(void) = ^IndirectReadSideEffect[-1] : &:r0_21, ~m?
# 2219| mu2219_33(iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>) = Store[(__end)] : &:r2219_28, r2219_32
#-----| Goto -> Block 14
#-----| Goto -> Block 13
# 2219| Block 14
# 2219| Block 13
# 2219| r2219_34(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = VariableAddress[(__begin)] :
#-----| r0_23(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = Convert : r2219_34
# 2219| r2219_35(glval<unknown>) = FunctionAddress[operator!=] :
@@ -14417,10 +14414,10 @@ ir.cpp:
# 2219| r2219_41(bool) = Call[operator!=] : func:r2219_35, this:r0_23, 0:r0_29
#-----| v0_30(void) = ^IndirectReadSideEffect[-1] : &:r0_23, ~m?
# 2219| v2219_42(void) = ConditionalBranch : r2219_41
#-----| False -> Block 18
#-----| True -> Block 16
#-----| False -> Block 17
#-----| True -> Block 15
# 2219| Block 15
# 2219| Block 14
# 2219| r2219_43(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = VariableAddress[(__begin)] :
# 2219| r2219_44(glval<unknown>) = FunctionAddress[operator++] :
# 2219| r2219_45(iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &> &) = Call[operator++] : func:r2219_44, this:r2219_43
@@ -14433,9 +14430,9 @@ ir.cpp:
# 2219| v2219_52(void) = ^IndirectReadSideEffect[-1] : &:r2219_48, ~m?
# 2219| mu2219_53(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2219_48
# 2219| r2219_54(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = CopyValue : r2219_45
#-----| Goto (back edge) -> Block 14
#-----| Goto (back edge) -> Block 13
# 2219| Block 16
# 2219| Block 15
# 2219| r2219_55(glval<ClassWithDestructor>) = VariableAddress[y] :
# 2219| r2219_56(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = VariableAddress[(__begin)] :
#-----| r0_31(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = Convert : r2219_56
@@ -14461,10 +14458,10 @@ ir.cpp:
# 2221| r2221_8(int) = Constant[98] :
# 2221| r2221_9(bool) = CompareEQ : r2221_7, r2221_8
# 2221| v2221_10(void) = ConditionalBranch : r2221_9
#-----| False -> Block 15
#-----| True -> Block 17
#-----| False -> Block 14
#-----| True -> Block 16
# 2222| Block 17
# 2222| Block 16
# 2222| v2222_1(void) = NoOp :
# 2219| r2219_61(glval<ClassWithDestructor>) = VariableAddress[y] :
# 2219| r2219_62(glval<unknown>) = FunctionAddress[~ClassWithDestructor] :
@@ -14486,7 +14483,7 @@ ir.cpp:
# 2234| mu2234_6(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2234_1
#-----| Goto -> Block 1
# 2219| Block 18
# 2219| Block 17
# 2219| r2219_73(glval<vector<ClassWithDestructor>>) = VariableAddress[ys] :
# 2219| r2219_74(glval<unknown>) = FunctionAddress[~vector] :
# 2219| v2219_75(void) = Call[~vector] : func:r2219_74, this:r2219_73
@@ -14522,9 +14519,9 @@ ir.cpp:
# 2225| r2225_22(iterator<random_access_iterator_tag, int, ptrdiff_t, int *, int &>) = Call[end] : func:r2225_21, this:r0_37
#-----| v0_38(void) = ^IndirectReadSideEffect[-1] : &:r0_37, ~m?
# 2225| mu2225_23(iterator<random_access_iterator_tag, int, ptrdiff_t, int *, int &>) = Store[(__end)] : &:r2225_18, r2225_22
#-----| Goto -> Block 19
#-----| Goto -> Block 18
# 2225| Block 19
# 2225| Block 18
# 2225| r2225_24(glval<iterator<random_access_iterator_tag, int, ptrdiff_t, int *, int &>>) = VariableAddress[(__begin)] :
#-----| r0_39(glval<iterator<random_access_iterator_tag, int, ptrdiff_t, int *, int &>>) = Convert : r2225_24
# 2225| r2225_25(glval<unknown>) = FunctionAddress[operator!=] :
@@ -14542,19 +14539,19 @@ ir.cpp:
# 2225| r2225_31(bool) = Call[operator!=] : func:r2225_25, this:r0_39, 0:r0_45
#-----| v0_46(void) = ^IndirectReadSideEffect[-1] : &:r0_39, ~m?
# 2225| v2225_32(void) = ConditionalBranch : r2225_31
#-----| False -> Block 23
#-----| True -> Block 21
#-----| False -> Block 22
#-----| True -> Block 20
# 2225| Block 20
# 2225| Block 19
# 2225| r2225_33(glval<iterator<random_access_iterator_tag, int, ptrdiff_t, int *, int &>>) = VariableAddress[(__begin)] :
# 2225| r2225_34(glval<unknown>) = FunctionAddress[operator++] :
# 2225| r2225_35(iterator<random_access_iterator_tag, int, ptrdiff_t, int *, int &> &) = Call[operator++] : func:r2225_34, this:r2225_33
# 2225| v2225_36(void) = ^IndirectReadSideEffect[-1] : &:r2225_33, ~m?
# 2225| mu2225_37(iterator<random_access_iterator_tag, int, ptrdiff_t, int *, int &>) = ^IndirectMayWriteSideEffect[-1] : &:r2225_33
# 2225| r2225_38(glval<iterator<random_access_iterator_tag, int, ptrdiff_t, int *, int &>>) = CopyValue : r2225_35
#-----| Goto (back edge) -> Block 19
#-----| Goto (back edge) -> Block 18
# 2225| Block 21
# 2225| Block 20
# 2225| r2225_39(glval<int>) = VariableAddress[y] :
# 2225| r2225_40(glval<iterator<random_access_iterator_tag, int, ptrdiff_t, int *, int &>>) = VariableAddress[(__begin)] :
#-----| r0_47(glval<iterator<random_access_iterator_tag, int, ptrdiff_t, int *, int &>>) = Convert : r2225_40
@@ -14568,10 +14565,10 @@ ir.cpp:
# 2226| r2226_3(int) = Constant[1] :
# 2226| r2226_4(bool) = CompareEQ : r2226_2, r2226_3
# 2226| v2226_5(void) = ConditionalBranch : r2226_4
#-----| False -> Block 20
#-----| True -> Block 22
#-----| False -> Block 19
#-----| True -> Block 21
# 2227| Block 22
# 2227| Block 21
# 2227| v2227_1(void) = NoOp :
# 2225| r2225_45(glval<vector<int>>) = VariableAddress[ys] :
# 2225| r2225_46(glval<unknown>) = FunctionAddress[~vector] :
@@ -14587,7 +14584,7 @@ ir.cpp:
# 2234| mu2234_12(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2234_7
#-----| Goto -> Block 1
# 2225| Block 23
# 2225| Block 22
# 2225| r2225_51(glval<vector<int>>) = VariableAddress[ys] :
# 2225| r2225_52(glval<unknown>) = FunctionAddress[~vector] :
# 2225| v2225_53(void) = Call[~vector] : func:r2225_52, this:r2225_51
@@ -14633,9 +14630,9 @@ ir.cpp:
# 2230| r2230_32(iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>) = Call[end] : func:r2230_31, this:r0_53
#-----| v0_54(void) = ^IndirectReadSideEffect[-1] : &:r0_53, ~m?
# 2230| mu2230_33(iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>) = Store[(__end)] : &:r2230_28, r2230_32
#-----| Goto -> Block 24
#-----| Goto -> Block 23
# 2230| Block 24
# 2230| Block 23
# 2230| r2230_34(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = VariableAddress[(__begin)] :
#-----| r0_55(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = Convert : r2230_34
# 2230| r2230_35(glval<unknown>) = FunctionAddress[operator!=] :
@@ -14653,10 +14650,10 @@ ir.cpp:
# 2230| r2230_41(bool) = Call[operator!=] : func:r2230_35, this:r0_55, 0:r0_61
#-----| v0_62(void) = ^IndirectReadSideEffect[-1] : &:r0_55, ~m?
# 2230| v2230_42(void) = ConditionalBranch : r2230_41
#-----| False -> Block 26
#-----| True -> Block 25
#-----| False -> Block 25
#-----| True -> Block 24
# 2230| Block 25
# 2230| Block 24
# 2230| r2230_43(glval<ClassWithDestructor>) = VariableAddress[y] :
# 2230| r2230_44(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = VariableAddress[(__begin)] :
#-----| r0_63(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = Convert : r2230_44
@@ -14701,9 +14698,9 @@ ir.cpp:
# 2230| v2230_58(void) = ^IndirectReadSideEffect[-1] : &:r2230_54, ~m?
# 2230| mu2230_59(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2230_54
# 2230| r2230_60(glval<iterator<random_access_iterator_tag, ClassWithDestructor, ptrdiff_t, ClassWithDestructor *, ClassWithDestructor &>>) = CopyValue : r2230_51
#-----| Goto (back edge) -> Block 24
#-----| Goto (back edge) -> Block 23
# 2230| Block 26
# 2230| Block 25
# 2230| r2230_61(glval<vector<ClassWithDestructor>>) = VariableAddress[ys] :
# 2230| r2230_62(glval<unknown>) = FunctionAddress[~vector] :
# 2230| v2230_63(void) = Call[~vector] : func:r2230_62, this:r2230_61
@@ -16644,20 +16641,20 @@ ir.cpp:
#-----| True -> Block 1
# 2547| Block 1
# 2547| v2547_1(void) = NoOp :
# 2547| v2547_1(void) = NoOp :
#-----| Goto -> Block 2
# 2547| Block 2
# 2547| r2547_2(glval<ClassWithDestructor>) = CopyValue : r2546_2
# 2547| r2547_3(glval<unknown>) = FunctionAddress[~ClassWithDestructor] :
# 2547| v2547_4(void) = Call[~ClassWithDestructor] : func:r2547_3, this:r2547_2
# 2547| mu2547_5(unknown) = ^CallSideEffect : ~m?
# 2547| v2547_6(void) = ^IndirectReadSideEffect[-1] : &:r2547_2, ~m?
# 2547| mu2547_7(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2547_2
#-----| Goto -> Block 2
# 2548| Block 2
# 2548| v2548_1(void) = NoOp :
# 2545| v2545_6(void) = ReturnVoid :
# 2545| v2545_7(void) = AliasedUse : ~m?
# 2545| v2545_8(void) = ExitFunction :
# 2548| v2548_1(void) = NoOp :
# 2545| v2545_6(void) = ReturnVoid :
# 2545| v2545_7(void) = AliasedUse : ~m?
# 2545| v2545_8(void) = ExitFunction :
# 2550| void constexpr_inconsistency(bool)
# 2550| Block 0
@@ -16677,12 +16674,12 @@ ir.cpp:
# 2551| mu2551_9(ClassWithDestructor &) = Store[a] : &:r2551_1, r2551_8
# 2551| r2551_10(bool) = Constant[1] :
# 2551| v2551_11(void) = ConditionalBranch : r2551_10
#-----| False -> Block 3
#-----| False -> Block 2
#-----| True -> Block 1
# 2552| Block 1
# 2552| v2552_1(void) = NoOp :
#-----| Goto -> Block 3
#-----| Goto -> Block 2
# 2552| Block 2
# 2552| r2552_2(glval<ClassWithDestructor>) = CopyValue : r2551_2
@@ -16691,13 +16688,10 @@ ir.cpp:
# 2552| mu2552_5(unknown) = ^CallSideEffect : ~m?
# 2552| v2552_6(void) = ^IndirectReadSideEffect[-1] : &:r2552_2, ~m?
# 2552| mu2552_7(ClassWithDestructor) = ^IndirectMayWriteSideEffect[-1] : &:r2552_2
#-----| Goto -> Block 3
# 2553| Block 3
# 2553| v2553_1(void) = NoOp :
# 2550| v2550_6(void) = ReturnVoid :
# 2550| v2550_7(void) = AliasedUse : ~m?
# 2550| v2550_8(void) = ExitFunction :
# 2553| v2553_1(void) = NoOp :
# 2550| v2550_6(void) = ReturnVoid :
# 2550| v2550_7(void) = AliasedUse : ~m?
# 2550| v2550_8(void) = ExitFunction :
perf-regression.cpp:
# 6| void Big::Big()