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C++: Output necessary conversions in the sizeof VLA IR
This commit is contained in:
Jeroen Ketema
@@ -99,6 +99,9 @@ newtype TInstructionTag =
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CoAwaitBranchTag() or
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BoolToIntConversionTag() or
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SizeofVlaBaseSizeTag() or
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SizeofVlaConversionTag(int index) {
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exists(VlaDeclStmt v | exists(v.getTransitiveVlaDimensionStmt(index)))
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} or
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SizeofVlaDimensionTag(int index) {
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exists(VlaDeclStmt v | exists(v.getTransitiveVlaDimensionStmt(index)))
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}
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@@ -4131,6 +4131,23 @@ class TranslatedSizeofExpr extends TranslatedNonConstantExpr {
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tag = SizeofVlaBaseSizeTag() and
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resultType = this.getResultType()
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or
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exists(int n, Type dimType |
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pointerDerefCount <= n and
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n < vlaDimensions and
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dimType = vlaDeclStmt.getTransitiveVlaDimensionStmt(n).getDimensionExpr().getUnderlyingType()
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(
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expr.getUnderlyingType() = dimType and
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opcode instanceof Opcode::CopyValue and
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tag = SizeofVlaConversionTag(n)
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or
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not expr.getUnderlyingType() = dimType and
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opcode instanceof Opcode::Convert and
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tag = SizeofVlaConversionTag(n)
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)
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) and
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resultType = this.getResultType()
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or
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opcode instanceof Opcode::Mul and
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exists(int n | pointerDerefCount <= n and n < vlaDimensions | tag = SizeofVlaDimensionTag(n)) and
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resultType = this.getResultType()
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@@ -4138,12 +4155,18 @@ class TranslatedSizeofExpr extends TranslatedNonConstantExpr {
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final override Instruction getInstructionSuccessorInternal(InstructionTag tag, EdgeKind kind) {
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tag = SizeofVlaBaseSizeTag() and
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result = this.getInstruction(SizeofVlaDimensionTag(pointerDerefCount)) and
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result = this.getInstruction(SizeofVlaConversionTag(pointerDerefCount)) and
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kind instanceof GotoEdge
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or
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exists(int n | pointerDerefCount <= n and n < vlaDimensions |
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tag = SizeofVlaConversionTag(n) and
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result = this.getInstruction(SizeofVlaDimensionTag(n))
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) and
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kind instanceof GotoEdge
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or
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exists(int n | pointerDerefCount <= n and n < vlaDimensions - 1 |
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tag = SizeofVlaDimensionTag(n) and
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result = this.getInstruction(SizeofVlaDimensionTag(n + 1))
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result = this.getInstruction(SizeofVlaConversionTag(n + 1))
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) and
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kind instanceof GotoEdge
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or
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@@ -4176,6 +4199,16 @@ class TranslatedSizeofExpr extends TranslatedNonConstantExpr {
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}
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override Instruction getInstructionRegisterOperand(InstructionTag tag, OperandTag operandTag) {
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exists(int n | pointerDerefCount <= n and n < vlaDimensions |
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tag = SizeofVlaConversionTag(n) and
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(
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operandTag instanceof UnaryOperandTag and
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result =
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getTranslatedExpr(vlaDeclStmt.getTransitiveVlaDimensionStmt(n).getDimensionExpr())
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.getResult()
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)
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)
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or
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exists(int n | pointerDerefCount <= n and n < vlaDimensions |
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tag = SizeofVlaDimensionTag(n) and
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(
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@@ -4189,9 +4222,7 @@ class TranslatedSizeofExpr extends TranslatedNonConstantExpr {
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)
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or
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operandTag instanceof RightOperandTag and
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result =
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getTranslatedExpr(vlaDeclStmt.getTransitiveVlaDimensionStmt(n).getDimensionExpr())
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.getResult()
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result = this.getInstruction(SizeofVlaConversionTag(n))
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)
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)
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}
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@@ -20449,8 +20449,9 @@ ir.cpp:
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# 2780| v2780_5(void) = NoOp :
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# 2781| r2781_1(glval<unsigned long>) = VariableAddress[x] :
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# 2781| r2781_2(unsigned long) = Constant[1] :
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# 2781| r2781_3(unsigned long) = Mul : r2781_2, r2780_4
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# 2781| m2781_4(unsigned long) = Store[x] : &:r2781_1, r2781_3
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# 2781| r2781_3(unsigned long) = Convert : r2780_4
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# 2781| r2781_4(unsigned long) = Mul : r2781_2, r2781_3
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# 2781| m2781_5(unsigned long) = Store[x] : &:r2781_1, r2781_4
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# 2782| r2782_1(glval<int[][]>) = VariableAddress[tmp2] :
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# 2782| m2782_2(int[][]) = Uninitialized[tmp2] : &:r2782_1
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# 2782| r2782_3(glval<int>) = VariableAddress[len1] :
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@@ -20460,13 +20461,16 @@ ir.cpp:
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# 2782| v2782_7(void) = NoOp :
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# 2783| r2783_1(glval<unsigned long>) = VariableAddress[y] :
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# 2783| r2783_2(unsigned long) = Constant[4] :
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# 2783| r2783_3(unsigned long) = Mul : r2783_2, r2782_4
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# 2783| r2783_4(unsigned long) = Mul : r2783_3, r2782_6
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# 2783| m2783_5(unsigned long) = Store[y] : &:r2783_1, r2783_4
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# 2783| r2783_3(unsigned long) = Convert : r2782_4
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# 2783| r2783_4(unsigned long) = Mul : r2783_2, r2783_3
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# 2783| r2783_5(unsigned long) = CopyValue : r2782_6
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# 2783| r2783_6(unsigned long) = Mul : r2783_4, r2783_5
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# 2783| m2783_7(unsigned long) = Store[y] : &:r2783_1, r2783_6
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# 2784| r2784_1(glval<unsigned long>) = VariableAddress[z] :
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# 2784| r2784_2(unsigned long) = Constant[4] :
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# 2784| r2784_3(unsigned long) = Mul : r2784_2, r2782_6
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# 2784| m2784_4(unsigned long) = Store[z] : &:r2784_1, r2784_3
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# 2784| r2784_3(unsigned long) = CopyValue : r2782_6
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# 2784| r2784_4(unsigned long) = Mul : r2784_2, r2784_3
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# 2784| m2784_5(unsigned long) = Store[z] : &:r2784_1, r2784_4
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# 2785| r2785_1(glval<int[][][]>) = VariableAddress[tmp3] :
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# 2785| m2785_2(int[][][]) = Uninitialized[tmp3] : &:r2785_1
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# 2785| r2785_3(glval<int>) = VariableAddress[len1] :
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@@ -20478,19 +20482,25 @@ ir.cpp:
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# 2785| v2785_9(void) = NoOp :
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# 2786| r2786_1(glval<unsigned long>) = VariableAddress[w] :
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# 2786| r2786_2(unsigned long) = Constant[4] :
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# 2786| r2786_3(unsigned long) = Mul : r2786_2, r2785_4
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# 2786| r2786_4(unsigned long) = Mul : r2786_3, r2785_6
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# 2786| r2786_5(unsigned long) = Mul : r2786_4, r2785_8
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# 2786| m2786_6(unsigned long) = Store[w] : &:r2786_1, r2786_5
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# 2786| r2786_3(unsigned long) = Convert : r2785_4
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# 2786| r2786_4(unsigned long) = Mul : r2786_2, r2786_3
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# 2786| r2786_5(unsigned long) = CopyValue : r2785_6
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# 2786| r2786_6(unsigned long) = Mul : r2786_4, r2786_5
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# 2786| r2786_7(unsigned long) = Convert : r2785_8
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# 2786| r2786_8(unsigned long) = Mul : r2786_6, r2786_7
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# 2786| m2786_9(unsigned long) = Store[w] : &:r2786_1, r2786_8
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# 2787| r2787_1(glval<unsigned long>) = VariableAddress[v] :
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# 2787| r2787_2(unsigned long) = Constant[4] :
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# 2787| r2787_3(unsigned long) = Mul : r2787_2, r2785_6
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# 2787| r2787_4(unsigned long) = Mul : r2787_3, r2785_8
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# 2787| m2787_5(unsigned long) = Store[v] : &:r2787_1, r2787_4
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# 2787| r2787_3(unsigned long) = CopyValue : r2785_6
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# 2787| r2787_4(unsigned long) = Mul : r2787_2, r2787_3
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# 2787| r2787_5(unsigned long) = Convert : r2785_8
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# 2787| r2787_6(unsigned long) = Mul : r2787_4, r2787_5
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# 2787| m2787_7(unsigned long) = Store[v] : &:r2787_1, r2787_6
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# 2788| r2788_1(glval<unsigned long>) = VariableAddress[u] :
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# 2788| r2788_2(unsigned long) = Constant[4] :
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# 2788| r2788_3(unsigned long) = Mul : r2788_2, r2785_8
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# 2788| m2788_4(unsigned long) = Store[u] : &:r2788_1, r2788_3
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# 2788| r2788_3(unsigned long) = Convert : r2785_8
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# 2788| r2788_4(unsigned long) = Mul : r2788_2, r2788_3
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# 2788| m2788_5(unsigned long) = Store[u] : &:r2788_1, r2788_4
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# 2789| r2789_1(glval<unsigned long>) = VariableAddress[t] :
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# 2789| r2789_2(unsigned long) = Constant[4] :
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# 2789| m2789_3(unsigned long) = Store[t] : &:r2789_1, r2789_2
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@@ -20520,8 +20530,9 @@ ir.cpp:
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# 2793| v2793_7(void) = NoOp :
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# 2794| r2794_1(glval<unsigned long>) = VariableAddress[z] :
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# 2794| r2794_2(unsigned long) = Constant[4] :
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# 2794| r2794_3(unsigned long) = Mul : r2794_2, r2793_6
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# 2794| m2794_4(unsigned long) = Store[z] : &:r2794_1, r2794_3
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# 2794| r2794_3(unsigned long) = CopyValue : r2793_6
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# 2794| r2794_4(unsigned long) = Mul : r2794_2, r2794_3
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# 2794| m2794_5(unsigned long) = Store[z] : &:r2794_1, r2794_4
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# 2795| r2795_1(glval<int[][][]>) = VariableAddress[tmp2] :
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# 2795| m2795_2(int[][][]) = Uninitialized[tmp2] : &:r2795_1
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# 2795| r2795_3(glval<int>) = VariableAddress[len1] :
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@@ -20533,13 +20544,16 @@ ir.cpp:
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# 2795| v2795_9(void) = NoOp :
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# 2796| r2796_1(glval<unsigned long>) = VariableAddress[v] :
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# 2796| r2796_2(unsigned long) = Constant[4] :
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# 2796| r2796_3(unsigned long) = Mul : r2796_2, r2795_6
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# 2796| r2796_4(unsigned long) = Mul : r2796_3, r2795_8
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# 2796| m2796_5(unsigned long) = Store[v] : &:r2796_1, r2796_4
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# 2796| r2796_3(unsigned long) = CopyValue : r2795_6
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# 2796| r2796_4(unsigned long) = Mul : r2796_2, r2796_3
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# 2796| r2796_5(unsigned long) = Convert : r2795_8
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# 2796| r2796_6(unsigned long) = Mul : r2796_4, r2796_5
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# 2796| m2796_7(unsigned long) = Store[v] : &:r2796_1, r2796_6
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# 2797| r2797_1(glval<unsigned long>) = VariableAddress[u] :
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# 2797| r2797_2(unsigned long) = Constant[4] :
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# 2797| r2797_3(unsigned long) = Mul : r2797_2, r2795_8
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# 2797| m2797_4(unsigned long) = Store[u] : &:r2797_1, r2797_3
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# 2797| r2797_3(unsigned long) = Convert : r2795_8
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# 2797| r2797_4(unsigned long) = Mul : r2797_2, r2797_3
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# 2797| m2797_5(unsigned long) = Store[u] : &:r2797_1, r2797_4
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# 2798| r2798_1(glval<unsigned long>) = VariableAddress[t] :
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# 2798| r2798_2(unsigned long) = Constant[4] :
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# 2798| m2798_3(unsigned long) = Store[t] : &:r2798_1, r2798_2
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@@ -20578,7 +20592,7 @@ ir.cpp:
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#-----| True -> Block 2
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# 2801| Block 1
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# 2801| m2801_13(unsigned long) = Phi : from 2:m2808_5, from 3:m2811_3
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# 2801| m2801_13(unsigned long) = Phi : from 2:m2808_7, from 3:m2811_3
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# 2801| r2801_14(glval<unsigned long>) = VariableAddress[#return] :
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# 2801| v2801_15(void) = ReturnValue : &:r2801_14, m2801_13
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# 2801| v2801_16(void) = AliasedUse : m2801_3
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@@ -20590,9 +20604,11 @@ ir.cpp:
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# 2807| v2807_3(void) = NoOp :
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# 2808| r2808_1(glval<unsigned long>) = VariableAddress[#return] :
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# 2808| r2808_2(unsigned long) = Constant[8] :
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# 2808| r2808_3(unsigned long) = Mul : r2808_2, r2802_2
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# 2808| r2808_4(unsigned long) = Mul : r2808_3, r2802_4
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# 2808| m2808_5(unsigned long) = Store[#return] : &:r2808_1, r2808_4
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# 2808| r2808_3(unsigned long) = Convert : r2802_2
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# 2808| r2808_4(unsigned long) = Mul : r2808_2, r2808_3
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# 2808| r2808_5(unsigned long) = CopyValue : r2802_4
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# 2808| r2808_6(unsigned long) = Mul : r2808_4, r2808_5
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# 2808| m2808_7(unsigned long) = Store[#return] : &:r2808_1, r2808_6
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#-----| Goto -> Block 1
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# 2811| Block 3
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@@ -18595,8 +18595,9 @@ ir.cpp:
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# 2780| v2780_5(void) = NoOp :
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# 2781| r2781_1(glval<unsigned long>) = VariableAddress[x] :
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# 2781| r2781_2(unsigned long) = Constant[1] :
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# 2781| r2781_3(unsigned long) = Mul : r2781_2, r2780_4
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# 2781| mu2781_4(unsigned long) = Store[x] : &:r2781_1, r2781_3
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# 2781| r2781_3(unsigned long) = Convert : r2780_4
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# 2781| r2781_4(unsigned long) = Mul : r2781_2, r2781_3
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# 2781| mu2781_5(unsigned long) = Store[x] : &:r2781_1, r2781_4
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# 2782| r2782_1(glval<int[][]>) = VariableAddress[tmp2] :
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# 2782| mu2782_2(int[][]) = Uninitialized[tmp2] : &:r2782_1
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# 2782| r2782_3(glval<int>) = VariableAddress[len1] :
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@@ -18606,13 +18607,16 @@ ir.cpp:
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# 2782| v2782_7(void) = NoOp :
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# 2783| r2783_1(glval<unsigned long>) = VariableAddress[y] :
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# 2783| r2783_2(unsigned long) = Constant[4] :
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# 2783| r2783_3(unsigned long) = Mul : r2783_2, r2782_4
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# 2783| r2783_4(unsigned long) = Mul : r2783_3, r2782_6
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# 2783| mu2783_5(unsigned long) = Store[y] : &:r2783_1, r2783_4
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# 2783| r2783_3(unsigned long) = Convert : r2782_4
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# 2783| r2783_4(unsigned long) = Mul : r2783_2, r2783_3
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# 2783| r2783_5(unsigned long) = CopyValue : r2782_6
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# 2783| r2783_6(unsigned long) = Mul : r2783_4, r2783_5
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# 2783| mu2783_7(unsigned long) = Store[y] : &:r2783_1, r2783_6
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# 2784| r2784_1(glval<unsigned long>) = VariableAddress[z] :
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# 2784| r2784_2(unsigned long) = Constant[4] :
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# 2784| r2784_3(unsigned long) = Mul : r2784_2, r2782_6
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# 2784| mu2784_4(unsigned long) = Store[z] : &:r2784_1, r2784_3
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# 2784| r2784_3(unsigned long) = CopyValue : r2782_6
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# 2784| r2784_4(unsigned long) = Mul : r2784_2, r2784_3
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# 2784| mu2784_5(unsigned long) = Store[z] : &:r2784_1, r2784_4
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# 2785| r2785_1(glval<int[][][]>) = VariableAddress[tmp3] :
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# 2785| mu2785_2(int[][][]) = Uninitialized[tmp3] : &:r2785_1
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# 2785| r2785_3(glval<int>) = VariableAddress[len1] :
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@@ -18624,19 +18628,25 @@ ir.cpp:
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# 2785| v2785_9(void) = NoOp :
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# 2786| r2786_1(glval<unsigned long>) = VariableAddress[w] :
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# 2786| r2786_2(unsigned long) = Constant[4] :
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# 2786| r2786_3(unsigned long) = Mul : r2786_2, r2785_4
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# 2786| r2786_4(unsigned long) = Mul : r2786_3, r2785_6
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# 2786| r2786_5(unsigned long) = Mul : r2786_4, r2785_8
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# 2786| mu2786_6(unsigned long) = Store[w] : &:r2786_1, r2786_5
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# 2786| r2786_3(unsigned long) = Convert : r2785_4
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# 2786| r2786_4(unsigned long) = Mul : r2786_2, r2786_3
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# 2786| r2786_5(unsigned long) = CopyValue : r2785_6
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# 2786| r2786_6(unsigned long) = Mul : r2786_4, r2786_5
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# 2786| r2786_7(unsigned long) = Convert : r2785_8
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# 2786| r2786_8(unsigned long) = Mul : r2786_6, r2786_7
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# 2786| mu2786_9(unsigned long) = Store[w] : &:r2786_1, r2786_8
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# 2787| r2787_1(glval<unsigned long>) = VariableAddress[v] :
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# 2787| r2787_2(unsigned long) = Constant[4] :
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# 2787| r2787_3(unsigned long) = Mul : r2787_2, r2785_6
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# 2787| r2787_4(unsigned long) = Mul : r2787_3, r2785_8
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# 2787| mu2787_5(unsigned long) = Store[v] : &:r2787_1, r2787_4
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# 2787| r2787_3(unsigned long) = CopyValue : r2785_6
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# 2787| r2787_4(unsigned long) = Mul : r2787_2, r2787_3
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# 2787| r2787_5(unsigned long) = Convert : r2785_8
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# 2787| r2787_6(unsigned long) = Mul : r2787_4, r2787_5
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# 2787| mu2787_7(unsigned long) = Store[v] : &:r2787_1, r2787_6
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# 2788| r2788_1(glval<unsigned long>) = VariableAddress[u] :
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# 2788| r2788_2(unsigned long) = Constant[4] :
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# 2788| r2788_3(unsigned long) = Mul : r2788_2, r2785_8
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# 2788| mu2788_4(unsigned long) = Store[u] : &:r2788_1, r2788_3
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# 2788| r2788_3(unsigned long) = Convert : r2785_8
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# 2788| r2788_4(unsigned long) = Mul : r2788_2, r2788_3
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# 2788| mu2788_5(unsigned long) = Store[u] : &:r2788_1, r2788_4
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# 2789| r2789_1(glval<unsigned long>) = VariableAddress[t] :
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# 2789| r2789_2(unsigned long) = Constant[4] :
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# 2789| mu2789_3(unsigned long) = Store[t] : &:r2789_1, r2789_2
|
||||
@@ -18665,8 +18675,9 @@ ir.cpp:
|
||||
# 2793| v2793_7(void) = NoOp :
|
||||
# 2794| r2794_1(glval<unsigned long>) = VariableAddress[z] :
|
||||
# 2794| r2794_2(unsigned long) = Constant[4] :
|
||||
# 2794| r2794_3(unsigned long) = Mul : r2794_2, r2793_6
|
||||
# 2794| mu2794_4(unsigned long) = Store[z] : &:r2794_1, r2794_3
|
||||
# 2794| r2794_3(unsigned long) = CopyValue : r2793_6
|
||||
# 2794| r2794_4(unsigned long) = Mul : r2794_2, r2794_3
|
||||
# 2794| mu2794_5(unsigned long) = Store[z] : &:r2794_1, r2794_4
|
||||
# 2795| r2795_1(glval<int[][][]>) = VariableAddress[tmp2] :
|
||||
# 2795| mu2795_2(int[][][]) = Uninitialized[tmp2] : &:r2795_1
|
||||
# 2795| r2795_3(glval<int>) = VariableAddress[len1] :
|
||||
@@ -18678,13 +18689,16 @@ ir.cpp:
|
||||
# 2795| v2795_9(void) = NoOp :
|
||||
# 2796| r2796_1(glval<unsigned long>) = VariableAddress[v] :
|
||||
# 2796| r2796_2(unsigned long) = Constant[4] :
|
||||
# 2796| r2796_3(unsigned long) = Mul : r2796_2, r2795_6
|
||||
# 2796| r2796_4(unsigned long) = Mul : r2796_3, r2795_8
|
||||
# 2796| mu2796_5(unsigned long) = Store[v] : &:r2796_1, r2796_4
|
||||
# 2796| r2796_3(unsigned long) = CopyValue : r2795_6
|
||||
# 2796| r2796_4(unsigned long) = Mul : r2796_2, r2796_3
|
||||
# 2796| r2796_5(unsigned long) = Convert : r2795_8
|
||||
# 2796| r2796_6(unsigned long) = Mul : r2796_4, r2796_5
|
||||
# 2796| mu2796_7(unsigned long) = Store[v] : &:r2796_1, r2796_6
|
||||
# 2797| r2797_1(glval<unsigned long>) = VariableAddress[u] :
|
||||
# 2797| r2797_2(unsigned long) = Constant[4] :
|
||||
# 2797| r2797_3(unsigned long) = Mul : r2797_2, r2795_8
|
||||
# 2797| mu2797_4(unsigned long) = Store[u] : &:r2797_1, r2797_3
|
||||
# 2797| r2797_3(unsigned long) = Convert : r2795_8
|
||||
# 2797| r2797_4(unsigned long) = Mul : r2797_2, r2797_3
|
||||
# 2797| mu2797_5(unsigned long) = Store[u] : &:r2797_1, r2797_4
|
||||
# 2798| r2798_1(glval<unsigned long>) = VariableAddress[t] :
|
||||
# 2798| r2798_2(unsigned long) = Constant[4] :
|
||||
# 2798| mu2798_3(unsigned long) = Store[t] : &:r2798_1, r2798_2
|
||||
@@ -18733,9 +18747,11 @@ ir.cpp:
|
||||
# 2807| v2807_3(void) = NoOp :
|
||||
# 2808| r2808_1(glval<unsigned long>) = VariableAddress[#return] :
|
||||
# 2808| r2808_2(unsigned long) = Constant[8] :
|
||||
# 2808| r2808_3(unsigned long) = Mul : r2808_2, r2802_2
|
||||
# 2808| r2808_4(unsigned long) = Mul : r2808_3, r2802_4
|
||||
# 2808| mu2808_5(unsigned long) = Store[#return] : &:r2808_1, r2808_4
|
||||
# 2808| r2808_3(unsigned long) = Convert : r2802_2
|
||||
# 2808| r2808_4(unsigned long) = Mul : r2808_2, r2808_3
|
||||
# 2808| r2808_5(unsigned long) = CopyValue : r2802_4
|
||||
# 2808| r2808_6(unsigned long) = Mul : r2808_4, r2808_5
|
||||
# 2808| mu2808_7(unsigned long) = Store[#return] : &:r2808_1, r2808_6
|
||||
#-----| Goto -> Block 1
|
||||
|
||||
# 2811| Block 3
|
||||
|
||||
Reference in New Issue
Block a user