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MathiasVPMathiasVP
authored
Merge pull request #19976 from jketema/incr-2
C++: Output `CopyValue` in the IR when there is a non-transparent conversion
2 parents a004d9b + d6d7c6d commit 7bb3758

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-4
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7 files changed

+436
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‎cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/ExprNodes.qll

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -151,7 +151,7 @@ private module Cached {
151151
)
152152
or
153153
// Similarly for `i++` and `++i` we pretend that the generated
154-
// `StoreInstruction` is contains the result of the expression even though
154+
// `StoreInstruction` contains the result of the expression even though
155155
// this isn't totally aligned with the C/C++ standard.
156156
exists(TranslatedCrementOperation tco |
157157
store = tco.getInstruction(CrementStoreTag()) and

‎cpp/ql/lib/semmle/code/cpp/ir/implementation/raw/internal/TranslatedExpr.qll

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -4146,7 +4146,8 @@ predicate exprNeedsCopyIfNotLoaded(Expr expr) {
41464146
private predicate exprImmediatelyDiscarded(Expr expr) {
41474147
exists(ExprStmt s |
41484148
s = expr.getParent() and
4149-
not exists(StmtExpr se | s = se.getStmt().(BlockStmt).getLastStmt())
4149+
not exists(StmtExpr se | s = se.getStmt().(BlockStmt).getLastStmt()) and
4150+
not exists(expr.getConversion())
41504151
)
41514152
or
41524153
exists(CommaExpr c | c.getLeftOperand() = expr)

‎cpp/ql/test/library-tests/dataflow/asExpr/test.cpp

Lines changed: 10 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -42,8 +42,16 @@ void test_aggregate_literal() {
4242
void test_postfix_crement(int *p, int q) {
4343
p++; // $ asExpr="... ++" asIndirectExpr="... ++" asExpr=p asIndirectExpr=p
4444
q++; // $ asExpr="... ++" asExpr=q
45-
(void)(p++); // $ numberOfNodes="... ++: 2" asExpr="... ++" numberOfIndirectNodes="... ++: 2" asIndirectExpr="... ++" MISSING: asExpr=p asIndirectExpr=p
46-
(void)(q++); // $ numberOfNodes="... ++: 2" asExpr="... ++" MISSING: asExpr=q
45+
(p++); // $ asExpr="... ++" asIndirectExpr="... ++" asExpr="p(... ++)" asIndirectExpr="p(*... ++)"
46+
(q++); // $ asExpr="... ++" asExpr="q(... ++)"
47+
(void)(p++); // $ asExpr="p(... ++)" asIndirectExpr="p(*... ++)"
48+
(void)(q++); // $ asExpr="q(... ++)"
49+
(void)p++; // $ asExpr="p(... ++)" asIndirectExpr="p(*... ++)"
50+
(void)q++; // $ asExpr="q(... ++)"
4751
int *p1 = p++; // $ asExpr="... ++" asIndirectExpr="... ++" asExpr="p(... ++)" asIndirectExpr="p(*... ++)"
4852
int q1 = q++; // $ asExpr="... ++" asExpr="q(... ++)"
53+
(int*)(p++); // $ asExpr="... ++" asIndirectExpr="... ++" asExpr="p(... ++)" asIndirectExpr="p(*... ++)"
54+
(int)(q++); // $ asExpr="... ++" asExpr="q(... ++)"
55+
int *p2 = (int*)(p++); // $ asExpr="... ++" asIndirectExpr="... ++" asExpr="p(... ++)" asIndirectExpr="p(*... ++)"
56+
int q2 = (int)(q++); // $ asExpr="... ++" asExpr="q(... ++)"
4957
}

‎cpp/ql/test/library-tests/ir/ir/PrintAST.expected

Lines changed: 174 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -24262,6 +24262,180 @@ ir.cpp:
2426224262
# 2725| getExpr().getFullyConverted(): [ReferenceDereferenceExpr] (reference dereference)
2426324263
# 2725| Type = [PlainCharType] char
2426424264
# 2725| ValueCategory = prvalue(load)
24265+
# 2728| [TopLevelFunction] void test_postfix_crement(int*, int)
24266+
# 2728| <params>:
24267+
# 2728| getParameter(0): [Parameter] p
24268+
# 2728| Type = [IntPointerType] int *
24269+
# 2728| getParameter(1): [Parameter] q
24270+
# 2728| Type = [IntType] int
24271+
# 2728| getEntryPoint(): [BlockStmt] { ... }
24272+
# 2729| getStmt(0): [ExprStmt] ExprStmt
24273+
# 2729| getExpr(): [PostfixIncrExpr] ... ++
24274+
# 2729| Type = [IntPointerType] int *
24275+
# 2729| ValueCategory = prvalue
24276+
# 2729| getOperand(): [VariableAccess] p
24277+
# 2729| Type = [IntPointerType] int *
24278+
# 2729| ValueCategory = lvalue
24279+
# 2730| getStmt(1): [ExprStmt] ExprStmt
24280+
# 2730| getExpr(): [PostfixIncrExpr] ... ++
24281+
# 2730| Type = [IntType] int
24282+
# 2730| ValueCategory = prvalue
24283+
# 2730| getOperand(): [VariableAccess] q
24284+
# 2730| Type = [IntType] int
24285+
# 2730| ValueCategory = lvalue
24286+
# 2731| getStmt(2): [ExprStmt] ExprStmt
24287+
# 2731| getExpr(): [PostfixIncrExpr] ... ++
24288+
# 2731| Type = [IntPointerType] int *
24289+
# 2731| ValueCategory = prvalue
24290+
# 2731| getOperand(): [VariableAccess] p
24291+
# 2731| Type = [IntPointerType] int *
24292+
# 2731| ValueCategory = lvalue
24293+
# 2731| getExpr().getFullyConverted(): [ParenthesisExpr] (...)
24294+
# 2731| Type = [IntPointerType] int *
24295+
# 2731| ValueCategory = prvalue
24296+
# 2732| getStmt(3): [ExprStmt] ExprStmt
24297+
# 2732| getExpr(): [PostfixIncrExpr] ... ++
24298+
# 2732| Type = [IntType] int
24299+
# 2732| ValueCategory = prvalue
24300+
# 2732| getOperand(): [VariableAccess] q
24301+
# 2732| Type = [IntType] int
24302+
# 2732| ValueCategory = lvalue
24303+
# 2732| getExpr().getFullyConverted(): [ParenthesisExpr] (...)
24304+
# 2732| Type = [IntType] int
24305+
# 2732| ValueCategory = prvalue
24306+
# 2733| getStmt(4): [ExprStmt] ExprStmt
24307+
# 2733| getExpr(): [PostfixIncrExpr] ... ++
24308+
# 2733| Type = [IntPointerType] int *
24309+
# 2733| ValueCategory = prvalue
24310+
# 2733| getOperand(): [VariableAccess] p
24311+
# 2733| Type = [IntPointerType] int *
24312+
# 2733| ValueCategory = lvalue
24313+
# 2733| getExpr().getFullyConverted(): [CStyleCast] (void)...
24314+
# 2733| Conversion = [VoidConversion] conversion to void
24315+
# 2733| Type = [VoidType] void
24316+
# 2733| ValueCategory = prvalue
24317+
# 2733| getExpr(): [ParenthesisExpr] (...)
24318+
# 2733| Type = [IntPointerType] int *
24319+
# 2733| ValueCategory = prvalue
24320+
# 2734| getStmt(5): [ExprStmt] ExprStmt
24321+
# 2734| getExpr(): [PostfixIncrExpr] ... ++
24322+
# 2734| Type = [IntType] int
24323+
# 2734| ValueCategory = prvalue
24324+
# 2734| getOperand(): [VariableAccess] q
24325+
# 2734| Type = [IntType] int
24326+
# 2734| ValueCategory = lvalue
24327+
# 2734| getExpr().getFullyConverted(): [CStyleCast] (void)...
24328+
# 2734| Conversion = [VoidConversion] conversion to void
24329+
# 2734| Type = [VoidType] void
24330+
# 2734| ValueCategory = prvalue
24331+
# 2734| getExpr(): [ParenthesisExpr] (...)
24332+
# 2734| Type = [IntType] int
24333+
# 2734| ValueCategory = prvalue
24334+
# 2735| getStmt(6): [ExprStmt] ExprStmt
24335+
# 2735| getExpr(): [PostfixIncrExpr] ... ++
24336+
# 2735| Type = [IntPointerType] int *
24337+
# 2735| ValueCategory = prvalue
24338+
# 2735| getOperand(): [VariableAccess] p
24339+
# 2735| Type = [IntPointerType] int *
24340+
# 2735| ValueCategory = lvalue
24341+
# 2735| getExpr().getFullyConverted(): [CStyleCast] (void)...
24342+
# 2735| Conversion = [VoidConversion] conversion to void
24343+
# 2735| Type = [VoidType] void
24344+
# 2735| ValueCategory = prvalue
24345+
# 2736| getStmt(7): [ExprStmt] ExprStmt
24346+
# 2736| getExpr(): [PostfixIncrExpr] ... ++
24347+
# 2736| Type = [IntType] int
24348+
# 2736| ValueCategory = prvalue
24349+
# 2736| getOperand(): [VariableAccess] q
24350+
# 2736| Type = [IntType] int
24351+
# 2736| ValueCategory = lvalue
24352+
# 2736| getExpr().getFullyConverted(): [CStyleCast] (void)...
24353+
# 2736| Conversion = [VoidConversion] conversion to void
24354+
# 2736| Type = [VoidType] void
24355+
# 2736| ValueCategory = prvalue
24356+
# 2737| getStmt(8): [DeclStmt] declaration
24357+
# 2737| getDeclarationEntry(0): [VariableDeclarationEntry] definition of p1
24358+
# 2737| Type = [IntPointerType] int *
24359+
# 2737| getVariable().getInitializer(): [Initializer] initializer for p1
24360+
# 2737| getExpr(): [PostfixIncrExpr] ... ++
24361+
# 2737| Type = [IntPointerType] int *
24362+
# 2737| ValueCategory = prvalue
24363+
# 2737| getOperand(): [VariableAccess] p
24364+
# 2737| Type = [IntPointerType] int *
24365+
# 2737| ValueCategory = lvalue
24366+
# 2738| getStmt(9): [DeclStmt] declaration
24367+
# 2738| getDeclarationEntry(0): [VariableDeclarationEntry] definition of q1
24368+
# 2738| Type = [IntType] int
24369+
# 2738| getVariable().getInitializer(): [Initializer] initializer for q1
24370+
# 2738| getExpr(): [PostfixIncrExpr] ... ++
24371+
# 2738| Type = [IntType] int
24372+
# 2738| ValueCategory = prvalue
24373+
# 2738| getOperand(): [VariableAccess] q
24374+
# 2738| Type = [IntType] int
24375+
# 2738| ValueCategory = lvalue
24376+
# 2739| getStmt(10): [ExprStmt] ExprStmt
24377+
# 2739| getExpr(): [PostfixIncrExpr] ... ++
24378+
# 2739| Type = [IntPointerType] int *
24379+
# 2739| ValueCategory = prvalue
24380+
# 2739| getOperand(): [VariableAccess] p
24381+
# 2739| Type = [IntPointerType] int *
24382+
# 2739| ValueCategory = lvalue
24383+
# 2739| getExpr().getFullyConverted(): [CStyleCast] (int *)...
24384+
# 2739| Conversion = [PointerConversion] pointer conversion
24385+
# 2739| Type = [IntPointerType] int *
24386+
# 2739| ValueCategory = prvalue
24387+
# 2739| getExpr(): [ParenthesisExpr] (...)
24388+
# 2739| Type = [IntPointerType] int *
24389+
# 2739| ValueCategory = prvalue
24390+
# 2740| getStmt(11): [ExprStmt] ExprStmt
24391+
# 2740| getExpr(): [PostfixIncrExpr] ... ++
24392+
# 2740| Type = [IntType] int
24393+
# 2740| ValueCategory = prvalue
24394+
# 2740| getOperand(): [VariableAccess] q
24395+
# 2740| Type = [IntType] int
24396+
# 2740| ValueCategory = lvalue
24397+
# 2740| getExpr().getFullyConverted(): [CStyleCast] (int)...
24398+
# 2740| Conversion = [IntegralConversion] integral conversion
24399+
# 2740| Type = [IntType] int
24400+
# 2740| ValueCategory = prvalue
24401+
# 2740| getExpr(): [ParenthesisExpr] (...)
24402+
# 2740| Type = [IntType] int
24403+
# 2740| ValueCategory = prvalue
24404+
# 2741| getStmt(12): [DeclStmt] declaration
24405+
# 2741| getDeclarationEntry(0): [VariableDeclarationEntry] definition of p2
24406+
# 2741| Type = [IntPointerType] int *
24407+
# 2741| getVariable().getInitializer(): [Initializer] initializer for p2
24408+
# 2741| getExpr(): [PostfixIncrExpr] ... ++
24409+
# 2741| Type = [IntPointerType] int *
24410+
# 2741| ValueCategory = prvalue
24411+
# 2741| getOperand(): [VariableAccess] p
24412+
# 2741| Type = [IntPointerType] int *
24413+
# 2741| ValueCategory = lvalue
24414+
# 2741| getExpr().getFullyConverted(): [CStyleCast] (int *)...
24415+
# 2741| Conversion = [PointerConversion] pointer conversion
24416+
# 2741| Type = [IntPointerType] int *
24417+
# 2741| ValueCategory = prvalue
24418+
# 2741| getExpr(): [ParenthesisExpr] (...)
24419+
# 2741| Type = [IntPointerType] int *
24420+
# 2741| ValueCategory = prvalue
24421+
# 2742| getStmt(13): [DeclStmt] declaration
24422+
# 2742| getDeclarationEntry(0): [VariableDeclarationEntry] definition of q2
24423+
# 2742| Type = [IntType] int
24424+
# 2742| getVariable().getInitializer(): [Initializer] initializer for q2
24425+
# 2742| getExpr(): [PostfixIncrExpr] ... ++
24426+
# 2742| Type = [IntType] int
24427+
# 2742| ValueCategory = prvalue
24428+
# 2742| getOperand(): [VariableAccess] q
24429+
# 2742| Type = [IntType] int
24430+
# 2742| ValueCategory = lvalue
24431+
# 2742| getExpr().getFullyConverted(): [CStyleCast] (int)...
24432+
# 2742| Conversion = [IntegralConversion] integral conversion
24433+
# 2742| Type = [IntType] int
24434+
# 2742| ValueCategory = prvalue
24435+
# 2742| getExpr(): [ParenthesisExpr] (...)
24436+
# 2742| Type = [IntType] int
24437+
# 2742| ValueCategory = prvalue
24438+
# 2743| getStmt(14): [ReturnStmt] return ...
2426524439
ir23.cpp:
2426624440
# 1| [TopLevelFunction] bool consteval_1()
2426724441
# 1| <params>:

‎cpp/ql/test/library-tests/ir/ir/aliased_ir.expected

Lines changed: 117 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -20156,6 +20156,123 @@ ir.cpp:
2015620156
# 2724| v2724_12(void) = AliasedUse : ~m2725_8
2015720157
# 2724| v2724_13(void) = ExitFunction :
2015820158

20159+
# 2728| void test_postfix_crement(int*, int)
20160+
# 2728| Block 0
20161+
# 2728| v2728_1(void) = EnterFunction :
20162+
# 2728| m2728_2(unknown) = AliasedDefinition :
20163+
# 2728| m2728_3(unknown) = InitializeNonLocal :
20164+
# 2728| m2728_4(unknown) = Chi : total:m2728_2, partial:m2728_3
20165+
# 2728| r2728_5(glval<int *>) = VariableAddress[p] :
20166+
# 2728| m2728_6(int *) = InitializeParameter[p] : &:r2728_5
20167+
# 2728| r2728_7(int *) = Load[p] : &:r2728_5, m2728_6
20168+
# 2728| m2728_8(unknown) = InitializeIndirection[p] : &:r2728_7
20169+
# 2728| m2728_9(unknown) = Chi : total:m2728_4, partial:m2728_8
20170+
# 2728| r2728_10(glval<int>) = VariableAddress[q] :
20171+
# 2728| m2728_11(int) = InitializeParameter[q] : &:r2728_10
20172+
# 2729| r2729_1(glval<int *>) = VariableAddress[p] :
20173+
# 2729| r2729_2(int *) = Load[p] : &:r2729_1, m2728_6
20174+
# 2729| r2729_3(int) = Constant[1] :
20175+
# 2729| r2729_4(int *) = PointerAdd[4] : r2729_2, r2729_3
20176+
# 2729| m2729_5(int *) = Store[p] : &:r2729_1, r2729_4
20177+
# 2730| r2730_1(glval<int>) = VariableAddress[q] :
20178+
# 2730| r2730_2(int) = Load[q] : &:r2730_1, m2728_11
20179+
# 2730| r2730_3(int) = Constant[1] :
20180+
# 2730| r2730_4(int) = Add : r2730_2, r2730_3
20181+
# 2730| m2730_5(int) = Store[q] : &:r2730_1, r2730_4
20182+
# 2731| r2731_1(glval<int *>) = VariableAddress[p] :
20183+
# 2731| r2731_2(int *) = Load[p] : &:r2731_1, m2729_5
20184+
# 2731| r2731_3(int) = Constant[1] :
20185+
# 2731| r2731_4(int *) = PointerAdd[4] : r2731_2, r2731_3
20186+
# 2731| m2731_5(int *) = Store[p] : &:r2731_1, r2731_4
20187+
# 2731| r2731_6(int *) = CopyValue : r2731_2
20188+
# 2732| r2732_1(glval<int>) = VariableAddress[q] :
20189+
# 2732| r2732_2(int) = Load[q] : &:r2732_1, m2730_5
20190+
# 2732| r2732_3(int) = Constant[1] :
20191+
# 2732| r2732_4(int) = Add : r2732_2, r2732_3
20192+
# 2732| m2732_5(int) = Store[q] : &:r2732_1, r2732_4
20193+
# 2732| r2732_6(int) = CopyValue : r2732_2
20194+
# 2733| r2733_1(glval<int *>) = VariableAddress[p] :
20195+
# 2733| r2733_2(int *) = Load[p] : &:r2733_1, m2731_5
20196+
# 2733| r2733_3(int) = Constant[1] :
20197+
# 2733| r2733_4(int *) = PointerAdd[4] : r2733_2, r2733_3
20198+
# 2733| m2733_5(int *) = Store[p] : &:r2733_1, r2733_4
20199+
# 2733| r2733_6(int *) = CopyValue : r2733_2
20200+
# 2733| v2733_7(void) = Convert : r2733_6
20201+
# 2734| r2734_1(glval<int>) = VariableAddress[q] :
20202+
# 2734| r2734_2(int) = Load[q] : &:r2734_1, m2732_5
20203+
# 2734| r2734_3(int) = Constant[1] :
20204+
# 2734| r2734_4(int) = Add : r2734_2, r2734_3
20205+
# 2734| m2734_5(int) = Store[q] : &:r2734_1, r2734_4
20206+
# 2734| r2734_6(int) = CopyValue : r2734_2
20207+
# 2734| v2734_7(void) = Convert : r2734_6
20208+
# 2735| r2735_1(glval<int *>) = VariableAddress[p] :
20209+
# 2735| r2735_2(int *) = Load[p] : &:r2735_1, m2733_5
20210+
# 2735| r2735_3(int) = Constant[1] :
20211+
# 2735| r2735_4(int *) = PointerAdd[4] : r2735_2, r2735_3
20212+
# 2735| m2735_5(int *) = Store[p] : &:r2735_1, r2735_4
20213+
# 2735| r2735_6(int *) = CopyValue : r2735_2
20214+
# 2735| v2735_7(void) = Convert : r2735_6
20215+
# 2736| r2736_1(glval<int>) = VariableAddress[q] :
20216+
# 2736| r2736_2(int) = Load[q] : &:r2736_1, m2734_5
20217+
# 2736| r2736_3(int) = Constant[1] :
20218+
# 2736| r2736_4(int) = Add : r2736_2, r2736_3
20219+
# 2736| m2736_5(int) = Store[q] : &:r2736_1, r2736_4
20220+
# 2736| r2736_6(int) = CopyValue : r2736_2
20221+
# 2736| v2736_7(void) = Convert : r2736_6
20222+
# 2737| r2737_1(glval<int *>) = VariableAddress[p1] :
20223+
# 2737| r2737_2(glval<int *>) = VariableAddress[p] :
20224+
# 2737| r2737_3(int *) = Load[p] : &:r2737_2, m2735_5
20225+
# 2737| r2737_4(int) = Constant[1] :
20226+
# 2737| r2737_5(int *) = PointerAdd[4] : r2737_3, r2737_4
20227+
# 2737| m2737_6(int *) = Store[p] : &:r2737_2, r2737_5
20228+
# 2737| r2737_7(int *) = CopyValue : r2737_3
20229+
# 2737| m2737_8(int *) = Store[p1] : &:r2737_1, r2737_7
20230+
# 2738| r2738_1(glval<int>) = VariableAddress[q1] :
20231+
# 2738| r2738_2(glval<int>) = VariableAddress[q] :
20232+
# 2738| r2738_3(int) = Load[q] : &:r2738_2, m2736_5
20233+
# 2738| r2738_4(int) = Constant[1] :
20234+
# 2738| r2738_5(int) = Add : r2738_3, r2738_4
20235+
# 2738| m2738_6(int) = Store[q] : &:r2738_2, r2738_5
20236+
# 2738| r2738_7(int) = CopyValue : r2738_3
20237+
# 2738| m2738_8(int) = Store[q1] : &:r2738_1, r2738_7
20238+
# 2739| r2739_1(glval<int *>) = VariableAddress[p] :
20239+
# 2739| r2739_2(int *) = Load[p] : &:r2739_1, m2737_6
20240+
# 2739| r2739_3(int) = Constant[1] :
20241+
# 2739| r2739_4(int *) = PointerAdd[4] : r2739_2, r2739_3
20242+
# 2739| m2739_5(int *) = Store[p] : &:r2739_1, r2739_4
20243+
# 2739| r2739_6(int *) = CopyValue : r2739_2
20244+
# 2739| r2739_7(int *) = Convert : r2739_6
20245+
# 2740| r2740_1(glval<int>) = VariableAddress[q] :
20246+
# 2740| r2740_2(int) = Load[q] : &:r2740_1, m2738_6
20247+
# 2740| r2740_3(int) = Constant[1] :
20248+
# 2740| r2740_4(int) = Add : r2740_2, r2740_3
20249+
# 2740| m2740_5(int) = Store[q] : &:r2740_1, r2740_4
20250+
# 2740| r2740_6(int) = CopyValue : r2740_2
20251+
# 2740| r2740_7(int) = Convert : r2740_6
20252+
# 2741| r2741_1(glval<int *>) = VariableAddress[p2] :
20253+
# 2741| r2741_2(glval<int *>) = VariableAddress[p] :
20254+
# 2741| r2741_3(int *) = Load[p] : &:r2741_2, m2739_5
20255+
# 2741| r2741_4(int) = Constant[1] :
20256+
# 2741| r2741_5(int *) = PointerAdd[4] : r2741_3, r2741_4
20257+
# 2741| m2741_6(int *) = Store[p] : &:r2741_2, r2741_5
20258+
# 2741| r2741_7(int *) = CopyValue : r2741_3
20259+
# 2741| r2741_8(int *) = Convert : r2741_7
20260+
# 2741| m2741_9(int *) = Store[p2] : &:r2741_1, r2741_8
20261+
# 2742| r2742_1(glval<int>) = VariableAddress[q2] :
20262+
# 2742| r2742_2(glval<int>) = VariableAddress[q] :
20263+
# 2742| r2742_3(int) = Load[q] : &:r2742_2, m2740_5
20264+
# 2742| r2742_4(int) = Constant[1] :
20265+
# 2742| r2742_5(int) = Add : r2742_3, r2742_4
20266+
# 2742| m2742_6(int) = Store[q] : &:r2742_2, r2742_5
20267+
# 2742| r2742_7(int) = CopyValue : r2742_3
20268+
# 2742| r2742_8(int) = Convert : r2742_7
20269+
# 2742| m2742_9(int) = Store[q2] : &:r2742_1, r2742_8
20270+
# 2743| v2743_1(void) = NoOp :
20271+
# 2728| v2728_12(void) = ReturnIndirection[p] : &:r2728_7, m2728_8
20272+
# 2728| v2728_13(void) = ReturnVoid :
20273+
# 2728| v2728_14(void) = AliasedUse : ~m2728_9
20274+
# 2728| v2728_15(void) = ExitFunction :
20275+
2015920276
ir23.cpp:
2016020277
# 1| bool consteval_1()
2016120278
# 1| Block 0

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