[llvm] r362166 - Add enums as global variables in the IR metadata.
Amy Huang via llvm-commits
llvm-commits at lists.llvm.org
Thu May 30 15:04:11 PDT 2019
Author: akhuang
Date: Thu May 30 15:04:11 2019
New Revision: 362166
URL: http://llvm.org/viewvc/llvm-project?rev=362166&view=rev
Log:
Add enums as global variables in the IR metadata.
Summary:
Keeps track of the enums that were used by saving them as DIGlobalVariables,
since CodeView emits debug info for global constants.
Reviewers: rnk
Subscribers: aprantl, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D62635
Modified:
llvm/trunk/test/DebugInfo/COFF/global-constants.ll
Modified: llvm/trunk/test/DebugInfo/COFF/global-constants.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/COFF/global-constants.ll?rev=362166&r1=362165&r2=362166&view=diff
==============================================================================
--- llvm/trunk/test/DebugInfo/COFF/global-constants.ll (original)
+++ llvm/trunk/test/DebugInfo/COFF/global-constants.ll Thu May 30 15:04:11 2019
@@ -2,26 +2,41 @@
; RUN: llc < %s -filetype=obj | llvm-readobj - --codeview | FileCheck %s --check-prefix=OBJ
; C++ source to regenerate:
-; const int Test1 = 1;
-; struct Foo { static const int Test2 = 2; };
-; int main() {
-; return Test1 + Foo::Test2;
+; const float TestConst1 = 3.14;
+; struct S {
+; static const int TestConst2 = -10;
+; }
+; enum TestEnum : int {
+; ENUM_A = 2147000000,
+; ENUM_B = -2147000000,
+; };
+; void useConst(int);
+; void foo() {
+; useConst(TestConst1);
+; useConst(S::TestConst2);
+; useConst(ENUM_B);
; }
; $ clang t.cpp -S -emit-llvm -g -gcodeview -o t.ll
-; ASM-LABEL: .long 241 # Symbol subsection for globals
-
-; ASM: .short {{.*-.*}} # Record length
-; ASM: .short 4359 # Record kind: S_CONSTANT
-; ASM-NEXT: .long 4099 # Type
-; ASM-NEXT: .byte 0x01, 0x00 # Value
-; ASM-NEXT: .asciz "Test1" # Name
-
-; ASM: .short {{.*-.*}} # Record length
-; ASM: .short 4359 # Record kind: S_CONSTANT
-; ASM: .long 4099 # Type
-; ASM: .byte 0x02, 0x00 # Value
-; ASM: .asciz "Foo::Test2" # Name
+; ASM-LABEL: .long 241 # Symbol subsection for globals
+; ASM: .short {{.*-.*}} # Record length
+; ASM: .short 4359 # Record kind: S_CONSTANT
+; ASM-NEXT: .long 4099 # Type
+; ASM-NEXT: .byte 0x04, 0x80, 0xc3, 0xf5 # Value
+; ASM-NEXT: .byte 0x48, 0x40
+; ASM-NEXT: .asciz "TestConst1" # Name
+; ASM: .short {{.*-.*}} # Record length
+; ASM: .short 4359 # Record kind: S_CONSTANT
+; ASM-NEXT: .long 4100 # Type
+; ASM-NEXT: .byte 0x61, 0x00 # Value
+; ASM-NEXT: .asciz "S::TestConst2" # Name
+; ASM: .short {{.*-.*}} # Record length
+; ASM: .short 4359 # Record kind: S_CONSTANT
+; ASM-NEXT: .long 4102 # Type
+; ASM-NEXT: .byte 0x0a, 0x80, 0x40, 0x61 # Value
+; ASM-NEXT: .byte 0x07, 0x80, 0xff, 0xff
+; ASM-NEXT: .byte 0xff, 0xff
+; ASM-NEXT: .asciz "ENUM_B" # Name
; OBJ: CodeViewDebugInfo [
; OBJ: Section: .debug$S
@@ -30,56 +45,77 @@
; OBJ: SubSectionType: Symbols (0xF1)
; OBJ: ConstantSym {
; OBJ-NEXT: Kind: S_CONSTANT (0x1107)
-; OBJ-NEXT: Type: const int (0x1003)
-; OBJ-NEXT: Value: 1
-; OBJ-NEXT: Name: Test1
+; OBJ-NEXT: Type: const float (0x1003)
+; OBJ-NEXT: Value: 1078523331
+; OBJ-NEXT: Name: TestConst1
; OBJ-NEXT: }
-; OBJ: ConstantSym {
+; OBJ-NEXT: ConstantSym {
; OBJ-NEXT: Kind: S_CONSTANT (0x1107)
-; OBJ-NEXT: Type: const int (0x1003)
-; OBJ-NEXT: Value: 2
-; OBJ-NEXT: Name: Foo::Test2
+; OBJ-NEXT: Type: const char (0x1004)
+; OBJ-NEXT: Value: 97
+; OBJ-NEXT: Name: S::TestConst2
; OBJ-NEXT: }
+; OBJ-NEXT: ConstantSym {
+; OBJ-NEXT: Kind: S_CONSTANT (0x1107)
+; OBJ-NEXT: Type: TestEnum (0x1006)
+; OBJ-NEXT: Value: 18446744071562551616
+; OBJ-NEXT: Name: ENUM_B
+; OBJ-NEXT: }
+
; ModuleID = 't.cpp'
source_filename = "t.cpp"
target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
-target triple = "x86_64-pc-windows-msvc"
+target triple = "x86_64-w64-windows-gnu"
-; Function Attrs: noinline norecurse nounwind optnone
-define dso_local i32 @main() #0 !dbg !19 {
+; Function Attrs: noinline nounwind optnone
+define dso_local void @_Z3foov() #0 !dbg !28 {
entry:
- %retval = alloca i32, align 4
- store i32 0, i32* %retval, align 4
- ret i32 3, !dbg !22
+ call void @_Z8useConsti(i32 3), !dbg !32
+ call void @_Z8useConsti(i32 97), !dbg !33
+ call void @_Z8useConsti(i32 -2147000000), !dbg !34
+ ret void, !dbg !35
}
-attributes #0 = { noinline norecurse nounwind optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
+declare dso_local void @_Z8useConsti(i32) #1
!llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!15, !16, !17}
-!llvm.ident = !{!18}
+!llvm.module.flags = !{!24, !25, !26}
+!llvm.ident = !{!27}
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 9.0.0 (https://github.com/llvm/llvm-project.git 2b66a49044196d8b90d95d7d3b5246ccbe3abc05)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, globals: !10, nameTableKind: None)
-!1 = !DIFile(filename: "<stdin>", directory: "C:\5Csrc\5Ctest", checksumkind: CSK_MD5, checksum: "77cff5e1c7b260440ed03b23c18809c3")
-!2 = !{}
-!3 = !{!4}
-!4 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", file: !5, line: 3, size: 8, flags: DIFlagTypePassByValue, elements: !6, identifier: ".?AUFoo@@")
-!5 = !DIFile(filename: "t.cpp", directory: "C:\5Csrc\5Ctest", checksumkind: CSK_MD5, checksum: "77cff5e1c7b260440ed03b23c18809c3")
-!6 = !{!7}
-!7 = !DIDerivedType(tag: DW_TAG_member, name: "Test2", scope: !4, file: !5, line: 4, baseType: !8, flags: DIFlagStaticMember, extraData: i32 2)
-!8 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !9)
-!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
-!10 = !{!11, !13}
-!11 = !DIGlobalVariableExpression(var: !12, expr: !DIExpression(DW_OP_constu, 1, DW_OP_stack_value))
-!12 = distinct !DIGlobalVariable(name: "Test1", scope: null, file: !5, line: 1, type: !8, isLocal: true, isDefinition: true)
-!13 = !DIGlobalVariableExpression(var: !14, expr: !DIExpression(DW_OP_constu, 2, DW_OP_stack_value))
-!14 = distinct !DIGlobalVariable(name: "Test2", scope: !0, file: !5, line: 4, type: !8, isLocal: true, isDefinition: true, declaration: !7)
-!15 = !{i32 2, !"CodeView", i32 1}
-!16 = !{i32 2, !"Debug Info Version", i32 3}
-!17 = !{i32 1, !"wchar_size", i32 2}
-!18 = !{!"clang version 9.0.0 (https://github.com/llvm/llvm-project.git 2b66a49044196d8b90d95d7d3b5246ccbe3abc05)"}
-!19 = distinct !DISubprogram(name: "main", scope: !5, file: !5, line: 7, type: !20, scopeLine: 7, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
-!20 = !DISubroutineType(types: !21)
-!21 = !{!9}
-!22 = !DILocation(line: 8, scope: !19)
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 9.0.0 (https://github.com/llvm/llvm-project.git dee1891507401f396290b5d9cb5717d6b0755337)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !9, globals: !15, nameTableKind: None)
+!1 = !DIFile(filename: "<stdin>", directory: "C:\5Csrc\5Ctest", checksumkind: CSK_MD5, checksum: "6d700c7d582557a012214ac1f1f8721b")
+!2 = !{!3}
+!3 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "TestEnum", file: !4, line: 5, baseType: !5, size: 32, elements: !6, identifier: "_ZTS8TestEnum")
+!4 = !DIFile(filename: "t.cpp", directory: "C:\5Csrc\5Ctest", checksumkind: CSK_MD5, checksum: "6d700c7d582557a012214ac1f1f8721b")
+!5 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!6 = !{!7, !8}
+!7 = !DIEnumerator(name: "ENUM_A", value: 2147000000)
+!8 = !DIEnumerator(name: "ENUM_B", value: -2147000000)
+!9 = !{!10}
+!10 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !4, line: 2, size: 8, flags: DIFlagTypePassByValue, elements: !11, identifier: "_ZTS1S")
+!11 = !{!12}
+!12 = !DIDerivedType(tag: DW_TAG_member, name: "TestConst2", scope: !10, file: !4, line: 3, baseType: !13, flags: DIFlagStaticMember, extraData: i8 97)
+!13 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !14)
+!14 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
+!15 = !{!16, !20, !22}
+!16 = !DIGlobalVariableExpression(var: !17, expr: !DIExpression(DW_OP_constu, 1078523331, DW_OP_stack_value))
+!17 = distinct !DIGlobalVariable(name: "TestConst1", scope: !0, file: !4, line: 1, type: !18, isLocal: true, isDefinition: true)
+!18 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !19)
+!19 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
+!20 = !DIGlobalVariableExpression(var: !21, expr: !DIExpression(DW_OP_constu, 97, DW_OP_stack_value))
+!21 = distinct !DIGlobalVariable(name: "TestConst2", scope: !0, file: !4, line: 3, type: !13, isLocal: true, isDefinition: true, declaration: !12)
+!22 = !DIGlobalVariableExpression(var: !23, expr: !DIExpression(DW_OP_constu, 18446744071562551616, DW_OP_stack_value))
+!23 = distinct !DIGlobalVariable(name: "ENUM_B", scope: !0, file: !4, line: 7, type: !3, isLocal: true, isDefinition: true)
+!24 = !{i32 2, !"CodeView", i32 1}
+!25 = !{i32 2, !"Debug Info Version", i32 3}
+!26 = !{i32 1, !"wchar_size", i32 2}
+!27 = !{!"clang version 9.0.0 (https://github.com/llvm/llvm-project.git dee1891507401f396290b5d9cb5717d6b0755337)"}
+!28 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !4, file: !4, line: 10, type: !29, scopeLine: 10, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !31)
+!29 = !DISubroutineType(types: !30)
+!30 = !{null}
+!31 = !{}
+!32 = !DILocation(line: 11, scope: !28)
+!33 = !DILocation(line: 12, scope: !28)
+!34 = !DILocation(line: 13, scope: !28)
+!35 = !DILocation(line: 14, scope: !28)
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