diff options
Diffstat (limited to 'llvm/test/DebugInfo/Generic/incorrect-variable-debugloc1.ll')
| -rw-r--r-- | llvm/test/DebugInfo/Generic/incorrect-variable-debugloc1.ll | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/llvm/test/DebugInfo/Generic/incorrect-variable-debugloc1.ll b/llvm/test/DebugInfo/Generic/incorrect-variable-debugloc1.ll new file mode 100644 index 00000000000..7d40e404ce1 --- /dev/null +++ b/llvm/test/DebugInfo/Generic/incorrect-variable-debugloc1.ll @@ -0,0 +1,77 @@ +; REQUIRES: object-emission +; This test is failing for powerpc64, because a location list for the +; variable 'c' is not generated at all. Temporary marking this test as XFAIL +; for powerpc, until PR21881 is fixed. +; XFAIL: powerpc64 + +; RUN: %llc_dwarf -O2 -dwarf-version 2 -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF23 +; RUN: %llc_dwarf -O2 -dwarf-version 3 -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF23 +; RUN: %llc_dwarf -O2 -dwarf-version 4 -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF4 + +; This is a test for PR21176. +; DW_OP_const <const> doesn't describe a constant value, but a value at a constant address. +; The proper way to describe a constant value is DW_OP_constu <const>, DW_OP_stack_value. + +; Generated with clang -S -emit-llvm -g -O2 test.cpp + +; extern int func(); +; +; int main() +; { +; volatile int c = 13; +; c = func(); +; return c; +; } + +; DWARF23: Location description: 10 0d {{$}} +; DWARF4: Location description: 10 0d 9f + +; Function Attrs: uwtable +define i32 @main() #0 { +entry: + %c = alloca i32, align 4 + tail call void @llvm.dbg.value(metadata i32 13, i64 0, metadata !10, metadata !16), !dbg !17 + store volatile i32 13, i32* %c, align 4, !dbg !18 + %call = tail call i32 @_Z4funcv(), !dbg !19 + tail call void @llvm.dbg.value(metadata i32 %call, i64 0, metadata !10, metadata !16), !dbg !17 + store volatile i32 %call, i32* %c, align 4, !dbg !19 + tail call void @llvm.dbg.value(metadata i32* %c, i64 0, metadata !10, metadata !16), !dbg !17 + %c.0.c.0. = load volatile i32, i32* %c, align 4, !dbg !20 + ret i32 %c.0.c.0., !dbg !20 +} + +declare i32 @_Z4funcv() #1 + +; Function Attrs: nounwind readnone +declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2 + +attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #2 = { nounwind readnone } + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!12, !13} +!llvm.ident = !{!14} + +!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 (trunk 223522)", isOptimized: true, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2) +!1 = !DIFile(filename: "test.cpp", directory: "/home/kromanova/ngh/ToT_latest/llvm/test/DebugInfo") +!2 = !{} +!3 = !{!4} +!4 = distinct !DISubprogram(name: "main", line: 3, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 4, file: !1, scope: !5, type: !6, function: i32 ()* @main, variables: !9) +!5 = !DIFile(filename: "test.cpp", directory: "/home/kromanova/ngh/ToT_latest/llvm/test/DebugInfo") +!6 = !DISubroutineType(types: !7) +!7 = !{!8} +!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) +!9 = !{!10} +!10 = !DILocalVariable(name: "c", line: 5, scope: !4, file: !5, type: !11) +!11 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !8) +!12 = !{i32 2, !"Dwarf Version", i32 2} +!13 = !{i32 2, !"Debug Info Version", i32 3} +!14 = !{!"clang version 3.6.0 (trunk 223522)"} +!15 = !{i32 13} +!16 = !DIExpression() +!17 = !DILocation(line: 5, column: 16, scope: !4) +!18 = !DILocation(line: 5, column: 3, scope: !4) +!19 = !DILocation(line: 6, column: 7, scope: !4) +!20 = !DILocation(line: 7, column: 3, scope: !4) + |
