forked from OSchip/llvm-project
126 lines
5.6 KiB
LLVM
126 lines
5.6 KiB
LLVM
; RUN: llc -march=mips -mcpu=mips32r2 -O0 -filetype=obj <%s | \
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; RUN: llvm-dwarfdump -debug-dump=all - | FileCheck %s -check-prefix=F2
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; RUN: llc -march=mips -mcpu=mips32r2 -O0 -filetype=obj <%s | \
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; RUN: llvm-dwarfdump -debug-dump=all - | FileCheck %s -check-prefix=F3
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare void @foo(i32*)
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; void foo(int *);
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;
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; int f2(int a, int b) {
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; int c __attribute__((aligned(16))) = a + b;
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; foo(&c);
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; return c;
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; }
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;
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; int *f3(int a, int b) {
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; int c __attribute__((aligned(16))) = a + b;
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; int *w = alloca(c);
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; foo(&c);
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; return w;
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; }
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; c -> DW_OP_breg29(r29): 16
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; F2: DW_AT_location [DW_FORM_exprloc] (<0x2> 8d 10 )
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; F2: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000065] = "c")
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; Function Attrs: nounwind
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define i32 @f2(i32 signext %a, i32 signext %b) !dbg !4 {
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entry:
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%a.addr = alloca i32, align 4
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%b.addr = alloca i32, align 4
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%c = alloca i32, align 16
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store i32 %a, i32* %a.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !15, metadata !16), !dbg !17
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store i32 %b, i32* %b.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %b.addr, metadata !18, metadata !16), !dbg !19
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call void @llvm.dbg.declare(metadata i32* %c, metadata !20, metadata !16), !dbg !21
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%0 = load i32, i32* %a.addr, align 4, !dbg !22
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%1 = load i32, i32* %b.addr, align 4, !dbg !23
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%add = add nsw i32 %0, %1, !dbg !24
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store i32 %add, i32* %c, align 16, !dbg !21
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call void @foo(i32* %c), !dbg !25
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%2 = load i32, i32* %c, align 16, !dbg !26
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ret i32 %2, !dbg !27
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}
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; c -> DW_OP_breg23(r23): 16
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; F3: DW_AT_location [DW_FORM_exprloc] (<0x2> 87 10 )
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; F3: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000065] = "c")
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define i32* @f3(i32 signext %a, i32 signext %b) !dbg !8 {
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entry:
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%a.addr = alloca i32, align 4
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%b.addr = alloca i32, align 4
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%c = alloca i32, align 16
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%w = alloca i32*, align 4
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store i32 %a, i32* %a.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !28, metadata !16), !dbg !29
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store i32 %b, i32* %b.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %b.addr, metadata !30, metadata !16), !dbg !31
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call void @llvm.dbg.declare(metadata i32* %c, metadata !32, metadata !16), !dbg !33
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%0 = load i32, i32* %a.addr, align 4, !dbg !34
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%1 = load i32, i32* %b.addr, align 4, !dbg !35
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%add = add nsw i32 %0, %1, !dbg !36
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store i32 %add, i32* %c, align 16, !dbg !33
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call void @llvm.dbg.declare(metadata i32** %w, metadata !37, metadata !DIExpression(DW_OP_deref)), !dbg !38
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%2 = load i32, i32* %c, align 16, !dbg !39
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%3 = alloca i8, i32 %2, !dbg !40
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%4 = bitcast i8* %3 to i32*, !dbg !40
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store i32* %4, i32** %w, align 4, !dbg !38
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call void @foo(i32* %c), !dbg !41
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%5 = load i32*, i32** %w, align 4, !dbg !42
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ret i32* %5, !dbg !43
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!12, !13}
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!llvm.ident = !{!14}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 251783) (llvm/trunk 251781)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, subprograms: !3)
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!1 = !DIFile(filename: "test.c", directory: "/home/vk/repos/tmp/dwarf")
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!2 = !{}
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!3 = !{!4, !8}
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!4 = distinct !DISubprogram(name: "f2", scope: !1, file: !1, line: 20, type: !5, isLocal: false, isDefinition: true, scopeLine: 20, flags: DIFlagPrototyped, isOptimized: false, variables: !2)
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7, !7, !7}
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!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = distinct !DISubprogram(name: "f3", scope: !1, file: !1, line: 27, type: !9, isLocal: false, isDefinition: true, scopeLine: 27, flags: DIFlagPrototyped, isOptimized: false, variables: !2)
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!9 = !DISubroutineType(types: !10)
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!10 = !{!11, !7, !7}
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!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 32, align: 32)
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!12 = !{i32 2, !"Dwarf Version", i32 4}
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!13 = !{i32 2, !"Debug Info Version", i32 3}
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!14 = !{!"clang version 3.8.0 (trunk 251783) (llvm/trunk 251781)"}
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!15 = !DILocalVariable(name: "a", arg: 1, scope: !4, file: !1, line: 20, type: !7)
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!16 = !DIExpression()
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!17 = !DILocation(line: 20, column: 12, scope: !4)
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!18 = !DILocalVariable(name: "b", arg: 2, scope: !4, file: !1, line: 20, type: !7)
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!19 = !DILocation(line: 20, column: 19, scope: !4)
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!20 = !DILocalVariable(name: "c", scope: !4, file: !1, line: 21, type: !7)
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!21 = !DILocation(line: 21, column: 7, scope: !4)
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!22 = !DILocation(line: 21, column: 40, scope: !4)
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!23 = !DILocation(line: 21, column: 44, scope: !4)
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!24 = !DILocation(line: 21, column: 42, scope: !4)
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!25 = !DILocation(line: 22, column: 3, scope: !4)
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!26 = !DILocation(line: 23, column: 10, scope: !4)
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!27 = !DILocation(line: 23, column: 3, scope: !4)
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!28 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 27, type: !7)
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!29 = !DILocation(line: 27, column: 13, scope: !8)
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!30 = !DILocalVariable(name: "b", arg: 2, scope: !8, file: !1, line: 27, type: !7)
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!31 = !DILocation(line: 27, column: 20, scope: !8)
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!32 = !DILocalVariable(name: "c", scope: !8, file: !1, line: 28, type: !7)
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!33 = !DILocation(line: 28, column: 7, scope: !8)
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!34 = !DILocation(line: 28, column: 40, scope: !8)
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!35 = !DILocation(line: 28, column: 44, scope: !8)
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!36 = !DILocation(line: 28, column: 42, scope: !8)
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!37 = !DILocalVariable(name: "w", scope: !8, file: !1, line: 29, type: !11)
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!38 = !DILocation(line: 29, column: 8, scope: !8)
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!39 = !DILocation(line: 29, column: 19, scope: !8)
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!40 = !DILocation(line: 29, column: 12, scope: !8)
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!41 = !DILocation(line: 30, column: 3, scope: !8)
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!42 = !DILocation(line: 31, column: 10, scope: !8)
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!43 = !DILocation(line: 31, column: 3, scope: !8)
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