| ; ModuleID = 'formal_parameter.c' |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.9.0" |
| ; |
| ; From (clang -g -c -O1): |
| ; |
| ; int lookup(int* map); |
| ; int verify(int val); |
| ; void foo(int map) |
| ; { |
| ; lookup(&map); |
| ; if (!verify(map)) { } |
| ; } |
| ; |
| ; RUN: opt %s -O2 -S -o %t |
| ; RUN: cat %t | FileCheck --check-prefix=LOWERING %s |
| ; RUN: llc -filetype=obj %t -o - | llvm-dwarfdump -debug-info - | FileCheck %s |
| ; Test that we only emit only one DW_AT_formal_parameter "map" for this function. |
| ; rdar://problem/14874886 |
| ; |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name {{.*}}map |
| ; CHECK-NOT: DW_AT_name {{.*}}map |
| |
| ; Function Attrs: nounwind ssp uwtable |
| define void @foo(i32 %map) #0 !dbg !4 { |
| entry: |
| %map.addr = alloca i32, align 4 |
| store i32 %map, ptr %map.addr, align 4, !tbaa !15 |
| call void @llvm.dbg.declare(metadata ptr %map.addr, metadata !10, metadata !DIExpression()), !dbg !14 |
| %call = call i32 (ptr, ...) @lookup(ptr %map.addr) #3, !dbg !19 |
| ; Ensure that all dbg intrinsics have the same scope after |
| ; LowerDbgDeclare is finished with them. |
| ; |
| ; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC:.*]] |
| ; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC]] |
| ; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC]] |
| %0 = load i32, ptr %map.addr, align 4, !dbg !20, !tbaa !15 |
| %call1 = call i32 (i32, ...) @verify(i32 %0) #3, !dbg !20 |
| ret void, !dbg !22 |
| } |
| |
| ; LOWERING: ![[SCOPE:[0-9]+]] = distinct !DISubprogram(name: "foo", |
| ; LOWERING: ![[LOC]] = !DILocation(line: 0, scope: ![[SCOPE]] |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| declare i32 @lookup(...) |
| |
| declare i32 @verify(...) |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { nounwind ssp uwtable } |
| attributes #1 = { nounwind readnone } |
| attributes #3 = { nounwind } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!11, !12} |
| !llvm.ident = !{!13} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) |
| !1 = !DIFile(filename: "formal_parameter.c", directory: "") |
| !2 = !{} |
| !4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, retainedNodes: !9) |
| !5 = !DIFile(filename: "formal_parameter.c", directory: "") |
| !6 = !DISubroutineType(types: !7) |
| !7 = !{null, !8} |
| !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !9 = !{!10} |
| !10 = !DILocalVariable(name: "map", line: 1, arg: 1, scope: !4, file: !5, type: !8) |
| !11 = !{i32 2, !"Dwarf Version", i32 2} |
| !12 = !{i32 1, !"Debug Info Version", i32 3} |
| !13 = !{!"clang version 3.5.0 "} |
| !14 = !DILocation(line: 1, scope: !4) |
| !15 = !{!16, !16, i64 0} |
| !16 = !{!"int", !17, i64 0} |
| !17 = !{!"omnipotent char", !18, i64 0} |
| !18 = !{!"Simple C/C++ TBAA"} |
| !19 = !DILocation(line: 3, scope: !4) |
| !20 = !DILocation(line: 4, scope: !21) |
| !21 = distinct !DILexicalBlock(line: 4, column: 0, file: !1, scope: !4) |
| !22 = !DILocation(line: 5, scope: !4) |