1 ; RUN: opt < %s -S -inline | FileCheck %s 2 ; 3 ; The purpose of this test is to check that inline pass preserves debug info 4 ; for variable using the dbg.declare intrinsic. 5 ; 6 ;; This test was generated by running this command: 7 ;; clang.exe -S -O0 -emit-llvm -g foo.c 8 ;; 9 ;; foo.c 10 ;; ========================== 11 ;; float foo(float x) 12 ;; { 13 ;; return x; 14 ;; } 15 ;; 16 ;; void bar(float *dst) 17 ;; { 18 ;; dst[0] = foo(dst[0]); 19 ;; } 20 ;; ========================== 21 22 target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32" 23 target triple = "i686-pc-windows-msvc" 24 25 ; Function Attrs: nounwind 26 define float @foo(float %x) #0 !dbg !4 { 27 entry: 28 %x.addr = alloca float, align 4 29 store float %x, float* %x.addr, align 4 30 call void @llvm.dbg.declare(metadata float* %x.addr, metadata !16, metadata !17), !dbg !18 31 %0 = load float, float* %x.addr, align 4, !dbg !19 32 ret float %0, !dbg !19 33 } 34 35 ; Function Attrs: nounwind readnone 36 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 37 38 ; CHECK: define void @bar 39 40 ; Function Attrs: nounwind 41 define void @bar(float* %dst) #0 !dbg !9 { 42 entry: 43 44 ; CHECK: [[x_addr_i:%[a-zA-Z0-9.]+]] = alloca float, align 4 45 ; CHECK-NEXT: void @llvm.dbg.declare(metadata float* [[x_addr_i]], metadata [[m23:![0-9]+]], metadata !{{[0-9]+}}), !dbg [[m24:![0-9]+]] 46 47 %dst.addr = alloca float*, align 4 48 store float* %dst, float** %dst.addr, align 4 49 call void @llvm.dbg.declare(metadata float** %dst.addr, metadata !20, metadata !17), !dbg !21 50 %0 = load float*, float** %dst.addr, align 4, !dbg !22 51 %arrayidx = getelementptr inbounds float, float* %0, i32 0, !dbg !22 52 %1 = load float, float* %arrayidx, align 4, !dbg !22 53 %call = call float @foo(float %1), !dbg !22 54 55 ; CHECK-NOT: call float @foo 56 57 %2 = load float*, float** %dst.addr, align 4, !dbg !22 58 %arrayidx1 = getelementptr inbounds float, float* %2, i32 0, !dbg !22 59 store float %call, float* %arrayidx1, align 4, !dbg !22 60 ret void, !dbg !23 61 } 62 63 attributes #0 = { nounwind } 64 attributes #1 = { nounwind readnone } 65 66 !llvm.dbg.cu = !{!0} 67 !llvm.module.flags = !{!13, !14} 68 !llvm.ident = !{!15} 69 70 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.6.0 (trunk)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 71 !1 = !DIFile(filename: "foo.c", directory: "") 72 !2 = !{} 73 !4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, variables: !2) 74 !5 = !DIFile(filename: "foo.c", directory: "") 75 !6 = !DISubroutineType(types: !7) 76 !7 = !{!8, !8} 77 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float) 78 !9 = distinct !DISubprogram(name: "bar", line: 6, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 7, file: !1, scope: !5, type: !10, variables: !2) 79 !10 = !DISubroutineType(types: !11) 80 !11 = !{null, !12} 81 !12 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, baseType: !8) 82 !13 = !{i32 2, !"Dwarf Version", i32 4} 83 !14 = !{i32 2, !"Debug Info Version", i32 3} 84 !15 = !{!"clang version 3.6.0 (trunk)"} 85 !16 = !DILocalVariable(name: "x", line: 1, arg: 1, scope: !4, file: !5, type: !8) 86 !17 = !DIExpression() 87 !18 = !DILocation(line: 1, column: 17, scope: !4) 88 !19 = !DILocation(line: 3, column: 5, scope: !4) 89 !20 = !DILocalVariable(name: "dst", line: 6, arg: 1, scope: !9, file: !5, type: !12) 90 !21 = !DILocation(line: 6, column: 17, scope: !9) 91 !22 = !DILocation(line: 8, column: 14, scope: !9) 92 !23 = !DILocation(line: 9, column: 1, scope: !9) 93 94 ; CHECK: [[FOO:![0-9]+]] = distinct !DISubprogram(name: "foo", 95 ; CHECK: [[m23]] = !DILocalVariable(name: "x", arg: 1, scope: [[FOO]] 96 ; CHECK: [[BAR:![0-9]+]] = distinct !DISubprogram(name: "bar", 97 ; CHECK: [[m24]] = !DILocation(line: 1, column: 17, scope: [[FOO]], inlinedAt: [[CALL_SITE:![0-9]+]]) 98 ; CHECK: [[CALL_SITE]] = distinct !DILocation(line: 8, column: 14, scope: [[BAR]]) 99
