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 22target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32" 23target triple = "i686-pc-windows-msvc" 24 25; Function Attrs: nounwind 26define float @foo(float %x) #0 { 27entry: 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 36declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 37 38; CHECK: define void @bar 39 40; Function Attrs: nounwind 41define void @bar(float* %dst) #0 { 42entry: 43 44; CHECK: [[x_addr_i:%[a-zA-Z0-9.]+]] = alloca float, align 4 45 46 %dst.addr = alloca float*, align 4 47 store float* %dst, float** %dst.addr, align 4 48 call void @llvm.dbg.declare(metadata float** %dst.addr, metadata !20, metadata !17), !dbg !21 49 %0 = load float*, float** %dst.addr, align 4, !dbg !22 50 %arrayidx = getelementptr inbounds float, float* %0, i32 0, !dbg !22 51 %1 = load float, float* %arrayidx, align 4, !dbg !22 52 %call = call float @foo(float %1), !dbg !22 53 54; CHECK-NOT: call float @foo 55; CHECK: void @llvm.dbg.declare(metadata float* [[x_addr_i]], metadata [[m23:![0-9]+]], metadata !{{[0-9]+}}), !dbg [[m24:![0-9]+]] 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 63attributes #0 = { nounwind } 64attributes #1 = { nounwind readnone } 65 66!llvm.dbg.cu = !{!0} 67!llvm.module.flags = !{!13, !14} 68!llvm.ident = !{!15} 69 70!0 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.6.0 (trunk)", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2) 71!1 = !MDFile(filename: "foo.c", directory: "") 72!2 = !{} 73!3 = !{!4, !9} 74!4 = !MDSubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, function: float (float)* @foo, variables: !2) 75!5 = !MDFile(filename: "foo.c", directory: "") 76!6 = !MDSubroutineType(types: !7) 77!7 = !{!8, !8} 78!8 = !MDBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float) 79!9 = !MDSubprogram(name: "bar", line: 6, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !1, scope: !5, type: !10, function: void (float*)* @bar, variables: !2) 80!10 = !MDSubroutineType(types: !11) 81!11 = !{null, !12} 82!12 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, baseType: !8) 83!13 = !{i32 2, !"Dwarf Version", i32 4} 84!14 = !{i32 2, !"Debug Info Version", i32 3} 85!15 = !{!"clang version 3.6.0 (trunk)"} 86!16 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 1, arg: 1, scope: !4, file: !5, type: !8) 87!17 = !MDExpression() 88!18 = !MDLocation(line: 1, column: 17, scope: !4) 89!19 = !MDLocation(line: 3, column: 5, scope: !4) 90!20 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "dst", line: 6, arg: 1, scope: !9, file: !5, type: !12) 91!21 = !MDLocation(line: 6, column: 17, scope: !9) 92!22 = !MDLocation(line: 8, column: 14, scope: !9) 93!23 = !MDLocation(line: 9, column: 1, scope: !9) 94 95; CHECK: [[FOO:![0-9]+]] = !MDSubprogram(name: "foo", 96; CHECK: [[BAR:![0-9]+]] = !MDSubprogram(name: "bar", 97; CHECK: [[m23]] = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", arg: 1, scope: [[FOO]] 98; CHECK: [[CALL_SITE:![0-9]+]] = distinct !MDLocation(line: 8, column: 14, scope: [[BAR]]) 99; CHECK: [[m24]] = !MDLocation(line: 1, column: 17, scope: [[FOO]], inlinedAt: [[CALL_SITE]]) 100