1; RUN: llc < %s -filetype=obj -o - | llvm-readobj --codeview --codeview-subsection-bytes - | FileCheck %s 2; RUN: llc < %s -o - | llvm-mc -filetype=obj --triple=x86_64-windows | llvm-readobj --codeview --codeview-subsection-bytes - | FileCheck %s 3 4; Check how we pad out the LF_FUNC_ID records. The 00F3F2F1 bytes in LeafData are 5; what's interesting here. 6 7; CHECK: FuncId (0x1002) { 8; CHECK: TypeLeafKind: LF_FUNC_ID (0x1601) 9; CHECK: Name: a 10; CHECK: LeafData ( 11; CHECK: 0000: {{.*}} 6100F2F1 |........a...| 12; CHECK: ) 13; CHECK: } 14; CHECK: FuncId (0x1003) { 15; CHECK: TypeLeafKind: LF_FUNC_ID (0x1601) 16; CHECK: Name: ab 17; CHECK: LeafData ( 18; CHECK: 0000: {{.*}} 616200F1 |........ab..| 19; CHECK: ) 20; CHECK: } 21; CHECK: FuncId (0x1004) { 22; CHECK: TypeLeafKind: LF_FUNC_ID (0x1601) 23; CHECK: Name: abc 24; CHECK: LeafData ( 25; CHECK: 0000: {{.*}} 61626300 |........abc.| 26; CHECK: ) 27; CHECK: } 28; CHECK: FuncId (0x1005) { 29; CHECK: TypeLeafKind: LF_FUNC_ID (0x1601) 30; CHECK: Name: abcd 31; CHECK: LeafData ( 32; CHECK: 0000: {{.*}} 61626364 00F3F2F1 |........abcd....| 33; CHECK: ) 34; CHECK: } 35 36; C++ source used to generate the IR: 37; 38; extern volatile int x; 39; static void a() { x++; } 40; static void ab() { x++; } 41; static void abc() { x++; } 42; static void abcd() { x++; } 43; int main() { 44; a(); 45; ab(); 46; abc(); 47; abcd(); 48; } 49 50; ModuleID = 't.cpp' 51source_filename = "t.cpp" 52target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" 53target triple = "x86_64-pc-windows-msvc" 54 55@x = external global i32, align 4 56 57; Function Attrs: norecurse nounwind 58define i32 @main() #0 !dbg !6 { 59entry: 60 store volatile i32 0, i32* @x, align 4, !dbg !11, !tbaa !16 61 store volatile i32 0, i32* @x, align 4, !dbg !20, !tbaa !16 62 store volatile i32 0, i32* @x, align 4, !dbg !23, !tbaa !16 63 store volatile i32 0, i32* @x, align 4, !dbg !26, !tbaa !16 64 ret i32 0, !dbg !29 65} 66 67attributes #0 = { norecurse nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-features"="+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 68 69!llvm.dbg.cu = !{!0} 70!llvm.module.flags = !{!3, !4} 71!llvm.ident = !{!5} 72 73!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 270461) (llvm/trunk 270469)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 74!1 = !DIFile(filename: "<stdin>", directory: "D:\5Csrc\5Cllvm\5Cbuild") 75!2 = !{} 76!3 = !{i32 2, !"CodeView", i32 1} 77!4 = !{i32 2, !"Debug Info Version", i32 3} 78!5 = !{!"clang version 3.9.0 (trunk 270461) (llvm/trunk 270469)"} 79!6 = distinct !DISubprogram(name: "main", scope: !7, file: !7, line: 6, type: !8, isLocal: false, isDefinition: true, scopeLine: 6, isOptimized: true, unit: !0, retainedNodes: !2) 80!7 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild") 81!8 = !DISubroutineType(types: !9) 82!9 = !{!10} 83!10 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 84!11 = !DILocation(line: 2, scope: !12, inlinedAt: !15) 85!12 = distinct !DISubprogram(name: "a", scope: !7, file: !7, line: 2, type: !13, isLocal: true, isDefinition: true, scopeLine: 2, isOptimized: true, unit: !0, retainedNodes: !2) 86!13 = !DISubroutineType(types: !14) 87!14 = !{null} 88!15 = distinct !DILocation(line: 7, scope: !6) 89!16 = !{!17, !17, i64 0} 90!17 = !{!"int", !18, i64 0} 91!18 = !{!"omnipotent char", !19, i64 0} 92!19 = !{!"Simple C/C++ TBAA"} 93!20 = !DILocation(line: 3, scope: !21, inlinedAt: !22) 94!21 = distinct !DISubprogram(name: "ab", scope: !7, file: !7, line: 3, type: !13, isLocal: true, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0, retainedNodes: !2) 95!22 = distinct !DILocation(line: 8, scope: !6) 96!23 = !DILocation(line: 4, scope: !24, inlinedAt: !25) 97!24 = distinct !DISubprogram(name: "abc", scope: !7, file: !7, line: 4, type: !13, isLocal: true, isDefinition: true, scopeLine: 4, isOptimized: true, unit: !0, retainedNodes: !2) 98!25 = distinct !DILocation(line: 9, scope: !6) 99!26 = !DILocation(line: 5, scope: !27, inlinedAt: !28) 100!27 = distinct !DISubprogram(name: "abcd", scope: !7, file: !7, line: 5, type: !13, isLocal: true, isDefinition: true, scopeLine: 5, isOptimized: true, unit: !0, retainedNodes: !2) 101!28 = distinct !DILocation(line: 10, scope: !6) 102!29 = !DILocation(line: 11, scope: !6) 103