diff options
Diffstat (limited to 'test/DebugInfo/X86/isel-cse-line.ll')
| -rw-r--r-- | test/DebugInfo/X86/isel-cse-line.ll | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/test/DebugInfo/X86/isel-cse-line.ll b/test/DebugInfo/X86/isel-cse-line.ll new file mode 100644 index 0000000000000..dfb058bea5b09 --- /dev/null +++ b/test/DebugInfo/X86/isel-cse-line.ll @@ -0,0 +1,100 @@ +; RUN: llc -filetype=asm -fast-isel=false -O0 < %s | FileCheck %s +; +; Generated by: +; clang -emit-llvm -S -g test.cpp + +; typedef double fp_t; +; typedef unsigned long int_t; +; +; int_t glb_start = 17; +; int_t glb_end = 42; +; +; int main() +; { +; int_t start = glb_start; +; int_t end = glb_end; +; +; fp_t dbl_start = (fp_t) start; +; fp_t dbl_end = (fp_t) end; +; +; return 0; +; } + +; SelectionDAG performs CSE on constant pool loads. Make sure line numbers +; from such nodes are not propagated. Doing so results in oscillating line numbers. + +; CHECK: .loc 1 12 +; CHECK: .loc 1 13 +; CHECK-NOT: .loc 1 12 + +; ModuleID = 't.cpp' +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +@glb_start = global i64 17, align 8 +@glb_end = global i64 42, align 8 + +; Function Attrs: norecurse nounwind uwtable +define i32 @main() !dbg !14 { + %1 = alloca i32, align 4 + %2 = alloca i64, align 8 + %3 = alloca i64, align 8 + %4 = alloca double, align 8 + %5 = alloca double, align 8 + store i32 0, i32* %1, align 4 + call void @llvm.dbg.declare(metadata i64* %2, metadata !18, metadata !19), !dbg !20 + %6 = load i64, i64* @glb_start, align 8, !dbg !21 + store i64 %6, i64* %2, align 8, !dbg !20 + call void @llvm.dbg.declare(metadata i64* %3, metadata !22, metadata !19), !dbg !23 + %7 = load i64, i64* @glb_end, align 8, !dbg !24 + store i64 %7, i64* %3, align 8, !dbg !23 + call void @llvm.dbg.declare(metadata double* %4, metadata !25, metadata !19), !dbg !26 + %8 = load i64, i64* %2, align 8, !dbg !27 + %9 = uitofp i64 %8 to double, !dbg !27 + store double %9, double* %4, align 8, !dbg !26 + call void @llvm.dbg.declare(metadata double* %5, metadata !28, metadata !19), !dbg !29 + %10 = load i64, i64* %3, align 8, !dbg !30 + %11 = uitofp i64 %10 to double, !dbg !30 + store double %11, double* %5, align 8, !dbg !29 + ret i32 0, !dbg !31 +} + +; Function Attrs: nounwind readnone +declare void @llvm.dbg.declare(metadata, metadata, metadata) + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!11, !12} +!llvm.ident = !{!13} + +!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 (trunk 268246)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, globals: !6) +!1 = !DIFile(filename: "/home/wpieb/test/D12094.cpp", directory: "/home/wpieb/build/llvm/trunk/llvm-RelWithDebInfo") +!2 = !{} +!3 = !{!4} +!4 = !DIDerivedType(tag: DW_TAG_typedef, name: "fp_t", file: !1, line: 1, baseType: !5) +!5 = !DIBasicType(name: "double", size: 64, align: 64, encoding: DW_ATE_float) +!6 = !{!7, !10} +!7 = distinct !DIGlobalVariable(name: "glb_start", scope: !0, file: !1, line: 4, type: !8, isLocal: false, isDefinition: true, variable: i64* @glb_start) +!8 = !DIDerivedType(tag: DW_TAG_typedef, name: "int_t", file: !1, line: 2, baseType: !9) +!9 = !DIBasicType(name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned) +!10 = distinct !DIGlobalVariable(name: "glb_end", scope: !0, file: !1, line: 5, type: !8, isLocal: false, isDefinition: true, variable: i64* @glb_end) +!11 = !{i32 2, !"Dwarf Version", i32 4} +!12 = !{i32 2, !"Debug Info Version", i32 3} +!13 = !{!"clang version 3.9.0 (trunk 268246)"} +!14 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 7, type: !15, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) +!15 = !DISubroutineType(types: !16) +!16 = !{!17} +!17 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) +!18 = !DILocalVariable(name: "start", scope: !14, file: !1, line: 9, type: !8) +!19 = !DIExpression() +!20 = !DILocation(line: 9, column: 9, scope: !14) +!21 = !DILocation(line: 9, column: 17, scope: !14) +!22 = !DILocalVariable(name: "end", scope: !14, file: !1, line: 10, type: !8) +!23 = !DILocation(line: 10, column: 9, scope: !14) +!24 = !DILocation(line: 10, column: 17, scope: !14) +!25 = !DILocalVariable(name: "dbl_start", scope: !14, file: !1, line: 12, type: !4) +!26 = !DILocation(line: 12, column: 8, scope: !14) +!27 = !DILocation(line: 12, column: 27, scope: !14) +!28 = !DILocalVariable(name: "dbl_end", scope: !14, file: !1, line: 13, type: !4) +!29 = !DILocation(line: 13, column: 8, scope: !14) +!30 = !DILocation(line: 13, column: 27, scope: !14) +!31 = !DILocation(line: 15, column: 3, scope: !14) |