1 ; RUN: llc -O1 -filetype=asm -mtriple x86_64-unknown-linux-gnu -mcpu=x86-64 -o - %s -stop-after=livedebugvars | FileCheck %s 2 3 ; CHECK: $eax = MOV32rm 4 ; CHECK: DBG_VALUE debug-use $eax 5 ; CHECK: $eax = SHL32rCL killed renamable $eax 6 ; CHECK: DBG_VALUE debug-use $eax 7 ; CHECK: DBG_VALUE debug-use $rsp, 0, !{{[0-9]+}}, !DIExpression(DW_OP_constu, 4, DW_OP_minus) 8 ; CHECK: DBG_VALUE debug-use $eax 9 ; CHECK: $eax = SHL32rCL killed renamable $eax 10 ; CHECK: DBG_VALUE debug-use $eax 11 ; CHECK: RETQ $eax 12 13 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 14 target triple = "x86_64-unknown-linux-gnu" 15 16 @var = local_unnamed_addr global i32 8, !dbg !0 17 @sc = local_unnamed_addr global i32 1, !dbg !6 18 19 define i32 @main() local_unnamed_addr !dbg !14 { 20 entry: 21 %0 = load i32, i32* @var 22 tail call void @llvm.dbg.value(metadata i32 %0, metadata !18, metadata !DIExpression()), !dbg !20 23 %1 = load i32, i32* @sc 24 %shl = shl i32 %0, %1 25 tail call void @llvm.dbg.value(metadata i32 %shl, metadata !18, metadata !DIExpression()), !dbg !20 26 tail call void asm sideeffect "", "~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15},~{dirflag},~{fpsr},~{flags}"(), !srcloc !25 27 %2 = load i32, i32* @sc 28 %shl2 = shl i32 %shl, %2 29 tail call void @llvm.dbg.value(metadata i32 %shl2, metadata !18, metadata !DIExpression()), !dbg !20 30 store i32 %shl2, i32* @var 31 ret i32 %shl2 32 } 33 34 declare void @llvm.dbg.value(metadata, metadata, metadata) 35 36 !llvm.dbg.cu = !{!2} 37 !llvm.module.flags = !{!10, !11, !12} 38 39 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 40 !1 = distinct !DIGlobalVariable(name: "var", scope: !2, file: !3, line: 10, type: !9, isLocal: false, isDefinition: true) 41 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 6.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) 42 !3 = !DIFile(filename: "bar.c", directory: ".") 43 !4 = !{} 44 !5 = !{!0, !6} 45 !6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression()) 46 !7 = distinct !DIGlobalVariable(name: "sc", scope: !2, file: !3, line: 11, type: !8, isLocal: false, isDefinition: true) 47 !8 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned) 48 !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 49 !10 = !{i32 2, !"Dwarf Version", i32 4} 50 !11 = !{i32 2, !"Debug Info Version", i32 3} 51 !12 = !{i32 1, !"wchar_size", i32 4} 52 !14 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 12, type: !15, isLocal: false, isDefinition: true, scopeLine: 12, isOptimized: true, unit: !2, retainedNodes: !17) 53 !15 = !DISubroutineType(types: !16) 54 !16 = !{!9} 55 !17 = !{!18} 56 !18 = !DILocalVariable(name: "bazinga", scope: !14, file: !3, line: 13, type: !9) 57 !20 = !DILocation(line: 13, column: 7, scope: !14) 58 !25 = !{i32 -2147471481} 59
