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1; RUN: llc < %s -O1 -stop-after=livedebugvalues -o - | FileCheck %s2 3; This ll-file was created by:4; clang --target=powerpc-apple-darwin9 -O1 -S -g -emit-llvm debuginfo-stackarg.c5;6; with debuginfo-stackarg.c being the program:7; long long foo(long long bar1, long long bar2, long long bar3, long long bar4, long long bar5)8; {9; return bar1 + bar2 + bar3 + bar4 + bar5;10; }11 12; ModuleID = 'debuginfo-stackarg.c'13source_filename = "debuginfo-stackarg.c"14target datalayout = "E-m:o-p:32:32-f64:32:64-n32"15;;;target triple = "powerpc-apple-macosx10.5.0"16target triple = "powerpc-unknown-linux-gnu"17 18; Function Attrs: nounwind readnone ssp uwtable19define i64 @foo(i64 %bar1, i64 %bar2, i64 %bar3, i64 %bar4, i64 %bar5) local_unnamed_addr #0 !dbg !8 {20; Variable bar5 should be associated with a position on the stack (offset relative r1).21; Let's verify that we point out the start address (lowest address).22;23; First find the metadata id for bar5.24; CHECK: !17 = !DILocalVariable(name: "bar5", arg: 525;26; Now check that we got two entries on the fixed stack with "expected" offsets.27; CHECK-LABEL: fixedStack:28; CHECK: id: 0, type: default, offset: 12, size: 429; CHECK: id: 1, type: default, offset: 8, size: 430; CHECK-NOT: id: 231; CHECK-LABEL: stack:32;33; Finally check the resulting function body.34; We expect to find a DBG_VALUE refering to the metadata id for bar5, using the lowest35; of the two fixed stack offsets found earlier.36; CHECK-LABEL: body:37; CHECK: DBG_VALUE $r1, 0, !17, !DIExpression(DW_OP_plus_uconst, 8)38entry:39 tail call void @llvm.dbg.value(metadata i64 %bar1, metadata !13, metadata !DIExpression()), !dbg !1840 tail call void @llvm.dbg.value(metadata i64 %bar2, metadata !14, metadata !DIExpression()), !dbg !1941 tail call void @llvm.dbg.value(metadata i64 %bar3, metadata !15, metadata !DIExpression()), !dbg !2042 tail call void @llvm.dbg.value(metadata i64 %bar4, metadata !16, metadata !DIExpression()), !dbg !2143 tail call void @llvm.dbg.value(metadata i64 %bar5, metadata !17, metadata !DIExpression()), !dbg !2244 %add = add nsw i64 %bar2, %bar1, !dbg !2345 %add1 = add nsw i64 %add, %bar3, !dbg !2446 %add2 = add nsw i64 %add1, %bar4, !dbg !2547 %add3 = add nsw i64 %add2, %bar5, !dbg !2648 ret i64 %add3, !dbg !2749}50 51; Function Attrs: nounwind readnone speculatable52declare void @llvm.dbg.value(metadata, metadata, metadata) #153 54attributes #0 = { nounwind readnone ssp uwtable }55attributes #1 = { nounwind readnone speculatable }56 57!llvm.dbg.cu = !{!0}58!llvm.module.flags = !{!3, !4, !5, !6}59!llvm.ident = !{!7}60 61!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)62!1 = !DIFile(filename: "debuginfo-stackarg.c", directory: "/repo")63!2 = !{}64!3 = !{i32 2, !"Dwarf Version", i32 2}65!4 = !{i32 2, !"Debug Info Version", i32 3}66!5 = !{i32 1, !"wchar_size", i32 4}67!6 = !{i32 7, !"PIC Level", i32 2}68!7 = !{!"clang version 6.0.0"}69!8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !12)70!9 = !DISubroutineType(types: !10)71!10 = !{!11, !11, !11, !11, !11, !11}72!11 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed)73!12 = !{!13, !14, !15, !16, !17}74!13 = !DILocalVariable(name: "bar1", arg: 1, scope: !8, file: !1, line: 1, type: !11)75!14 = !DILocalVariable(name: "bar2", arg: 2, scope: !8, file: !1, line: 1, type: !11)76!15 = !DILocalVariable(name: "bar3", arg: 3, scope: !8, file: !1, line: 1, type: !11)77!16 = !DILocalVariable(name: "bar4", arg: 4, scope: !8, file: !1, line: 1, type: !11)78!17 = !DILocalVariable(name: "bar5", arg: 5, scope: !8, file: !1, line: 1, type: !11)79!18 = !DILocation(line: 1, column: 25, scope: !8)80!19 = !DILocation(line: 1, column: 41, scope: !8)81!20 = !DILocation(line: 1, column: 57, scope: !8)82!21 = !DILocation(line: 1, column: 73, scope: !8)83!22 = !DILocation(line: 1, column: 89, scope: !8)84!23 = !DILocation(line: 3, column: 15, scope: !8)85!24 = !DILocation(line: 3, column: 22, scope: !8)86!25 = !DILocation(line: 3, column: 29, scope: !8)87!26 = !DILocation(line: 3, column: 36, scope: !8)88!27 = !DILocation(line: 3, column: 3, scope: !8)89