| # RUN: llc -run-pass=prologepilog -o - %s | FileCheck %s |
| --- | |
| ; ModuleID = 'dbg.opt.ll' |
| source_filename = "dbg.c" |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; Function Attrs: noinline nounwind uwtable |
| define dso_local zeroext i16 @foo(i16 zeroext %d0, i16 zeroext %d1, i16 zeroext %d2, i16 zeroext %d3, i16 zeroext %d4, i16 zeroext %d5, i16 zeroext %d6, i16 zeroext %d7, i16 zeroext %d8, i16 signext %x) #0 !dbg !7 { |
| entry: |
| call void @llvm.dbg.value(metadata i16 %x, metadata !32, metadata !DIExpression(DW_OP_LLVM_convert, 16, DW_ATE_signed, DW_OP_LLVM_convert, 32, DW_ATE_signed, DW_OP_stack_value)), !dbg !34 |
| ret i16 %x |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { noinline nounwind uwtable } |
| attributes #1 = { nounwind readnone speculatable } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5} |
| !llvm.ident = !{!6} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 9.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) |
| !1 = !DIFile(filename: "dbg.c", directory: "/tmp") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 4} |
| !6 = !{!"clang version 9.0.0"} |
| !7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2) |
| !8 = !DISubroutineType(types: !9) |
| !9 = !{!10, !10, !10, !10, !10, !10, !10, !10, !10, !10, !10} |
| !10 = !DIDerivedType(tag: DW_TAG_typedef, name: "T", file: !1, line: 1, baseType: !11) |
| !11 = !DIBasicType(name: "signed short", size: 16, encoding: DW_ATE_signed) |
| !32 = !DILocalVariable(name: "y", scope: !7, file: !1, line: 3, type: !33) |
| !33 = !DIBasicType(name: "signed int", size: 32, encoding: DW_ATE_signed) |
| !34 = !DILocation(line: 3, column: 20, scope: !7) |
| |
| ... |
| --- |
| name: foo |
| tracksRegLiveness: true |
| fixedStack: |
| - { id: 0, type: default, offset: 24, size: 2, alignment: 8, stack-id: default, |
| isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| stack: [] |
| constants: [] |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| renamable $ax = MOV16rm %fixed-stack.0, 1, $noreg, 0, $noreg :: (load (s16) from %fixed-stack.0, align 8) |
| DBG_VALUE %fixed-stack.0, 0, !32, !DIExpression(DW_OP_LLVM_convert, 16, DW_ATE_signed, DW_OP_LLVM_convert, 32, DW_ATE_signed, DW_OP_stack_value), debug-location !34 |
| RET 0, $ax |
| ... |
| # CHECK: machineFunctionInfo |
| # CHECK: DBG_VALUE $rsp, $noreg, !12, !DIExpression(DW_OP_plus_uconst, {{[0-9]+}}, DW_OP_deref_size, 2, DW_OP_LLVM_convert, 16, DW_ATE_signed, DW_OP_LLVM_convert, 32, DW_ATE_signed, DW_OP_stack_value), debug-location !14 |