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c83c29a7b7
There is no situation where this rarely-used argument cannot be substituted with a DIExpression and removing it allows us to simplify the DWARF backend. Note that this patch does not yet remove any of the newly dead code. rdar://problem/33580047 Differential Revision: https://reviews.llvm.org/D35951 llvm-svn: 309426
47 lines
2.0 KiB
LLVM
47 lines
2.0 KiB
LLVM
; RUN: llc -mtriple=i686-windows-msvc < %s | FileCheck %s --check-prefix=ASM
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; RUN: llc -mtriple=i686-windows-msvc < %s -filetype=obj | llvm-readobj -codeview - | FileCheck %s --check-prefix=OBJ
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target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
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target triple = "i686-pc-windows-msvc18.0.0"
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define double @f(double %p1) !dbg !4 {
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entry:
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%sub = fsub double -0.000000e+00, %p1, !dbg !16
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tail call void @llvm.dbg.value(metadata double %sub, metadata !10, metadata !14), !dbg !15
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ret double %sub
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}
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; ASM: .cv_def_range Lfunc_begin0 Lfunc_end0, "A\021\200\000\000\000"
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; OBJ: DefRangeRegisterSym {
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; OBJ: Register: 128
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; OBJ: MayHaveNoName: 0
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; OBJ: LocalVariableAddrRange {
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; OBJ: OffsetStart: .text+0x0
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; OBJ: ISectStart: 0x0
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; OBJ: Range: 0x7
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; OBJ: }
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; OBJ: }
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!11, !12}
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!llvm.ident = !{!13}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 (trunk 261537) (llvm/trunk 261463)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "<stdin>", directory: "/")
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!2 = !{}
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!4 = distinct !DISubprogram(name: "f", linkageName: "f", scope: !5, file: !5, line: 2, type: !6, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !9)
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!5 = !DIFile(filename: "t.ii", directory: "/")
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!6 = !DISubroutineType(types: !7)
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!7 = !{null, !8}
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!8 = !DIBasicType(name: "double", size: 64, align: 64, encoding: DW_ATE_float)
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!9 = !{!10}
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!10 = !DILocalVariable(name: "p1", arg: 1, scope: !4, file: !5, line: 2, type: !8)
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!11 = !{i32 2, !"CodeView", i32 1}
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!12 = !{i32 2, !"Debug Info Version", i32 3}
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!13 = !{!"clang version 3.9.0 (trunk 261537) (llvm/trunk 261463)"}
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!14 = !DIExpression()
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!15 = !DILocation(line: 2, scope: !4)
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!16 = !DILocation(line: 3, scope: !4)
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