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https://github.com/c64scene-ar/llvm-6502.git
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a7512d1d4a
Summary: Looks like new code from [[ http://reviews.llvm.org/rL222057 | rL222057 ]] doesn't account for early `return` in `ARMFrameLowering::emitPrologue`, which leads to loosing `.cfi_def_cfa_offset` directive for functions without stack frame. Reviewers: echristo, rengolin, asl, t.p.northover Reviewed By: t.p.northover Subscribers: llvm-commits, rengolin, aemerson Differential Revision: http://reviews.llvm.org/D8606 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234399 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
1.4 KiB
LLVM
37 lines
1.4 KiB
LLVM
; RUN: llc -mtriple=armv7-none-linux-gnueabihf < %s -o - | FileCheck %s
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; Function Attrs: nounwind
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define void @need_cfi_def_cfa_offset() #0 {
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; CHECK-LABEL: need_cfi_def_cfa_offset:
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; CHECK: sub sp, sp, #4
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; CHECK: .cfi_def_cfa_offset 4
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entry:
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%Depth = alloca i32, align 4
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call void @llvm.dbg.declare(metadata i32* %Depth, metadata !9, metadata !10), !dbg !11
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store i32 2, i32* %Depth, align 4, !dbg !11
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ret void, !dbg !12
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!7, !8}
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!0 = !MDCompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: false)
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!1 = !MDFile(filename: "file.c", directory: "/dir")
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!2 = !{}
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!3 = !MDSubprogram(name: "need_cfi_def_cfa_offset", scope: !1, file: !1, line: 1, type: !4, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: false, function: void ()* @need_cfi_def_cfa_offset, variables: !2)
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!4 = !MDSubroutineType(types: !5)
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!5 = !{null}
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!6 = !MDBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "Depth", scope: !3, file: !1, line: 3, type: !6)
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!10 = !MDExpression()
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!11 = !MDLocation(line: 3, column: 9, scope: !3)
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!12 = !MDLocation(line: 7, column: 5, scope: !3)
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