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f7ea499702
Part of the effort to refactoring frame pointer code generation. We used to use two function attributes "no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" to represent three kinds of frame pointer usage: (all) frames use frame pointer, (non-leaf) frames use frame pointer, (none) frame use frame pointer. This CL makes the idea explicit by using only one enum function attribute "frame-pointer" Option "-frame-pointer=" replaces "-disable-fp-elim" for tools such as llc. "no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" are still supported for easy migration to "frame-pointer". tests are mostly updated with // replace command line args ‘-disable-fp-elim=false’ with ‘-frame-pointer=none’ grep -iIrnl '\-disable-fp-elim=false' * | xargs sed -i '' -e "s/-disable-fp-elim=false/-frame-pointer=none/g" // replace command line args ‘-disable-fp-elim’ with ‘-frame-pointer=all’ grep -iIrnl '\-disable-fp-elim' * | xargs sed -i '' -e "s/-disable-fp-elim/-frame-pointer=all/g" Patch by Yuanfang Chen (tabloid.adroit)! Differential Revision: https://reviews.llvm.org/D56351 llvm-svn: 351049
40 lines
1.9 KiB
LLVM
40 lines
1.9 KiB
LLVM
; RUN: %llc_dwarf -debugger-tune=lldb -asm-verbose -O1 -o - < %s | FileCheck %s
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; RUN: %llc_dwarf -debugger-tune=gdb -asm-verbose -O1 -o - < %s | FileCheck %s --check-prefix=DISABLE
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; RUN: %llc_dwarf -frame-pointer=all -debugger-tune=lldb -asm-verbose -O1 -o - < %s | FileCheck %s --check-prefix=DISABLE
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; CHECK: DW_AT_APPLE_omit_frame_ptr
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; DISABLE-NOT: DW_AT_APPLE_omit_frame_ptr
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define i32 @foo() nounwind ssp !dbg !1 {
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entry:
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%retval = alloca i32 ; <i32*> [#uses=2]
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%0 = alloca i32 ; <i32*> [#uses=2]
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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store i32 42, i32* %0, align 4, !dbg !0
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%1 = load i32, i32* %0, align 4, !dbg !0 ; <i32> [#uses=1]
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store i32 %1, i32* %retval, align 4, !dbg !0
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br label %return, !dbg !0
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return: ; preds = %entry
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%retval1 = load i32, i32* %retval, !dbg !0 ; <i32> [#uses=1]
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ret i32 %retval1, !dbg !7
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}
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!llvm.dbg.cu = !{!3}
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!llvm.module.flags = !{!12}
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!9 = !{!1}
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!0 = !DILocation(line: 2, scope: !1)
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!1 = distinct !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, scopeLine: 2, file: !10, scope: null, type: !4)
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!2 = !DIFile(filename: "a.c", directory: "/tmp")
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!3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: FullDebug, file: !10, enums: !11, retainedTypes: !11, imports: null)
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!4 = !DISubroutineType(types: !5)
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!5 = !{!6}
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!6 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!7 = !DILocation(line: 2, scope: !8)
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!8 = distinct !DILexicalBlock(line: 2, column: 0, file: !10, scope: !1)
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!10 = !DIFile(filename: "a.c", directory: "/tmp")
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!11 = !{}
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!12 = !{i32 1, !"Debug Info Version", i32 3}
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