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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
38 lines
1.6 KiB
LLVM
38 lines
1.6 KiB
LLVM
; RUN: llc -fast-isel-sink-local-values -frame-pointer=all -O0 %s -mtriple x86_64-unknown-linux-gnu -o - | FileCheck %s
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; int callme(int);
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; int isel_line_test2() {
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; callme(400);
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; return 0;
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; }
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define i32 @isel_line_test2() nounwind uwtable !dbg !5 {
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; The stack adjustment should be part of the prologue.
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; CHECK: isel_line_test2:
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; CHECK: {{subq|leaq}} {{.*}}, %rsp
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; CHECK: .loc 1 5 3 prologue_end
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; CHECK: movl $400, %edi
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; CHECK: callq callme
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entry:
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%call = call i32 @callme(i32 400), !dbg !10
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ret i32 0, !dbg !12
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}
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declare i32 @callme(i32)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!14}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.2 (trunk 164980) (llvm/trunk 164979)", isOptimized: false, emissionKind: FullDebug, file: !13, enums: !1, retainedTypes: !1, globals: !1, imports: !1)
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!1 = !{}
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!5 = distinct !DISubprogram(name: "isel_line_test2", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !0, scopeLine: 4, file: !13, scope: !6, type: !7, retainedNodes: !1)
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!6 = !DIFile(filename: "bar.c", directory: "/usr/local/google/home/echristo/tmp")
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!7 = !DISubroutineType(types: !8)
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!8 = !{!9}
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!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!10 = !DILocation(line: 5, column: 3, scope: !11)
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!11 = distinct !DILexicalBlock(line: 4, column: 1, file: !13, scope: !5)
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!12 = !DILocation(line: 6, column: 3, scope: !11)
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!13 = !DIFile(filename: "bar.c", directory: "/usr/local/google/home/echristo/tmp")
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!14 = !{i32 1, !"Debug Info Version", i32 3}
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