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3add36fb90
Third time's the charm? The previous attempt (r265345) caused ASan test failures on X86, as broken CFI caused stack traces to not work. This version of the patch makes sure not to merge with stack adjustments that have CFI, and to not add merged instructions' offests to the CFI about to be generated. This is already covered by the lit tests; I just got the expectations wrong previously. llvm-svn: 265623
54 lines
1.7 KiB
LLVM
54 lines
1.7 KiB
LLVM
; RUN: llc < %s -mtriple=i686-pc-linux | FileCheck %s
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; Function Attrs: optsize
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declare void @foo(i32, i32) #0
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declare x86_stdcallcc void @stdfoo(i32, i32) #0
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; CHECK-LABEL: test1:
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; CHECK: subl $8, %esp
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; CHECK: .cfi_adjust_cfa_offset 8
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; CHECK: pushl $2
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; CHECK: .cfi_adjust_cfa_offset 4
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; CHECK: pushl $1
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; CHECK: .cfi_adjust_cfa_offset 4
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; CHECK: calll foo
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; CHECK: addl $16, %esp
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; CHECK: .cfi_adjust_cfa_offset -16
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; CHECK: subl $8, %esp
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; CHECK: .cfi_adjust_cfa_offset 8
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; CHECK: pushl $4
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; CHECK: .cfi_adjust_cfa_offset 4
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; CHECK: pushl $3
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; CHECK: .cfi_adjust_cfa_offset 4
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; CHECK: calll stdfoo
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; CHECK: .cfi_adjust_cfa_offset -8
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; CHECK: addl $20, %esp
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; CHECK: .cfi_adjust_cfa_offset -8
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define void @test1() #0 !dbg !4 {
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entry:
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tail call void @foo(i32 1, i32 2) #1, !dbg !10
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tail call x86_stdcallcc void @stdfoo(i32 3, i32 4) #1, !dbg !11
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ret void, !dbg !12
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}
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attributes #0 = { nounwind optsize }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!7, !8}
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!llvm.ident = !{!9}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 250289)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, subprograms: !3)
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!1 = !DIFile(filename: "foo.c", directory: "foo")
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!2 = !{}
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!3 = !{!4}
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!4 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, variables: !2)
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!5 = !DISubroutineType(types: !6)
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!6 = !{null}
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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 = !{!"clang version 3.8.0 (trunk 250289)"}
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!10 = !DILocation(line: 4, column: 3, scope: !4)
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!11 = !DILocation(line: 5, column: 3, scope: !4)
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!12 = !DILocation(line: 6, column: 1, scope: !4)
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