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5326734b74
I meant to do this in D83913, but missed it while updating the feature list. Interestingly I think this is disabling the postRA scheduler. But it does match our default 64-bit behavior. Reviewed By: echristo Differential Revision: https://reviews.llvm.org/D83996
115 lines
5.5 KiB
LLVM
115 lines
5.5 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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; C source:
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; void escape(int *);
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; int ssp(int a) {
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; int arr[4] = {a, a, a, a};
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; escape(&arr[0]);
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; return a;
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; }
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; CHECK: _ssp: # @ssp
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; CHECK: .cv_fpo_proc _ssp 4
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; CHECK: pushl %esi
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; CHECK: .cv_fpo_pushreg %esi
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; CHECK: subl $20, %esp
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; CHECK: .cv_fpo_stackalloc 20
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; CHECK: .cv_fpo_endprologue
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; CHECK: movl 28(%esp), %esi
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; CHECK: ___security_cookie
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; CHECK: movl %esi, {{[0-9]*}}(%esp)
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; CHECK: movl %esi, {{[0-9]*}}(%esp)
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; CHECK: movl %esi, {{[0-9]*}}(%esp)
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; CHECK: movl %esi, {{[0-9]*}}(%esp)
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; CHECK: calll _escape
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; CHECK: calll @__security_check_cookie@4
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; CHECK: movl %esi, %eax
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; CHECK: addl $20, %esp
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; CHECK: popl %esi
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; CHECK: retl
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; CHECK: Ltmp2:
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; CHECK: .cv_fpo_endproc
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; ModuleID = 't.c'
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source_filename = "t.c"
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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 = "i386-pc-windows-msvc19.11.25508"
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; Function Attrs: nounwind sspstrong
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define i32 @ssp(i32 returned %a) local_unnamed_addr #0 !dbg !8 {
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entry:
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%arr = alloca [4 x i32], align 4
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tail call void @llvm.dbg.value(metadata i32 %a, metadata !13, metadata !DIExpression()), !dbg !18
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%0 = bitcast [4 x i32]* %arr to i8*, !dbg !19
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call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %0) #4, !dbg !19
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tail call void @llvm.dbg.declare(metadata [4 x i32]* %arr, metadata !14, metadata !DIExpression()), !dbg !20
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%arrayinit.begin = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i32 0, i32 0, !dbg !21
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store i32 %a, i32* %arrayinit.begin, align 4, !dbg !21, !tbaa !22
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%arrayinit.element = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i32 0, i32 1, !dbg !21
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store i32 %a, i32* %arrayinit.element, align 4, !dbg !21, !tbaa !22
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%arrayinit.element1 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i32 0, i32 2, !dbg !21
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store i32 %a, i32* %arrayinit.element1, align 4, !dbg !21, !tbaa !22
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%arrayinit.element2 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i32 0, i32 3, !dbg !21
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store i32 %a, i32* %arrayinit.element2, align 4, !dbg !21, !tbaa !22
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call void @escape(i32* nonnull %arrayinit.begin) #4, !dbg !26
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call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %0) #4, !dbg !27
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ret i32 %a, !dbg !28
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #2
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declare void @escape(i32*) local_unnamed_addr #3
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #2
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { nounwind sspstrong "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone speculatable }
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attributes #2 = { argmemonly nounwind }
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attributes #3 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #4 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6}
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!llvm.ident = !{!7}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "t.c", directory: "C:\5Csrc\5Cllvm-project\5Cbuild", checksumkind: CSK_MD5, checksum: "df0c1a43acd19a1255d45a3f2802cf9f")
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!2 = !{}
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!3 = !{i32 1, !"NumRegisterParameters", i32 0}
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!4 = !{i32 2, !"CodeView", i32 1}
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!5 = !{i32 2, !"Debug Info Version", i32 3}
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!6 = !{i32 1, !"wchar_size", i32 2}
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!7 = !{!"clang version 6.0.0 "}
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!8 = distinct !DISubprogram(name: "ssp", scope: !1, file: !1, line: 2, type: !9, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !12)
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!9 = !DISubroutineType(types: !10)
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!10 = !{!11, !11}
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!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!12 = !{!13, !14}
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!13 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 2, type: !11)
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!14 = !DILocalVariable(name: "arr", scope: !8, file: !1, line: 3, type: !15)
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!15 = !DICompositeType(tag: DW_TAG_array_type, baseType: !11, size: 128, elements: !16)
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!16 = !{!17}
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!17 = !DISubrange(count: 4)
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!18 = !DILocation(line: 2, column: 13, scope: !8)
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!19 = !DILocation(line: 3, column: 3, scope: !8)
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!20 = !DILocation(line: 3, column: 7, scope: !8)
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!21 = !DILocation(line: 3, column: 16, scope: !8)
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!22 = !{!23, !23, i64 0}
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!23 = !{!"int", !24, i64 0}
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!24 = !{!"omnipotent char", !25, i64 0}
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!25 = !{!"Simple C/C++ TBAA"}
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!26 = !DILocation(line: 4, column: 3, scope: !8)
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!27 = !DILocation(line: 6, column: 1, scope: !8)
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!28 = !DILocation(line: 5, column: 3, scope: !8)
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