-
Notifications
You must be signed in to change notification settings - Fork 10.8k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[GVNSink] Skip debug intrinsics when identifying sinking candidates (#…
- Loading branch information
Showing
2 changed files
with
89 additions
and
3 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
86 changes: 86 additions & 0 deletions
86
llvm/test/Transforms/GVNSink/sink-ignore-dbg-intrinsics.ll
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,86 @@ | ||
; RUN: opt < %s -passes=gvn-sink -S | FileCheck %s | ||
|
||
; Function Attrs: noinline nounwind uwtable | ||
define dso_local i32 @fun(i32 noundef %a, i32 noundef %b) #0 !dbg !10 { | ||
entry: | ||
tail call void @llvm.dbg.value(metadata i32 %a, metadata !15, metadata !DIExpression()), !dbg !16 | ||
tail call void @llvm.dbg.value(metadata i32 %b, metadata !17, metadata !DIExpression()), !dbg !16 | ||
%cmp = icmp sgt i32 %b, 10, !dbg !18 | ||
br i1 %cmp, label %if.then, label %if.else, !dbg !20 | ||
|
||
if.then: ; preds = %entry | ||
%add = add nsw i32 %a, 1, !dbg !21 | ||
tail call void @llvm.dbg.value(metadata i32 %add, metadata !23, metadata !DIExpression()), !dbg !24 | ||
%xor = xor i32 %add, 1, !dbg !25 | ||
tail call void @llvm.dbg.value(metadata i32 %xor, metadata !26, metadata !DIExpression()), !dbg !24 | ||
tail call void @llvm.dbg.value(metadata i32 %xor, metadata !27, metadata !DIExpression()), !dbg !16 | ||
br label %if.end, !dbg !28 | ||
|
||
if.else: ; preds = %entry | ||
%add1 = add nsw i32 %b, 1, !dbg !29 | ||
tail call void @llvm.dbg.value(metadata i32 %add1, metadata !31, metadata !DIExpression()), !dbg !32 | ||
%xor2 = xor i32 %add1, 1, !dbg !33 | ||
tail call void @llvm.dbg.value(metadata i32 %xor2, metadata !34, metadata !DIExpression()), !dbg !32 | ||
tail call void @llvm.dbg.value(metadata i32 %xor2, metadata !27, metadata !DIExpression()), !dbg !16 | ||
br label %if.end | ||
|
||
; CHECK-LABEL: if.end: | ||
; CHECK: %a.sink = phi i32 [ %a, %if.then ], [ %b, %if.else ] | ||
; CHECK: %add = add nsw i32 %a.sink, 1 | ||
; CHECK: %xor = xor i32 %add, 1 | ||
if.end: ; preds = %if.else, %if.then | ||
%ret.0 = phi i32 [ %xor, %if.then ], [ %xor2, %if.else ], !dbg !35 | ||
tail call void @llvm.dbg.value(metadata i32 %ret.0, metadata !27, metadata !DIExpression()), !dbg !16 | ||
ret i32 %ret.0, !dbg !36 | ||
} | ||
|
||
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none) | ||
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 | ||
|
||
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none) | ||
declare void @llvm.dbg.value(metadata, metadata, metadata) #1 | ||
|
||
attributes #0 = { noinline nounwind uwtable "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } | ||
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) } | ||
|
||
!llvm.dbg.cu = !{!0} | ||
!llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8} | ||
!llvm.ident = !{!9} | ||
|
||
!0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "clang version 18.0.0git (https://github.com/llvm/llvm-project.git 5dfcb3e5d1d16bb4f8fce52b3c089119ed977e7f)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) | ||
!1 = !DIFile(filename: "main.c", directory: "/home/hs/llvm-test", checksumkind: CSK_MD5, checksum: "68c28c3d0877bed08ff43db70c573802") | ||
!2 = !{i32 7, !"Dwarf Version", i32 5} | ||
!3 = !{i32 2, !"Debug Info Version", i32 3} | ||
!4 = !{i32 1, !"wchar_size", i32 4} | ||
!5 = !{i32 8, !"PIC Level", i32 2} | ||
!6 = !{i32 7, !"PIE Level", i32 2} | ||
!7 = !{i32 7, !"uwtable", i32 2} | ||
!8 = !{i32 7, !"frame-pointer", i32 2} | ||
!9 = !{!"clang version 18.0.0git (https://github.com/llvm/llvm-project.git 5dfcb3e5d1d16bb4f8fce52b3c089119ed977e7f)"} | ||
!10 = distinct !DISubprogram(name: "fun", scope: !1, file: !1, line: 1, type: !11, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !14) | ||
!11 = !DISubroutineType(types: !12) | ||
!12 = !{!13, !13, !13} | ||
!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) | ||
!14 = !{} | ||
!15 = !DILocalVariable(name: "a", arg: 1, scope: !10, file: !1, line: 1, type: !13) | ||
!16 = !DILocation(line: 0, scope: !10) | ||
!17 = !DILocalVariable(name: "b", arg: 2, scope: !10, file: !1, line: 1, type: !13) | ||
!18 = !DILocation(line: 3, column: 11, scope: !19) | ||
!19 = distinct !DILexicalBlock(scope: !10, file: !1, line: 3, column: 9) | ||
!20 = !DILocation(line: 3, column: 9, scope: !10) | ||
!21 = !DILocation(line: 4, column: 20, scope: !22) | ||
!22 = distinct !DILexicalBlock(scope: !19, file: !1, line: 3, column: 17) | ||
!23 = !DILocalVariable(name: "a1", scope: !22, file: !1, line: 4, type: !13) | ||
!24 = !DILocation(line: 0, scope: !22) | ||
!25 = !DILocation(line: 5, column: 21, scope: !22) | ||
!26 = !DILocalVariable(name: "a2", scope: !22, file: !1, line: 5, type: !13) | ||
!27 = !DILocalVariable(name: "ret", scope: !10, file: !1, line: 2, type: !13) | ||
!28 = !DILocation(line: 7, column: 5, scope: !22) | ||
!29 = !DILocation(line: 8, column: 20, scope: !30) | ||
!30 = distinct !DILexicalBlock(scope: !19, file: !1, line: 7, column: 12) | ||
!31 = !DILocalVariable(name: "b1", scope: !30, file: !1, line: 8, type: !13) | ||
!32 = !DILocation(line: 0, scope: !30) | ||
!33 = !DILocation(line: 9, column: 21, scope: !30) | ||
!34 = !DILocalVariable(name: "b2", scope: !30, file: !1, line: 9, type: !13) | ||
!35 = !DILocation(line: 0, scope: !19) | ||
!36 = !DILocation(line: 12, column: 5, scope: !10) |