160 lines
7.6 KiB
LLVM
160 lines
7.6 KiB
LLVM
; RUN: opt -S -loop-rotate < %s | FileCheck %s
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; RUN: opt -S -loop-rotate -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s
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declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
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declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
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define i32 @tak(i32 %x, i32 %y, i32 %z) nounwind ssp !dbg !0 {
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; CHECK-LABEL: define i32 @tak(
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; CHECK: entry
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 %x
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; CHECK: tail call void @llvm.dbg.value(metadata i32 %call
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entry:
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br label %tailrecurse
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tailrecurse: ; preds = %if.then, %entry
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%x.tr = phi i32 [ %x, %entry ], [ %call, %if.then ]
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%y.tr = phi i32 [ %y, %entry ], [ %call9, %if.then ]
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%z.tr = phi i32 [ %z, %entry ], [ %call14, %if.then ]
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tail call void @llvm.dbg.value(metadata i32 %x.tr, metadata !6, metadata !DIExpression()), !dbg !7
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tail call void @llvm.dbg.value(metadata i32 %y.tr, metadata !8, metadata !DIExpression()), !dbg !9
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tail call void @llvm.dbg.value(metadata i32 %z.tr, metadata !10, metadata !DIExpression()), !dbg !11
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%cmp = icmp slt i32 %y.tr, %x.tr, !dbg !12
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br i1 %cmp, label %if.then, label %if.end, !dbg !12
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if.then: ; preds = %tailrecurse
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%sub = sub nsw i32 %x.tr, 1, !dbg !14
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%call = tail call i32 @tak(i32 %sub, i32 %y.tr, i32 %z.tr), !dbg !14
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%sub6 = sub nsw i32 %y.tr, 1, !dbg !14
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%call9 = tail call i32 @tak(i32 %sub6, i32 %z.tr, i32 %x.tr), !dbg !14
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%sub11 = sub nsw i32 %z.tr, 1, !dbg !14
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%call14 = tail call i32 @tak(i32 %sub11, i32 %x.tr, i32 %y.tr), !dbg !14
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br label %tailrecurse
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if.end: ; preds = %tailrecurse
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br label %return, !dbg !16
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return: ; preds = %if.end
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ret i32 %z.tr, !dbg !17
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}
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define i32 @tak2(i32 %x, i32 %y, i32 %z) nounwind ssp !dbg !21 {
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; CHECK-LABEL: define i32 @tak2(
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; CHECK: entry
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; CHECK: tail call void @llvm.dbg.value(metadata i32 %x.tr
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; CHECK: tail call void @llvm.dbg.value(metadata i32 undef
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entry:
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br label %tailrecurse
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tailrecurse: ; preds = %if.then, %entry
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%x.tr = phi i32 [ %x, %entry ], [ %call, %if.then ]
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%y.tr = phi i32 [ %y, %entry ], [ %call9, %if.then ]
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%z.tr = phi i32 [ %z, %entry ], [ %call14, %if.then ]
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%cmp = icmp slt i32 %y.tr, %x.tr, !dbg !22
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br i1 %cmp, label %if.then, label %if.end, !dbg !22
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if.then: ; preds = %tailrecurse
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tail call void @llvm.dbg.value(metadata i32 %x.tr, metadata !36, metadata !DIExpression()), !dbg !37
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tail call void @llvm.dbg.value(metadata i32 %y.tr, metadata !38, metadata !DIExpression()), !dbg !39
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tail call void @llvm.dbg.value(metadata i32 %z.tr, metadata !40, metadata !DIExpression()), !dbg !41
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%sub = sub nsw i32 %x.tr, 1, !dbg !24
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%call = tail call i32 @tak(i32 %sub, i32 %y.tr, i32 %z.tr), !dbg !24
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%sub6 = sub nsw i32 %y.tr, 1, !dbg !24
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%call9 = tail call i32 @tak(i32 %sub6, i32 %z.tr, i32 %x.tr), !dbg !24
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%sub11 = sub nsw i32 %z.tr, 1, !dbg !24
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%call14 = tail call i32 @tak(i32 %sub11, i32 %x.tr, i32 %y.tr), !dbg !24
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br label %tailrecurse
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if.end: ; preds = %tailrecurse
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tail call void @llvm.dbg.value(metadata i32 %x.tr, metadata !36, metadata !DIExpression()), !dbg !37
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tail call void @llvm.dbg.value(metadata i32 %y.tr, metadata !38, metadata !DIExpression()), !dbg !39
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tail call void @llvm.dbg.value(metadata i32 %z.tr, metadata !40, metadata !DIExpression()), !dbg !41
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br label %return, !dbg !26
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return: ; preds = %if.end
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ret i32 %z.tr, !dbg !27
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}
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@channelColumns = external global i64
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@horzPlane = external global i8*, align 8
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define void @FindFreeHorzSeg(i64 %startCol, i64 %row, i64* %rowStart) {
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; Ensure that the loop increment basic block is rotated into the tail of the
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; body, even though it contains a debug intrinsic call.
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; CHECK-LABEL: define void @FindFreeHorzSeg(
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; CHECK: %dec = add
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; CHECK-NEXT: tail call void @llvm.dbg.value
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; CHECK: %cmp = icmp
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; CHECK: br i1 %cmp
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; CHECK: phi i64 [ %{{[^,]*}}, %{{[^,]*}} ]
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; CHECK-NEXT: br label %for.end
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entry:
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br label %for.cond
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for.cond:
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%i.0 = phi i64 [ %startCol, %entry ], [ %dec, %for.inc ]
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%cmp = icmp eq i64 %i.0, 0
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br i1 %cmp, label %for.end, label %for.body
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for.body:
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%0 = load i64, i64* @channelColumns, align 8
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%mul = mul i64 %0, %row
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%add = add i64 %mul, %i.0
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%1 = load i8*, i8** @horzPlane, align 8
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%arrayidx = getelementptr inbounds i8, i8* %1, i64 %add
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%2 = load i8, i8* %arrayidx, align 1
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%tobool = icmp eq i8 %2, 0
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br i1 %tobool, label %for.inc, label %for.end
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for.inc:
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%dec = add i64 %i.0, -1
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tail call void @llvm.dbg.value(metadata i64 %dec, metadata !DILocalVariable(scope: !0), metadata !DIExpression()), !dbg !DILocation(scope: !0)
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br label %for.cond
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for.end:
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%add1 = add i64 %i.0, 1
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store i64 %add1, i64* %rowStart, align 8
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ret void
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}
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!llvm.module.flags = !{!20}
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!llvm.dbg.cu = !{!2}
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!0 = distinct !DISubprogram(name: "tak", line: 32, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !18, scope: !1, type: !3)
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!1 = !DIFile(filename: "/Volumes/Lalgate/cj/llvm/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame/recursive.c", directory: "/Volumes/Lalgate/cj/D/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame")
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 125492)", isOptimized: true, emissionKind: FullDebug, file: !18)
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!3 = !DISubroutineType(types: !4)
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!4 = !{!5}
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!5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!6 = !DILocalVariable(name: "x", line: 32, arg: 1, scope: !0, file: !1, type: !5)
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!7 = !DILocation(line: 32, column: 13, scope: !0)
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!8 = !DILocalVariable(name: "y", line: 32, arg: 2, scope: !0, file: !1, type: !5)
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!9 = !DILocation(line: 32, column: 20, scope: !0)
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!10 = !DILocalVariable(name: "z", line: 32, arg: 3, scope: !0, file: !1, type: !5)
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!11 = !DILocation(line: 32, column: 27, scope: !0)
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!12 = !DILocation(line: 33, column: 3, scope: !13)
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!13 = distinct !DILexicalBlock(line: 32, column: 30, file: !18, scope: !0)
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!14 = !DILocation(line: 34, column: 5, scope: !15)
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!15 = distinct !DILexicalBlock(line: 33, column: 14, file: !18, scope: !13)
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!16 = !DILocation(line: 36, column: 3, scope: !13)
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!17 = !DILocation(line: 37, column: 1, scope: !13)
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!18 = !DIFile(filename: "/Volumes/Lalgate/cj/llvm/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame/recursive.c", directory: "/Volumes/Lalgate/cj/D/projects/llvm-test/SingleSource/Benchmarks/BenchmarkGame")
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!20 = !{i32 1, !"Debug Info Version", i32 3}
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!21 = distinct !DISubprogram(name: "tak", line: 32, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !18, scope: !1, type: !3)
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!22 = !DILocation(line: 33, column: 3, scope: !23)
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!23 = distinct !DILexicalBlock(line: 32, column: 30, file: !18, scope: !21)
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!24 = !DILocation(line: 34, column: 5, scope: !25)
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!25 = distinct !DILexicalBlock(line: 33, column: 14, file: !18, scope: !23)
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!26 = !DILocation(line: 36, column: 3, scope: !23)
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!27 = !DILocation(line: 37, column: 1, scope: !23)
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!36 = !DILocalVariable(name: "x", line: 32, arg: 1, scope: !21, file: !1, type: !5)
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!37 = !DILocation(line: 32, column: 13, scope: !21)
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!38 = !DILocalVariable(name: "y", line: 32, arg: 2, scope: !21, file: !1, type: !5)
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!39 = !DILocation(line: 32, column: 20, scope: !21)
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!40 = !DILocalVariable(name: "z", line: 32, arg: 3, scope: !21, file: !1, type: !5)
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!41 = !DILocation(line: 32, column: 27, scope: !21)
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