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