| ; RUN: opt %loadPolly -polly-opt-isl -polly-reschedule=0 -polly-pragma-based-opts=1 -disable-output < %s 2>&1 | FileCheck %s --match-full-lines |
| ; |
| ; CHECK: warning: distribute_illegal.c:1:42: not applying loop fission/distribution: cannot ensure semantic equivalence due to possible dependency violations |
| ; |
| ; void foo(double *A,double *B) { |
| ; for (int i = 1; i < 128; ++i) { |
| ; A[i] = i; |
| ; B[i] = A[i+1]; |
| ; } |
| ; } |
| |
| source_filename = "distribute_illegal.c" |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define dso_local void @foo(double* %A, double* %B) #0 !dbg !7 { |
| entry: |
| call void @llvm.dbg.value(metadata double* %A, metadata !13, metadata !DIExpression()), !dbg !18 |
| call void @llvm.dbg.value(metadata double* %B, metadata !14, metadata !DIExpression()), !dbg !18 |
| call void @llvm.dbg.value(metadata i32 1, metadata !15, metadata !DIExpression()), !dbg !19 |
| br label %for.cond, !dbg !20 |
| |
| for.cond: |
| %i.0 = phi i32 [ 1, %entry ], [ %inc, %for.body ], !dbg !19 |
| call void @llvm.dbg.value(metadata i32 %i.0, metadata !15, metadata !DIExpression()), !dbg !19 |
| %cmp = icmp slt i32 %i.0, 128, !dbg !21 |
| br i1 %cmp, label %for.body, label %for.end, !dbg !23 |
| |
| for.body: |
| %conv = sitofp i32 %i.0 to double, !dbg !24 |
| %idxprom = sext i32 %i.0 to i64, !dbg !26 |
| %arrayidx = getelementptr inbounds double, double* %A, i64 %idxprom, !dbg !26 |
| store double %conv, double* %arrayidx, align 8, !dbg !27, !tbaa !28 |
| |
| %add = add nsw i32 %i.0, 1, !dbg !32 |
| %idxprom1 = sext i32 %add to i64, !dbg !33 |
| %arrayidx2 = getelementptr inbounds double, double* %A, i64 %idxprom1, !dbg !33 |
| %0 = load double, double* %arrayidx2, align 8, !dbg !33, !tbaa !28 |
| %idxprom3 = sext i32 %i.0 to i64, !dbg !34 |
| %arrayidx4 = getelementptr inbounds double, double* %B, i64 %idxprom3, !dbg !34 |
| store double %0, double* %arrayidx4, align 8, !dbg !35, !tbaa !28 |
| |
| %inc = add nsw i32 %i.0, 1, !dbg !36 |
| call void @llvm.dbg.value(metadata i32 %inc, metadata !15, metadata !DIExpression()), !dbg !19 |
| br label %for.cond, !dbg !37, !llvm.loop !38 |
| |
| for.end: |
| ret void, !dbg !41 |
| } |
| |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #2 |
| |
| declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #2 |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { nounwind uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } |
| attributes #1 = { nofree nosync nounwind readnone speculatable willreturn } |
| attributes #2 = { argmemonly nofree nosync nounwind willreturn } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!2, !3, !4, !5} |
| !llvm.ident = !{!6} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 14.0.0 (/home/meinersbur/src/llvm-project/clang 81189783049d2b93f653c121d3731fd1732a3916)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) |
| !1 = !DIFile(filename: "distribute_illegal.c", directory: "/path/to") |
| !2 = !{i32 7, !"Dwarf Version", i32 4} |
| !3 = !{i32 2, !"Debug Info Version", i32 3} |
| !4 = !{i32 1, !"wchar_size", i32 4} |
| !5 = !{i32 7, !"uwtable", i32 1} |
| !6 = !{!"clang version 14.0.0 (/home/meinersbur/src/llvm-project/clang 81189783049d2b93f653c121d3731fd1732a3916)"} |
| !7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !8, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !12) |
| !8 = !DISubroutineType(types: !9) |
| !9 = !{null, !10, !10} |
| !10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64) |
| !11 = !DIBasicType(name: "double", size: 64, encoding: DW_ATE_float) |
| !12 = !{!13, !14, !15} |
| !13 = !DILocalVariable(name: "A", arg: 1, scope: !7, file: !1, line: 1, type: !10) |
| !14 = !DILocalVariable(name: "B", arg: 2, scope: !7, file: !1, line: 1, type: !10) |
| !15 = !DILocalVariable(name: "i", scope: !16, file: !1, line: 2, type: !17) |
| !16 = distinct !DILexicalBlock(scope: !7, file: !1, line: 2, column: 3) |
| !17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !18 = !DILocation(line: 0, scope: !7) |
| !19 = !DILocation(line: 0, scope: !16) |
| !20 = !DILocation(line: 2, column: 8, scope: !16) |
| !21 = !DILocation(line: 2, column: 21, scope: !22) |
| !22 = distinct !DILexicalBlock(scope: !16, file: !1, line: 2, column: 3) |
| !23 = !DILocation(line: 2, column: 3, scope: !16) |
| !24 = !DILocation(line: 3, column: 12, scope: !25) |
| !25 = distinct !DILexicalBlock(scope: !22, file: !1, line: 2, column: 33) |
| !26 = !DILocation(line: 3, column: 5, scope: !25) |
| !27 = !DILocation(line: 3, column: 10, scope: !25) |
| !28 = !{!29, !29, i64 0} |
| !29 = !{!"double", !30, i64 0} |
| !30 = !{!"omnipotent char", !31, i64 0} |
| !31 = !{!"Simple C/C++ TBAA"} |
| !32 = !DILocation(line: 4, column: 15, scope: !25) |
| !33 = !DILocation(line: 4, column: 12, scope: !25) |
| !34 = !DILocation(line: 4, column: 5, scope: !25) |
| !35 = !DILocation(line: 4, column: 10, scope: !25) |
| !36 = !DILocation(line: 2, column: 28, scope: !22) |
| !37 = !DILocation(line: 2, column: 3, scope: !22) |
| !38 = distinct !{!38, !23, !39, !40, !100, !101} |
| !39 = !DILocation(line: 5, column: 3, scope: !16) |
| !40 = !{!"llvm.loop.mustprogress"} |
| !41 = !DILocation(line: 6, column: 1, scope: !7) |
| !100 = !{!"llvm.loop.distribute.enable"} |
| !101 = !{!"llvm.loop.distribute.loc", !102} |
| !102 = !DILocation(line: 1, column: 42, scope: !16) |