1 ; RUN: opt -loop-simplify -loop-distribute -enable-loop-distribute -S -pass-remarks-missed=loop-distribute \ 2 ; RUN: -pass-remarks-analysis=loop-distribute \ 3 ; RUN: -pass-remarks-with-hotness < %s 2>&1 | FileCheck %s --check-prefix=HOTNESS 4 ; RUN: opt -loop-simplify -loop-distribute -enable-loop-distribute -S -pass-remarks-missed=loop-distribute \ 5 ; RUN: -pass-remarks-analysis=loop-distribute \ 6 ; RUN: < %s 2>&1 | FileCheck %s --check-prefix=NO_HOTNESS 7 8 ; RUN: opt -passes='loop-simplify,require<aa>,loop-distribute' -S -pass-remarks-missed=loop-distribute \ 9 ; RUN: -pass-remarks-analysis=loop-distribute \ 10 ; RUN: -pass-remarks-with-hotness < %s 2>&1 | FileCheck %s --check-prefix=HOTNESS 11 ; RUN: opt -passes='loop-simplify,require<aa>,loop-distribute' -S -pass-remarks-missed=loop-distribute \ 12 ; RUN: -pass-remarks-analysis=loop-distribute \ 13 ; RUN: < %s 2>&1 | FileCheck %s --check-prefix=NO_HOTNESS 14 15 ; This is the input program: 16 ; 17 ; 1 void forced (char *A, char *B, char *C, int N) { 18 ; 2 #pragma clang loop distribute(enable) 19 ; 3 for(int i = 0; i < N; i++) { 20 ; 4 A[i] = B[i] * C[i]; 21 ; 5 } 22 ; 6 } 23 24 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 25 target triple = "x86_64-apple-macosx10.11.0" 26 27 ; HOTNESS: remark: /tmp/t.c:3:3: loop not distributed: use -Rpass-analysis=loop-distribute for more info (hotness: 300) 28 ; HOTNESS: remark: /tmp/t.c:3:3: loop not distributed: memory operations are safe for vectorization (hotness: 300) 29 ; NO_HOTNESS: remark: /tmp/t.c:3:3: loop not distributed: use -Rpass-analysis=loop-distribute for more info{{$}} 30 ; NO_HOTNESS: remark: /tmp/t.c:3:3: loop not distributed: memory operations are safe for vectorization{{$}} 31 32 define void @forced(i8* %A, i8* %B, i8* %C, i32 %N) !dbg !7 !prof !22 { 33 entry: 34 %cmp12 = icmp sgt i32 %N, 0, !dbg !9 35 br i1 %cmp12, label %ph, label %for.cond.cleanup, !dbg !10, !prof !23 36 37 ph: 38 br label %for.body 39 40 for.body: 41 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %ph ] 42 %arrayidx = getelementptr inbounds i8, i8* %B, i64 %indvars.iv, !dbg !12 43 %0 = load i8, i8* %arrayidx, align 1, !dbg !12, !tbaa !13 44 %arrayidx2 = getelementptr inbounds i8, i8* %C, i64 %indvars.iv, !dbg !16 45 %1 = load i8, i8* %arrayidx2, align 1, !dbg !16, !tbaa !13 46 %mul = mul i8 %1, %0, !dbg !17 47 %arrayidx6 = getelementptr inbounds i8, i8* %A, i64 %indvars.iv, !dbg !18 48 store i8 %mul, i8* %arrayidx6, align 1, !dbg !19, !tbaa !13 49 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !10 50 %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !10 51 %exitcond = icmp eq i32 %lftr.wideiv, %N, !dbg !10 52 br i1 %exitcond, label %for.cond.cleanup, label %for.body, !dbg !10, !llvm.loop !20, !prof !24 53 54 for.cond.cleanup: 55 ret void, !dbg !11 56 } 57 58 !llvm.dbg.cu = !{!0} 59 !llvm.module.flags = !{!3, !4} 60 61 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 267633) (llvm/trunk 267675)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2) 62 !1 = !DIFile(filename: "/tmp/t.c", directory: "/tmp") 63 !2 = !{} 64 !3 = !{i32 2, !"Dwarf Version", i32 2} 65 !4 = !{i32 2, !"Debug Info Version", i32 3} 66 !7 = distinct !DISubprogram(name: "forced", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !2) 67 !8 = !DISubroutineType(types: !2) 68 !9 = !DILocation(line: 3, column: 20, scope: !7) 69 !10 = !DILocation(line: 3, column: 3, scope: !7) 70 !11 = !DILocation(line: 6, column: 1, scope: !7) 71 !12 = !DILocation(line: 4, column: 12, scope: !7) 72 !13 = !{!14, !14, i64 0} 73 !14 = !{!"omnipotent char", !15, i64 0} 74 !15 = !{!"Simple C/C++ TBAA"} 75 !16 = !DILocation(line: 4, column: 19, scope: !7) 76 !17 = !DILocation(line: 4, column: 17, scope: !7) 77 !18 = !DILocation(line: 4, column: 5, scope: !7) 78 !19 = !DILocation(line: 4, column: 10, scope: !7) 79 !20 = distinct !{!20, !21} 80 !21 = !{!"llvm.loop.distribute.enable", i1 true} 81 !22 = !{!"function_entry_count", i64 3} 82 !23 = !{!"branch_weights", i32 99, i32 1} 83 !24 = !{!"branch_weights", i32 1, i32 99} 84
