| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame^] | 1 | ; RUN: opt < %s -S -loop-unroll -unroll-runtime -unroll-count=2 -unroll-runtime-epilog=true | FileCheck %s -check-prefix=EPILOG |
| 2 | ; RUN: opt < %s -S -loop-unroll -unroll-runtime -unroll-count=2 -unroll-runtime-epilog=false | FileCheck %s -check-prefix=PROLOG |
| 3 | |
| 4 | ; RUN: opt < %s -S -passes='require<opt-remark-emit>,unroll' -unroll-runtime -unroll-count=2 -unroll-runtime-epilog=true | FileCheck %s -check-prefix=EPILOG |
| 5 | ; RUN: opt < %s -S -passes='require<opt-remark-emit>,unroll' -unroll-runtime -unroll-count=2 -unroll-runtime-epilog=false | FileCheck %s -check-prefix=PROLOG |
| 6 | |
| 7 | ; This tests that setting the unroll count works |
| 8 | |
| 9 | |
| 10 | ; EPILOG: for.body.preheader: |
| 11 | ; EPILOG: br i1 %1, label %for.end.loopexit.unr-lcssa, label %for.body.preheader.new, !dbg [[PH_LOC:![0-9]+]] |
| 12 | ; EPILOG: for.body: |
| 13 | ; EPILOG: br i1 %niter.ncmp.1, label %for.end.loopexit.unr-lcssa.loopexit, label %for.body, !dbg [[BODY_LOC:![0-9]+]] |
| 14 | ; EPILOG-NOT: br i1 %niter.ncmp.2, label %for.end.loopexit{{.*}}, label %for.body |
| 15 | ; EPILOG: for.body.epil.preheader: |
| 16 | ; EPILOG: br label %for.body.epil, !dbg [[BODY_LOC]] |
| 17 | ; EPILOG: for.body.epil: |
| 18 | ; EPILOG: br label %for.end.loopexit.epilog-lcssa, !dbg [[BODY_LOC]] |
| 19 | ; EPILOG: for.end.loopexit: |
| 20 | ; EPILOG: br label %for.end, !dbg [[EXIT_LOC:![0-9]+]] |
| 21 | |
| 22 | ; EPILOG-DAG: [[PH_LOC]] = !DILocation(line: 101, column: 1, scope: !{{.*}}) |
| 23 | ; EPILOG-DAG: [[BODY_LOC]] = !DILocation(line: 102, column: 1, scope: !{{.*}}) |
| 24 | ; EPILOG-DAG: [[EXIT_LOC]] = !DILocation(line: 103, column: 1, scope: !{{.*}}) |
| 25 | |
| 26 | ; PROLOG: for.body.preheader: |
| 27 | ; PROLOG: br {{.*}} label %for.body.prol.preheader, label %for.body.prol.loopexit, !dbg [[PH_LOC:![0-9]+]] |
| 28 | ; PROLOG: for.body.prol: |
| 29 | ; PROLOG: br label %for.body.prol.loopexit, !dbg [[BODY_LOC:![0-9]+]] |
| 30 | ; PROLOG: for.body.prol.loopexit: |
| 31 | ; PROLOG: br {{.*}} label %for.end.loopexit, label %for.body.preheader.new, !dbg [[PH_LOC]] |
| 32 | ; PROLOG: for.body: |
| 33 | ; PROLOG: br i1 %exitcond.1, label %for.end.loopexit.unr-lcssa, label %for.body, !dbg [[BODY_LOC]] |
| 34 | ; PROLOG-NOT: br i1 %exitcond.4, label %for.end.loopexit{{.*}}, label %for.body |
| 35 | |
| 36 | ; PROLOG-DAG: [[PH_LOC]] = !DILocation(line: 101, column: 1, scope: !{{.*}}) |
| 37 | ; PROLOG-DAG: [[BODY_LOC]] = !DILocation(line: 102, column: 1, scope: !{{.*}}) |
| 38 | |
| 39 | define i32 @test(i32* nocapture %a, i32 %n) nounwind uwtable readonly !dbg !6 { |
| 40 | entry: |
| 41 | %cmp1 = icmp eq i32 %n, 0, !dbg !7 |
| 42 | br i1 %cmp1, label %for.end, label %for.body, !dbg !7 |
| 43 | |
| 44 | for.body: ; preds = %for.body, %entry |
| 45 | %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] |
| 46 | %sum.02 = phi i32 [ %add, %for.body ], [ 0, %entry ] |
| 47 | %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv, !dbg !8 |
| 48 | %0 = load i32, i32* %arrayidx, align 4, !dbg !8 |
| 49 | %add = add nsw i32 %0, %sum.02, !dbg !8 |
| 50 | %indvars.iv.next = add i64 %indvars.iv, 1, !dbg !9 |
| 51 | %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !9 |
| 52 | %exitcond = icmp eq i32 %lftr.wideiv, %n, !dbg !9 |
| 53 | br i1 %exitcond, label %for.end, label %for.body, !dbg !9 |
| 54 | |
| 55 | for.end: ; preds = %for.body, %entry |
| 56 | %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ] |
| 57 | ret i32 %sum.0.lcssa, !dbg !10 |
| 58 | } |
| 59 | |
| 60 | !llvm.module.flags = !{!0, !1, !2} |
| 61 | !llvm.dbg.cu = !{!11} |
| 62 | !0 = !{i32 2, !"Dwarf Version", i32 4} |
| 63 | !1 = !{i32 2, !"Debug Info Version", i32 3} |
| 64 | !2 = !{i32 1, !"PIC Level", i32 2} |
| 65 | |
| 66 | !3 = !{} |
| 67 | !4 = !DISubroutineType(types: !3) |
| 68 | !5 = !DIFile(filename: "test.cpp", directory: "/tmp") |
| 69 | !6 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 99, type: !4, isLocal: false, isDefinition: true, scopeLine: 100, flags: DIFlagPrototyped, isOptimized: false, unit: !11, retainedNodes: !3) |
| 70 | !7 = !DILocation(line: 100, column: 1, scope: !6) |
| 71 | !8 = !DILocation(line: 101, column: 1, scope: !6) |
| 72 | !9 = !DILocation(line: 102, column: 1, scope: !6) |
| 73 | !10 = !DILocation(line: 103, column: 1, scope: !6) |
| 74 | !11 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang", |
| 75 | file: !5, |
| 76 | isOptimized: true, flags: "-O2", |
| 77 | splitDebugFilename: "abc.debug", emissionKind: 2) |