1; RUN: opt < %s -passes=loop-interchange -cache-line-size=64 -pass-remarks='loop-interchange' -pass-remarks-output=%t -S \ 2; RUN: -verify-dom-info -verify-loop-info | FileCheck %s 3; RUN: FileCheck -check-prefix=REMARK --input-file=%t %s 4 5 6target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 7 8@A = common global [100 x [100 x i64]] zeroinitializer 9 10;; for(int i=0;i<100;i++) 11;; for(int j=0;j<100;j++) 12;; A[j][i] = A[j][i]+k; 13 14; REMARK: Name: Interchanged 15; REMARK-NEXT: Function: interchange_01 16; CHECK: split 17 18define void @interchange_01(i64 %k, i64 %N) !dbg !5 { 19entry: 20 br label %for1.header 21 22for1.header: 23 %j23 = phi i64 [ 0, %entry ], [ %j.next24, %for1.inc10 ] 24 call void @llvm.dbg.value(metadata i64 %j, metadata !13, metadata !DIExpression()), !dbg !14 25 br label %for2 26 27for2: 28 %j = phi i64 [ %j.next, %for2 ], [ 0, %for1.header ] 29 call void @llvm.dbg.value(metadata i64 %j, metadata !13, metadata !DIExpression()), !dbg !14 30 %arrayidx5 = getelementptr inbounds [100 x [100 x i64]], ptr @A, i64 0, i64 %j, i64 %j23 31 %lv = load i64, ptr %arrayidx5 32 %add = add nsw i64 %lv, %k 33 store i64 %add, ptr %arrayidx5 34 %j.next = add nuw nsw i64 %j, 1 35 %exitcond = icmp eq i64 %j, 99 36 call void @llvm.dbg.value(metadata i64 %j, metadata !13, metadata !DIExpression()), !dbg !14 37 br i1 %exitcond, label %for1.inc10, label %for2 38 39for1.inc10: 40 %j.next24 = add nuw nsw i64 %j23, 1 41 call void @llvm.dbg.value(metadata i64 %j, metadata !13, metadata !DIExpression()), !dbg !14 42 %exitcond26 = icmp eq i64 %j23, 99 43 br i1 %exitcond26, label %for.end12, label %for1.header 44 45for.end12: 46 ret void 47} 48 49; Function Attrs: nounwind readnone speculatable 50declare void @llvm.dbg.value(metadata, metadata, metadata) 51 52!llvm.dbg.cu = !{!0} 53!llvm.module.flags = !{!3, !4} 54 55!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 56!1 = !DIFile(filename: "test.c", directory: "/test") 57!2 = !{} 58!3 = !{i32 2, !"Dwarf Version", i32 4} 59!4 = !{i32 2, !"Debug Info Version", i32 3} 60!5 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !12) 61!6 = !DISubroutineType(types: !7) 62!7 = !{null, !8, !8, !11} 63!8 = !DIDerivedType(tag: DW_TAG_restrict_type, baseType: !9) 64!9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 32, align: 32) 65!10 = !DIBasicType(name: "float", size: 32, align: 32, encoding: DW_ATE_float) 66!11 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 67!12 = !{!13} 68!13 = !DILocalVariable(name: "a", arg: 1, scope: !5, file: !1, line: 1, type: !8) 69!14 = !DILocation(line: 1, column: 27, scope: !5) 70