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
6 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
8 @A = common global [100 x [100 x i64]] zeroinitializer
10 ;; for(int i=0;i<100;i++)
11 ;; for(int j=0;j<100;j++)
12 ;; A[j][i] = A[j][i]+k;
14 ; REMARK: Name: Interchanged
15 ; REMARK-NEXT: Function: interchange_01
18 define void @interchange_01(i64 %k, i64 %N) !dbg !5 {
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
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
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
49 ; Function Attrs: nounwind readnone speculatable
50 declare void @llvm.dbg.value(metadata, metadata, metadata)
53 !llvm.module.flags = !{!3, !4}
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")
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)
68 !13 = !DILocalVariable(name: "a", arg: 1, scope: !5, file: !1, line: 1, type: !8)
69 !14 = !DILocation(line: 1, column: 27, scope: !5)