1 ; RUN: opt < %s -passes=loop-vectorize -mtriple=x86_64-unknown-linux -S -pass-remarks='loop-vectorize' 2>&1 | FileCheck -check-prefix=VECTORIZED %s
2 ; RUN: opt < %s -passes=loop-vectorize -force-vector-width=1 -force-vector-interleave=4 -mtriple=x86_64-unknown-linux -S -pass-remarks='loop-vectorize' 2>&1 | FileCheck -check-prefix=UNROLLED %s
3 ; RUN: opt < %s -passes=loop-vectorize -force-vector-width=1 -force-vector-interleave=1 -mtriple=x86_64-unknown-linux -S -pass-remarks-analysis='loop-vectorize' 2>&1 | FileCheck -check-prefix=NONE %s
5 ; RUN: llc < %s -mtriple x86_64-pc-linux-gnu -o - | FileCheck -check-prefix=DEBUG-OUTPUT %s
6 ; DEBUG-OUTPUT-NOT: .loc
7 ; DEBUG-OUTPUT-NOT: {{.*}}.debug_info
9 ; VECTORIZED: remark: vectorization-remarks.c:17:8: vectorized loop (vectorization width: 4, interleaved count: 2)
10 ; UNROLLED: remark: vectorization-remarks.c:17:8: interleaved loop (interleaved count: 4)
11 ; NONE: remark: vectorization-remarks.c:17:8: loop not vectorized: vectorization and interleaving are explicitly disabled, or the loop has already been vectorized
13 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
15 define i32 @foo(i32 %n) #0 !dbg !4 {
17 %diff = alloca i32, align 4
18 %cb = alloca [16 x i8], align 16
19 %cc = alloca [16 x i8], align 16
20 store i32 0, ptr %diff, align 4, !tbaa !11
23 for.body: ; preds = %for.body, %entry
24 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
25 %add8 = phi i32 [ 0, %entry ], [ %add, %for.body ]
26 %arrayidx = getelementptr inbounds [16 x i8], ptr %cb, i64 0, i64 %indvars.iv
27 %0 = load i8, ptr %arrayidx, align 1, !tbaa !21
28 %conv = sext i8 %0 to i32
29 %arrayidx2 = getelementptr inbounds [16 x i8], ptr %cc, i64 0, i64 %indvars.iv
30 %1 = load i8, ptr %arrayidx2, align 1, !tbaa !21
31 %conv3 = sext i8 %1 to i32
32 %sub = sub i32 %conv, %conv3
33 %add = add nsw i32 %sub, %add8
34 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
35 %exitcond = icmp eq i64 %indvars.iv.next, 16
36 br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !25
38 for.end: ; preds = %for.body
39 store i32 %add, ptr %diff, align 4, !tbaa !11
40 call void @ibar(ptr %diff) #2
44 declare void @ibar(ptr) #1
46 !llvm.module.flags = !{!7, !8}
50 !1 = !DIFile(filename: "vectorization-remarks.c", directory: ".")
53 !4 = distinct !DISubprogram(name: "foo", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !24, scopeLine: 6, file: !1, scope: !5, type: !6, retainedNodes: !2)
54 !5 = !DIFile(filename: "vectorization-remarks.c", directory: ".")
55 !6 = !DISubroutineType(types: !2)
56 !7 = !{i32 2, !"Dwarf Version", i32 4}
57 !8 = !{i32 1, !"Debug Info Version", i32 3}
58 !9 = !{!"clang version 3.5.0 "}
59 !10 = !DILocation(line: 8, column: 3, scope: !4)
60 !11 = !{!12, !12, i64 0}
61 !12 = !{!"int", !13, i64 0}
62 !13 = !{!"omnipotent char", !14, i64 0}
63 !14 = !{!"Simple C/C++ TBAA"}
64 !15 = !DILocation(line: 17, column: 8, scope: !16)
65 !16 = distinct !DILexicalBlock(line: 17, column: 8, file: !1, scope: !17)
66 !17 = distinct !DILexicalBlock(line: 17, column: 8, file: !1, scope: !18)
67 !18 = distinct !DILexicalBlock(line: 17, column: 3, file: !1, scope: !4)
68 !19 = !DILocation(line: 18, column: 5, scope: !20)
69 !20 = distinct !DILexicalBlock(line: 17, column: 27, file: !1, scope: !18)
70 !21 = !{!13, !13, i64 0}
71 !22 = !DILocation(line: 20, column: 3, scope: !4)
72 !23 = !DILocation(line: 21, column: 3, scope: !4)
73 !24 = distinct !DICompileUnit(language: DW_LANG_C89, file: !1, emissionKind: NoDebug)