1 ; RUN: opt < %s -loop-vectorize -mtriple=x86_64-unknown-linux -S -pass-remarks='loop-vectorize' 2>&1 | FileCheck -check-prefix=VECTORIZED %s
2 ; RUN: opt < %s -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 -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 ; This code has all the !dbg annotations needed to track source line information,
6 ; but is missing the llvm.dbg.cu annotation. This prevents code generation from
7 ; emitting debug info in the final output.
8 ; RUN: llc -mtriple x86_64-pc-linux-gnu %s -o - | FileCheck -check-prefix=DEBUG-OUTPUT %s
9 ; DEBUG-OUTPUT-NOT: .loc
10 ; DEBUG-OUTPUT-NOT: {{.*}}.debug_info
12 ; VECTORIZED: remark: vectorization-remarks.c:17:8: vectorized loop (vectorization factor: 4, unrolling interleave factor: 1)
13 ; UNROLLED: remark: vectorization-remarks.c:17:8: unrolled with interleaving factor 4 (vectorization not beneficial)
14 ; NONE: remark: vectorization-remarks.c:17:8: loop not vectorized: vector width and interleave count are explicitly set to 1
16 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
18 define i32 @foo(i32 %n) #0 {
20 %diff = alloca i32, align 4
21 %cb = alloca [16 x i8], align 16
22 %cc = alloca [16 x i8], align 16
23 store i32 0, i32* %diff, align 4, !dbg !10, !tbaa !11
24 br label %for.body, !dbg !15
26 for.body: ; preds = %for.body, %entry
27 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
28 %add8 = phi i32 [ 0, %entry ], [ %add, %for.body ], !dbg !19
29 %arrayidx = getelementptr inbounds [16 x i8], [16 x i8]* %cb, i64 0, i64 %indvars.iv, !dbg !19
30 %0 = load i8, i8* %arrayidx, align 1, !dbg !19, !tbaa !21
31 %conv = sext i8 %0 to i32, !dbg !19
32 %arrayidx2 = getelementptr inbounds [16 x i8], [16 x i8]* %cc, i64 0, i64 %indvars.iv, !dbg !19
33 %1 = load i8, i8* %arrayidx2, align 1, !dbg !19, !tbaa !21
34 %conv3 = sext i8 %1 to i32, !dbg !19
35 %sub = sub i32 %conv, %conv3, !dbg !19
36 %add = add nsw i32 %sub, %add8, !dbg !19
37 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !15
38 %exitcond = icmp eq i64 %indvars.iv.next, 16, !dbg !15
39 br i1 %exitcond, label %for.end, label %for.body, !dbg !15
41 for.end: ; preds = %for.body
42 store i32 %add, i32* %diff, align 4, !dbg !19, !tbaa !11
43 call void @ibar(i32* %diff) #2, !dbg !22
47 declare void @ibar(i32*) #1
49 !llvm.module.flags = !{!7, !8}
52 !1 = !{!"vectorization-remarks.c", !"."}
55 !4 = !{!"0x2e\00foo\00foo\00\005\000\001\000\006\00256\001\006", !1, !5, !6, null, i32 (i32)* @foo, null, null, !2} ; [ DW_TAG_subprogram ] [line 5] [def] [scope 6] [foo]
56 !5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [./vectorization-remarks.c]
57 !6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
58 !7 = !{i32 2, !"Dwarf Version", i32 4}
59 !8 = !{i32 1, !"Debug Info Version", i32 2}
60 !9 = !{!"clang version 3.5.0 "}
61 !10 = !MDLocation(line: 8, column: 3, scope: !4)
62 !11 = !{!12, !12, i64 0}
63 !12 = !{!"int", !13, i64 0}
64 !13 = !{!"omnipotent char", !14, i64 0}
65 !14 = !{!"Simple C/C++ TBAA"}
66 !15 = !MDLocation(line: 17, column: 8, scope: !16)
67 !16 = !{!"0xb\0017\008\002", !1, !17} ; [ DW_TAG_lexical_block ] [./vectorization-remarks.c]
68 !17 = !{!"0xb\0017\008\001", !1, !18} ; [ DW_TAG_lexical_block ] [./vectorization-remarks.c]
69 !18 = !{!"0xb\0017\003\000", !1, !4} ; [ DW_TAG_lexical_block ] [./vectorization-remarks.c]
70 !19 = !MDLocation(line: 18, column: 5, scope: !20)
71 !20 = !{!"0xb\0017\0027\000", !1, !18} ; [ DW_TAG_lexical_block ] [./vectorization-remarks.c]
72 !21 = !{!13, !13, i64 0}
73 !22 = !MDLocation(line: 20, column: 3, scope: !4)
74 !23 = !MDLocation(line: 21, column: 3, scope: !4)