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; RUN: opt < %s -loop-vectorize -mtriple=x86_64-unknown-linux -S -pass-remarks='loop-vectorize' 2>&1 | FileCheck -check-prefix=VECTORIZED %s
; 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
; 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
; This code has all the !dbg annotations needed to track source line information,
; but is missing the llvm.dbg.cu annotation. This prevents code generation from
; emitting debug info in the final output.
; RUN: llc -mtriple x86_64-pc-linux-gnu %s -o - | FileCheck -check-prefix=DEBUG-OUTPUT %s
; DEBUG-OUTPUT-NOT: .loc
; DEBUG-OUTPUT-NOT: {{.*}}.debug_info
; VECTORIZED: remark: vectorization-remarks.c:17:8: vectorized loop (vectorization factor: 4, unrolling interleave factor: 1)
; UNROLLED: remark: vectorization-remarks.c:17:8: unrolled with interleaving factor 4 (vectorization not beneficial)
; NONE: remark: vectorization-remarks.c:17:8: loop not vectorized: vector width and interleave count are explicitly set to 1
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define i32 @foo(i32 %n) #0 {
entry:
%diff = alloca i32, align 4
%cb = alloca [16 x i8], align 16
%cc = alloca [16 x i8], align 16
store i32 0, i32* %diff, align 4, !dbg !10, !tbaa !11
br label %for.body, !dbg !15
for.body: ; preds = %for.body, %entry
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%add8 = phi i32 [ 0, %entry ], [ %add, %for.body ], !dbg !19
%arrayidx = getelementptr inbounds [16 x i8], [16 x i8]* %cb, i64 0, i64 %indvars.iv, !dbg !19
%0 = load i8, i8* %arrayidx, align 1, !dbg !19, !tbaa !21
%conv = sext i8 %0 to i32, !dbg !19
%arrayidx2 = getelementptr inbounds [16 x i8], [16 x i8]* %cc, i64 0, i64 %indvars.iv, !dbg !19
%1 = load i8, i8* %arrayidx2, align 1, !dbg !19, !tbaa !21
%conv3 = sext i8 %1 to i32, !dbg !19
%sub = sub i32 %conv, %conv3, !dbg !19
%add = add nsw i32 %sub, %add8, !dbg !19
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !15
%exitcond = icmp eq i64 %indvars.iv.next, 16, !dbg !15
br i1 %exitcond, label %for.end, label %for.body, !dbg !15
for.end: ; preds = %for.body
store i32 %add, i32* %diff, align 4, !dbg !19, !tbaa !11
call void @ibar(i32* %diff) #2, !dbg !22
ret i32 0, !dbg !23
}
declare void @ibar(i32*) #1
!llvm.module.flags = !{!7, !8}
!llvm.ident = !{!9}
!1 = !MDFile(filename: "vectorization-remarks.c", directory: ".")
!2 = !{}
!3 = !{!4}
!4 = !MDSubprogram(name: "foo", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 6, file: !1, scope: !5, type: !6, function: i32 (i32)* @foo, variables: !2)
!5 = !MDFile(filename: "vectorization-remarks.c", directory: ".")
!6 = !MDSubroutineType(types: !2)
!7 = !{i32 2, !"Dwarf Version", i32 4}
!8 = !{i32 1, !"Debug Info Version", i32 3}
!9 = !{!"clang version 3.5.0 "}
!10 = !MDLocation(line: 8, column: 3, scope: !4)
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !13, i64 0}
!13 = !{!"omnipotent char", !14, i64 0}
!14 = !{!"Simple C/C++ TBAA"}
!15 = !MDLocation(line: 17, column: 8, scope: !16)
!16 = distinct !MDLexicalBlock(line: 17, column: 8, file: !1, scope: !17)
!17 = distinct !MDLexicalBlock(line: 17, column: 8, file: !1, scope: !18)
!18 = distinct !MDLexicalBlock(line: 17, column: 3, file: !1, scope: !4)
!19 = !MDLocation(line: 18, column: 5, scope: !20)
!20 = distinct !MDLexicalBlock(line: 17, column: 27, file: !1, scope: !18)
!21 = !{!13, !13, i64 0}
!22 = !MDLocation(line: 20, column: 3, scope: !4)
!23 = !MDLocation(line: 21, column: 3, scope: !4)
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