75 lines
3.6 KiB
LLVM
75 lines
3.6 KiB
LLVM
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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
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; 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
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; 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
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; RUN: llc < %s -mtriple x86_64-pc-linux-gnu -o - | FileCheck -check-prefix=DEBUG-OUTPUT %s
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; DEBUG-OUTPUT-NOT: .loc
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; DEBUG-OUTPUT-NOT: {{.*}}.debug_info
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; VECTORIZED: remark: vectorization-remarks.c:17:8: vectorized loop (vectorization width: 4, interleaved count: 1)
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; UNROLLED: remark: vectorization-remarks.c:17:8: interleaved loop (interleaved count: 4)
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; NONE: remark: vectorization-remarks.c:17:8: loop not vectorized: vectorization and interleaving are explicitly disabled, or the loop has already been vectorized
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define i32 @foo(i32 %n) #0 !dbg !4 {
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entry:
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%diff = alloca i32, align 4
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%cb = alloca [16 x i8], align 16
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%cc = alloca [16 x i8], align 16
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store i32 0, i32* %diff, align 4, !tbaa !11
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%add8 = phi i32 [ 0, %entry ], [ %add, %for.body ]
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%arrayidx = getelementptr inbounds [16 x i8], [16 x i8]* %cb, i64 0, i64 %indvars.iv
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%0 = load i8, i8* %arrayidx, align 1, !tbaa !21
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%conv = sext i8 %0 to i32
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%arrayidx2 = getelementptr inbounds [16 x i8], [16 x i8]* %cc, i64 0, i64 %indvars.iv
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%1 = load i8, i8* %arrayidx2, align 1, !tbaa !21
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%conv3 = sext i8 %1 to i32
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%sub = sub i32 %conv, %conv3
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%add = add nsw i32 %sub, %add8
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv.next, 16
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br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !25
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for.end: ; preds = %for.body
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store i32 %add, i32* %diff, align 4, !tbaa !11
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call void @ibar(i32* %diff) #2
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ret i32 0
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}
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declare void @ibar(i32*) #1
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!llvm.module.flags = !{!7, !8}
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!llvm.ident = !{!9}
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!llvm.dbg.cu = !{!24}
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!1 = !DIFile(filename: "vectorization-remarks.c", directory: ".")
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!2 = !{}
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!3 = !{!4}
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!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)
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!5 = !DIFile(filename: "vectorization-remarks.c", directory: ".")
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!6 = !DISubroutineType(types: !2)
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 1, !"Debug Info Version", i32 3}
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!9 = !{!"clang version 3.5.0 "}
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!10 = !DILocation(line: 8, column: 3, scope: !4)
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!11 = !{!12, !12, i64 0}
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!12 = !{!"int", !13, i64 0}
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!13 = !{!"omnipotent char", !14, i64 0}
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!14 = !{!"Simple C/C++ TBAA"}
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!15 = !DILocation(line: 17, column: 8, scope: !16)
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!16 = distinct !DILexicalBlock(line: 17, column: 8, file: !1, scope: !17)
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!17 = distinct !DILexicalBlock(line: 17, column: 8, file: !1, scope: !18)
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!18 = distinct !DILexicalBlock(line: 17, column: 3, file: !1, scope: !4)
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!19 = !DILocation(line: 18, column: 5, scope: !20)
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!20 = distinct !DILexicalBlock(line: 17, column: 27, file: !1, scope: !18)
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!21 = !{!13, !13, i64 0}
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!22 = !DILocation(line: 20, column: 3, scope: !4)
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!23 = !DILocation(line: 21, column: 3, scope: !4)
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!24 = distinct !DICompileUnit(language: DW_LANG_C89, file: !1, emissionKind: NoDebug)
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!25 = !{!25, !15}
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