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| author | Renato Golin <renato.golin@linaro.org> | 2013-10-24 15:11:03 +0000 |
|---|---|---|
| committer | Renato Golin <renato.golin@linaro.org> | 2013-10-24 15:11:03 +0000 |
| commit | 93fd763184aba63da67bc6554379d202671d7b52 (patch) | |
| tree | 3d6f554271736319142d882e84187c69984d757a /test/Transforms/LoopVectorize | |
| parent | 96b40055489a044a1815d5316f8b865794dd7550 (diff) | |
| download | llvm-93fd763184aba63da67bc6554379d202671d7b52.tar.gz llvm-93fd763184aba63da67bc6554379d202671d7b52.tar.bz2 llvm-93fd763184aba63da67bc6554379d202671d7b52.tar.xz | |
Fix broken builds by moving test to x86 dir
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193351 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/LoopVectorize')
| -rw-r--r-- | test/Transforms/LoopVectorize/X86/already-vectorized.ll | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/test/Transforms/LoopVectorize/X86/already-vectorized.ll b/test/Transforms/LoopVectorize/X86/already-vectorized.ll new file mode 100644 index 0000000000..885418c0fd --- /dev/null +++ b/test/Transforms/LoopVectorize/X86/already-vectorized.ll @@ -0,0 +1,46 @@ +; RUN: opt < %s -debug-only=loop-vectorize -O3 -S 2>&1 | FileCheck %s +; REQUIRES: asserts +; We want to make sure that we don't even try to vectorize loops again +; The vectorizer used to mark the un-vectorized loop only as already vectorized +; thus, trying to vectorize the vectorized loop again + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +@a = external global [255 x i32] + +; Function Attrs: nounwind readonly uwtable +define i32 @vect() { +; CHECK: LV: Checking a loop in "vect" +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry +; We need to make sure we did vectorize the loop +; CHECK: LV: Found a loop: for.body +; CHECK: LV: We can vectorize this loop! + %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] + %red.05 = phi i32 [ 0, %entry ], [ %add, %for.body ] + %arrayidx = getelementptr inbounds [255 x i32]* @a, i64 0, i64 %indvars.iv + %0 = load i32* %arrayidx, align 4 + %add = add nsw i32 %0, %red.05 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + %exitcond = icmp eq i64 %indvars.iv.next, 255 + br i1 %exitcond, label %for.end, label %for.body + +; If it did, we have two loops: +; CHECK: vector.body: +; CHECK: br {{.*}} label %vector.body, !llvm.loop [[vect:![0-9]+]] +; CHECK: for.body: +; CHECK: br {{.*}} label %for.body, !llvm.loop [[scalar:![0-9]+]] + +for.end: ; preds = %for.body + ret i32 %add +} + +; Now, we check for the Hint metadata +; CHECK: [[vect]] = metadata !{metadata [[vect]], metadata [[width:![0-9]+]], metadata [[unroll:![0-9]+]]} +; CHECK: [[width]] = metadata !{metadata !"llvm.vectorizer.width", i32 1} +; CHECK: [[unroll]] = metadata !{metadata !"llvm.vectorizer.unroll", i32 1} +; CHECK: [[scalar]] = metadata !{metadata [[scalar]], metadata [[width]], metadata [[unroll]]} + |