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| author | Alexander Musman <alexander.musman@gmail.com> | 2014-04-23 08:40:37 +0000 |
|---|---|---|
| committer | Alexander Musman <alexander.musman@gmail.com> | 2014-04-23 08:40:37 +0000 |
| commit | bf255f5d5a54b2a16a61098709a2b02423761b56 (patch) | |
| tree | aac406d0b95a7838cdbfbe1afbae6af28f0ce257 /test | |
| parent | 07c2241e45915922e0c7bede9558dcd6f318ebdc (diff) | |
| download | llvm-bf255f5d5a54b2a16a61098709a2b02423761b56.tar.gz llvm-bf255f5d5a54b2a16a61098709a2b02423761b56.tar.bz2 llvm-bf255f5d5a54b2a16a61098709a2b02423761b56.tar.xz | |
[LV] Statistics numbers for LoopVectorize introduced: a number of analyzed loops & a number of vectorized loops.
Use -stats to see how many loops were analyzed for possible vectorization and how many of them were actually vectorized.
Patch by Zinovy Nis
Differential Revision: http://reviews.llvm.org/D3438
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206956 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/LoopVectorize/vect.stats.ll | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/test/Transforms/LoopVectorize/vect.stats.ll b/test/Transforms/LoopVectorize/vect.stats.ll new file mode 100644 index 0000000000..7ce4377146 --- /dev/null +++ b/test/Transforms/LoopVectorize/vect.stats.ll @@ -0,0 +1,66 @@ +; RUN: opt < %s -loop-vectorize -force-vector-unroll=4 -force-vector-width=4 -debug-only=loop-vectorize -stats -S 2>&1 | FileCheck %s +; REQUIRES: asserts + +; +; We have 2 loops, one of them is vectorizable and the second one is not. +; + +; CHECK: 2 loop-vectorize - Number of loops analyzed for vectorization +; CHECK: 1 loop-vectorize - Number of loops vectorized + +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" + +define void @vectorized(float* nocapture %a, i64 %size) { +entry: + %cmp1 = icmp sgt i64 %size, 0 + br i1 %cmp1, label %for.header, label %for.end + +for.header: + %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] + %cmp2 = icmp sgt i64 %indvars.iv, %size + br i1 %cmp2, label %for.end, label %for.body + +for.body: + + %arrayidx = getelementptr inbounds float* %a, i64 %indvars.iv + %0 = load float* %arrayidx, align 4 + %mul = fmul float %0, %0 + store float %mul, float* %arrayidx, align 4 + + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + br label %for.header + +for.end: + ret void +} + +define void @not_vectorized(float* nocapture %a, i64 %size) { +entry: + %cmp1 = icmp sgt i64 %size, 0 + br i1 %cmp1, label %for.header, label %for.end + +for.header: + %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] + %cmp2 = icmp sgt i64 %indvars.iv, %size + br i1 %cmp2, label %for.end, label %for.body + +for.body: + + %0 = add nsw i64 %indvars.iv, -5 + %arrayidx = getelementptr inbounds float* %a, i64 %0 + %1 = load float* %arrayidx, align 4 + %2 = add nsw i64 %indvars.iv, 2 + %arrayidx2 = getelementptr inbounds float* %a, i64 %2 + %3 = load float* %arrayidx2, align 4 + %mul = fmul float %1, %3 + %arrayidx4 = getelementptr inbounds float* %a, i64 %indvars.iv + store float %mul, float* %arrayidx4, align 4 + + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + br label %for.header + +for.end: + ret void +} + |