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| author | Eric Christopher <echristo@gmail.com> | 2019-04-17 04:52:47 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@gmail.com> | 2019-04-17 04:52:47 +0000 |
| commit | cee313d288a4faf0355d76fb6e0e927e211d08a5 (patch) | |
| tree | d386075318d761197779a96e5d8fc0dc7b06342b /llvm/test/Transforms/LoopVectorize/gep_with_bitcast.ll | |
| parent | c3d6a929fdd92fd06d4304675ade8d7210ee711a (diff) | |
| download | bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.tar.gz bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.zip | |
Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.
Will be re-reverting again.
llvm-svn: 358552
Diffstat (limited to 'llvm/test/Transforms/LoopVectorize/gep_with_bitcast.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopVectorize/gep_with_bitcast.ll | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/gep_with_bitcast.ll b/llvm/test/Transforms/LoopVectorize/gep_with_bitcast.ll new file mode 100644 index 00000000000..e73b6eacbe1 --- /dev/null +++ b/llvm/test/Transforms/LoopVectorize/gep_with_bitcast.ll @@ -0,0 +1,41 @@ +; RUN: opt -S -loop-vectorize -instcombine -force-vector-width=4 < %s | FileCheck %s + +target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128" + +; Vectorization of loop with bitcast between GEP and load +; Simplified source code: +;void foo (double** __restrict__ in, bool * __restrict__ res) { +; +; for (int i = 0; i < 4096; ++i) +; res[i] = ((unsigned long long)in[i] == 0); +;} + +; CHECK-LABEL: @foo +; CHECK: vector.body +; CHECK: %[[IV:.+]] = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ] +; CHECK: %[[v0:.+]] = getelementptr inbounds double*, double** %in, i64 %[[IV]] +; CHECK: %[[v1:.+]] = bitcast double** %[[v0]] to <4 x i64>* +; CHECK: %wide.load = load <4 x i64>, <4 x i64>* %[[v1]], align 8 +; CHECK: icmp eq <4 x i64> %wide.load, zeroinitializer +; CHECK: br i1 + +define void @foo(double** noalias nocapture readonly %in, double** noalias nocapture readnone %out, i8* noalias nocapture %res) #0 { +entry: + br label %for.body + +for.body: + %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] + %arrayidx = getelementptr inbounds double*, double** %in, i64 %indvars.iv + %tmp53 = bitcast double** %arrayidx to i64* + %tmp54 = load i64, i64* %tmp53, align 8 + %cmp1 = icmp eq i64 %tmp54, 0 + %arrayidx3 = getelementptr inbounds i8, i8* %res, i64 %indvars.iv + %frombool = zext i1 %cmp1 to i8 + store i8 %frombool, i8* %arrayidx3, align 1 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + %exitcond = icmp eq i64 %indvars.iv.next, 4096 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} |
