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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27809 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -85,3 +85,26 @@ This is probably only reasonable for a post-pass scheduler.
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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For this function:
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void test(vector float *A, vector float *B) {
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vector float C = (vector float)vec_cmpeq(*A, *B);
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if (!vec_any_eq(*A, *B))
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*B = (vector float){0,0,0,0};
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*A = C;
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}
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we get the following basic block:
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...
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lvx v2, 0, r4
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lvx v3, 0, r3
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vcmpeqfp v4, v3, v2
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vcmpeqfp. v2, v3, v2
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bne cr6, LBB1_2 ; cond_next
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The vcmpeqfp/vcmpeqfp. instructions currently cannot be merged when the
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vcmpeqfp. result is used by a branch. This can be improved.
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//===----------------------------------------------------------------------===//
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