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2 Commits

Author SHA1 Message Date
Jinsong Ji eaf6746db0 [PowerPC] Add missing pattern for VSX Scalar Negative Multiply-Subtract Single Precision 
Summary:
This was found during review of https://reviews.llvm.org/D66050.
In the simple test of fdiv, we miss to fold
```
        fneg 2, 2
        xsmaddasp 3, 2, 0
```
to
```
        xsnmsubasp 3, 2, 0
```
We have the patterns for Double Precision and vectors, just missing
Single Precision, the patch add that.

Reviewers: #powerpc, hfinkel, nemanjai, steven.zhang

Reviewed By: #powerpc, steven.zhang

Subscribers: wuzish, hiraditya, kbarton, MaskRay, shchenz, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67595

llvm-svn: 372985
 2019-09-26 15:11:33 +00:00
Jinsong Ji 07d824a7c3 [PowerPC][NFC] Add a testcase for fdiv expansion. 
Pre-commit for following patch.

llvm-svn: 371938
 2019-09-15 20:02:25 +00:00