[PATCH] D155169: [CSKY] Add more patterns to select FNMUL

[Ben Shi via Phabricator via llvm-commits]

benshi001 marked an inline comment as done.
benshi001 added inline comments.


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Comment at: llvm/lib/Target/CSKY/CSKYInstrInfoF1.td:146
+let Predicates = [HasFPUv2_SF] in {
+  def : Pat<(f32 (fmul (fneg sFPR32Op:$vrx), sFPR32Op:$vry)),
+            (FNMUL_S sFPR32Op:$vrx, sFPR32Op:$vry)>;
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zixuan-wu wrote:
> `(f32 (fmul sFPR32Op:$vrx (fneg sFPR32Op:$vry)))` is also possible?
We need not specify it explictly, since `fmul` is commutable operation. I have added tests for both cases.


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  https://reviews.llvm.org/D155169/new/

https://reviews.llvm.org/D155169