[PATCH] D146494: [X86] Combine constant vector inputs for FMA

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


================
Comment at: llvm/lib/Target/X86/X86ISelLowering.cpp:54178
+    if (auto *Cst = dyn_cast<ConstantFPSDNode>(op)) {
+      if (Cst->isNegative())
+        return SDValue();
----------------
Couldn't both V and NV have negative values now that they aren't splats?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D146494/new/

https://reviews.llvm.org/D146494