[PATCH] D122462: [PowerPC] Add guard in LowerSELECT_CC for ppcf128

[Ting Wang via Phabricator via llvm-commits]

tingwang created this revision.
tingwang added reviewers: jsji, nemanjai, shchenz, PowerPC.
tingwang added a project: LLVM.
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LowerSELECT_CC can be used to lower intrinsics for example __builtin_max. In the long double case, we need to add this check so that ppcf128 does not wrongly pickup PPCISD::XSMAXC.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D122462

Files:
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp


Index: llvm/lib/Target/PowerPC/PPCISelLowering.cpp
===================================================================
--- llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -7913,7 +7913,8 @@
 
   // We have xsmaxc[dq]p/xsminc[dq]p which are OK to emit even in the
   // presence of infinities.
-  if (Subtarget.hasP9Vector() && LHS == TV && RHS == FV) {
+  if (Subtarget.hasP9Vector() && LHS == TV && RHS == FV &&
+      CmpVT != MVT::ppcf128) {
     switch (CC) {
     default:
       break;


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