[PATCH] D135976: [RISCV] Correct RISCVTTIImpl::getRegUsageForType for vectors of pointers.

[Craig Topper via Phabricator via llvm-commits]

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getPrimitiveSizeInBits returns 0 for pointers, we need to query
the size via DataLayout instead.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D135976

Files:
  llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp


Index: llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
===================================================================
--- llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
+++ llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
@@ -969,7 +969,7 @@
 }
 
 unsigned RISCVTTIImpl::getRegUsageForType(Type *Ty) {
-  TypeSize Size = Ty->getPrimitiveSizeInBits();
+  TypeSize Size = DL.getTypeSizeInBits(Ty);
   if (Ty->isVectorTy()) {
     if (Size.isScalable() && ST->hasVInstructions())
       return divideCeil(Size.getKnownMinValue(), RISCV::RVVBitsPerBlock);


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