[PATCH] D79207: [AArch64][GlobalISel] Use the IR pointer type in MMO to guess G_LOAD regbanks

Amara Emerson via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri May 1 17:14:46 PDT 2020


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


================
Comment at: llvm/lib/Target/AArch64/AArch64RegisterBankInfo.cpp:689-690
+      if (LdVal) {
+        PointerType *PTy = cast<PointerType>(LdVal->getType());
+        if (PTy->getElementType()->isFPOrFPVectorTy()) {
           OpRegBankIdx[0] = PMI_FirstFPR;
----------------
arsenm wrote:
> This is going to break opaque pointers
Indeed opaque pointers will break this. Which is why I was going to propose some other form of propagating type information on vregs. RFC incoming...


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  https://reviews.llvm.org/D79207/new/

https://reviews.llvm.org/D79207





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