[PATCH] D159537: [AArch64] Don't rely on (zext (trunc x)) pattern to detect zext_inreg MULL patterns - use value tracking directly
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Sep 21 10:39:39 PDT 2023
RKSimon added inline comments.
================
Comment at: llvm/lib/Target/AArch64/AArch64ISelLowering.cpp:4436
- assert(N->getOpcode() == ISD::BUILD_VECTOR && "expected BUILD_VECTOR");
- EVT VT = N->getValueType(0);
+ if (VT.is128BitVector()) {
+ APInt HiBits = APInt::getHighBitsSet(OrigEltSize, EltSize);
----------------
dmgreen wrote:
> I believe this should always be a 128bit vector at this point.
Thanks, I'll make it an assert
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D159537/new/
https://reviews.llvm.org/D159537
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