[PATCH] D119578: [X86] selectLEAAddr - add X86ISD::SMUL/UMULO handling
Phoebe Wang via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Feb 16 18:58:04 PST 2022
pengfei added inline comments.
================
Comment at: llvm/test/CodeGen/X86/xmulo.ll:489-492
; WIN32-NEXT: movl %ecx, %edx
-; WIN32-NEXT: movl %eax, %esi
; WIN32-NEXT: seto %ch
; WIN32-NEXT: orb %bh, %ch
+; WIN32-NEXT: leal (%edi,%eax), %esi
----------------
No sure if it's always beneficial. IIRC, we have some disadvantages on decoding complex lea.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D119578/new/
https://reviews.llvm.org/D119578
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