[all-commits] [llvm/llvm-project] 264b1b: [ARM] Convert vector fdiv+fcvt fixed-point combine...
David Green via All-commits
all-commits at lists.llvm.org
Mon Jun 3 01:32:00 PDT 2024
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: 264b1b24869eb45463a98d70e9b9e991092acc28
https://github.com/llvm/llvm-project/commit/264b1b24869eb45463a98d70e9b9e991092acc28
Author: David Green <david.green at arm.com>
Date: 2024-06-03 (Mon, 03 Jun 2024)
Changed paths:
M llvm/lib/Target/ARM/ARMISelLowering.cpp
M llvm/test/CodeGen/ARM/vdiv_combine.ll
Log Message:
-----------
[ARM] Convert vector fdiv+fcvt fixed-point combine to fmul.
Instcombine will convert fdiv by a power-2 to fmul, this converts the
PerformVDIVCombine that converts fdiv+fcvt to fixed-point fcvt to fmul+fcvt.
The fdiv tests will look worse, but won't appear in practice (and should be
improved again by #93882).
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