craig.topper added inline comments.
================
Comment at: llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp:3896
+ // encoder.
Prefixes |= X86::IP_USE_VEX3;
+ Prefixes |= X86::Force_VEX3Encoding;
----------------
LiuChen3 wrote:
> craig.topper wrote:
> > Why do we need Force_VEX3Encoding and IP_USE_VEX3?
> I think this will make all of IP_USE_VEX3 the 3-byte vex prefix instruction
> output with {vex3}. The IP_USE_VEX3 is for encoder.
Isn't this the only place we set IP_USE_VEX3?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D90009/new/
https://reviews.llvm.org/D90009
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