yroux added inline comments.
================
Comment at: llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp:5606
+ // candidates.
+ auto CantGuaranteeValueAcrossCall = [&TRI](outliner::Candidate &C) {
+ // If the unsafe registers in this block are all dead, then we don't need
----------------
yroux wrote:
> samparker wrote:
> > Does this code work with the DSP instructions that read/write the Q and GE
> > flags? I have a nasty feeling that we don't model their register usage.
> Good question, I'll test that
From what I saw in my testing of DSP instructions, these flags are handled by
CPSR usage, so this code seems good to me, do you have something else in mind ?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D76066/new/
https://reviews.llvm.org/D76066
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