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[AArch64][Falkor] Fix bug in Falkor HWPF collision avoidance pass.

Authored by gberry on Apr 10 2018, 2:43 PM.

Description

[AArch64][Falkor] Fix bug in Falkor HWPF collision avoidance pass.

Summary:
When inserting MOVs to avoid Falkor HWPF collisions, the non-base
register operand of load instructions (e.g. a register offset) was not
being considered live, so it could potentially have been used as a
scratch register, clobbering the actual offset value.

Reviewers: mcrosier

Subscribers: rengolin, javed.absar, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D45502

llvm-svn: 329761

Details

Committed
gberryApr 10 2018, 2:43 PM
Differential Revision
D45502: [AArch64][Falkor] Fix bug in Falkor HWPF collision avoidance pass.
Parents
rG52b1f9a30b35: Revert "Handle the default case"
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