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AMDGPU: Track physreg uses in SILoadStoreOptimizer

Description

AMDGPU: Track physreg uses in SILoadStoreOptimizer

Summary:
This handles def-after-use of physregs, and allows us to merge loads and
stores even across some physreg defs (typically M0 defs).

Change-Id: I076484b2bda27c2cf46013c845a0380c5b89b67b

Reviewers: arsenm, mareko, rampitec

Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D42647

Details

Committed
nhaFeb 23 2018, 2:45 AM
Differential Revision
D42647: AMDGPU: Track physreg uses in SILoadStoreOptimizer
Parents
rL325881: StructurizeCFG: Test for branch divergence correctly
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