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| author | Nicolai Haehnle <nhaehnle@gmail.com> | 2016-10-27 08:15:07 +0000 |
|---|---|---|
| committer | Nicolai Haehnle <nhaehnle@gmail.com> | 2016-10-27 08:15:07 +0000 |
| commit | 7b0e25b7ad98a8c8970ee49a768b88b1dd5e043f (patch) | |
| tree | 95cec42bb929a03c5407ba5ebbd9f761183eb2fb /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 00009d48247477bb1f904a46dfca405cea16ed30 (diff) | |
| download | bcm5719-llvm-7b0e25b7ad98a8c8970ee49a768b88b1dd5e043f.tar.gz bcm5719-llvm-7b0e25b7ad98a8c8970ee49a768b88b1dd5e043f.zip | |
AMDGPU: Fix SILoadStoreOptimizer when writes cannot be merged due register dependencies
Summary:
When finding a match for a merge and collecting the instructions that must
be moved, keep in mind that the instruction we merge might actually use one
of the defs that are being moved.
Fixes piglit spec/arb_enhanced_layouts/execution/component-layout/vs-tcs-load-output[-indirect].
The fact that the ds_read in the test case is not eliminated suggests that
there might be another problem related to alias analysis, but that's a
separate problem: this pass should still work correctly even when earlier
optimization passes missed something or were disabled.
Reviewers: tstellarAMD, arsenm
Subscribers: kzhuravl, wdng, yaxunl, llvm-commits, tony-tye
Differential Revision: https://reviews.llvm.org/D25829
llvm-svn: 285273
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions
