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| author | Tom Stellard <thomas.stellard@amd.com> | 2016-08-29 13:06:10 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2016-08-29 13:06:10 +0000 |
| commit | 5d3f71f721273e17412dcb3a1726235aabc65651 (patch) | |
| tree | b8e524db082bbe2b138d338c1c0b1595075ea2a4 /lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp | |
| parent | 412a52955164c6b06dfc3d56264aea4652f6ec25 (diff) | |
| download | llvm-5d3f71f721273e17412dcb3a1726235aabc65651.zip llvm-5d3f71f721273e17412dcb3a1726235aabc65651.tar.gz llvm-5d3f71f721273e17412dcb3a1726235aabc65651.tar.bz2 | |
AMDGPU/SI: Improve register allocation hints for sopk instructions
Summary:
For shrinking SOPK instructions, we were creating a hint to tell the
register allocator to use the register allocated for src0 for the dst
operand as well. However, this seems to not work sometimes depending
on the order virtual registers are assigned physical registers.
To fix this, I've added a second allocation hint which does the reverse,
asks that the register allocated for dst is used for src0.
Reviewers: arsenm
Subscribers: arsenm, llvm-commits, kzhuravl
Differential Revision: https://reviews.llvm.org/D23862
llvm-svn: 279968
Diffstat (limited to 'lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp')
0 files changed, 0 insertions, 0 deletions