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| author | Nicolai Haehnle <nhaehnle@gmail.com> | 2016-04-19 21:58:17 +0000 |
|---|---|---|
| committer | Nicolai Haehnle <nhaehnle@gmail.com> | 2016-04-19 21:58:17 +0000 |
| commit | 7483937bf0e36ef0afd34a3471e76901e0e49796 (patch) | |
| tree | abfa2c301013e89476d9bfde1a60e14e1da815f1 /lldb/packages/Python/lldbsuite/test/python_api/signals/main.cpp | |
| parent | 152c18e9ac32a7e82d36dcc8c42cffc5487554b7 (diff) | |
| download | bcm5719-llvm-7483937bf0e36ef0afd34a3471e76901e0e49796.tar.gz bcm5719-llvm-7483937bf0e36ef0afd34a3471e76901e0e49796.zip | |
AMDGPU/SI: SGPR accounting in getSIProgramInfo must ignore exec_lo/hi
Summary:
A shader stored the live mask (initial exec mask) in an SGPR which was then
spilled during register allocation. The allocator quite reasonably
optimized turned the spill into
v_writelane_b32 %vgpr, exec_lo, N
v_writelane_b32 %vgpr, exec_hi, N+1
at the beginning of the shader, confusing the SGPR accounting.
No test case, because si-sgpr-spill.ll together with an upcoming patch for
WQM handling exhibits the problem.
Reviewers: arsenm, tstellarAMD
Subscribers: arsenm, llvm-commits
Differential Revision: http://reviews.llvm.org/D19199
llvm-svn: 266824
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/python_api/signals/main.cpp')
0 files changed, 0 insertions, 0 deletions
