[PATCH] D103190: [AMDGPU] Fix kernel LDS lowering for constants
Stanislav Mekhanoshin via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed May 26 11:06:05 PDT 2021
rampitec created this revision.
rampitec added reviewers: arsenm, hsmhsm, JonChesterfield, ronlieb.
Herald added subscribers: foad, kerbowa, hiraditya, t-tye, tpr, dstuttard, yaxunl, nhaehnle, jvesely, kzhuravl.
rampitec requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.
There is a trivial but severe bug in the recent code collecting
LDS globals used by kernel. It aborts scan on the first constant
without scanning further uses. That leads to LDS overallocation
with multiple kernels in certain cases.
https://reviews.llvm.org/D103190
Files:
llvm/lib/Target/AMDGPU/Utils/AMDGPULDSUtils.cpp
llvm/test/CodeGen/AMDGPU/ds_read2.ll
llvm/test/CodeGen/AMDGPU/ds_write2.ll
llvm/test/CodeGen/AMDGPU/lower-kernel-lds-constexpr.ll
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