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AMDGPU: Add debug print to load/store opt for agpr case #155767

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Merged
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Aug 29, 2025
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AMDGPU: Add debug print to load/store opt for agpr case #155767

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3 changes: 3 additions & 0 deletions llvm/lib/Target/AMDGPU/SILoadStoreOptimizer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2466,6 +2466,9 @@ SILoadStoreOptimizer::collectMergeableInsts(
continue;

if (CI.InstClass == DS_WRITE && CI.IsAGPR) {
LLVM_DEBUG(
dbgs() << "cannot merge ds writes with mixed AGPR and VGPR data\n");

// FIXME: nothing is illegal in a ds_write2 opcode with two AGPR data
// operands. However we are reporting that ds_write2 shall have
// only VGPR data so that machine copy propagation does not
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