================
@@ -1700,19 +1725,30 @@ unsigned SILoadStoreOptimizer::getNewOpcode(const
CombineInfo &CI,
case 8:
return AMDGPU::S_BUFFER_LOAD_DWORDX8_SGPR_IMM;
}
- case S_LOAD_IMM:
+ case S_LOAD_IMM: {
+ // If XNACK is enabled, use the constrained opcodes when the first load is
+ // under-aligned.
+ const MachineMemOperand *MMO = *CI.I->memoperands_begin();
+ auto NeedsConstrainedOpc = [&MMO, Width](const GCNSubtarget &ST) {
----------------
jayfoad wrote:
This doesn't need to be a lambda. It is always called, with identical
arguments. Just calculate the result as a `bool` here.
https://github.com/llvm/llvm-project/pull/96162
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