================
@@ -2653,6 +2664,14 @@ bool AMDGPULegalizerInfo::legalizeAddrSpaceCast(
if (!ApertureReg.isValid())
return false;
+ if (SrcAS == AMDGPUAS::BARRIER) {
+ // barrier -> flat: add the barrier AS offset
+ SrcAsInt =
+ B.buildAdd(S32, SrcAsInt,
----------------
Pierre-vh wrote:
I'd rather not try to optimize this too much, as this would land then
immediately get replaced by the synthetic apertures in the next PR of the stack.
https://github.com/llvm/llvm-project/pull/209746
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