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[AMDGPU] gfx1250 does not need nop before VGPR dealloc #153844

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Merged
merged 1 commit into from
Aug 15, 2025
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[AMDGPU] gfx1250 does not need nop before VGPR dealloc #153844

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6 changes: 1 addition & 5 deletions llvm/lib/Target/AMDGPU/GCNSubtarget.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1799,11 +1799,7 @@ class GCNSubtarget final : public AMDGPUGenSubtargetInfo,

// \returns true if the subtarget has a hazard requiring an "s_nop 0"
// instruction before "s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)".
bool requiresNopBeforeDeallocVGPRs() const {
// Currently all targets that support the dealloc VGPRs message also require
// the nop.
return true;
}
bool requiresNopBeforeDeallocVGPRs() const { return !GFX1250Insts; }

bool isDynamicVGPREnabled() const { return DynamicVGPR; }
unsigned getDynamicVGPRBlockSize() const {
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