[AMDGPU] Generic lowering for rint and nearbyint (#69596)
The are three different rounding intrinsics, that are brought down to
same instruction.
Co-authored-by: Acim Maravic <acim.maravic@amd.com>
diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index b351e6d..dd5577d 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -3570,10 +3570,10 @@
return lowerFFloor(MI);
case TargetOpcode::G_INTRINSIC_ROUND:
return lowerIntrinsicRound(MI);
- case TargetOpcode::G_INTRINSIC_ROUNDEVEN: {
+ case TargetOpcode::G_FRINT: {
// Since round even is the assumed rounding mode for unconstrained FP
// operations, rint and roundeven are the same operation.
- changeOpcode(MI, TargetOpcode::G_FRINT);
+ changeOpcode(MI, TargetOpcode::G_INTRINSIC_ROUNDEVEN);
return Legalized;
}
case TargetOpcode::G_ATOMIC_CMPXCHG_WITH_SUCCESS: {
