[LV] Add cost model for simd vector select instructions of type float
For simd vector selects, use cmeq + bsl for v2f32/v4f32/v2f64, so their cost are cheep.
Fix https://github.com/llvm/llvm-project/issues/63082
Reviewed By: dmgreen
Differential Revision: https://reviews.llvm.org/D152523
diff --git a/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp b/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
index 8a00325..bcadd65 100644
--- a/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
+++ b/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
@@ -2694,6 +2694,11 @@
static const TypeConversionCostTblEntry
VectorSelectTbl[] = {
+ { ISD::SELECT, MVT::v2i1, MVT::v2f32, 2 },
+ { ISD::SELECT, MVT::v2i1, MVT::v2f64, 2 },
+ { ISD::SELECT, MVT::v4i1, MVT::v4f32, 2 },
+ { ISD::SELECT, MVT::v4i1, MVT::v4f16, 2 },
+ { ISD::SELECT, MVT::v8i1, MVT::v8f16, 2 },
{ ISD::SELECT, MVT::v16i1, MVT::v16i16, 16 },
{ ISD::SELECT, MVT::v8i1, MVT::v8i32, 8 },
{ ISD::SELECT, MVT::v16i1, MVT::v16i32, 16 },
