[AArch64 NEON] Add patterns for concat_vector on v2i32.

[oota-llvm.git] / lib / Target / AArch64 / AArch64InstrNEON.td

diff --git a/lib/Target/AArch64/AArch64InstrNEON.td b/lib/Target/AArch64/AArch64InstrNEON.td
index 3c446d5860d43c326ed8bf7bacf99385df8b0bfa..badd9e0f4021b16735ad9ae5e491802e92de7d5c 100644 (file)
--- a/lib/Target/AArch64/AArch64InstrNEON.td
+++ b/lib/Target/AArch64/AArch64InstrNEON.td
@@ -7074,10 +7074,18 @@ defm : Concat_Vector_Pattern<v2i64, v1i64>;
 defm : Concat_Vector_Pattern<v4f32, v2f32>;
 defm : Concat_Vector_Pattern<v2f64, v1f64>;
 
+def : Pat<(v2i32 (concat_vectors (v1i32 FPR32:$Rn), undef)),
+          (v2i32 (SUBREG_TO_REG(i64 0), $Rn, sub_32))>;
+def : Pat<(v2i32 (concat_vectors (v1i32 FPR32:$Rn), (v1i32 FPR32:$Rm))),
+          (EXTRACT_SUBREG 
+            (v4i32 (INSELs
+              (v4i32 (SUBREG_TO_REG (i64 0), FPR32:$Rn, sub_32)),
+              (v4i32 (SUBREG_TO_REG (i64 0), FPR32:$Rm, sub_32)),
+              (i64 1),
+              (i64 0))),
+            sub_64)>;
 def : Pat<(v2i32 (concat_vectors (v1i32 FPR32:$Rn), (v1i32 FPR32:$Rn))),
           (DUPELT2s (v4i32 (SUBREG_TO_REG(i64 0), $Rn, sub_32)), 0)>;
-def : Pat<(v2i32 (concat_vectors undef, (v1i32 FPR32:$Rn))),
-          (DUPELT2s (v4i32 (SUBREG_TO_REG(i64 0), $Rn, sub_32)), 0)>;
 
 //patterns for EXTRACT_SUBVECTOR
 def : Pat<(v8i8 (extract_subvector (v16i8 VPR128:$Rn), (i64 0))),