AArch64: add nvcast patterns for v1f64

Author: TNorthover

llvm/lib/Target/AArch64/AArch64InstrInfo.td

@@ -7375,13 +7375,15 @@ def : Pat<(v4bf16 (AArch64NvCast (v2i32 FPR64:$src))), (v4bf16 FPR64:$src)>;
 def : Pat<(v2i32 (AArch64NvCast (v2i32 FPR64:$src))), (v2i32 FPR64:$src)>;
 def : Pat<(v2f32 (AArch64NvCast (v2i32 FPR64:$src))), (v2f32 FPR64:$src)>;
 def : Pat<(v1i64 (AArch64NvCast (v2i32 FPR64:$src))), (v1i64 FPR64:$src)>;
+def : Pat<(v1f64 (AArch64NvCast (v2i32 FPR64:$src))), (v1f64 FPR64:$src)>;
 
 def : Pat<(v8i8 (AArch64NvCast (v4i16 FPR64:$src))), (v8i8 FPR64:$src)>;
 def : Pat<(v4i16 (AArch64NvCast (v4i16 FPR64:$src))), (v4i16 FPR64:$src)>;
 def : Pat<(v4f16 (AArch64NvCast (v4i16 FPR64:$src))), (v4f16 FPR64:$src)>;
 def : Pat<(v4bf16 (AArch64NvCast (v4i16 FPR64:$src))), (v4bf16 FPR64:$src)>;
 def : Pat<(v2i32 (AArch64NvCast (v4i16 FPR64:$src))), (v2i32 FPR64:$src)>;
 def : Pat<(v1i64 (AArch64NvCast (v4i16 FPR64:$src))), (v1i64 FPR64:$src)>;
+def : Pat<(v1f64 (AArch64NvCast (v4i16 FPR64:$src))), (v1f64 FPR64:$src)>;
 
 def : Pat<(v8i8 (AArch64NvCast (v8i8 FPR64:$src))), (v8i8 FPR64:$src)>;
 def : Pat<(v4i16 (AArch64NvCast (v8i8 FPR64:$src))), (v4i16 FPR64:$src)>;
@@ -7390,6 +7392,7 @@ def : Pat<(v4bf16 (AArch64NvCast (v8i8 FPR64:$src))), (v4bf16 FPR64:$src)>;
 def : Pat<(v2i32 (AArch64NvCast (v8i8 FPR64:$src))), (v2i32 FPR64:$src)>;
 def : Pat<(v2f32 (AArch64NvCast (v8i8 FPR64:$src))), (v2f32 FPR64:$src)>;
 def : Pat<(v1i64 (AArch64NvCast (v8i8 FPR64:$src))), (v1i64 FPR64:$src)>;
+def : Pat<(v1f64 (AArch64NvCast (v4i16 FPR64:$src))), (v1f64 FPR64:$src)>;
 
 def : Pat<(v8i8 (AArch64NvCast (f64 FPR64:$src))), (v8i8 FPR64:$src)>;
 def : Pat<(v4i16 (AArch64NvCast (f64 FPR64:$src))), (v4i16 FPR64:$src)>;
@@ -7400,6 +7403,15 @@ def : Pat<(v2f32 (AArch64NvCast (f64 FPR64:$src))), (v2f32 FPR64:$src)>;
 def : Pat<(v1i64 (AArch64NvCast (f64 FPR64:$src))), (v1i64 FPR64:$src)>;
 def : Pat<(v1f64 (AArch64NvCast (f64 FPR64:$src))), (v1f64 FPR64:$src)>;
 
+def : Pat<(v8i8 (AArch64NvCast (v1f64 FPR64:$src))), (v8i8 FPR64:$src)>;
+def : Pat<(v4i16 (AArch64NvCast (v1f64 FPR64:$src))), (v4i16 FPR64:$src)>;
+def : Pat<(v4f16 (AArch64NvCast (v1f64 FPR64:$src))), (v4f16 FPR64:$src)>;
+def : Pat<(v4bf16 (AArch64NvCast (v1f64 FPR64:$src))), (v4bf16 FPR64:$src)>;
+def : Pat<(v2i32 (AArch64NvCast (v1f64 FPR64:$src))), (v2i32 FPR64:$src)>;
+def : Pat<(v2f32 (AArch64NvCast (v1f64 FPR64:$src))), (v2f32 FPR64:$src)>;
+def : Pat<(v1i64 (AArch64NvCast (v1f64 FPR64:$src))), (v1i64 FPR64:$src)>;
+def : Pat<(f64 (AArch64NvCast (v1f64 FPR64:$src))), (f64 FPR64:$src)>;
+
 def : Pat<(v8i8 (AArch64NvCast (v2f32 FPR64:$src))), (v8i8 FPR64:$src)>;
 def : Pat<(v4i16 (AArch64NvCast (v2f32 FPR64:$src))), (v4i16 FPR64:$src)>;
 def : Pat<(v2i32 (AArch64NvCast (v2f32 FPR64:$src))), (v2i32 FPR64:$src)>;

llvm/test/CodeGen/AArch64/aarch64-be-bv.ll

@@ -1030,3 +1030,15 @@ define dso_local void @modimm_t12_call() {
 
   ret void
 }
+
+define <2 x double> @test_v1f64(<1 x double> %0, <2 x double>* %1) {
+; CHECK-LABEL: test_v1f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mvni v1.2s, #31, msl #16
+; CHECK-NEXT:    // kill: def $d0 killed $d0 def $q0
+; CHECK-NEXT:    mov v1.d[1], v0.d[0]
+; CHECK-NEXT:    ext v0.16b, v1.16b, v1.16b, #8
+; CHECK-NEXT:    ret
+  %vec = shufflevector <1 x double> <double 0xFFE00000FFE00000>, <1 x double> %0, <2 x i32> <i32 0, i32 1>
+  ret <2 x double> %vec
+}