Add x86 SIMD encoding for icmp sgt

cranelift/filetests/filetests/isa/x86/simd-comparison-binemit.clif

@@ -0,0 +1,27 @@
+test binemit
+set enable_simd
+target x86_64 skylake
+
+function %icmp_sgt_i8x16(i8x16, i8x16) -> b8x16 {
+ebb0(v0: i8x16 [%xmm2], v1: i8x16 [%xmm1]):
+[-, %xmm2]  v2 = icmp sgt v0, v1     ; bin: 66 0f 64 d1
+            return v2
+}
+
+function %icmp_sgt_i16x8(i16x8, i16x8) -> b16x8 {
+ebb0(v0: i16x8 [%xmm4], v1: i16x8 [%xmm3]):
+[-, %xmm4]  v2 = icmp sgt v0, v1     ; bin: 66 0f 65 e3
+            return v2
+}
+
+function %icmp_sgt_i32x4(i32x4, i32x4) -> b32x4 {
+ebb0(v0: i32x4 [%xmm6], v1: i32x4 [%xmm5]):
+[-, %xmm6]  v2 = icmp sgt v0, v1     ; bin: 66 0f 66 f5
+            return v2
+}
+
+function %icmp_sgt_i64x2(i64x2, i64x2) -> b64x2 {
+ebb0(v0: i64x2 [%xmm0], v1: i64x2 [%xmm7]):
+[-, %xmm0]  v2 = icmp sgt v0, v1     ; bin: 66 0f 38 37 c7
+            return v2
+}

cranelift/filetests/filetests/isa/x86/simd-comparison-run.clif

@@ -43,3 +43,26 @@ ebb0:
     return v5
 }
 ; run
+
+function %icmp_sgt_i8x16() -> b1 {
+ebb0:
+    v0 = vconst.i8x16 [0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0]
+    v1 = vconst.i8x16 [1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0xff]
+    v2 = icmp sgt v0, v1
+    v3 = raw_bitcast.i8x16 v2
+    v4 = vconst.i8x16 [0 0 0xff 0 0 0 0 0 0 0 0 0 0 0 0 0xff]
+    v7 = icmp eq v3, v4
+    v8 = vall_true v7
+    return v8
+}
+; run
+
+function %icmp_sgt_i64x2() -> b1 {
+ebb0:
+    v0 = vconst.i64x2 [0 -42]
+    v1 = vconst.i64x2 [-1 -43]
+    v2 = icmp sgt v0, v1
+    v8 = vall_true v2
+    return v8
+}
+; run