Add Vector Compare Equal

Author: lu-zero

src/etc/platform-intrinsics/powerpc.json

@@ -3,8 +3,12 @@
     "intrinsic_prefix": "_vec_",
     "llvm_prefix": "llvm.ppc.altivec.",
     "number_info": {
-        "unsigned": {},
-        "signed": {},
+        "unsigned": {
+            "data_type_short": { "8": "b", "16": "h", "32": "w", "64": "d" }
+        },
+        "signed": {
+            "data_type_short": { "8": "b", "16": "h", "32": "w", "64": "d" }
+        },
         "float": {}
     },
     "width_info": {
@@ -31,6 +35,13 @@
             "llvm": "vcmpbfp",
             "ret": "s32",
             "args": ["f32", "f32"]
+        },
+        {
+            "intrinsic": "cmpeq{0.data_type_short}",
+            "width": [128],
+            "llvm": "vcmpequ{0.data_type_short}",
+            "ret": "s(8-32)",
+            "args": ["0", "0"]
         }
     ]
 }

src/librustc_platform_intrinsics/powerpc.rs

@@ -37,6 +37,21 @@ pub fn find(name: &str) -> Option<Intrinsic> {
             output: &::I32x4,
             definition: Named("llvm.ppc.altivec.vcmpbfp")
         },
+        "_vec_cmpeqb" => Intrinsic {
+            inputs: { static INPUTS: [&'static Type; 2] = [&::I8x16, &::I8x16]; &INPUTS },
+            output: &::I8x16,
+            definition: Named("llvm.ppc.altivec.vcmpequb")
+        },
+        "_vec_cmpeqh" => Intrinsic {
+            inputs: { static INPUTS: [&'static Type; 2] = [&::I16x8, &::I16x8]; &INPUTS },
+            output: &::I16x8,
+            definition: Named("llvm.ppc.altivec.vcmpequh")
+        },
+        "_vec_cmpeqw" => Intrinsic {
+            inputs: { static INPUTS: [&'static Type; 2] = [&::I32x4, &::I32x4]; &INPUTS },
+            output: &::I32x4,
+            definition: Named("llvm.ppc.altivec.vcmpequw")
+        },
         _ => return None,
     })
 }