Add support for Vector Sum Across Partial 1/4 Saturated on PowerPC

Author: lu-zero

src/etc/platform-intrinsics/powerpc.json

@@ -198,6 +198,20 @@
             "llvm": "vsum2sws",
             "ret": "s32",
             "args": ["0", "0"]
+        },
+        {
+            "intrinsic": "sum4{0.kind}bs",
+            "width": [128],
+            "llvm": "vsum4{0.kind}bs",
+            "ret": "i32",
+            "args": ["0NN", "0"]
+        },
+        {
+            "intrinsic": "sum4shs",
+            "width": [128],
+            "llvm": "vsum4shs",
+            "ret": "s32",
+            "args": ["0N", "0"]
         }
     ]
 }

src/librustc_platform_intrinsics/powerpc.rs

@@ -377,6 +377,21 @@ pub fn find(name: &str) -> Option<Intrinsic> {
             output: &::I32x4,
             definition: Named("llvm.ppc.altivec.vsum2sws")
         },
+        "_vec_sum4sbs" => Intrinsic {
+            inputs: { static INPUTS: [&'static Type; 2] = [&::I8x16, &::I32x4]; &INPUTS },
+            output: &::I32x4,
+            definition: Named("llvm.ppc.altivec.vsum4sbs")
+        },
+        "_vec_sum4ubs" => Intrinsic {
+            inputs: { static INPUTS: [&'static Type; 2] = [&::U8x16, &::U32x4]; &INPUTS },
+            output: &::U32x4,
+            definition: Named("llvm.ppc.altivec.vsum4ubs")
+        },
+        "_vec_sum4shs" => Intrinsic {
+            inputs: { static INPUTS: [&'static Type; 2] = [&::I16x8, &::I32x4]; &INPUTS },
+            output: &::I32x4,
+            definition: Named("llvm.ppc.altivec.vsum4shs")
+        },
         _ => return None,
     })
 }