Add support for Vector Reciprocal Square Root Estimate Float on PowerPC

rust-lang · Sep 27, 2017 · 73dd6ae · 73dd6ae
1 parent 8fb0bcb
commit 73dd6ae
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diff --git a/src/etc/platform-intrinsics/powerpc.json b/src/etc/platform-intrinsics/powerpc.json
@@ -254,6 +254,13 @@
             "llvm": "vrefp",
             "ret": "f32",
             "args": ["0"]
+        },
+        {
+            "intrinsic": "rsqrte",
+            "width": [128],
+            "llvm": "vrsqrtefp",
+            "ret": "f32",
+            "args": ["0"]
         }
     ]
 }
diff --git a/src/librustc_platform_intrinsics/powerpc.rs b/src/librustc_platform_intrinsics/powerpc.rs
@@ -422,6 +422,11 @@ pub fn find(name: &str) -> Option<Intrinsic> {
             output: &::F32x4,
             definition: Named("llvm.ppc.altivec.vrefp")
         },
+        "_vec_rsqrte" => Intrinsic {
+            inputs: { static INPUTS: [&'static Type; 1] = [&::F32x4]; &INPUTS },
+            output: &::F32x4,
+            definition: Named("llvm.ppc.altivec.vrsqrtefp")
+        },
         _ => return None,
     })
 }