Auto merge of #42500 - hsivonen:neon, r=japaric

Change `llvm.neon.*` to `llvm.arm.neon.*` in the mapping for platform intrinsics This avoids linker errors when using platform intrinsics on 32-bit ARM with NEON. Fixes hsivonen/simd#10. I don't have an explanation why the old code might have worked when the `simd` crate was written, since the new LLVM intrinsic naming seems to have existed as early as 2012. Maybe LLVM accepted two naming schemes for a few years and dropped the `llvm.neon.*` version recently? I don't know. Also, I don't know how to write a unit test for this.
rust-lang · Jun 8, 2017 · ae3d387 · ae3d387
2 parents c799b37 + 0fb8414
commit ae3d387
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diff --git a/src/etc/platform-intrinsics/arm.json b/src/etc/platform-intrinsics/arm.json
@@ -1,7 +1,7 @@
 {
     "platform": "arm_v",
     "intrinsic_prefix": "",
-    "llvm_prefix": "llvm.neon.v",
+    "llvm_prefix": "llvm.arm.neon.v",
     "number_info": {
         "signed": {
             "kind": "s",