commit 611d3395e9efc0ab8dbfa4a197fa022fbd8c7204
author Scott Wakeling <scott.wakeling@linaro.org> Fri Jul 10 11:42:06 2015 +0100
committer Scott Wakeling <scott.wakeling@linaro.org> Tue Aug 04 09:02:56 2015 +0100
tree 9a0a3b6750caae13b963b244719e03b8cfb49c44
parent 0c9c5bbdd6976c21602b92d9b455e6fe5d769fb0

ARM/ARM64: Implement numberOfLeadingZeros intrinsic.

Change-Id: I4042fb7a0b75140475dcfca23e8f79d310f5333b

compiler/optimizing/intrinsics.cc

diff --git a/compiler/optimizing/intrinsics.cc b/compiler/optimizing/intrinsics.cc
index bc7da80..55e964e 100644
--- a/compiler/optimizing/intrinsics.cc
+++ b/compiler/optimizing/intrinsics.cc
@@ -103,6 +103,16 @@
           LOG(FATAL) << "Unknown/unsupported op size " << method.d.data;
           UNREACHABLE();
       }
+    case kIntrinsicNumberOfLeadingZeros:
+      switch (GetType(method.d.data, true)) {
+        case Primitive::kPrimInt:
+          return Intrinsics::kIntegerNumberOfLeadingZeros;
+        case Primitive::kPrimLong:
+          return Intrinsics::kLongNumberOfLeadingZeros;
+        default:
+          LOG(FATAL) << "Unknown/unsupported op size " << method.d.data;
+          UNREACHABLE();
+      }
 
     // Abs.
     case kIntrinsicAbsDouble: