commit a75396f25b870ef51bf8d40daeef3846a775357d
author Stephen Hines <srhines@google.com> Tue Mar 27 11:21:04 2012 -0700
committer Stephen Hines <srhines@google.com> Tue Mar 27 19:31:43 2012 -0700
tree 143c4289e830dd0a0a30dec9d04fab87cc93a335
parent e1fd804a58c0ed67c75566c784d0b20d81e97ada

NEON cannot be used if we require full precision FP.

BUG=4540719

Change-Id: I157d8d90bfa7eb0cf8da34bcf210d6e318e4e034

lib/ExecutionEngine/Compiler.cpp

diff --git a/lib/ExecutionEngine/Compiler.cpp b/lib/ExecutionEngine/Compiler.cpp
index 8a55e38..5895057 100644
--- a/lib/ExecutionEngine/Compiler.cpp
+++ b/lib/ExecutionEngine/Compiler.cpp
@@ -302,6 +302,14 @@
   if (hasError())
     goto on_bcc_compile_error;
 
+#if defined(ARCH_ARM_HAVE_NEON)
+  // Full-precision means we have to disable NEON
+  if (ME.getRSFloatPrecision() == bcinfo::RS_FP_Full) {
+    Features.push_back("-neon");
+    Features.push_back("-neonfp");
+  }
+#endif
+
   if (!CPU.empty() || !Features.empty()) {
     llvm::SubtargetFeatures F;