Mercurial > hg > graal-jvmci-8

diff src/cpu/x86/vm/templateInterpreter_x86_64.cpp @ 8873:e961c11b85fe

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8011102: Clear AVX registers after return from JNI call Summary: Execute vzeroupper instruction after JNI call and on exits in jit compiled code which use 256bit vectors. Reviewed-by: roland
author kvn
date Wed, 03 Apr 2013 11:12:57 -0700
parents 0094485b46c7
children b9a918201d47 aeaca88565e6
line wrap: on
line diff
--- a/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Tue Apr 02 09:30:07 2013 +0200
+++ b/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Wed Apr 03 11:12:57 2013 -0700
@@ -1079,15 +1079,8 @@
   __ call(rax);
   // result potentially in rax or xmm0
 
-  // Depending on runtime options, either restore the MXCSR
-  // register after returning from the JNI Call or verify that
-  // it wasn't changed during -Xcheck:jni.
-  if (RestoreMXCSROnJNICalls) {
-    __ ldmxcsr(ExternalAddress(StubRoutines::x86::mxcsr_std()));
-  }
-  else if (CheckJNICalls) {
-    __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::x86::verify_mxcsr_entry())));
-  }
+  // Verify or restore cpu control state after JNI call
+  __ restore_cpu_control_state_after_jni();
 
   // NOTE: The order of these pushes is known to frame::interpreter_frame_result
   // in order to extract the result of a method call. If the order of these