A64: Make simulator compiler with optdebug

For some reason, the compiler cannot deduce the array bounds in opt
debug mode. An explicit check makes it happy.

BUG=none
R=ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/169473003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19408 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

diff --git a/src/a64/simulator-a64.cc b/src/a64/simulator-a64.cc
index c898309..640fcd6 100644 (file)
--- a/src/a64/simulator-a64.cc
+++ b/src/a64/simulator-a64.cc
@@ -2738,10 +2738,8 @@ bool Simulator::PrintValue(const char* desc) {
   }
 
   int i = CodeFromName(desc);
-  if (i == -1) {
-    return false;
-  }
-  ASSERT(i >= 0);
+  STATIC_ASSERT(kNumberOfRegisters == kNumberOfFPRegisters);
+  if (i < 0 || static_cast<unsigned>(i) >= kNumberOfFPRegisters) return false;
 
   if (desc[0] == 'v') {
     PrintF("%s %s:%s 0x%016" PRIx64 "%s (%s%s:%s %g%s %s:%s %g%s)\n",