ARM: Fast path for compare against constant.

src/arm/constants-arm.h

Index: src/arm/constants-arm.h
===================================================================
--- src/arm/constants-arm.h	(revision 8734)
+++ src/arm/constants-arm.h	(working copy)
@@ -176,6 +176,21 @@
 }
 
 
+inline bool EvalComparison(Condition cond, double op1, double op2) {

[Mads Ager (chromium), 2011/07/27 13:05:05]

Why not have this in the code generator and switch on the token instead of going
from token to condition to operation?

[Alexandre, 2011/07/28 13:42:16]

Done.

+  switch (cond) {
+    case eq: return (op1 == op2);
+    case ne: return (op1 != op2);
+    case lt: return (op1 < op2);
+    case gt: return (op1 > op2);
+    case le: return (op1 <= op2);
+    case ge: return (op1 >= op2);
+    default:
+      UNREACHABLE();
+      return false;
+  }
+}
+
+
 // -----------------------------------------------------------------------------
 // Instructions encoding.