--- a/hotspot/src/share/vm/opto/matcher.hpp Fri Mar 25 18:19:22 2011 -0400
+++ b/hotspot/src/share/vm/opto/matcher.hpp Fri Mar 25 09:35:39 2011 +0100
@@ -427,6 +427,11 @@
// Do ints take an entire long register or just half?
static const bool int_in_long;
+ // Do the processor's shift instructions only use the low 5/6 bits
+ // of the count for 32/64 bit ints? If not we need to do the masking
+ // ourselves.
+ static const bool need_masked_shift_count;
+
// This routine is run whenever a graph fails to match.
// If it returns, the compiler should bailout to interpreter without error.
// In non-product mode, SoftMatchFailure is false to detect non-canonical