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git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5281

diff --git a/coregrind/m_dispatch/dispatch-x86-linux.S b/coregrind/m_dispatch/dispatch-x86-linux.S
index 63b5261687a095eba3fb693c73e43f0b78f75549..b448ba4c9c104b2c31d60282c1eb7fdece13f48c 100644 (file)
--- a/coregrind/m_dispatch/dispatch-x86-linux.S
+++ b/coregrind/m_dispatch/dispatch-x86-linux.S
@@ -101,6 +101,7 @@ dispatch_boring:
        jnz  fast_lookup_failed
        /* increment bb profile counter */
        movl VG_(tt_fastN)(,%ebx,4), %edx
+       /* Use "addl $1", not "incl", to avoid partial-flags stall on P4 */
        addl $1, (%edx)
 
        /* Found a match.  Call tce[1], which is 8 bytes along, since