except.c (sjlj_mark_call_sites): Do not search for assignments to non-argumment regis...

        * except.c (sjlj_mark_call_sites): Do not search for assignments to
        non-argumment registers that are mentioned in CALL_INSN_FUNCTION_USAGE.

From-SVN: r41896

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bddbc08ef6a584ead716c80de96ff31d0cd3a580..dd27cd5a150e31c4e433d985ae354bc78cb5bee1 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
 Mon May  7 09:30:14 2001  Jeffrey A Law  (law@cygnus.com)
 
+       * except.c (sjlj_mark_call_sites): Do not search for assignments to
+       non-argumment registers that are mentioned in CALL_INSN_FUNCTION_USAGE.
+
        * pa.h (MAX_LONG_TYPE_SIZE): Should be 32, not 64.
        * pa-64.h (*_TYPE_SIZE): Undefine before redefining.
 

diff --git a/gcc/except.c b/gcc/except.c
index b21769c28f97418d5eb681e8b192cf2b0e43f509..ca68f6506893a054d4135d675de4c0b76ac8f5c6 100644 (file)
--- a/gcc/except.c
+++ b/gcc/except.c
@@ -2087,6 +2087,11 @@ sjlj_mark_call_sites (lp_info)
                if (REGNO (XEXP (XEXP (p, 0), 0)) >= FIRST_PSEUDO_REGISTER)
                  abort ();
 
+               /* We only care about registers which can hold function
+                  arguments.  */
+               if (! FUNCTION_ARG_REGNO_P (REGNO (XEXP (XEXP (p, 0), 0))))
+                 continue;
+
                SET_HARD_REG_BIT (parm_regs, REGNO (XEXP (XEXP (p, 0), 0)));
                nparm_regs++;
              }