From: Jeffrey A Law <law@cygnus.com>
Date: Mon, 7 May 2001 15:45:47 +0000 (+0000)
Subject: except.c (sjlj_mark_call_sites): Do not search for assignments to non-argumment regis... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cb0bb87d89f7f00656c8ffe9907490bf9de34631;p=gcc.git

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

        * 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 bddbc08ef6a..dd27cd5a150 100644
--- 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 b21769c28f9..ca68f650689 100644
--- 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++;
 	      }