From: Donald Lindsay <dlindsay@cygnus.com>
Date: Wed, 27 Sep 2000 21:08:33 +0000 (+0000)
Subject: Patch by rth to fix inline-of-an-inline return-value bug.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e93eff9433088e058245212256b3f03f34562817;p=gcc.git

Patch by rth to fix inline-of-an-inline return-value bug.

From-SVN: r36654
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f2386a04478..67a022e3611 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Wed Sep 27 14:00:07 2000  Donald Lindsay  <dlindsay@cygnus.com>
+
+	* integrate.c (copy_insn_list): if an ignored return value
+	is being clobbered, skip cloning that into the inline copy.
+
 2000-09-27  Joseph S. Myers  <jsm28@cam.ac.uk>
 
 	* extend.texi, invoke.texi, gcc.texi, install.texi: Consistently
diff --git a/gcc/integrate.c b/gcc/integrate.c
index 79fbce6d422..cc3a5581985 100644
--- a/gcc/integrate.c
+++ b/gcc/integrate.c
@@ -1294,6 +1294,13 @@ copy_insn_list (insns, map, static_chain_value)
 		break;
 	    }
 
+	  /* Similarly if an ignored return value is clobbered.  */
+	  else if (map->inline_target == 0
+		   && GET_CODE (pattern) == CLOBBER
+		   && GET_CODE (XEXP (pattern, 0)) == REG
+		   && REG_FUNCTION_VALUE_P (XEXP (pattern, 0)))
+	    break;
+
 	  /* If this is setting the static chain rtx, omit it.  */
 	  else if (static_chain_value != 0
 		   && set != 0