gcc-3.4-sparc-pr16430-fix.patch

linux下编译交叉工具链的工具源码

Message-ID: <33159.207.230.144.240.1093980498.squirrel@207.230.144.240>
Date: Tue, 31 Aug 2004 14:28:18 -0500 (CDT)
Subject: Crosstool 0.28-rc35
From: "Jason Rothstein" <[e-mail]>
To: [e-mail]

Could you please add the patches in GCC PR 16430 to GCC 3.4.1?

http://gcc.gnu.org/PR16430

These fix one of 2 current ICE conditions when building a sparc64 ada
compilers.


http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/sparc/sparc.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.271.4.16&r2=1.271.4.17

===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/sparc/sparc.c,v
retrieving revision 1.271.4.16
retrieving revision 1.271.4.17
diff -u -r1.271.4.16 -r1.271.4.17
--- gcc/gcc/config/sparc/sparc.c	2004/07/08 13:00:56	1.271.4.16
+++ gcc/gcc/config/sparc/sparc.c	2004/07/08 14:36:51	1.271.4.17
@@ -5808,6 +5808,18 @@
 	    abort ();
 
 	  mode = mode_for_size (bytes * BITS_PER_UNIT, MODE_INT, 0);
+
+	  /* ??? We probably should have made the same ABI change in
+	     3.4.0 as the one we made for unions.   The latter was
+	     required by the SCD though, while the former is not
+	     specified, so we favored compatibility and efficiency.
+
+	     Now we're stuck for aggregates larger than 16 bytes,
+	     because OImode vanished in the meantime.  Let's not
+	     try to be unduly clever, and simply follow the ABI
+	     for unions in that case.  */
+	  if (mode == BLKmode)
+	    return function_arg_union_value (bytes, mode, regbase);
 	}
       else if (GET_MODE_CLASS (mode) == MODE_INT
 	       && GET_MODE_SIZE (mode) < UNITS_PER_WORD)