From: Jeff Law <law@gcc.gnu.org>
Date: Mon, 17 Aug 1998 20:09:31 +0000 (-0600)
Subject: rs6000.c (secondary_reload_class): For TARGET_ELF...
X-Git-Tag: prereleases/egcs-1.1-prerelease~49
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1cb35273dee016e5f90141a9273a2e74183f7328;p=thirdparty%2Fgcc.git

rs6000.c (secondary_reload_class): For TARGET_ELF...

�
        * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
        a BASE_REGS register is needed as an intermediate when copying
        a symbolic value into any register class other than BASE_REGS.

From-SVN: r21806
---

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index b23923bc91b4..a8389238022c 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -2187,6 +2187,16 @@ secondary_reload_class (class, mode, in)
   if (regno >= FIRST_PSEUDO_REGISTER)
     regno = -1;
 
+  /* We can not copy a symbolic operand directly into anyting other than
+     BASE_REGS for TARGET_ELF.  So indicate that a register from BASE_REGS
+     is needed as an intermediate register.  */
+  if (TARGET_ELF
+      && class != BASE_REGS
+      && (GET_CODE (in) == SYMBOL_REF
+	  || GET_CODE (in) == LABEL_REF
+	  || GET_CODE (in) == CONST))
+    return BASE_REGS;
+
   /* We can place anything into GENERAL_REGS and can put GENERAL_REGS
      into anything.  */
   if (class == GENERAL_REGS || class == BASE_REGS