From: David Edelsohn <edelsohn@gnu.org>
Date: Sat, 8 Sep 2001 02:40:36 +0000 (+0000)
Subject: rs6000.c (num_insns_constant): Compute number of instructions more accurately.
X-Git-Tag: prereleases/libstdc++-3.0.95~2196
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4e2c1c4484d3407251679a1eb271c9163ee3edfc;p=thirdparty%2Fgcc.git

rs6000.c (num_insns_constant): Compute number of instructions more accurately.

        * rs6000.c (num_insns_constant): Compute number of instructions
        more accurately.

From-SVN: r45484
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c3dc8f418d2a..6feb13bfb738 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2001-09-07  David Edelsohn  <edelsohn@gnu.org>
+
+	* rs6000.c (num_insns_constant): Compute number of instructions
+	more accurately.
+
 2001-09-07  Jim Wilson  <wilson@redhat.com>
 
 	* alias.c (clear_reg_alias_info): New.
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index a598f18a3485..8448682721db 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -880,7 +880,8 @@ num_insns_constant (op, mode)
   if (GET_CODE (op) == CONST_INT)
     {
 #if HOST_BITS_PER_WIDE_INT == 64
-      if (mask64_operand (op, mode))
+      if ((INTVAL (op) >> 31) != 0 && (INTVAL (op) >> 31) != -1
+	  && mask64_operand (op, mode))
 	    return 2;
       else
 #endif