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-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/config/rs6000/rs6000.c3
2 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c3dc8f4..6feb13b 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 a598f18..8448682 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