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-rw-r--r--gcc/ChangeLog3
-rw-r--r--gcc/regmove.c5
2 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5b659e3..67c10b4 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
Thu Aug 20 19:43:44 1998 Jeffrey A Law (law@cygnus.com)
+ * remove.c (optimize_reg_copy_3): Abort instead of silently generating
+ bogus rtl.
+
* jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.
Thu Aug 20 17:35:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
diff --git a/gcc/regmove.c b/gcc/regmove.c
index ba78411..089dc46 100644
--- a/gcc/regmove.c
+++ b/gcc/regmove.c
@@ -560,7 +560,10 @@ optimize_reg_copy_3 (insn, dest, src)
{
if (GET_RTX_CLASS (GET_CODE (p)) != 'i')
continue;
- validate_replace_rtx (src_reg, subreg, p);
+ /* If we can not perform the replacement, then abort now
+ to make debugging easier. */
+ if (! validate_replace_rtx (src_reg, subreg, p))
+ abort ();
}
validate_replace_rtx (src, src_reg, insn);
}