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--- gcc-3.4.0/gcc/flow.c.reverse-compare 2004-02-27 22:39:19.000000000 -0500
+++ gcc-3.4.0/gcc/flow.c 2004-04-24 16:36:00.000000000 -0400
@@ -1843,6 +1843,7 @@
regset_head diff_head;
regset diff = INITIALIZE_REG_SET (diff_head);
basic_block bb_true, bb_false;
+ enum rtx_code reversed_code;
int i;
/* Identify the successor blocks. */
@@ -1889,8 +1890,11 @@
if (GET_CODE (reg) == REG
&& XEXP (cond_true, 1) == const0_rtx)
{
- rtx cond_false
- = gen_rtx_fmt_ee (reverse_condition (GET_CODE (cond_true)),
+ rtx cond_false;
+ reversed_code = reverse_condition (GET_CODE (cond_true));
+ if (reversed_code == UNKNOWN)
+ goto skip;
+ cond_false = gen_rtx_fmt_ee (reversed_code,
GET_MODE (cond_true), XEXP (cond_true, 0),
XEXP (cond_true, 1));
if (GET_CODE (XEXP (set_src, 1)) == PC)
@@ -1925,6 +1929,7 @@
}
}
+ skip:
FREE_REG_SET (diff);
}
#endif
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