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--- gcc-3.3.3/gcc/flow.c~ 2003-07-30 01:57:24.000000000 +0100
+++ gcc-3.3.3/gcc/flow.c 2004-04-23 19:23:43.000000000 +0100
@@ -1904,6 +1904,7 @@
regset diff = INITIALIZE_REG_SET (diff_head);
basic_block bb_true, bb_false;
rtx cond_true, cond_false, set_src;
+ enum rtx_code reversed_code;
int i;
/* Identify the successor blocks. */
@@ -1934,7 +1935,11 @@
/* Extract the condition from the branch. */
set_src = SET_SRC (pc_set (bb->end));
cond_true = XEXP (set_src, 0);
- cond_false = gen_rtx_fmt_ee (reverse_condition (GET_CODE (cond_true)),
+ 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)
@@ -1980,6 +1985,7 @@
});
}
+ skip:
FREE_REG_SET (diff);
}
#endif
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