| author | "Yann E. MORIN" <yann.morin.1998@free.fr> |
| Tue Jul 31 22:27:29 2012 +0200 (2012-07-31) | |
| changeset 3018 | 7776e8369284 |
| parent 339 | bd5e0a849352 |
| permissions | -rw-r--r-- |
| yann@339 | 1 |
diff -durN gcc-3.4.6.orig/gcc/flow.c gcc-3.4.6/gcc/flow.c |
| yann@339 | 2 |
--- gcc-3.4.6.orig/gcc/flow.c 2005-09-01 22:51:09.000000000 +0200 |
| yann@339 | 3 |
+++ gcc-3.4.6/gcc/flow.c 2007-08-15 23:00:30.000000000 +0200 |
| yann@339 | 4 |
@@ -1884,6 +1884,7 @@ |
| yann@339 | 5 |
rtx set_src = SET_SRC (pc_set (BB_END (bb))); |
| yann@339 | 6 |
rtx cond_true = XEXP (set_src, 0); |
| yann@339 | 7 |
rtx reg = XEXP (cond_true, 0); |
| yann@339 | 8 |
+ enum rtx_code inv_cond; |
| yann@339 | 9 |
|
| yann@339 | 10 |
if (GET_CODE (reg) == SUBREG) |
| yann@339 | 11 |
reg = SUBREG_REG (reg); |
| yann@339 | 12 |
@@ -1892,11 +1893,13 @@ |
| yann@339 | 13 |
in the form of a comparison of a register against zero. |
| yann@339 | 14 |
If the condition is more complex than that, then it is safe |
| yann@339 | 15 |
not to record any information. */ |
| yann@339 | 16 |
- if (GET_CODE (reg) == REG |
| yann@339 | 17 |
+ inv_cond = reversed_comparison_code (cond_true, BB_END (bb)); |
| yann@339 | 18 |
+ if (inv_cond != UNKNOWN |
| yann@339 | 19 |
+ && GET_CODE (reg) == REG |
| yann@339 | 20 |
&& XEXP (cond_true, 1) == const0_rtx) |
| yann@339 | 21 |
{
|
| yann@339 | 22 |
rtx cond_false |
| yann@339 | 23 |
- = gen_rtx_fmt_ee (reverse_condition (GET_CODE (cond_true)), |
| yann@339 | 24 |
+ = gen_rtx_fmt_ee (inv_cond, |
| yann@339 | 25 |
GET_MODE (cond_true), XEXP (cond_true, 0), |
| yann@339 | 26 |
XEXP (cond_true, 1)); |
| yann@339 | 27 |
if (GET_CODE (XEXP (set_src, 1)) == PC) |