mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-25 23:41:05 +00:00
28 lines
1.1 KiB
Diff
28 lines
1.1 KiB
Diff
|
diff -durN gcc-3.4.6.orig/gcc/flow.c gcc-3.4.6/gcc/flow.c
|
||
|
|
--- gcc-3.4.6.orig/gcc/flow.c 2005-09-01 22:51:09.000000000 +0200
|
||
|
|
+++ gcc-3.4.6/gcc/flow.c 2007-08-15 23:00:30.000000000 +0200
|
||
|
|
@@ -1884,6 +1884,7 @@
|
||
|
|
rtx set_src = SET_SRC (pc_set (BB_END (bb)));
|
||
|
|
rtx cond_true = XEXP (set_src, 0);
|
||
|
|
rtx reg = XEXP (cond_true, 0);
|
||
|
|
+ enum rtx_code inv_cond;
|
||
|
|
|
||
|
|
if (GET_CODE (reg) == SUBREG)
|
||
|
|
reg = SUBREG_REG (reg);
|
||
|
|
@@ -1892,11 +1893,13 @@
|
||
|
|
in the form of a comparison of a register against zero.
|
||
|
|
If the condition is more complex than that, then it is safe
|
||
|
|
not to record any information. */
|
||
|
|
- if (GET_CODE (reg) == REG
|
||
|
|
+ inv_cond = reversed_comparison_code (cond_true, BB_END (bb));
|
||
|
|
+ if (inv_cond != UNKNOWN
|
||
|
|
+ && GET_CODE (reg) == REG
|
||
|
|
&& XEXP (cond_true, 1) == const0_rtx)
|
||
|
|
{
|
||
|
|
rtx cond_false
|
||
|
|
- = gen_rtx_fmt_ee (reverse_condition (GET_CODE (cond_true)),
|
||
|
|
+ = gen_rtx_fmt_ee (inv_cond,
|
||
|
|
GET_MODE (cond_true), XEXP (cond_true, 0),
|
||
|
|
XEXP (cond_true, 1));
|
||
|
|
if (GET_CODE (XEXP (set_src, 1)) == PC)
|