45 lines
2.0 KiB
Diff
45 lines
2.0 KiB
Diff
See http://gcc.gnu.org/PR15068
|
|
|
|
Fixes error
|
|
|
|
../sysdeps/generic/s_fmax.c: In function `__fmax':
|
|
../sysdeps/generic/s_fmax.c:28: internal compiler error: in elim_reg_cond, at flow.c:3257
|
|
Please submit a full bug report,
|
|
with preprocessed source if appropriate.
|
|
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
|
|
make[2]: *** [/home/dank/wk/crosstool-0.28-rc35/build/arm-unknown-linux-gnu/gcc-3.4.1-glibc-20040822/build-glibc/math/s_fmax.o] Error 1
|
|
make[2]: Leaving directory `/home/dank/wk/crosstool-0.28-rc35/build/arm-unknown-linux-gnu/gcc-3.4.1-glibc-20040822/glibc-20040822/math'
|
|
make[1]: *** [math/others] Error 2
|
|
make[1]: Leaving directory `/home/dank/wk/crosstool-0.28-rc35/build/arm-unknown-linux-gnu/gcc-3.4.1-glibc-20040822/glibc-20040822'
|
|
make: *** [all] Error 2
|
|
|
|
[ rediffed against gcc-3.4.1, with elbow grease, ending up with same thing as
|
|
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/flow.c.diff?cvsroot=gcc&only_with_tag=csl-arm-branch&r1=1.563.4.2&r2=1.563.4.3 ]
|
|
|
|
--- gcc-3.4.1/gcc/flow.c.old 2004-02-27 19:39:19.000000000 -0800
|
|
+++ gcc-3.4.1/gcc/flow.c 2004-08-26 07:29:46.000000000 -0700
|
|
@@ -1878,6 +1878,7 @@
|
|
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);
|
|
@@ -1886,11 +1887,13 @@
|
|
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)
|