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yann@1
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1 |
See http://gcc.gnu.org/PR15068
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yann@1
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2 |
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yann@1
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3 |
Fixes error
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yann@1
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4 |
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yann@1
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5 |
../sysdeps/generic/s_fmax.c: In function `__fmax':
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yann@1
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6 |
../sysdeps/generic/s_fmax.c:28: internal compiler error: in elim_reg_cond, at flow.c:3257
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yann@1
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7 |
Please submit a full bug report,
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yann@1
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8 |
with preprocessed source if appropriate.
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yann@1
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9 |
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
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yann@1
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10 |
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
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yann@1
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11 |
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'
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yann@1
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12 |
make[1]: *** [math/others] Error 2
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yann@1
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13 |
make[1]: Leaving directory `/home/dank/wk/crosstool-0.28-rc35/build/arm-unknown-linux-gnu/gcc-3.4.1-glibc-20040822/glibc-20040822'
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yann@1
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14 |
make: *** [all] Error 2
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yann@1
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15 |
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yann@1
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16 |
[ rediffed against gcc-3.4.1, with elbow grease, ending up with same thing as
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yann@1
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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 ]
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yann@1
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18 |
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yann@1
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19 |
--- gcc-3.4.1/gcc/flow.c.old 2004-02-27 19:39:19.000000000 -0800
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yann@1
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+++ gcc-3.4.1/gcc/flow.c 2004-08-26 07:29:46.000000000 -0700
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yann@1
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21 |
@@ -1878,6 +1878,7 @@
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yann@1
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rtx set_src = SET_SRC (pc_set (BB_END (bb)));
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yann@1
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rtx cond_true = XEXP (set_src, 0);
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yann@1
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24 |
rtx reg = XEXP (cond_true, 0);
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yann@1
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25 |
+ enum rtx_code inv_cond;
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yann@1
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26 |
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yann@1
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27 |
if (GET_CODE (reg) == SUBREG)
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yann@1
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28 |
reg = SUBREG_REG (reg);
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yann@1
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29 |
@@ -1886,11 +1887,13 @@
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yann@1
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in the form of a comparison of a register against zero.
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yann@1
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31 |
If the condition is more complex than that, then it is safe
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yann@1
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32 |
not to record any information. */
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yann@1
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33 |
- if (GET_CODE (reg) == REG
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yann@1
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34 |
+ inv_cond = reversed_comparison_code (cond_true, BB_END (bb));
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yann@1
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35 |
+ if (inv_cond != UNKNOWN
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yann@1
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+ && GET_CODE (reg) == REG
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yann@1
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&& XEXP (cond_true, 1) == const0_rtx)
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yann@1
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38 |
{
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yann@1
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39 |
rtx cond_false
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yann@1
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- = gen_rtx_fmt_ee (reverse_condition (GET_CODE (cond_true)),
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yann@1
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+ = gen_rtx_fmt_ee (inv_cond,
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yann@1
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GET_MODE (cond_true), XEXP (cond_true, 0),
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yann@1
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XEXP (cond_true, 1));
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yann@1
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44 |
if (GET_CODE (XEXP (set_src, 1)) == PC)
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