Date: Wed, 23 Oct 2002 21:57:58 -0700 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: freebsd-current@freebsd.org Subject: Simple code produces ICE in gcc-3.2.1 Message-ID: <20021024045758.GA3936@troutmask.apl.washington.edu>
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The code fragment below causes an ICE if
k = 1. No ICE occurs if k = 0 or the
optimization level is -O0 or -O1.
troutmask:kargl[205] gcc -O2 -c c.c
c.c: In function `ice':
c.c:11: unrecognizable insn:
(insn 179 170 188 (set (reg:SI 85)
(ashift:SI (reg/v:SI 62)
(const_int 1 [0x1]))) -1 (nil)
(nil))
c.c:11: Internal compiler error in extract_insn, at recog.c:2150
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html>; for instructions.
kargl[203] gcc -v
Using built-in specs.
Configured with: FreeBSD/i386 system compiler
Thread model: posix
gcc version 3.2.1 [FreeBSD] 20021009 (prerelease)
--
Steve
void ice(int m, int n, double *f) {
int i, j, k;
/* k = 0; No ICE */
k = 1; /* ICE */
for (j = 0; j < n; j++) {
for (i = k; i < m; i++) {
f[i] = (double) (i * j);
f[i + j] = (double) ((i + 1) * j);
}
}
}
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