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[Bug rtl-optimization/24265] New: ICE: in extract_insn, at recog.c:2084 with -O -fgcse -fmove-loop-invariants -mtune=pentiumpro
- From: "ferdinandw+gcc at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 7 Oct 2005 19:48:48 -0000
- Subject: [Bug rtl-optimization/24265] New: ICE: in extract_insn, at recog.c:2084 with -O -fgcse -fmove-loop-invariants -mtune=pentiumpro
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
/tmp/gcc41/libexec/gcc/i686-pc-linux-gnu/4.1.0/cc1 -quiet -v test.c -dumpbase
test.c -mtune=pentiumpro -auxbase-strip test.o -O -version
-fmove-loop-invariants -fgcse -o test.o
GNU C version 4.1.0 20051007 (experimental) (i686-pc-linux-gnu)
compiled by GNU C version 4.1.0 20051007 (experimental).
GGC heuristics: --param ggc-min-expand=99 --param ggc-min-heapsize=129306
Compiler executable checksum: a278381769db4d67bad1ec630ceb45dd
test.c: In function 'foo':
test.c:14: error: unrecognizable insn:
(insn 21 16 39 0 (set (reg:DF 64)
(const_double:DF -858993460 [0xcccccccc]
2.00000000000000011102230246251565404236316680908e-1 [0x0.ccccccccccccdp-2]))
-1 (nil)
(nil))
test.c:14: internal compiler error: in extract_insn, at recog.c:2084
Configured with: ../gcc/configure --prefix=/tmp/gcc41 --enable-languages=c
--disable-nls --enable-checking=assert,rtlflag,misc
========================================================
void dset (double d1, double d2);
void foo ()
{
int i;
double m, d = 0.2;
dset (m,d);
for (i=1; i<=3; i++) {
dset (m,d);
}
}
========================================================
d needs to have the same value in both calls to dset for this ICE to occur.
--
Summary: ICE: in extract_insn, at recog.c:2084 with -O -fgcse -
fmove-loop-invariants -mtune=pentiumpro
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ferdinandw+gcc at gmail dot com
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24265