[Bug debug/25023] [4.1/4.2 Regression] ICE in def_cfa_1, at dwarf2out.c:792

["rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #13 from rguenth at gcc dot gnu dot org  2005-12-09 12:50 -------
The patch breaks bootstrap on i686 linux:

/usr/src/packages/BUILD/gcc-4.1.0-20051209/obj-i586-suse-linux/./gcc/xgcc
-B/usr/src/packages/BUILD/gcc-4.1.0-20051209/obj-i586-suse-linux/./gcc/
-B/usr/i586-suse-linux/bin/ -B/usr/i586-suse-linux/lib/ -isystem
/usr/i586-suse-linux/include -isystem /usr/i586-suse-linux/sys-include
-DHAVE_CONFIG_H -I. -I../../../libmudflap -I. -Wall -ffunction-sections
-fdata-sections -O2 -O2 -march=i586 -mtune=i686 -fmessage-length=0 -Wall
-D_FORTIFY_SOURCE=2 -g -U_FORTIFY_SOURCE -MT mf-runtime.lo -MD -MP -MF
.deps/mf-runtime.Tpo -c ../../../libmudflap/mf-runtime.c  -fPIC -DPIC -o
.libs/mf-runtime.o
../../../libmudflap/mf-runtime.c: In function '__mfu_check':
../../../libmudflap/mf-runtime.c:1032: error: unrecognizable insn:
(insn 1384 1383 1385 31 ../../../libmudflap/mf-runtime.c:1457 (set (mem:HI
(pre_dec:SI (reg/f:SI 7 sp)) [0 S2 A8])
        (reg:HI 0 ax [orig:182 __mf_lc_shift ] [182])) -1 (nil)
    (nil))
../../../libmudflap/mf-runtime.c:1032: internal compiler error: in
extract_insn, at recog.c:2084
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.suse.de/feedback> for instructions.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25023