Bootstrap failure with BOOT_CFLAGS="-g -O4"

[Klaus-Georg Adams]

Since about two weeks I get bootstrap failures at the execution of
the stage1 gencodes:

stage1/xgcc -Bstage1/  -DIN_GCC   -DUSE_GNULIBC_1 -W -Wall -g -O4  -DHAVE_CONFIG_H -DHAIFA  -o gencodes \
 gencodes.o rtl.o bitmap.o print-rtl.o ` case "obstack.o" in ?*) echo obstack.o ;; esac ` ` case "" in ?*) echo  ;; esac ` ` case "" in ?*) echo  ;; esac ` ` case "" in ?*) echo  ;; esac ` ` case "" in ?*) echo  ;; esac ` 
./gencodes /work/adams/egcs-cvs/gcc/config/i386/i386.md > tmp-codes.h
switch format wrong in rtl.read_rtx(). format was: *.
	file position: 3417
/work/adams/egcs-cvs/gcc/rtl.c:853: Internal compiler error in function read_rtx

egcs was configured with
/work/adams/egcs-cvs/configure --prefix=/work/egcs --enable-haifa
--enable-shared

Platforms are i686-pc-linux-gnulibc1 and i686-pc-linux-gnu.

When bootstrapping with "-g -O2" the compilation proceeds normally.
Please let me know how I can help track this down.

-- kga
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Klaus-Georg Adams        Email: Klaus-Georg.Adams@chemie.uni-karlsruhe.de
Institut f. Anorg. Chemie, Lehrstuhl II            Tel: 49(0)721 608 3485
Universität Karlsruhe, D-76128 Karlsruhe
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