[Bug c/51187] gcc 4.6.2 miscompiles genrecog.c when building gcc 4.5.3 with --target=avr on Debian/sparc

["plugwash at p10link dot net" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51187

Peter Green <plugwash at p10link dot net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |plugwash at p10link dot net

--- Comment #3 from Peter Green <plugwash at p10link dot net> 2011-11-17 11:47:35 UTC ---
>Have you seen this issue on other hosts than sparc32, such as x86-64 or
>sparc64?
gcc-avr fails around the same place on a number of architectures. I do not know
enough about gcc to say if they are all results of the same issue or not (note:
architecture names are debian architectures).

sparc:
gcc  -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings
-Wold-style-definition -Wc++-compat   -DHAVE_CONFIG_H -DGENERATOR_FILE  -o
build/genrecog \
        build/genrecog.o build/rtl.o build/read-rtl.o build/ggc-none.o
build/vec.o build/min-insn-modes.o build/gensupport.o build/print-rtl.o
build/errors.o ../build-sparc-linux-gnu/libiberty/libiberty.a
build/genrecog ../../src/gcc/config/avr/avr.md \
      insn-conditions.md > tmp-recog.c
/bin/bash: line 1: 22778 Bus error               build/genrecog
../../src/gcc/config/avr/avr.md insn-conditions.md > tmp-recog.c
make[3]: *** [s-recog] Error 138

sparc64:
gcc  -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings
-Wold-style-definition -Wc++-compat   -DHAVE_CONFIG_H -DGENERATOR_FILE  -o
build/genmddeps \
        build/genmddeps.o build/rtl.o build/read-rtl.o build/ggc-none.o
build/vec.o build/min-insn-modes.o build/gensupport.o build/print-rtl.o
build/errors.o ../build-sparc64-linux-gnu/libiberty/libiberty.a
build/genmddeps ../../src/gcc/config/avr/avr.md > tmp-mddeps
/bin/bash: line 1: 24043 Segmentation fault      build/genmddeps
../../src/gcc/config/avr/avr.md > tmp-mddeps
make[3]: *** [s-mddeps] Error 139

mips/mipsel:
gcc  -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings
-Wold-style-definition -Wc++-compat   -DHAVE_CONFIG_H -DGENERATOR_FILE  -o
build/genmddeps \
        build/genmddeps.o build/rtl.o build/read-rtl.o build/ggc-none.o
build/vec.o build/min-insn-modes.o build/gensupport.o build/print-rtl.o
build/errors.o ../build-mips-linux-gnu/libiberty/libiberty.a
build/genmddeps ../../src/gcc/config/avr/avr.md > tmp-mddeps
../../src/gcc/config/avr/avr.md:78: missing name or number
../../src/gcc/config/avr/avr.md:78: following context is `"predicates.md")'
make[3]: *** [s-mddeps] Error 1

sh4:
gcc  -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings
-Wold-style-definition -Wc++-compat   -DHAVE_CONFIG_H -DGENERATOR_FILE  -o
build/gengenrtl \
        build/gengenrtl.o build/errors.o
../build-sh4-linux-gnu/libiberty/libiberty.a
build/gengenrtl -h > tmp-genrtl.h
/bin/sh: line 1: 29938 Segmentation fault      build/gengenrtl -h >
tmp-genrtl.h
make[3]: *** [s-genrtl-h] Error 139

amd64, armel, hurd-i386, i386, ia64, kfreebsd-i386, kfreebsd-amd64, powerpc,
s390, armhf and s390x all built gcc-avr successfully. 

alpha, avr32, hppa, m68k and powerpcspe have not tried to build gcc-avr due to
unavailable binutils-avr.

>Have you checked if other versions of the host gcc work, such as gcc-4.6.1,
>gcc-4.5.3, or gcc-4.4.6?
I'm not aware of anyone trying this.