Bug 152840 – [4.1/ICE] building the kernel with gcc-4.1.1-r1 ends up with ICE on SH-4

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Manuel Lauss 2006-10-25 22:01:00 UTC]

GCC-4.1.1-r1 for SH-4 dies with the following ICE during
compilation of linux-2.6.19-rc2:

  CC      drivers/mmc/mmc_block.o
/mnt/data/_home/mano/linuxsh/kernel/linux-2.6.19-rc2-work/drivers/mmc/mmc_block.c: In function 'mmc_blk_issue_rq':
/mnt/data/_home/mano/linuxsh/kernel/linux-2.6.19-rc2-work/drivers/mmc/mmc_block.c:395: error: unrecognizable insn:
(insn 1116 732 738 31 (set (reg:SI 1 r1 [576])
        (const_int 2147483972 [0x80000144])) -1 (nil)
    (nil))
/mnt/data/_home/mano/linuxsh/kernel/linux-2.6.19-rc2-work/drivers/mmc/mmc_block.c:395: internal compiler error: in extract_insn, at recog.c:2084
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugs.gentoo.org/> for instructions.
Preprocessed source stored into /tmp/ccPmM39t.out file, please attach this to your bugreport.
make[3]: *** [drivers/mmc/mmc_block.o] Error 1
make[2]: *** [drivers/mmc] Error 2
make[1]: *** [drivers] Error 2
make: *** [_all] Error 2

# sh4-unknown-linux-gnu-gcc -v
Using built-in specs.
Target: sh4-unknown-linux-gnu
Configured with: /var/tmp/cross/sh4-unknown-linux-gnu/portage/cross-sh4-unknown-linux-gnu/gcc-4.1.1-r1/work/gcc-4.1.1/configure --prefix=/usr --bindir=/usr/i686-pc-linux-gnu/sh4-unknown-linux-gnu/gcc-bin/4.1.1 --includedir=/usr/lib/gcc/sh4-unknown-linux-gnu/4.1.1/include --datadir=/usr/share/gcc-data/sh4-unknown-linux-gnu/4.1.1 --mandir=/usr/share/gcc-data/sh4-unknown-linux-gnu/4.1.1/man --infodir=/usr/share/gcc-data/sh4-unknown-linux-gnu/4.1.1/info --with-gxx-include-dir=/usr/lib/gcc/sh4-unknown-linux-gnu/4.1.1/include/g++-v4 --host=i686-pc-linux-gnu --target=sh4-unknown-linux-gnu --build=i686-pc-linux-gnu --disable-altivec --disable-nls --with-system-zlib --disable-checking --disable-werror --disable-libunwind-exceptions --disable-multilib --disable-libmudflap --disable-libssp --disable-libgcj --enable-languages=c,c++ --with-sysroot=/usr/sh4-unknown-linux-gnu --enable-__cxa_atexit --enable-clocale=gnu
Thread model: posix
gcc version 4.1.1 (Gentoo 4.1.1-r1)

3.4.6 is good. I consider this bug very minor since gcc>=4 miscompiles
sh-kernels anyway.

[Comment 1 Manuel Lauss 2006-10-25 22:01:51 UTC]

Created attachment 100507 [details]
The preprocessed file which triggers the ICE

[Comment 2 SpanKY 2006-10-25 22:56:45 UTC]

Created attachment 100509 [details]
ice.i

reduced test case

[Comment 3 Manuel Lauss 2007-03-05 11:27:04 UTC]

The fix by Kazumoto Kojima works fine, my test kernels boot and
MMC interface is also okay. Can this patch please be added to the
4.1.1/4.1.2 gentoo patch-tarball?

[Comment 4 SpanKY 2007-03-06 19:09:35 UTC]

it already has been queued ... it'll be released with gcc-4.1.2-r1