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Re: [RFC] POWER8 default for PPC64LE
- From: Andreas Schwab <schwab at suse dot de>
- To: David Edelsohn <dje dot gcc at gmail dot com>
- Cc: Peter Bergner <bergner at vnet dot ibm dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>, Jeff Law <law at redhat dot com>, Michael Meissner <meissner at linux dot vnet dot ibm dot com>, Ulrich Weigand <uweigand at de dot ibm dot com>
- Date: Wed, 21 Jan 2015 12:22:49 +0100
- Subject: Re: [RFC] POWER8 default for PPC64LE
- Authentication-results: sourceware.org; auth=none
- References: <CAGWvnyk5WC96w5RbOq-D_2Pytur+bhqoHA5ZpRBe5Q5iwyiStg at mail dot gmail dot com> <54B6D35C dot 9010505 at redhat dot com> <1421336431 dot 5593 dot 73 dot camel at otta> <CAGWvny=7kwzDMrq2YoU8snVd6QtDTffRPex4wGhY+ER1=mrwHg at mail dot gmail dot com>
David Edelsohn <dje.gcc@gmail.com> writes:
> Index: gcc/config/rs6000/rs6000.c
> ===================================================================
> --- gcc/config/rs6000/rs6000.c (revision 219747)
> +++ gcc/config/rs6000/rs6000.c (working copy)
> @@ -5072,6 +5072,28 @@ rs6000_file_start (void)
> putc ('\n', file);
> }
>
> +#ifdef USING_ELFOS_H
> + if (rs6000_default_cpu == 0 || rs6000_default_cpu[0] == '\0'
> + || !global_options_set.x_rs6000_cpu_index)
> + {
> + fputs ("\t.machine ", asm_out_file);
> + if ((TARGET_DEFAULT & OPTION_MASK_DIRECT_MOVE) != 0)
> + fputs ("power8\n", asm_out_file);
> + else if ((TARGET_DEFAULT & OPTION_MASK_POPCNTD) != 0)
> + fputs ("power7\n", asm_out_file);
> + else if ((TARGET_DEFAULT & OPTION_MASK_CMPB) != 0)
> + fputs ("power6\n", asm_out_file);
> + else if ((TARGET_DEFAULT & OPTION_MASK_POPCNTB) != 0)
> + fputs ("power5\n", asm_out_file);
> + else if ((TARGET_DEFAULT & OPTION_MASK_MFCRF) != 0)
> + fputs ("power4\n", asm_out_file);
> + else if ((TARGET_DEFAULT & OPTION_MASK_POWERPC64) != 0)
> + fputs ("ppc64\n", asm_out_file);
> + else
> + fputs ("ppc\n", asm_out_file);
> + }
> +#endif
> +
This is wrong, it doesn't account for -m64 on a --with-cpu=default32
compiler.
/home/abuild/rpmbuild/BUILD/gcc-5.0.0-r219892/obj-powerpc64-suse-linux/./gcc/xgcc -B/home/abuild/rpmbuild/BUILD/gcc-5.0.0-r219892/obj-powerpc64-suse-linux/./gcc/ -B/usr/powerpc64-suse-linux/bin/ -B/usr/powerpc64-suse-linux/lib/ -isystem /usr/powerpc64-suse-linux/include -isystem /usr/powerpc64-suse-linux/sys-include -fmessage-length=0 -grecord-gcc-switches -O2 -D_FORTIFY_SOURCE=2 -funwind-tables -fasynchronous-unwind-tables -g -U_FORTIFY_SOURCE -m64 -O2 -fmessage-length=0 -grecord-gcc-switches -O2 -D_FORTIFY_SOURCE=2 -funwind-tables -fasynchronous-unwind-tables -g -U_FORTIFY_SOURCE -DIN_GCC -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -mlong-double-128 -mno-minimal-toc -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -fPIC -mlong-double-128 -mno-minimal-toc -I. -I. -I../../.././gcc -I../../../../libgcc -I../../../../libgcc/. -I../../../../libgcc/../gcc -I../../../../libgcc/../include -I../../../../libgcc/../libdecnumber/dpd -I../../../../libgcc/../libdecnumber -DHAVE_CC_TLS -o _addvsi3.o -MT _addvsi3.o -MD -MP -MF _addvsi3.dep -DL_addvsi3 -c ../../../../libgcc/libgcc2.c -fvisibility=hidden -DHIDE_EXPORTS
/tmp/ccaoVOii.s: Assembler messages:
/tmp/ccaoVOii.s:33: Error: junk at end of line: `1'
/tmp/ccaoVOii.s:55: Error: junk at end of line: `1'
/tmp/ccaoVOii.s:95: Error: junk at end of line: `1'
/tmp/ccaoVOii.s:116: Error: junk at end of line: `1'
Makefile:466: recipe for target '_addvsi3.o' failed
make[5]: *** [_addvsi3.o] Error 1
See
<https://build.opensuse.org/package/live_build_log/devel:gcc/gcc5/openSUSE_Factory_PPC/ppc>
for the full log file.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."