On Tue, Dec 22, 2015 at 12:13 PM, Peter Bergner <berg...@vnet.ibm.com> wrote: > Currently, -mcpu=powerpc64le correctly sets the TARGET_* flags for an > LE compile, meaning it mimics a -mcpu=power8 compile, but it doesn't > pass the correct -mpower8/-mpwr8 option to the assembler, so we die > with lots of assembler errors on POWER8 instructions. This patch > fixes things so we pass the correct assembler option when using > -mcpu=powerpc64le. > > This passes bootstrap/regtesting on powerpc64le-linux. Ok for mainline? > Ok for the release branches too after testing? > > Peter > > > gcc/ > PR target/68772 > * config/rs6000/rs6000.h (ASM_CPU_SPEC): For -mcpu=powerpc64le, > pass %(asm_cpu_power8)/-mpwr8. > * config/rs6000/aix53.h: Likewise. > * config/rs6000/aix61.h: Likewise. > * config/rs6000/aix71.h: Likewise. > > gcc/testsuite/ > PR target/68772 > * gcc.target/powerpc/pr68872.c: New test.
AIX does not support PPC64LE, so the aix53.h, aix61.h and aix71.h changes should not be applied. Ultimately rs6000_file_start ".machine" directive support should be strengthened to handle -mcpu=. Okay with just the rs6000.h change and new testcase. Thanks, David
