apc-llc / gcc-5.1.1-knc Goto Github PK

Hi,
I'd like to build some libraries to enable vectorization options.
As it already noted in readme,
When I set AVX(-mavx512f) options,
it generates unsupported SSE/AVX instructions.
Is there any workaround to fix this issue other than recompile with ASM code?

I've got compiling error.

g++ -c -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../gcc -I../../gcc/build -I../../gcc/../include -I../../gcc/../libcpp/include
-o build/read-md.o ../../gcc/read-md.c
/tmp/ccYeA4jd.s: Assembler messages:
/tmp/ccYeA4jd.s:1010: Error: expecting string instruction after rep' /tmp/ccYeA4jd.s:1165: Error: expecting string instruction after rep'
/tmp/ccYeA4jd.s:1170: Error: expecting string instruction after rep' /tmp/ccYeA4jd.s:4251: Error: expecting string instruction after rep'
/tmp/ccYeA4jd.s:4386: Error: expecting string instruction after `rep'

building environment

• Ubuntu 14.04
• CPU : Intel(R) Xeon(R) CPU E5-2670 v3
• gcc (Ubuntu 4.8.5-2ubuntu1~14.04.1) 4.8.5
• g++ (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4

Hi, I wonder whether there is a llvm patch for the Xeon Phi (KNC) backend so that I can generate a native compiler for KNC with llvm.