Hello,
I am trying to build gollvm on ARM with a few experimental changes, looks
like some ARM Neon intrinsics in
libgo/runtime/aeshash.c are not supported by GCC 7/8, wondering if it could
be solved by any additional compile
options, or should the latest gcc-9 or clang be used?
clang could compile this single file without errors but I haven't made it
pass the CMake test, and seems
that building gcc-9 on my platform will take much longer time than
expected, it would be of great help if the issue
could be addressed with gcc-7/8.
Any comment is highly appreciated!
------ errors issued by gcc
aeshash.c:733:11: error: incompatible types when assigning to type
‘uint8x16x3_t {aka struct uint8x16x3_t}’ from type ‘int’
avseed3 = vld1q_u8_x3((uint8*)(pseed + 3));
^
aeshash.c:754:10: error: incompatible types when assigning to type
‘uint8x16x2_t {aka struct uint8x16x2_t}’ from type ‘int’
avval2 = vld1q_u8_x2((uint8*)(p));
^
It turns out:
gcc-7.4.0 doesn't recognize both "vld1q_u8_x3" and "vld1q_u8_x2"
gcc-8.3.0 doesn't recognize "vld1q_u8_x3"
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