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SubjectRe: {standard input}:1174: Error: inappropriate arguments for opcode 'mpydu'
On Sun, 27 Sep 2020, Rong Chen wrote:

> Hi Nicolas,
>
> Thanks for the feedback, the error still remains with gcc 10.2.0:

I've created the simplest test case that can be. You won't believe it.

Test case:

$ cat test.c
unsigned int test(unsigned int x, unsigned long long y)
{
y /= 0x20000000;
if (x > 1)
y *= x;
return y;
}
$ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:~/0day/gcc-9.3.0-nolibc/arc-elf/libexec/gcc/arc-elf/9.3.0
$ ~/0day/gcc-9.3.0-nolibc/arc-elf/bin/arc-elf-gcc -mcpu=hs38 -mbig-endian -O2 -c test.c
/tmp/cc0GAomh.s: Assembler messages:
/tmp/cc0GAomh.s:21: Error: inappropriate arguments for opcode 'mpydu'

I know nothing about ARC. Please anyone take it over from here.


Nicolas

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