[Bug tree-optimization/105139] New: GCC produces vmovw instruction with an incorrect argument for -O3 -march=sapphirerapids

[vsevolod.livinskiy at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105139

            Bug ID: 105139
           Summary: GCC produces vmovw instruction with an incorrect
                    argument for -O3 -march=sapphirerapids
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vsevolod.livinskiy at gmail dot com
  Target Milestone: ---

Link to the Compiler Explorer: https://godbolt.org/z/9GTPqWfn8

It looks like GCC produced vmovw instruction with an incorrect argument
(https://software.intel.com/content/www/us/en/develop/download/intel-avx512-fp16-architecture-specification.html)

Reproducer:
extern long c[];
extern int d[];
long a;
long e(long f) { return f < a ? f : a; }
void g() {
  for (signed b = 0; b < 4028643; b++)
    d[b] = e((char)(~c[b]));
}

Error:
>$ g++ -O3 -march=sapphirerapids -c func.cpp
/tmp/ccB2zLYr.s: Assembler messages:
/tmp/ccB2zLYr.s:92: Error: operand type mismatch for `vmovw'

gcc version 12.0.1 20220401 (git://gcc.gnu.org/git/gcc.git:master
15d683d4f0b390b27c54a7c92c6e4f33195bdc93)

P.S. I'm not sure if "tree-optimization" is the correct classification for this
fault