Compiler Errors (Emit wrong registers)

[hyungseok]

I discovered that the latest x86-64 ICX 2024.0.0 generates incorrect registers.

This error has been identified in 15 opcodes.

Buggy code.

```

void bug(int num) {

__asm__( ".intel_syntax noprefix\n"

"nop\n"

"cmpbexadd [RAX+1], EBP, R9D\n"

"cmpbxadd [RAX+1], EBP, R9D\n"

"cmplexadd [RAX+1], EBP, R9D\n"

"cmpbexadd [RAX+1], EBP, R9D\n"

"cmplxadd [RAX+1], EBP, R9D\n"

"cmpnbexadd [RAX+1], EBP, R9D\n"

"cmpnbxadd [RAX+1], EBP, R9D\n"

"cmpnlxadd [RAX+1], EBP, R9D\n"

"cmpnoxadd [RAX+1], EBP, R9D\n"

"cmpnpxadd [RAX+1], EBP, R9D\n"

"cmpnsxadd [RAX+1], EBP, R9D\n"

"cmpnzxadd [RAX+1], EBP, R9D\n"

"cmppxadd [RAX+1], EBP, R9D\n"

"cmpsxadd [RAX+1], EBP, R9D\n"

"cmpzxadd [RAX+1], EBP, R9D\n"

"nop\n"

);

}

```

Compiled Code

```

bug:
push rbp
mov rbp,rsp
mov DWORD PTR [rbp-0x4],edi
nop
cmpbexadd DWORD PTR [rax+0x1],r13d,r9d
cmpbxadd DWORD PTR [rax+0x1],r13d,r9d
cmplexadd DWORD PTR [rax+0x1],r13d,r9d
cmpbexadd DWORD PTR [rax+0x1],r13d,r9d
cmplxadd DWORD PTR [rax+0x1],r13d,r9d
cmpnbexadd DWORD PTR [rax+0x1],r13d,r9d
cmpnbxadd DWORD PTR [rax+0x1],r13d,r9d
cmpnlxadd DWORD PTR [rax+0x1],r13d,r9d
cmpnoxadd DWORD PTR [rax+0x1],r13d,r9d
cmpnpxadd DWORD PTR [rax+0x1],r13d,r9d
cmpnsxadd DWORD PTR [rax+0x1],r13d,r9d
cmpnzxadd DWORD PTR [rax+0x1],r13d,r9d
cmppxadd DWORD PTR [rax+0x1],r13d,r9d
cmpsxadd DWORD PTR [rax+0x1],r13d,r9d
cmpzxadd DWORD PTR [rax+0x1],r13d,r9d
nop
pop rbp
ret

```

I tested it through godbolt.

https://godbolt.org/z/1hrhMWY39

[Alex_Y_Intel]

I've escalated your case to our internal engineering team. 

[Alex_Y_Intel]

The fix is expected be in compiler version 2025.0 release.