DMD 2.090.1: SIGILL, Illegal instruction on (ahem) intel Pentium III

Johan j at
Wed Mar 11 22:51:32 UTC 2020

On Wednesday, 11 March 2020 at 22:18:04 UTC, kdevel wrote:
> On Thursday, 27 February 2020 at 19:24:39 UTC, Johan wrote:
>> LDC will work fine if told what processor you have: 
>> -m32 -mcpu=pentium3   (-mcpu=native should also work).
> When I "cross compile" on an AMD 64 Bit machine for pentium3
>    [AMD 64 bit] $ ldc2 -m32 -mcpu=pentium3 --linker=bfd vec.d

If you run
`ldc2 -m32 -mcpu=pentium3 --linker=bfd vec.d --output-s`
you should get file `vec.s` with the assembly that LDC generated. 
I'd be _very_ surprised if it contained SSE2 instructions (i.e. 
the "movsd xmm0" instruction).
Are you sure that the druntime you are linking with was also 
built with -m32 -mcpu=pentium3?


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