[PATCH] i386: support micro-levels in target{,_clone} attrs [PR101696]

[Martin Liška]

On 8/12/21 7:35 PM, H.J. Lu wrote:
> What happens for arch=x86-64-v5?

pr101696.c:5:55: error: bad value (‘x86-64-v5’) for ‘target("arch=")’ attribute

     5 | __attribute__ ((target ("arch=x86-64-v5"))) void foo () {  __builtin_printf ("arch=x86-64-v4\n"); }

       |                                                       ^

pr101696.c:5:55: note: valid arguments to ‘target("arch=")’ attribute are: nocona core2 nehalem corei7 westmere sandybridge corei7-avx ivybridge core-avx-i haswell core-avx2 broadwell skylake skylake-avx512 cannonlake icelake-client rocketlake icelake-server cascadelake tigerlake cooperlake sapphirerapids alderlake bonnell atom silvermont slm goldmont goldmont-plus tremont knl knm x86-64 x86-64-v2 x86-64-v3 x86-64-v4 eden-x2 nano nano-1000 nano-2000 nano-3000 nano-x2 eden-x4 nano-x4 k8 k8-sse3 opteron opteron-sse3 athlon64 athlon64-sse3 athlon-fx amdfam10 barcelona bdver1 bdver2 bdver3 bdver4 znver1 znver2 znver3 btver1 btver2 native; did you mean ‘x86-64-v2’?


Which seems to me a reasonable error message.

Martin