Hi! With the support for string literals, there is no need to obfuscate sse4.2 to sse4_2; not doing it makes it easier to describe, because the option is -msse4.2, not -msse4_2.
Bootstrapped/regtested on x86_64-linux and i686-linux, committed to trunk. 2019-11-14 Jakub Jelinek <ja...@redhat.com> * config/i386/i386-options.c (ix86_omp_device_kind_arch_isa): Don't change sse4.2 to sse4_2 and sse4.1 to sse4.1. * config/i386/t-omp-device (omp-device-properties-i386): Likewise. * c-c++-common/gomp/declare-variant-11.c: Add "sse4.2" and "sse4.1" test. --- gcc/config/i386/i386-options.c.jj 2019-11-13 10:54:56.641875411 +0100 +++ gcc/config/i386/i386-options.c 2019-11-13 15:24:19.266370999 +0100 @@ -316,19 +316,13 @@ ix86_omp_device_kind_arch_isa (enum omp_ HOST_WIDE_INT mask = i ? ix86_isa_flags2 : ix86_isa_flags; for (size_t n = 0; n < nopts; n++) { - const char *option = opts[n].option + 2; - /* -msse4.2 and -msse4.1 options contain dot, which is not valid - in identifiers. Use underscore instead, and handle sse4 - as an alias to sse4_2. */ + /* Handle sse4 as an alias to sse4.2. */ if (opts[n].mask == OPTION_MASK_ISA_SSE4_2) { - option = "sse4_2"; if (strcmp (name, "sse4") == 0) return (mask & opts[n].mask) != 0 ? 1 : -1; } - else if (opts[n].mask == OPTION_MASK_ISA_SSE4_1) - option = "sse4_1"; - if (strcmp (name, option) == 0) + if (strcmp (name, opts[n].option + 2) == 0) return (mask & opts[n].mask) != 0 ? 1 : -1; } } --- gcc/config/i386/t-omp-device.jj 2019-11-02 00:33:48.374547757 +0100 +++ gcc/config/i386/t-omp-device 2019-11-13 15:22:01.173467114 +0100 @@ -3,4 +3,4 @@ omp-device-properties-i386: $(srcdir)/co echo arch: x86 x86_64 i386 i486 i586 i686 ia32 >> $@ echo isa: sse4 `sed -n '/^static struct ix86_target_opts isa2\?_opts\[\] =/,/^};/p' \ $(srcdir)/config/i386/i386-options.c | \ - sed -n 's/",.*$$//;s/\./_/;s/^ { "-m//p'` >> $@ + sed -n 's/",.*$$//;s/^ { "-m//p'` >> $@ --- gcc/testsuite/c-c++-common/gomp/declare-variant-11.c.jj 2019-11-13 12:56:27.328081745 +0100 +++ gcc/testsuite/c-c++-common/gomp/declare-variant-11.c 2019-11-13 15:25:40.045144859 +0100 @@ -14,7 +14,7 @@ void f05 (void); void f06 (void); void f07 (void); void f08 (void); -#pragma omp declare variant (f07) match (device={isa(sse4,sse3,"avx")}) +#pragma omp declare variant (f07) match (device={isa(sse4,"sse4.1","sse4.2",sse3,"avx")}) #pragma omp declare variant (f08) match (device={isa("avx",sse3)}) void f09 (void); void f10 (void); Jakub