https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80298
Bug ID: 80298 Summary: <x86intrin.h> incompatible with -mno-sse Product: gcc Version: 6.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: roland at gnu dot org Target Milestone: --- For any x86_64 target, try: gcc -mno-sse -S -o - -xc <(echo '#include <x86intrin.h>') It fails with various errors about SSE being disabled. Many of the components of x86intrin.h make special efforts to ensure that they can be compiled without the associated code-generation features being enabled on the command line, but some of them fail to do so.