https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65967
Bug ID: 65967 Summary: error: unable to emulate ‘XF’ Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: hjl.tools at gmail dot com CC: ubizjak at gmail dot com Target Milestone: --- Target: x86 [hjl@gnu-6 abi-1]$ cat x.i typedef float XFtype __attribute__ ((mode (XF))); XFtype bar2 (XFtype x) { return x; } [hjl@gnu-6 abi-1]$ gcc -m32 -mno-80387 -S x.i [hjl@gnu-6 abi-1]$ gcc -m32 -mno-80387 -S x.i -mlong-double-64 x.i:1:1: error: unable to emulate ‘XF’ typedef float XFtype __attribute__ ((mode (XF))); ^ [hjl@gnu-6 abi-1]$