http://llvm.org/bugs/show_bug.cgi?id=7254
Summary: unrecognized instruction lock
Product: new-bugs
Version: unspecified
Platform: Macintosh
OS/Version: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
When trying to compile:
static inline void inc(int64_t* atomic)
{
__asm__ __volatile__
(
"lock incq %0\n"
: "=m" (*atomic)
: "m" (*atomic)
);
}
I get:
<inline asm>:1:2: error: unrecognized instruction
lock incq (%rax)
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