http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52813
Bug #: 52813
Summary: %rsp in clobber list is silently ignored
Classification: Unclassified
Product: gcc
Version: 4.6.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: inline-asm
AssignedTo: [email protected]
ReportedBy: [email protected]
The following test program crashes even though I correctly listed %rsp as
clobbered:
--
int main() {
asm volatile ("movq $0, %%rsp" : : : "%rsp");
return 0;
}
--
I would prefer gcc to error out in this case instead of silently ignoring my
instruction.
