http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55947
Bug #: 55947
Summary: non constant memory models lose HLE qualifiers
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: [email protected]
ReportedBy: [email protected]
get_memmodel does this
/* If the parameter is not a constant, it's a run time value so we'll just
convert it to MEMMODEL_SEQ_CST to avoid annoying runtime checking. */
if (TREE_CODE (exp) != INTEGER_CST)
return MEMMODEL_SEQ_CST;
This implies that if __ATOMIC_HLE_ACQUIRE, __ATOMIC_HLE_RELEASE are passed in
as non constant they will get lost.
