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From: "chrbr at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug treelang/41639] New: synchronisation primitives take unsigned as input and output values. Date: Fri, 09 Oct 2009 07:06:00 -0000 [thread overview] Message-ID: <bug-41639-14332@http.gcc.gnu.org/bugzilla/> (raw) Current implementation of the synchronization builtins in gcc (from http://software.intel.com/sites/products/documentation/hpc/compilerpro/en-us/cpp/lin/compiler_c/intref_cls/common/intref_itanium_synchro_prim.htm) describe <type> as unsigned. although it is stated as "<type> is either a 32-bit or 64-bit integer" consequently, testsuite tests such as sync-2.c: if (__sync_sub_and_fetch(AI+13, 12) != (char)-12) abort (); might fail. (unless the target/runtime dependant primitive implementation artificially change the return type). -- Summary: synchronisation primitives take unsigned as input and output values. Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: trivial Priority: P3 Component: treelang AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: chrbr at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41639
next reply other threads:[~2009-10-09 7:06 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-10-09 7:06 chrbr at gcc dot gnu dot org [this message] 2009-10-09 7:12 ` [Bug treelang/41639] " chrbr at gcc dot gnu dot org 2010-07-20 22:21 ` [Bug middle-end/41639] " steven at gcc dot gnu dot org
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