Hello! Correct name of atomic "or" named pattern is "atomic_orM", not "atomic_iorM".
Attached patch fixes this oversight. 2012-04-17 Uros Bizjak <ubiz...@gmail.com> PR target/53020 * config/i386/sync.md (atomic_<code><mode>): Rename to atomic_<logic><mode>. Patch was bootstrapped and tested on x86_64-pc-linux-gnu, will be committed to all release branches. Uros.
Index: config/i386/sync.md =================================================================== --- config/i386/sync.md (revision 186539) +++ config/i386/sync.md (working copy) @@ -576,7 +576,7 @@ return "lock{%;} sub{<imodesuffix>}\t{%1, %0|%0, %1}"; }) -(define_insn "atomic_<code><mode>" +(define_insn "atomic_<logic><mode>" [(set (match_operand:SWI 0 "memory_operand" "+m") (unspec_volatile:SWI [(any_logic:SWI (match_dup 0)