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| author | Uros Bizjak <uros@gcc.gnu.org> | 2013-01-14 17:44:55 +0100 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2013-01-14 17:44:55 +0100 |
| commit | e6f0e05240317c022d19de26508730b9b7d81299 (patch) | |
| tree | 8dabc46decc226ac7e33e4c8b887522986bde774 /gcc/config | |
| parent | 197fa28c0eb545670416129d3bb545dd13ddfa1a (diff) | |
| download | gcc-e6f0e05240317c022d19de26508730b9b7d81299.zip gcc-e6f0e05240317c022d19de26508730b9b7d81299.tar.gz gcc-e6f0e05240317c022d19de26508730b9b7d81299.tar.bz2 | |
re PR target/55948 (__atomic_clear / __atomic_store_n ignore HLE_RELEASE flags)
PR target/55948
* config/i386/sync.md (atomic_store<mode>_1): New pattern.
(atomic_store<mode>): Call atomic_store<mode>_1 for IX86_HLE_RELEASE
memmodel flag.
testsuite/ChangeLog
PR target/55948
* gcc.target/i386/hle-clear-rel.c: New file
* gcc.target/i386/hle-store-rel.c: New file.
From-SVN: r195155
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/i386/sync.md | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/gcc/config/i386/sync.md b/gcc/config/i386/sync.md index 83198b9..2309c83 100644 --- a/gcc/config/i386/sync.md +++ b/gcc/config/i386/sync.md @@ -224,8 +224,12 @@ DONE; } - /* Otherwise use a normal store. */ - emit_move_insn (operands[0], operands[1]); + /* Otherwise use a store. */ + if (INTVAL (operands[2]) & IX86_HLE_RELEASE) + emit_insn (gen_atomic_store<mode>_1 (operands[0], operands[1], + operands[2])); + else + emit_move_insn (operands[0], operands[1]); } /* ... followed by an MFENCE, if required. */ if (model == MEMMODEL_SEQ_CST) @@ -233,6 +237,14 @@ DONE; }) +(define_insn "atomic_store<mode>_1" + [(set (match_operand:ATOMIC 0 "memory_operand" "=m") + (unspec:ATOMIC [(match_operand:ATOMIC 1 "<nonmemory_operand>" "<r><i>") + (match_operand:SI 2 "const_int_operand")] + UNSPEC_MOVA))] + "" + "%K2mov{<imodesuffix>}\t{%1, %0|%0, %1}") + (define_insn_and_split "atomic_storedi_fpu" [(set (match_operand:DI 0 "memory_operand" "=m,m,m") (unspec:DI [(match_operand:DI 1 "register_operand" "x,m,?r")] |