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Just noticed that use of 'volatile' in HPPA S_UNLOCK() was causing gcc

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to generate unnecessarily stupid code.  Tweak macro to describe a series
of store-constant ops, not store/load/store/load/store/load/store.
This commit is contained in:
Tom Lane 2001-02-16 23:50:40 +00:00
parent 810c0b85d2
commit 6249971b41
1 changed files with 5 additions and 3 deletions
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8
src/include/storage/s_lock.h
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.88 2001/02/10 04:07:25 tgl Exp $
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.89 2001/02/16 23:50:40 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -392,8 +392,10 @@ tas(volatile slock_t *lock)
#define S_UNLOCK(lock) \
do { \
volatile slock_t *lock_ = (volatile slock_t *) (lock); \
lock_->sema[0] = lock_->sema[1] = \
lock_->sema[2] = lock_->sema[3] = -1; \
lock_->sema[0] = -1; \
lock_->sema[1] = -1; \
lock_->sema[2] = -1; \
lock_->sema[3] = -1; \
} while (0)
#define S_LOCK_FREE(lock) ( *(int *) (((long) (lock) + 15) & ~15) != 0)