NotificationsYou must be signed in to change notification settings
Fork6
Star31

Commitf5c1167

committed

For ppc gcc, implement 64-bit compare_exchange and fetch_add with asm.

While xlc defines __64BIT__, gcc does not. Due to this oversight incommit30ee5d1, gcc builds continuedimplementing 64-bit atomics by way of intrinsics. Back-patch to v13,where that commit first appeared.Reviewed by Tom Lane.Discussion:https://postgr.es/m/20201011051043.GA1724101@rfd.leadboat.com

1 parent80f8eb7 commitf5c1167Copy full SHA for f5c1167

File tree

1 file changed

-2

lines changed

src/include/port/atomics
- arch-ppc.h

1 file changed

-2

lines changed

`‎src/include/port/atomics/arch-ppc.h`

Lines changed: 2 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -32,14 +32,14 @@ typedef struct pg_atomic_uint32`
`32`	`32`	`}pg_atomic_uint32;`
`33`	`33`
`34`	`34`	`/* 64bit atomics are only supported in 64bit mode */`
`35`		`-#ifdef__64BIT__`
	`35`	`+#ifSIZEOF_VOID_P >=8`
`36`	`36`	`#definePG_HAVE_ATOMIC_U64_SUPPORT`
`37`	`37`	`typedefstructpg_atomic_uint64`
`38`	`38`	`{`
`39`	`39`	`volatileuint64valuepg_attribute_aligned(8);`
`40`	`40`	`}pg_atomic_uint64;`
`41`	`41`
`42`		`-#endif/* __64BIT__ */`
	`42`	`+#endif`
`43`	`43`
`44`	`44`	`/*`
`45`	`45`	`* This mimics gcc __atomic_compare_exchange_n(..., __ATOMIC_SEQ_CST), but`

0 commit comments

Comments

(0)

Movatterモバイル変換

Navigation Menu

Search code, repositories, users, issues, pull requests...

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

Commitf5c1167

File tree

1 file changed

1 file changed

`‎src/include/port/atomics/arch-ppc.h`

0 commit comments