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Diffstat (limited to 'gcc/doc/extend.texi')
| -rw-r--r-- | gcc/doc/extend.texi | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 4156291..0014490e 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -12041,6 +12041,7 @@ instructions, but allow the compiler to schedule those calls. * PowerPC Built-in Functions:: * PowerPC AltiVec/VSX Built-in Functions:: * PowerPC Hardware Transactional Memory Built-in Functions:: +* PowerPC Atomic Memory Operation Functions:: * RX Built-in Functions:: * S/390 System z Built-in Functions:: * SH Built-in Functions:: @@ -19126,6 +19127,67 @@ while (1) @} @end smallexample +@node PowerPC Atomic Memory Operation Functions +@subsection PowerPC Atomic Memory Operation Functions +ISA 3.0 of the PowerPC added new atomic memory operation (amo) +instructions. GCC provides support for these instructions in 64-bit +environments. All of the functions are declared in the include file +@code{amo.h}. + +The functions supported are: + +@smallexample +#include <amo.h> + +uint32_t amo_lwat_add (uint32_t *, uint32_t); +uint32_t amo_lwat_xor (uint32_t *, uint32_t); +uint32_t amo_lwat_ior (uint32_t *, uint32_t); +uint32_t amo_lwat_and (uint32_t *, uint32_t); +uint32_t amo_lwat_umax (uint32_t *, uint32_t); +uint32_t amo_lwat_umin (uint32_t *, uint32_t); +uint32_t amo_lwat_swap (uint32_t *, uint32_t); + +int32_t amo_lwat_sadd (int32_t *, int32_t); +int32_t amo_lwat_smax (int32_t *, int32_t); +int32_t amo_lwat_smin (int32_t *, int32_t); +int32_t amo_lwat_sswap (int32_t *, int32_t); + +uint64_t amo_ldat_add (uint64_t *, uint64_t); +uint64_t amo_ldat_xor (uint64_t *, uint64_t); +uint64_t amo_ldat_ior (uint64_t *, uint64_t); +uint64_t amo_ldat_and (uint64_t *, uint64_t); +uint64_t amo_ldat_umax (uint64_t *, uint64_t); +uint64_t amo_ldat_umin (uint64_t *, uint64_t); +uint64_t amo_ldat_swap (uint64_t *, uint64_t); + +int64_t amo_ldat_sadd (int64_t *, int64_t); +int64_t amo_ldat_smax (int64_t *, int64_t); +int64_t amo_ldat_smin (int64_t *, int64_t); +int64_t amo_ldat_sswap (int64_t *, int64_t); + +void amo_stwat_add (uint32_t *, uint32_t); +void amo_stwat_xor (uint32_t *, uint32_t); +void amo_stwat_ior (uint32_t *, uint32_t); +void amo_stwat_and (uint32_t *, uint32_t); +void amo_stwat_umax (uint32_t *, uint32_t); +void amo_stwat_umin (uint32_t *, uint32_t); + +void amo_stwat_sadd (int32_t *, int32_t); +void amo_stwat_smax (int32_t *, int32_t); +void amo_stwat_smin (int32_t *, int32_t); + +void amo_stdat_add (uint64_t *, uint64_t); +void amo_stdat_xor (uint64_t *, uint64_t); +void amo_stdat_ior (uint64_t *, uint64_t); +void amo_stdat_and (uint64_t *, uint64_t); +void amo_stdat_umax (uint64_t *, uint64_t); +void amo_stdat_umin (uint64_t *, uint64_t); + +void amo_stdat_sadd (int64_t *, int64_t); +void amo_stdat_smax (int64_t *, int64_t); +void amo_stdat_smin (int64_t *, int64_t); +@end smallexample + @node RX Built-in Functions @subsection RX Built-in Functions GCC supports some of the RX instructions which cannot be expressed in |