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| author | Zdenek Dvorak <dvorakz@suse.cz> | 2006-11-12 20:17:02 +0100 |
|---|---|---|
| committer | Zdenek Dvorak <rakdver@gcc.gnu.org> | 2006-11-12 19:17:02 +0000 |
| commit | 47eb5b329bf8e6ab2e939a4cedf5533d02a6c7f1 (patch) | |
| tree | 3dfa782960185e45d610e396ad0016d74f247a11 /gcc/params.def | |
| parent | 015e23f4005b00afaf87c90ef67db48b364fe70e (diff) | |
| download | gcc-47eb5b329bf8e6ab2e939a4cedf5533d02a6c7f1.zip gcc-47eb5b329bf8e6ab2e939a4cedf5533d02a6c7f1.tar.gz gcc-47eb5b329bf8e6ab2e939a4cedf5533d02a6c7f1.tar.bz2 | |
params.c (set_param_value): Initialize the "set" field.
* params.c (set_param_value): Initialize the "set" field.
* params.h (struct param_info): Add "set" field.
(PARAM_SET_P): New macro.
(PREFETCH_LATENCY, SIMULTANEOUS_PREFETCHES, L1_CACHE_SIZE,
L1_CACHE_LINE_SIZE): New macros.
* toplev.c (DEFPARAM): Initialize the "set" field.
* tree-ssa-loop-prefetch.c (PREFETCH_LATENCY,
SIMULTANEOUS_PREFETCHES): Removed.
(PREFETCH_BLOCK): Use L1_CACHE_LINE_SIZE.
(tree_ssa_prefetch_arrays): Dump the values of the parameters.
* config/sparc/sparc.c: Include params.h.
(sparc_override_options): Set SIMULTANEOUS_PREFETCHES and
L1_CACHE_LINE_SIZE parameters.
* config/sparc/sparc.h (PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES):
Removed.
* config/i386/i386.h (PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES):
Removed.
* config/i386/i386.c: Include params.h.
(k8_cost): Change default value for SIMULTANEOUS_PREFETCHES.
(override_options): Set SIMULTANEOUS_PREFETCHES and
L1_CACHE_LINE_SIZE parameters.
* config/sh/sh.h (SIMULTANEOUS_PREFETCHES): Removed.
(OPTIMIZATION_OPTIONS): Set SIMULTANEOUS_PREFETCHES and
L1_CACHE_LINE_SIZE parameters.
* config/ia64/ia64.c (ia64_optimization_options): Set
SIMULTANEOUS_PREFETCHES and L1_CACHE_LINE_SIZE parameters.
* config/ia64/ia64.h (SIMULTANEOUS_PREFETCHES, PREFETCH_BLOCK):
Removed.
* params.def (PARAM_PREFETCH_LATENCY, PARAM_SIMULTANEOUS_PREFETCHES,
PARAM_L1_CACHE_SIZE, PARAM_L1_CACHE_LINE_SIZE): New params.
* doc/invoke.texi: Document new params.
From-SVN: r118728
Diffstat (limited to 'gcc/params.def')
| -rw-r--r-- | gcc/params.def | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/params.def b/gcc/params.def index 488a4a9..764b3c4 100644 --- a/gcc/params.def +++ b/gcc/params.def @@ -594,6 +594,37 @@ DEFPARAM(PARAM_MAX_SCHED_READY_INSNS, "The maximum number of instructions ready to be issued to be considered by the scheduler during the first scheduling pass", 100, 0, 0) +/* Prefetching and cache-optimizations related parameters. Default values are + usually set by machine description. */ + +/* The number of insns executed before prefetch is completed. */ + +DEFPARAM (PARAM_PREFETCH_LATENCY, + "prefetch-latency", + "The number of insns executed before prefetch is completed", + 200, 0, 0) + +/* The number of prefetches that can run at the same time. */ + +DEFPARAM (PARAM_SIMULTANEOUS_PREFETCHES, + "simultaneous-prefetches", + "The number of prefetches that can run at the same time", + 3, 0, 0) + +/* The size of L1 cache in number of cache lines. */ + +DEFPARAM (PARAM_L1_CACHE_SIZE, + "l1-cache-size", + "The size of L1 cache", + 1024, 0, 0) + +/* The size of L1 cache line in bytes. */ + +DEFPARAM (PARAM_L1_CACHE_LINE_SIZE, + "l1-cache-line-size", + "The size of L1 cache line", + 32, 0, 0) + /* Local variables: mode:c |