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driver-i386.c (detect_caches_cpuid2): Use array of registers instead of eax, ebx, ecx and edx.

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* config/i386/driver-i386.c (detect_caches_cpuid2): Use array
	of registers instead of eax, ebx, ecx and edx.  Use for loop
	and check register for non-zero value before the call
	to decode_caches_intel.

From-SVN: r141075
This commit is contained in:
Uros Bizjak 2008-10-12 20:43:50 +02:00
parent ed42adef44
commit dc8bd8d973
2 changed files with 28 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2008-10-12 Uros Bizjak <ubizjak@gmail.com>
* config/i386/driver-i386.c (detect_caches_cpuid2): Use array
of registers instead of eax, ebx, ecx and edx. Use for loop
and check register for non-zero value before the call
to decode_caches_intel.
2008-10-11 Kenneth Zadeck <zadeck@naturalbridge.com> 2008-10-11 Kenneth Zadeck <zadeck@naturalbridge.com>
PR rtl-optimization/37448 PR rtl-optimization/37448
@ -80,31 +87,26 @@
df_bb_regno_last_def_find, df_find_def, df_find_use, df_bb_regno_last_def_find, df_find_def, df_find_use,
df_refs_chain_dump, df_regs_chain_dump, df_ref_debug, df_refs_chain_dump, df_regs_chain_dump, df_ref_debug,
debug_df_ref): Replaced struct df_ref * with df_ref. debug_df_ref): Replaced struct df_ref * with df_ref.
(df_mws_dump, df_ref_debug): Use macros to hide references to (df_mws_dump, df_ref_debug): Use macros to hide references to df_refs.
df_refs.
* cse.c (cse_extended_basic_block): Replaced struct df_ref * with * cse.c (cse_extended_basic_block): Replaced struct df_ref * with
df_ref. df_ref.
* web.c (union_defs, entry_register, replace_ref, web_main): * web.c (union_defs, entry_register, replace_ref, web_main):
Replaced struct df_ref * with df_ref. Replaced struct df_ref * with df_ref.
(union_defs, replace_ref): Use macros to hide references to (union_defs, replace_ref): Use macros to hide references to df_refs.
df_refs.
* global.c (compute_regs_asm_clobbered, build_insn_chain): * global.c (compute_regs_asm_clobbered, build_insn_chain):
Replaced struct df_ref * with df_ref. Replaced struct df_ref * with df_ref.
* ifcvt.c (dead_or_predicable): Replaced struct df_ref * with * ifcvt.c (dead_or_predicable): Replaced struct df_ref * with df_ref.
df_ref.
* sel-sched-ir.c (maybe_downgrade_id_to_use, setup_id_reg_sets, ): * sel-sched-ir.c (maybe_downgrade_id_to_use, setup_id_reg_sets, ):
Replaced struct df_ref * with df_ref. Replaced struct df_ref * with df_ref.
* ira-lives.c (mark_ref_live, def_conflicts_with_inputs_p, * ira-lives.c (mark_ref_live, def_conflicts_with_inputs_p,
mark_ref_dead, process_bb_node_lives): Replaced struct df_ref * mark_ref_dead, process_bb_node_lives): Replaced struct df_ref *
with df_ref. with df_ref.
* local-alloc.c (block_alloc): Replaced struct df_ref * with * local-alloc.c (block_alloc): Replaced struct df_ref * with df_ref.
df_ref.
* df-byte-scan.c (df_compute_accessed_bytes_extract, * df-byte-scan.c (df_compute_accessed_bytes_extract,
df_compute_accessed_bytes_strict_low_part, df_compute_accessed_bytes_strict_low_part,
df_compute_accessed_bytes_subreg, df_compute_accessed_bytes): df_compute_accessed_bytes_subreg, df_compute_accessed_bytes):
Replaced struct df_ref * with df_ref. Replaced struct df_ref * with df_ref.
(df_compute_accessed_bytes): Use macros to hide references to (df_compute_accessed_bytes): Use macros to hide references to df_refs.
df_refs.
* init-regs.c (initialize_uninitialized_regs): Replaced struct * init-regs.c (initialize_uninitialized_regs): Replaced struct
df_ref * with df_ref. df_ref * with df_ref.
* loop-invariant.c (invariant_for_use, hash_invariant_expr_1, * loop-invariant.c (invariant_for_use, hash_invariant_expr_1,
@ -117,7 +119,8 @@
iv_analyze, biv_p): Replaced struct df_ref * with df_ref. iv_analyze, biv_p): Replaced struct df_ref * with df_ref.
(iv_analysis_loop_init, iv_get_reaching_def): Use macros to hide (iv_analysis_loop_init, iv_get_reaching_def): Use macros to hide
references to df_refs. references to df_refs.
* ira.c (compute_regs_asm_clobbered): Replaced struct df_ref * with df_ref. * ira.c (compute_regs_asm_clobbered): Replaced struct df_ref *
with df_ref.
* combine.c (create_log_links): Replaced struct df_ref * with df_ref. * combine.c (create_log_links): Replaced struct df_ref * with df_ref.
* df-problems.c (df_rd_bb_local_compute_process_def, * df-problems.c (df_rd_bb_local_compute_process_def,
df_lr_bb_local_compute, df_live_bb_local_compute, df_chain_create, df_lr_bb_local_compute, df_live_bb_local_compute, df_chain_create,
@ -130,9 +133,9 @@
df_byte_lr_simulate_artificial_refs_at_end, df_create_unused_note, df_byte_lr_simulate_artificial_refs_at_end, df_create_unused_note,
df_note_bb_compute, df_note_add_problem, df_simulate_defs, df_note_bb_compute, df_note_add_problem, df_simulate_defs,
df_simulate_uses, df_simulate_artificial_refs_at_end, df_simulate_uses, df_simulate_artificial_refs_at_end,
df_simulate_artificial_refs_at_top): Replaced struct df_ref * with df_ref. df_simulate_artificial_refs_at_top): Replaced struct df_ref * with
(df_chain_dump): Use macros to hide df_ref.
references to df_refs. (df_chain_dump): Use macros to hide references to df_refs.
* config/mips/mips.c (r10k_simplify_address): Replaced struct * config/mips/mips.c (r10k_simplify_address): Replaced struct
df_ref * with df_ref. df_ref * with df_ref.
* dce.c (mark_nonreg_stores, delete_corresponding_reg_eq_notes, * dce.c (mark_nonreg_stores, delete_corresponding_reg_eq_notes,

32
gcc/config/i386/driver-i386.c
View File

@ -230,27 +230,22 @@ static void
detect_caches_cpuid2 (bool xeon_mp, detect_caches_cpuid2 (bool xeon_mp,
struct cache_desc *level1, struct cache_desc *level2) struct cache_desc *level1, struct cache_desc *level2)
{ {
unsigned eax, ebx, ecx, edx; unsigned regs[4];
int nreps; int nreps, i;
__cpuid (2, eax, ebx, ecx, edx); __cpuid (2, regs[0], regs[1], regs[2], regs[3]);
nreps = eax & 0x0f; nreps = regs[0] & 0x0f;
eax &= ~0x0f; regs[0] &= ~0x0f;
while (--nreps >= 0) while (--nreps >= 0)
{ {
if (!((eax >> 31) & 1)) for (i = 0; i < 4; i++)
decode_caches_intel (eax, xeon_mp, level1, level2); if (regs[i] && !((regs[i] >> 31) & 1))
if (!((ebx >> 31) & 1)) decode_caches_intel (regs[i], xeon_mp, level1, level2);
decode_caches_intel (ebx, xeon_mp, level1, level2);
if (!((ecx >> 31) & 1))
decode_caches_intel (ecx, xeon_mp, level1, level2);
if (!((edx >> 31) & 1))
decode_caches_intel (edx, xeon_mp, level1, level2);
if (nreps) if (nreps)
__cpuid (2, eax, ebx, ecx, edx); __cpuid (2, regs[0], regs[1], regs[2], regs[3]);
} }
} }
@ -298,15 +293,10 @@ detect_caches_cpuid4 (struct cache_desc *level1, struct cache_desc *level2)
if (cache) if (cache)
{ {
unsigned sets = ecx + 1; unsigned sets = ecx + 1;
unsigned part; unsigned part = ((ebx >> 12) & 0x03ff) + 1;
cache->assoc = ((ebx >> 22) & 0x03ff) + 1;
cache->line = (ebx & 0x0fff) + 1; cache->line = (ebx & 0x0fff) + 1;
ebx >>= 12;
part = (ebx & 0x03ff) + 1;
ebx >>= 10;
cache->assoc = (ebx & 0x03ff) + 1;
cache->sizekb = (cache->assoc * part cache->sizekb = (cache->assoc * part
* cache->line * sets) / 1024; * cache->line * sets) / 1024;