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riscv-gcc-1
Commit ed56b7f9 by Uros Bizjak
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i386.md: Comments on fma4 instruction selection reflect requirement on register pressure... 

2012-09-12  Ganesh Gopalasubramanian  <Ganesh.Gopalasubramanian@amd.com>

	* config/i386/i386.md : Comments on fma4 instruction
	selection reflect requirement on register pressure based
	cost model.

	* config/i386/driver-i386.c (host_detect_local_cpu): fma4
	flag is set-reset as informed by the cpuid flag.

	* config/i386/i386.c (processor_alias_table): fma4
	flag is enabled for bdver2.

From-SVN: r191226
parent 40b178f4
Showing with 34 additions and 24 deletions
gcc/ChangeLog
2012-09-12 Ganesh Gopalasubramanian <Ganesh.Gopalasubramanian@amd.com>
* config/i386/i386.md : Comments on fma4 instruction
selection reflect requirement on register pressure based
cost model.
* config/i386/driver-i386.c (host_detect_local_cpu): fma4
flag is set-reset as informed by the cpuid flag.
* config/i386/i386.c (processor_alias_table): fma4
flag is enabled for bdver2.
2012-09-12 Richard Guenther <rguenther@suse.de>
PR tree-optimization/54489
......@@ -93,13 +105,11 @@
2012-09-11 Diego Novillo <dnovillo@google.com>
* var-tracking.c (vt_add_function_parameter): Adjust for VEC
changes.
* var-tracking.c (vt_add_function_parameter): Adjust for VEC changes.
2012-09-11 Dominique Dhumieres <dominiq@lps.ens.fr>
* config/darwin.c (darwin_asm_named_section): Adjust for
VEC changes.
* config/darwin.c (darwin_asm_named_section): Adjust for VEC changes.
(darwin_asm_dwarf_section): Likewise.
2012-09-11 Martin Jambor <mjambor@suse.cz>
......@@ -158,12 +168,11 @@
2012-09-11 Richard Guenther <rguenther@suse.de>
* graphite-scop-detection.c (move_sd_regions): Adjust for VEC
changes.
* graphite-scop-detection.c (move_sd_regions): Adjust for VEC changes.
(scopdet_basic_block_info): Likewise.
(build_scops_1): Likewise.
(limit_scops): Likewise.
2012-09-11 Richard Guenther <rguenther@suse.de>
PR middle-end/54515
......@@ -266,7 +275,7 @@
2012-09-09 Mark Kettenis <kettenis@gnu.org>
* config/openbsd-stdint.h (INTMAX_TYPE, UINTMAX_TYPE): Define.
2012-09-09 Jan Hubicka <jh@suse.cz>
* passes.c (ipa_write_summaries_1): Set state;
......@@ -302,7 +311,8 @@
(lto_symtab_encoder_delete_node): New function.
(lto_symtab_encoder_encode_body_p, lto_set_symtab_encoder_encode_body,
lto_symtab_encoder_encode_initializer_p,
lto_set_symtab_encoder_encode_initializer, lto_symtab_encoder_in_partition_p,
lto_set_symtab_encoder_encode_initializer,
lto_symtab_encoder_in_partition_p,
lto_symtab_encoder_in_partition_p): Update.
(compute_ltrans_boundary): Take encoder as an input.
* passes.c (ipa_write_summaries_1): Update.
......@@ -323,12 +333,12 @@
2012-09-08 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
* config/pa/pa.c (hppa_rtx_costs): Update costs for large integer modes.
* config/pa/pa.c (hppa_rtx_costs): Update costs for large
integer modes.
2012-09-08 Andi Kleen <ak@linux.intel.com>
* gcc/lto/lto.c (do_whole_program_analysis):
Fix last broken patch
* gcc/lto/lto.c (do_whole_program_analysis): Fix last broken patch.
2012-09-08 Andi Kleen <ak@linux.intel.com>
......@@ -392,8 +402,8 @@
PR tree-optimization/53986
* tree-vrp.c (extract_range_from_multiplicative_op_1): Allow
LSHIFT_EXPR.
(extract_range_from_binary_expr_1): Handle LSHIFT with constant range as
shift amount.
(extract_range_from_binary_expr_1): Handle LSHIFT with constant
range as shift amount.
2012-09-07 Segher Boessenkool <segher@kernel.crashing.org>
......@@ -416,7 +426,7 @@
(call_value_nonlocal_aix32): Ditto.
(call_value_nonlocal_aix64): Ditto.
2012-09-06 Andi Kleen <ak@linux.intel.com>
2012-09-06 Andi Kleen <ak@linux.intel.com>
* doc/invoke.texi (-ffat-lto-objects): Clarify that gcc-ar
et.al. should be used.
......@@ -498,7 +508,7 @@
2012-09-06 Uros Bizjak <ubizjak@gmail.com>
* configure.ac (hle prefixes): Remove .code64.
* configure.ac (hle prefixes): Remove .code64 directive.
* configure: Regenerated.
2012-09-06 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
......@@ -922,7 +932,7 @@
* config/sh/sh.md (cbranchsi4): Remove TARGET_CBRANCHDI4 check and
always invoke expand_cbranchsi4.
2012-09-03 Andi Kleen <ak@linux.intel.com>
2012-09-03 Andi Kleen <ak@linux.intel.com>
* tree-ssa-sccvn.c (vn_reference_fold_indirect): Initialize
addr_offset always.
......@@ -15115,7 +15125,7 @@
* cgraphunit.c (cgraph_analyze_function): Use gimple_has_body_p.
2012-05-02 Kirill Yukhin <kirill.yukhin@intel.com>
Andi Kleen <ak@linux.intel.com>
Andi Kleen <ak@linux.intel.com>
* coretypes.h (MEMMODEL_MASK): New.
* builtins.c (get_memmodel): Add val. Call target.memmodel_check
......
gcc/config/i386/driver-i386.c
......@@ -472,8 +472,6 @@ const char *host_detect_local_cpu (int argc, const char **argv)
has_abm = ecx & bit_ABM;
has_lwp = ecx & bit_LWP;
has_fma4 = ecx & bit_FMA4;
if (vendor == signature_AMD_ebx && has_fma4 && has_fma)
has_fma4 = 0;
has_xop = ecx & bit_XOP;
has_tbm = ecx & bit_TBM;
has_lzcnt = ecx & bit_LZCNT;
......
gcc/config/i386/i386.c
......@@ -3164,7 +3164,7 @@ ix86_option_override_internal (bool main_args_p)
{"bdver2", PROCESSOR_BDVER2, CPU_BDVER2,
PTA_64BIT | PTA_MMX | PTA_SSE | PTA_SSE2 | PTA_SSE3
| PTA_SSE4A | PTA_CX16 | PTA_ABM | PTA_SSSE3 | PTA_SSE4_1
| PTA_SSE4_2 | PTA_AES | PTA_PCLMUL | PTA_AVX
| PTA_SSE4_2 | PTA_AES | PTA_PCLMUL | PTA_AVX | PTA_FMA4
| PTA_XOP | PTA_LWP | PTA_BMI | PTA_TBM | PTA_F16C
| PTA_FMA},
{"btver1", PROCESSOR_BTVER1, CPU_GENERIC64,
gcc/config/i386/i386.md
......@@ -659,9 +659,11 @@
(eq_attr "isa" "noavx2") (symbol_ref "!TARGET_AVX2")
(eq_attr "isa" "bmi2") (symbol_ref "TARGET_BMI2")
(eq_attr "isa" "fma") (symbol_ref "TARGET_FMA")
;; Disable generation of FMA4 instructions for generic code
;; since FMA3 is preferred for targets that implement both
;; instruction sets.
;; Fma instruction selection has to be done based on
;; register pressure. For generating fma4, a cost model
;; based on register pressure is required. Till then,
;; fma4 instruction is disabled for targets that implement
;; both fma and fma4 instruction sets.
(eq_attr "isa" "fma4")
(symbol_ref "TARGET_FMA4 && !TARGET_FMA")
]
......
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