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gcc/
2010-10-27 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386-protos.h (init_cumulative_args): Add an int.
* config/i386/i386.c (block_info): New.
(BLOCK_INFO): Likewise.
(call_avx256_state): Likewise.
(check_avx256_stores): Likewise.
(move_or_delete_vzeroupper_2): Likewise.
(move_or_delete_vzeroupper_1): Likewise.
(move_or_delete_vzeroupper): Likewise.
(use_avx256_p): Likewise.
(function_pass_avx256_p): Likewise.
(flag_opts): Add -mvzeroupper.
(ix86_option_override_internal): Turn on MASK_VZEROUPPER by
default for TARGET_AVX. Turn off MASK_VZEROUPPER if TARGET_AVX
is disabled.
(ix86_function_ok_for_sibcall): Disable sibcall if we need to
generate vzeroupper.
(init_cumulative_args): Add an int to indicate caller. Set
use_avx256_p, callee_return_avx256_p and caller_use_avx256_p
based on return type.
(ix86_function_arg): Set use_avx256_p, callee_pass_avx256_p and
caller_pass_avx256_p based on argument type.
(ix86_expand_epilogue): Emit vzeroupper if 256bit AVX register
is used, but not returned by caller.
(ix86_expand_call): Emit vzeroupper if 256bit AVX register is
used.
(ix86_local_alignment): Set use_avx256_p if 256bit AVX register
is used.
(ix86_minimum_alignment): Likewise.
(ix86_expand_special_args_builtin): Set target to
GEN_INT (vzeroupper_intrinsic) for CODE_FOR_avx_vzeroupper.
(ix86_reorg): Run the vzeroupper optimization if needed.
* config/i386/i386.h (ix86_args): Add caller.
(INIT_CUMULATIVE_ARGS): Updated.
(machine_function): Add use_vzeroupper_p, use_avx256_p,
caller_pass_avx256_p, caller_return_avx256_p,
callee_pass_avx256_p and callee_return_avx256_p.
* config/i386/i386.opt (-mvzeroupper): New.
* config/i386/predicates.md (vzeroupper_operation): Removed.
* config/i386/sse.md (avx_vzeroupper): Removed.
(*avx_vzeroupper): Removed.
(avx_vzeroupper): New.
* doc/invoke.texi: Document -mvzeroupper.
gcc/testsuite/
2010-10-27 H.J. Lu <hongjiu.lu@intel.com>
* gcc.target/i386/avx-vzeroupper-1.c: Add -mtune=generic.
* gcc.target/i386/avx-vzeroupper-2.c: Likewise.
* gcc.target/i386/avx-vzeroupper-3.c: New.
* gcc.target/i386/avx-vzeroupper-4.c: Likewise.
* gcc.target/i386/avx-vzeroupper-5.c: Likewise.
* gcc.target/i386/avx-vzeroupper-6.c: Likewise.
* gcc.target/i386/avx-vzeroupper-7.c: Likewise.
* gcc.target/i386/avx-vzeroupper-8.c: Likewise.
* gcc.target/i386/avx-vzeroupper-9.c: Likewise.
* gcc.target/i386/avx-vzeroupper-10.c: Likewise.
* gcc.target/i386/avx-vzeroupper-11.c: Likewise.
* gcc.target/i386/avx-vzeroupper-12.c: Likewise.
* gcc.target/i386/avx-vzeroupper-13.c: Likewise.
* gcc.target/i386/avx-vzeroupper-14.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166000 138bc75d-0d04-0410-961f-82ee72b054a4
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