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Diffstat (limited to 'gcc/ChangeLog')
| -rw-r--r-- | gcc/ChangeLog | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4bdf5c172c0..1e7dc32427e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,54 @@ +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. + 2010-10-27 Eric Botcazou <ebotcazou@adacore.com> * config/i386/t-mingw32 (SHLIB_LC): Add -lmingwthrd. |