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| author | Sudakshina Das <sudi.das@arm.com> | 2019-07-31 09:19:53 +0000 |
|---|---|---|
| committer | Sudakshina Das <sudi@gcc.gnu.org> | 2019-07-31 09:19:53 +0000 |
| commit | 89626179b6fe42cbd58c715808f7c6401879757f (patch) | |
| tree | 134de5d3150b985d590bffa2ad2879734c18f5e4 /gcc/config.gcc | |
| parent | f0efd92502a0eb33c8f8f9e1ea03b25a714b2d72 (diff) | |
| download | gcc-89626179b6fe42cbd58c715808f7c6401879757f.zip gcc-89626179b6fe42cbd58c715808f7c6401879757f.tar.gz gcc-89626179b6fe42cbd58c715808f7c6401879757f.tar.bz2 | |
[GCC, AArch64] Enable Transactional Memory Extension
This patch enables the new Transactional Memory Extension announced recently
as part of Arm's new architecture technologies.
We introduce a new optional extension "tme" to enable this. The following
instructions are part of the extension:
* tstart <Xt>
* ttest <Xt>
* tcommit
* tcancel #<imm>
We have also added ACLE intrinsics for the instructions.
*** gcc/ChangeLog ***
2019-07-31 Sudakshina Das <sudi.das@arm.com>
* config/aarch64/aarch64-builtins.c (enum aarch64_builtins): Add
AARCH64_TME_BUILTIN_TSTART, AARCH64_TME_BUILTIN_TCOMMIT,
AARCH64_TME_BUILTIN_TTEST and AARCH64_TME_BUILTIN_TCANCEL.
(aarch64_init_tme_builtins): New.
(aarch64_init_builtins): Call aarch64_init_tme_builtins.
(aarch64_expand_builtin_tme): New.
(aarch64_expand_builtin): Handle TME builtins.
* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Define
__ARM_FEATURE_TME when enabled.
* config/aarch64/aarch64-option-extensions.def: Add "tme".
* config/aarch64/aarch64.h (AARCH64_FL_TME, AARCH64_ISA_TME): New.
(TARGET_TME): New.
* config/aarch64/aarch64.md (define_c_enum "unspec"): Add UNSPEC_TTEST.
(define_c_enum "unspecv"): Add UNSPECV_TSTART, UNSPECV_TCOMMIT and
UNSPECV_TCANCEL.
(tstart, ttest, tcommit, tcancel): New instructions.
* config/aarch64/arm_acle.h (__tstart, __tcommit): New.
(__tcancel, __ttest): New.
(_TMFAILURE_REASON, _TMFAILURE_RTRY, _TMFAILURE_CNCL): New macro.
(_TMFAILURE_MEM, _TMFAILURE_IMP, _TMFAILURE_ERR): Likewise.
(_TMFAILURE_SIZE, _TMFAILURE_NEST, _TMFAILURE_DBG): Likewise.
(_TMFAILURE_INT, _TMFAILURE_TRIVIAL): Likewise.
* config/arm/types.md: Add new tme type attr.
* doc/invoke.texi: Document "tme".
*** gcc/testsuite/ChangeLog ***
2019-07-31 Sudakshina Das <sudi.das@arm.com>
* gcc.target/aarch64/acle/tme.c: New test.
* gcc.target/aarch64/pragma_cpp_predefs_2.c: New test.
From-SVN: r273926
Diffstat (limited to 'gcc/config.gcc')
0 files changed, 0 insertions, 0 deletions