diff options
Diffstat (limited to 'gcc/function-abi.h')
-rw-r--r-- | gcc/function-abi.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/function-abi.h b/gcc/function-abi.h index 8dd139e..9bb4d17 100644 --- a/gcc/function-abi.h +++ b/gcc/function-abi.h @@ -208,6 +208,27 @@ protected: HARD_REG_SET m_mask; }; +/* This class collects information about the ABIs of functions that are + called in a particular region of code. It is mostly intended to be + used as a local variable during an IR walk. */ +class function_abi_aggregator +{ +public: + function_abi_aggregator () : m_abi_clobbers () {} + + /* Record that the code region calls a function with the given ABI. */ + void + note_callee_abi (const function_abi &abi) + { + m_abi_clobbers[abi.id ()] |= abi.full_and_partial_reg_clobbers (); + } + + HARD_REG_SET caller_save_regs (const function_abi &) const; + +private: + HARD_REG_SET m_abi_clobbers[NUM_ABI_IDS]; +}; + struct target_function_abi_info { /* An array of all the target ABIs that are available in this |