From 1ea8de4c8c23791c2c1ca231cc3461a4a9fc1efb Mon Sep 17 00:00:00 2001 From: Dimitar Dimitrov Date: Sun, 15 Sep 2019 18:01:22 +0300 Subject: [PATCH] PRU: Remove TARGET_HARD_REGNO_CALL_PART_CLOBBERED Per clarification in [1], macro is supposed to check for partial clobbering of single HW registers. Since PRU declares only 8-bit HW registers, and ABI does not define individual bit clobbering, it is safe to remove the implementation. [1] https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00778.html gcc/ChangeLog: 2020-05-05 Dimitar Dimitrov * config/pru/pru.c (pru_hard_regno_call_part_clobbered): Remove. (TARGET_HARD_REGNO_CALL_PART_CLOBBERED): Remove. Signed-off-by: Dimitar Dimitrov --- gcc/ChangeLog | 5 +++++ gcc/config/pru/pru.c | 34 ---------------------------------- 2 files changed, 5 insertions(+), 34 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b3c8b731570..6b4d53da318 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2020-05-05 Dimitar Dimitrov + + * config/pru/pru.c (pru_hard_regno_call_part_clobbered): Remove. + (TARGET_HARD_REGNO_CALL_PART_CLOBBERED): Remove. + 2020-05-05 Dimitar Dimitrov * config/pru/pru.h: Mark R3.w0 as caller saved. diff --git a/gcc/config/pru/pru.c b/gcc/config/pru/pru.c index 45b18ed6fe4..a715f6b07ce 100644 --- a/gcc/config/pru/pru.c +++ b/gcc/config/pru/pru.c @@ -556,37 +556,6 @@ pru_hard_regno_scratch_ok (unsigned int regno) } -/* Implement TARGET_HARD_REGNO_CALL_PART_CLOBBERED. */ - -static bool -pru_hard_regno_call_part_clobbered (unsigned, unsigned regno, - machine_mode mode) -{ - HARD_REG_SET caller_saved_set; - HARD_REG_SET callee_saved_set; - - CLEAR_HARD_REG_SET (caller_saved_set); - CLEAR_HARD_REG_SET (callee_saved_set); - - /* r0 and r1 are caller saved. */ - add_range_to_hard_reg_set (&caller_saved_set, 0, 2 * 4); - - add_range_to_hard_reg_set (&caller_saved_set, FIRST_ARG_REGNUM, - LAST_ARG_REGNUM + 1 - FIRST_ARG_REGNUM); - - /* Treat SP as callee saved. */ - add_range_to_hard_reg_set (&callee_saved_set, STACK_POINTER_REGNUM, 4); - - /* r3 to r13 are callee saved. */ - add_range_to_hard_reg_set (&callee_saved_set, FIRST_CALLEE_SAVED_REGNUM, - LAST_CALEE_SAVED_REGNUM + 1 - - FIRST_CALLEE_SAVED_REGNUM); - - return overlaps_hard_reg_set_p (caller_saved_set, mode, regno) - && overlaps_hard_reg_set_p (callee_saved_set, mode, regno); -} - - /* Worker function for `HARD_REGNO_RENAME_OK'. Return nonzero if register OLD_REG can be renamed to register NEW_REG. */ @@ -2935,9 +2904,6 @@ pru_unwind_word_mode (void) #undef TARGET_HARD_REGNO_SCRATCH_OK #define TARGET_HARD_REGNO_SCRATCH_OK pru_hard_regno_scratch_ok -#undef TARGET_HARD_REGNO_CALL_PART_CLOBBERED -#define TARGET_HARD_REGNO_CALL_PART_CLOBBERED \ - pru_hard_regno_call_part_clobbered #undef TARGET_FUNCTION_ARG #define TARGET_FUNCTION_ARG pru_function_arg -- 2.30.2