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author | Richard Sandiford <richard.sandiford@arm.com> | 2019-09-10 18:57:09 +0000 |
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committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2019-09-10 18:57:09 +0000 |
commit | d7fb4c3162307590c0babddcea4fb60c07a7c033 (patch) | |
tree | b7a8cc40362f33043a160a1591ff79c0941f447a /gcc/config/m32r | |
parent | 53bee79caba4fb88acbcd9bad7891ea45b5511e3 (diff) | |
download | gcc-d7fb4c3162307590c0babddcea4fb60c07a7c033.zip gcc-d7fb4c3162307590c0babddcea4fb60c07a7c033.tar.gz gcc-d7fb4c3162307590c0babddcea4fb60c07a7c033.tar.bz2 |
Remove call_really_used_regs
After previous patches, it's now possible for call_used_regs to be
the "real" set of call-clobbered registers, without any special
handling for fixed registers. This patch therefore removes the
separate call_really_used_regs and updates the targets that define
CALL_REALLY_USED_REGISTERS so that they handle call_used_regs in
the same way that they used to handle call_really_used_regs.
With this change, it's no longer necessary for targets that define
CALL_REALLY_USED_REGISTERS to define CALL_USED_REGISTER as well.
2019-09-10 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* doc/tm.texi.in: Document that exactly one of CALL_USED_REGISTERS
and CALL_REALLY_USED_REGISTERS must be defined, and that
CALL_REALLY_USED_REGISTERS is preferred.
* doc/tm.texi: Regenerate.
* hard-reg-set.h (target_hard_regs::x_call_really_used_regs): Delete.
(call_really_used_regs): Likewise.
* reginfo.c: Raise an #error if both CALL_USED_REGISTERS and
CALL_REALLY_USED_REGISTERS are defined.
(initial_call_used_regs): Use CALL_REALLY_USED_REGISTERS as the
initial value if defined.
(initial_call_really_used_regs): Delete.
(saved_call_really_used_regs): Likewise.
(CALL_REALLY_USED_REGNO_P): Likewise.
(init_reg_sets): Remove handling of call_really_used_regs.
(save_register_info, restore_register_info, globalize_reg): Likewise.
(init_reg_sets_1): Likewise. Use call_used_regs instead of
CALL_REALLY_USED_REGNO_P. Don't set call_used_regs for registers
outside operand_reg_set.
(fix_register): Don't change call_used_regs if
CALL_REALLY_USED_REGISTERS is defined.
* config/csky/csky.h (CALL_USED_REGISTERS): Delete.
* config/csky/csky.c (get_csky_live_regs): Use call_used_regs
instead of call_really_used_regs.
(csky_conditional_register_usage): Remove the old handling of
call_used_regs and change the handling of call_really_used_regs
to use call_used_regs instead.
* config/ia64/ia64.h (CALL_USED_REGISTERS): Delete.
* config/ia64/ia64.c (fix_range): Don't set call_used_regs when
making a register fixed.
* config/m32r/m32r.h (CALL_USED_REGISTERS): Delete.
* config/m32r/m32r.c (MUST_SAVE_REGISTER): Use call_used_regs
instead of call_really_used_regs.
(m32r_conditional_register_usage): Don't set call_used_regs when
making a register fixed.
* config/mips/mips.h (CALL_USED_REGISTERS): Delete.
* config/mips/mips.c (mips_global_pointer): Use call_used_regs
instead of call_really_used_regs.
(mips_interrupt_extra_call_saved_reg_p): Likewise.
(mips_cfun_call_saved_reg_p): Likewise.
(mips_swap_registers): Remove the old handling of call_used_regs
and change the handling of call_really_used_regs to use call_used_regs
instead.
(mips_conditional_register_usage): Likewise.
* config/mn10300/mn10300.h (CALL_USED_REGISTERS): Delete.
* config/mn10300/mn10300.c (fp_regs_to_save): Use call_used_regs
instead of call_really_used_regs.
(mn10300_get_live_callee_saved_regs): Likewise.
(mn10300_expand_prologue, mn10300_expand_epilogue): Likewise.
(mn10300_conditional_register_usage): Don't set call_used_regs when
making a register fixed.
* config/rs6000/rs6000.h (CALL_USED_REGISTERS): Delete.
* config/rs6000/rs6000.c (rs6000_conditional_register_usage):
Remove the old handling of call_used_regs and change the handling
of call_really_used_regs to use call_used_regs instead.
* config/s390/s390.h (CALL_USED_REGISTERS): Delete.
* config/s390/s390.c (s390_regs_ever_clobbered): Use call_used_regs
instead of call_really_used_regs.
(s390_register_info_gprtofpr, s390_register_info): Likewise.
(s390_hard_regno_rename_ok, s390_hard_regno_scratch_ok): Likewise.
(s390_emit_prologue, s300_set_up_by_prologue): Likewise.
(s390_can_use_return_insn, s390_optimize_prologue): Likewise.
(s390_conditional_register_usage): Remove the old handling of
call_used_regs and change the handling of call_really_used_regs
to use call_used_regs instead.
* config/sh/sh.h (CALL_USED_REGISTERS): Delete.
* config/sh/sh.c (output_stack_adjust, calc_live_regs): Likewise.
(sh_fix_range, reg_unused_after): Likewise.
(sh_conditional_register_usage): Remove the old handling of
call_used_regs and change the handling of call_really_used_regs
to use call_used_regs instead.
* config/sparc/sparc.h (CALL_USED_REGISTERS): Delete.
* config/sparc/sparc.c (sparc_conditional_register_usage): Don't set
call_used_regs when making a register fixed.
* config/tilegx/tilegx.h (CALL_USED_REGISTERS): Delete.
* config/tilegx/tilegx.c (tilegx_conditional_register_usage): Don't set
call_used_regs when making a register fixed.
* config/tilepro/tilepro.h (CALL_USED_REGISTERS): Delete.
* config/tilepro/tilepro.c (tilepro_conditional_register_usage): Don't
set call_used_regs when making a register fixed.
* config/visium/visium.h (CALL_USED_REGISTERS): Delete.
* config/visium/visium.c (visium_conditional_register_usage): Remove
the old handling of call_used_regs and change the handling of
call_really_used_regs to use call_used_regs instead.
From-SVN: r275605
Diffstat (limited to 'gcc/config/m32r')
-rw-r--r-- | gcc/config/m32r/m32r.c | 7 | ||||
-rw-r--r-- | gcc/config/m32r/m32r.h | 4 |
2 files changed, 3 insertions, 8 deletions
diff --git a/gcc/config/m32r/m32r.c b/gcc/config/m32r/m32r.c index 52a1e26..c3bb17b 100644 --- a/gcc/config/m32r/m32r.c +++ b/gcc/config/m32r/m32r.c @@ -1526,7 +1526,7 @@ static struct m32r_frame_info zero_frame_info; Don't consider them here. */ #define MUST_SAVE_REGISTER(regno, interrupt_p) \ ((regno) != RETURN_ADDR_REGNUM && (regno) != FRAME_POINTER_REGNUM \ - && (df_regs_ever_live_p (regno) && (!call_really_used_regs[regno] || interrupt_p))) + && (df_regs_ever_live_p (regno) && (!call_used_regs[regno] || interrupt_p))) #define MUST_SAVE_FRAME_POINTER (df_regs_ever_live_p (FRAME_POINTER_REGNUM)) #define MUST_SAVE_RETURN_ADDR (df_regs_ever_live_p (RETURN_ADDR_REGNUM) || crtl->profile) @@ -2927,10 +2927,7 @@ static void m32r_conditional_register_usage (void) { if (flag_pic) - { - fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; - call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1; - } + fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; } /* Implement TARGET_LEGITIMATE_CONSTANT_P diff --git a/gcc/config/m32r/m32r.h b/gcc/config/m32r/m32r.h index 2e7aacf..73f9856 100644 --- a/gcc/config/m32r/m32r.h +++ b/gcc/config/m32r/m32r.h @@ -348,7 +348,7 @@ #define SUBTARGET_CALL_USED_REGISTERS #endif -#define CALL_USED_REGISTERS \ +#define CALL_REALLY_USED_REGISTERS \ { \ 1, 1, 1, 1, 1, 1, 1, 1, \ 0, 0, 0, 0, 0, 0, 1, 1, \ @@ -356,8 +356,6 @@ SUBTARGET_CALL_USED_REGISTERS \ } -#define CALL_REALLY_USED_REGISTERS CALL_USED_REGISTERS - /* If defined, an initializer for a vector of integers, containing the numbers of hard registers in the order in which GCC should prefer to use them (from most preferred to least). */ |