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Hide call_used_regs in target-independent code 

Now that tests of call_used_regs go through call_used_or_fixed_reg_p,
we can hide call_used_regs from target-independent code.  (It still
needs to be available to targets for the conditional register usage
hooks.)

2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* hard-reg-set.h (call_used_regs): Only define if IN_TARGET_CODE.
	(call_used_or_fixed_reg_p): Expand definition of call_used_regs.
	* reginfo.c (call_used_regs): New macro.

From-SVN: r275604
This commit is contained in:
Richard Sandiford 2019-09-10 18:57:03 +00:00 committed by Richard Sandiford
parent 2e3d041b13
commit 53bee79cab
3 changed files with 12 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2019-09-10 Richard Sandiford <richard.sandiford@arm.com>
* hard-reg-set.h (call_used_regs): Only define if IN_TARGET_CODE.
(call_used_or_fixed_reg_p): Expand definition of call_used_regs.
* reginfo.c (call_used_regs): New macro.
2019-09-10 Richard Sandiford <richard.sandiford@arm.com>
* config/alpha/alpha.c (alpha_compute_frame_layout): Remove redundant

4
gcc/hard-reg-set.h
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@ -473,8 +473,10 @@ extern struct target_hard_regs *this_target_hard_regs;
(this_target_hard_regs->x_fixed_reg_set)
#define fixed_nonglobal_reg_set \
(this_target_hard_regs->x_fixed_nonglobal_reg_set)
#ifdef IN_TARGET_CODE
#define call_used_regs \
(this_target_hard_regs->x_call_used_regs)
#endif
#define call_really_used_regs \
(this_target_hard_regs->x_call_really_used_regs)
#define savable_regs \
@ -517,7 +519,7 @@ extern const char * reg_class_names[];
inline bool
call_used_or_fixed_reg_p (unsigned int regno)
{
return fixed_regs[regno] || call_used_regs[regno];
return fixed_regs[regno] || this_target_hard_regs->x_call_used_regs[regno];
}
#endif /* ! GCC_HARD_REG_SET_H */

3
gcc/reginfo.c
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@ -66,6 +66,9 @@ struct target_hard_regs *this_target_hard_regs = &default_target_hard_regs;
struct target_regs *this_target_regs = &default_target_regs;
#endif
#define call_used_regs \
(this_target_hard_regs->x_call_used_regs)
/* Data for initializing fixed_regs. */
static const char initial_fixed_regs[] = FIXED_REGISTERS;