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* [SH] Add -mlra option. 

From-SVN: r218888
This commit is contained in:
Kaz Kojima 2014-12-19 04:47:18 +00:00
parent 14133a4d8a
commit 106a52b7bf
3 changed files with 24 additions and 0 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2014-12-19 Kaz Kojima <kkojima@gcc.gnu.org>
* config/sh/sh.c (sh_lra_p): New function.
(TARGET_LRA_P): Define.
(sh_legitimize_reload_address): Return false if sh_lra_p is true.
* config/sh/sh.opt (mlra): New option.
2014-12-19 Kaz Kojima <kkojima@gcc.gnu.org>
* lra-constraints.c (process_address_1): Try if target can split

14
gcc/config/sh/sh.c
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@ -222,6 +222,7 @@ static int sh_mode_after (int, int, rtx_insn *);
static int sh_mode_entry (int);
static int sh_mode_exit (int);
static int sh_mode_priority (int entity, int n);
static bool sh_lra_p (void);
static rtx mark_constant_pool_use (rtx);
static tree sh_handle_interrupt_handler_attribute (tree *, tree, tree,
@ -620,6 +621,9 @@ static const struct attribute_spec sh_attribute_table[] =
#undef TARGET_ENCODE_SECTION_INFO
#define TARGET_ENCODE_SECTION_INFO sh_encode_section_info
#undef TARGET_LRA_P
#define TARGET_LRA_P sh_lra_p
#undef TARGET_SECONDARY_RELOAD
#define TARGET_SECONDARY_RELOAD sh_secondary_reload
@ -10484,6 +10488,9 @@ sh_legitimize_reload_address (rtx *p, machine_mode mode, int opnum,
enum reload_type type = (enum reload_type) itype;
const int mode_sz = GET_MODE_SIZE (mode);
if (sh_lra_p ())
return false;
if (! ALLOW_INDEXED_ADDRESS
&& GET_CODE (*p) == PLUS
&& REG_P (XEXP (*p, 0)) && REG_P (XEXP (*p, 1)))
@ -13774,6 +13781,13 @@ sh_mode_priority (int entity ATTRIBUTE_UNUSED, int n)
return ((TARGET_FPU_SINGLE != 0) ^ (n) ? FP_MODE_SINGLE : FP_MODE_DOUBLE);
}
/* Return true if we use LRA instead of reload pass. */
static bool
sh_lra_p (void)
{
return sh_lra_flag;
}
/* Implement TARGET_USE_BY_PIECES_INFRASTRUCTURE_P. */
static bool

3
gcc/config/sh/sh.opt
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@ -360,3 +360,6 @@ mfsrra
Target Var(TARGET_FSRRA)
Enable the use of the fsrra instruction
mlra
Target Report Var(sh_lra_flag) Init(0) Save
Use LRA instead of reload (transitional)