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Commit e1260576 by Richard Sandiford
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mips-protos.h (mips16e_save_restore_info): New struct. 

gcc/
2007-07-02  Sandra Loosemore  <sandra@codesourcery.com>
	    Richard Sandiford  <richard@codesourcery.com>
	    Nigel Stephens  <nigel@mips.com>

	* config/mips/mips-protos.h (mips16e_save_restore_info): New struct.
	(mips16e_output_save_restore): Declare.
	(mips16e_save_restore_pattern_p): Likewise.
	* config/mips/mips.h (GENERATE_MIPS16E_SAVE_RESTORE): New macro.
	* config/mips/mips.c (MIPS_MAX_FIRST_STACK_STEP): Return 0x7f8
	for GENERATE_MIPS16E_SAVE_RESTORE.  Return 0x400 for TARGET_MIPS16
	&& !GENERATE_MIPS16E_SAVE_RESTORE && !TARGET_64BIT.
	(BITSET_P): New global macro, extracted from...
	(mips_for_each_saved_reg): ...here.
	(mips16e_save_restore_info): New struct.
	(mips16e_s2_s8_regs, mips16e_a0_a3_regs): New variables.
	(mips16e_save_restore_regs): New variable.
	(mips_split_plus, mips16e_find_first_register): New functions.
	(mips16e_mask_registers): New function.
	(compute_frame_size): Expand the commentary before the function.
	Enforce the MIPS16e save and restore register range restrictions.
	Pad the general register save area at the low end.
	(mips16e_save_restore_reg, mips16e_build_save_restore)
	(mips16e_save_restore_pattern_p, mips16e_add_register_range)
	(mips16e_output_save_restore, mips16e_collect_propagate_value)
	(mips16e_collect_argument_save, mips16e_collect_argument_saves):
	New functions.
	(mips_expand_prologue, mips_expand_epilogue): Handle
	GENERATE_MIPS16E_SAVE_RESTORE.
	* config/mips/mips.md (*mips16e_save_restore): New pattern.

gcc/testsuite/
	* gcc.target/mips/save-restore-1.c: New test.
	* gcc.target/mips/save-restore-2.c: Likewise.
	* gcc.target/mips/save-restore-3.c: Likewise.
	* gcc.target/mips/save-restore-4.c: Likewise.

From-SVN: r126207
parent 8ad02175
Showing with 128 additions and 1 deletions
gcc/ChangeLog
2007-07-02 Sandra Loosemore <sandra@codesourcery.com>
Richard Sandiford <richard@codesourcery.com>
Nigel Stephens <nigel@mips.com>
* config/mips/mips-protos.h (mips16e_save_restore_info): New struct.
(mips16e_output_save_restore): Declare.
(mips16e_save_restore_pattern_p): Likewise.
* config/mips/mips.h (GENERATE_MIPS16E_SAVE_RESTORE): New macro.
* config/mips/mips.c (MIPS_MAX_FIRST_STACK_STEP): Return 0x7f8
for GENERATE_MIPS16E_SAVE_RESTORE. Return 0x400 for TARGET_MIPS16
&& !GENERATE_MIPS16E_SAVE_RESTORE && !TARGET_64BIT.
(BITSET_P): New global macro, extracted from...
(mips_for_each_saved_reg): ...here.
(mips16e_save_restore_info): New struct.
(mips16e_s2_s8_regs, mips16e_a0_a3_regs): New variables.
(mips16e_save_restore_regs): New variable.
(mips_split_plus, mips16e_find_first_register): New functions.
(mips16e_mask_registers): New function.
(compute_frame_size): Expand the commentary before the function.
Enforce the MIPS16e save and restore register range restrictions.
Pad the general register save area at the low end.
(mips16e_save_restore_reg, mips16e_build_save_restore)
(mips16e_save_restore_pattern_p, mips16e_add_register_range)
(mips16e_output_save_restore, mips16e_collect_propagate_value)
(mips16e_collect_argument_save, mips16e_collect_argument_saves):
New functions.
(mips_expand_prologue, mips_expand_epilogue): Handle
GENERATE_MIPS16E_SAVE_RESTORE.
* config/mips/mips.md (*mips16e_save_restore): New pattern.
2007-07-02 Uros Bizjak <ubizjak@gmail.com>
PR tree-optimization/31966
......
gcc/config/mips/mips-protos.h
......@@ -136,6 +136,8 @@ enum mips_loadgp_style {
LOADGP_RTP
};
struct mips16e_save_restore_info;
extern bool mips_symbolic_constant_p (rtx, enum mips_symbol_type *);
extern int mips_regno_mode_ok_for_base_p (int, enum machine_mode, int);
extern bool mips_stack_address_p (rtx, enum machine_mode);
......@@ -261,4 +263,8 @@ extern const char *current_section_name (void);
extern unsigned int current_section_flags (void);
extern bool mips_use_ins_ext_p (rtx, rtx, rtx);
extern const char *mips16e_output_save_restore (rtx, HOST_WIDE_INT);
extern bool mips16e_save_restore_pattern_p (rtx, HOST_WIDE_INT,
struct mips16e_save_restore_info *);
#endif /* ! GCC_MIPS_PROTOS_H */
gcc/config/mips/mips.h
......@@ -209,6 +209,8 @@ extern const struct mips_rtx_cost_data *mips_cost;
#define TARGET_MIPS16 ((target_flags & MASK_MIPS16) != 0)
/* Generate mips16e code. Default 16bit ASE for mips32/mips32r2/mips64 */
#define GENERATE_MIPS16E (TARGET_MIPS16 && mips_isa >= 32)
/* Generate mips16e register save/restore sequences. */
#define GENERATE_MIPS16E_SAVE_RESTORE (GENERATE_MIPS16E && mips_abi == ABI_32)
/* Generic ISA defines. */
#define ISA_MIPS1 (mips_isa == 1)
......
gcc/config/mips/mips.md
......@@ -5583,7 +5583,26 @@
"reload_completed"
[(match_dup 0)]
{ operands[0] = mips_rewrite_small_data (operands[0]); })
;;
;; ....................
;;
;; MIPS16e Save/Restore
;;
;; ....................
;;
(define_insn "*mips16e_save_restore"
[(match_parallel 0 ""
[(set (match_operand:SI 1 "register_operand")
(plus:SI (match_dup 1)
(match_operand:SI 2 "const_int_operand")))])]
"operands[1] == stack_pointer_rtx
&& mips16e_save_restore_pattern_p (operands[0], INTVAL (operands[2]), NULL)"
{ return mips16e_output_save_restore (operands[0], INTVAL (operands[2])); }
[(set_attr "type" "arith")
(set_attr "extended_mips16" "yes")])
; Thread-Local Storage
; The TLS base pointer is accessed via "rdhwr $v1, $29". No current
......
gcc/testsuite/ChangeLog
2007-07-02 Richard Sandiford <richard@codesourcery.com>
* gcc.target/mips/save-restore-1.c: New test.
* gcc.target/mips/save-restore-2.c: Likewise.
* gcc.target/mips/save-restore-3.c: Likewise.
* gcc.target/mips/save-restore-4.c: Likewise.
2007-07-02 Uros Bizjak <ubizjak@gmail.com>
PR tree-optimization/31966
gcc/testsuite/gcc.target/mips/save-restore-1.c 0 → 100644
/* Check that we can use the save instruction to save varargs. */
/* { dg-mips-options "-mips32r2 -mgp32 -mips16 -O2" } */
#include <stdarg.h>
int bar (int, va_list ap);
int
foo (int n, ...)
{
va_list ap;
int i;
va_start (ap, n);
i = bar (n, ap);
va_end (ap);
return i + 1;
}
/* { dg-final { scan-assembler "\tsave\t\\\$4-\\\$7" } } */
/* { dg-final { scan-assembler "\trestore\t" } } */
gcc/testsuite/gcc.target/mips/save-restore-2.c 0 → 100644
/* Check that we can use the save instruction to save spilled arguments. */
/* { dg-mips-options "-mips32r2 -mgp32 -mips16 -O2" } */
void
foo (int *a, int b, int c)
{
asm volatile ("" ::: "$2", "$3", "$4", "$5", "$6", "$7", "$8",
"$9", "$10", "$11", "$12", "$13", "$14", "$15", "$16",
"$17", "$18", "$19", "$20", "$21", "$22", "$23", "$24",
"$25", "$30", "memory");
a[b] = 1;
a[c] = 1;
}
/* { dg-final { scan-assembler "\tsave\t\\\$4-\\\$6," } } */
/* { dg-final { scan-assembler "\trestore\t" } } */
gcc/testsuite/gcc.target/mips/save-restore-3.c 0 → 100644
/* Check that we can use the save instruction to save spilled arguments
when the argument save area is out of range of a direct load or store. */
/* { dg-mips-options "-mips32r2 -mgp32 -mips16 -O2" } */
void bar (int *);
void
foo (int *a, int b, int c)
{
int x[0x4000];
asm volatile ("" ::: "$2", "$3", "$4", "$5", "$6", "$7", "$8",
"$9", "$10", "$11", "$12", "$13", "$14", "$15", "$16",
"$17", "$18", "$19", "$20", "$21", "$22", "$23", "$24",
"$25", "$30", "memory");
bar (x);
a[b] = 1;
a[c] = 1;
}
/* { dg-final { scan-assembler "\tsave\t\\\$4-\\\$6," } } */
/* { dg-final { scan-assembler "\trestore\t" } } */
gcc/testsuite/gcc.target/mips/save-restore-4.c 0 → 100644
/* Check that we can use the save instruction to save $16, $17 and $31. */
/* { dg-mips-options "-mips32r2 -mgp32 -mips16 -O2" } */
void bar (void);
void
foo (void)
{
bar ();
asm volatile ("" ::: "$16", "$17");
}
/* { dg-final { scan-assembler "\tsave\t\[0-9\]*,\\\$16,\\\$17,\\\$31" } } */
/* { dg-final { scan-assembler "\trestore\t\[0-9\]*,\\\$16,\\\$17,\\\$31" } } */
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