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reg-stack.c: Use rtx_insn 

gcc/
	* reg-stack.c (next_flags_user): Strengthen return type and param
	"insn" from rtx to rtx_insn *.
	(straighten_stack): Likewise for param "insn".
	(check_asm_stack_operands): Likewise.
	(remove_regno_note): Likewise.
	(emit_pop_insn): Likewise for return type, param "insn", local
	"pop_insn".
	(emit_swap_insn):  Strengthen param "insn" and locals "i1", "tmp",
	"limit" from rtx to rtx_insn *.
	(swap_to_top): Likewise for param "insn".
	(move_for_stack_reg): Likewise.
	(move_nan_for_stack_reg): Likewise.
	(swap_rtx_condition): Likewise.
	(compare_for_stack_reg): Likewise.
	(subst_all_stack_regs_in_debug_insn): Likewise.
	(subst_stack_regs_pat): Likewise, and local "insn2".
	(subst_asm_stack_regs): Strengthen param "insn" from rtx to
	rtx_insn *.
	(subst_stack_regs): Likewise.
	(change_stack): Likewise.
	(convert_regs_1): Likewise for locals "insn", "next".

From-SVN: r214365
This commit is contained in:
David Malcolm 2014-08-22 20:14:19 +00:00 committed by David Malcolm
parent 59a0c0329b
commit d8aeaba0c3
2 changed files with 68 additions and 42 deletions
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24
gcc/ChangeLog
View File

@ -1,3 +1,27 @@
2014-08-22 David Malcolm <dmalcolm@redhat.com>
* reg-stack.c (next_flags_user): Strengthen return type and param
"insn" from rtx to rtx_insn *.
(straighten_stack): Likewise for param "insn".
(check_asm_stack_operands): Likewise.
(remove_regno_note): Likewise.
(emit_pop_insn): Likewise for return type, param "insn", local
"pop_insn".
(emit_swap_insn): Strengthen param "insn" and locals "i1", "tmp",
"limit" from rtx to rtx_insn *.
(swap_to_top): Likewise for param "insn".
(move_for_stack_reg): Likewise.
(move_nan_for_stack_reg): Likewise.
(swap_rtx_condition): Likewise.
(compare_for_stack_reg): Likewise.
(subst_all_stack_regs_in_debug_insn): Likewise.
(subst_stack_regs_pat): Likewise, and local "insn2".
(subst_asm_stack_regs): Strengthen param "insn" from rtx to
rtx_insn *.
(subst_stack_regs): Likewise.
(change_stack): Likewise.
(convert_regs_1): Likewise for locals "insn", "next".
2014-08-22 David Malcolm <dmalcolm@redhat.com>
* ree.c (struct ext_cand): Strengthen field "insn" from rtx to

86
gcc/reg-stack.c
View File

@ -247,25 +247,25 @@ static int stack_regs_mentioned_p (const_rtx pat);
static void pop_stack (stack_ptr, int);
static rtx *get_true_reg (rtx *);
static int check_asm_stack_operands (rtx);
static int check_asm_stack_operands (rtx_insn *);
static void get_asm_operands_in_out (rtx, int *, int *);
static rtx stack_result (tree);
static void replace_reg (rtx *, int);
static void remove_regno_note (rtx, enum reg_note, unsigned int);
static void remove_regno_note (rtx_insn *, enum reg_note, unsigned int);
static int get_hard_regnum (stack_ptr, rtx);
static rtx emit_pop_insn (rtx, stack_ptr, rtx, enum emit_where);
static void swap_to_top (rtx, stack_ptr, rtx, rtx);
static bool move_for_stack_reg (rtx, stack_ptr, rtx);
static bool move_nan_for_stack_reg (rtx, stack_ptr, rtx);
static rtx_insn *emit_pop_insn (rtx_insn *, stack_ptr, rtx, enum emit_where);
static void swap_to_top (rtx_insn *, stack_ptr, rtx, rtx);
static bool move_for_stack_reg (rtx_insn *, stack_ptr, rtx);
static bool move_nan_for_stack_reg (rtx_insn *, stack_ptr, rtx);
static int swap_rtx_condition_1 (rtx);
static int swap_rtx_condition (rtx);
static void compare_for_stack_reg (rtx, stack_ptr, rtx);
static bool subst_stack_regs_pat (rtx, stack_ptr, rtx);
static void subst_asm_stack_regs (rtx, stack_ptr);
static bool subst_stack_regs (rtx, stack_ptr);
static void change_stack (rtx, stack_ptr, stack_ptr, enum emit_where);
static int swap_rtx_condition (rtx_insn *);
static void compare_for_stack_reg (rtx_insn *, stack_ptr, rtx);
static bool subst_stack_regs_pat (rtx_insn *, stack_ptr, rtx);
static void subst_asm_stack_regs (rtx_insn *, stack_ptr);
static bool subst_stack_regs (rtx_insn *, stack_ptr);
static void change_stack (rtx_insn *, stack_ptr, stack_ptr, enum emit_where);
static void print_stack (FILE *, stack_ptr);
static rtx next_flags_user (rtx);
static rtx_insn *next_flags_user (rtx_insn *);
/* Return nonzero if any stack register is mentioned somewhere within PAT. */
@ -330,8 +330,8 @@ stack_regs_mentioned (const_rtx insn)
static rtx ix86_flags_rtx;
static rtx
next_flags_user (rtx insn)
static rtx_insn *
next_flags_user (rtx_insn *insn)
{
/* Search forward looking for the first use of this value.
Stop at block boundaries. */
@ -344,15 +344,15 @@ next_flags_user (rtx insn)
return insn;
if (CALL_P (insn))
return NULL_RTX;
return NULL;
}
return NULL_RTX;
return NULL;
}
/* Reorganize the stack into ascending numbers, before this insn. */
static void
straighten_stack (rtx insn, stack_ptr regstack)
straighten_stack (rtx_insn *insn, stack_ptr regstack)
{
struct stack_def temp_stack;
int top;
@ -453,7 +453,7 @@ static bool any_malformed_asm;
numbers below refer to that explanation. */
static int
check_asm_stack_operands (rtx insn)
check_asm_stack_operands (rtx_insn *insn)
{
int i;
int n_clobbers;
@ -695,7 +695,7 @@ replace_reg (rtx *reg, int regno)
number REGNO from INSN. Remove only one such note. */
static void
remove_regno_note (rtx insn, enum reg_note note, unsigned int regno)
remove_regno_note (rtx_insn *insn, enum reg_note note, unsigned int regno)
{
rtx *note_link, this_rtx;
@ -738,10 +738,11 @@ get_hard_regnum (stack_ptr regstack, rtx reg)
and source is the top of stack. A death note for the top of stack
cases the movdf pattern to pop. */
static rtx
emit_pop_insn (rtx insn, stack_ptr regstack, rtx reg, enum emit_where where)
static rtx_insn *
emit_pop_insn (rtx_insn *insn, stack_ptr regstack, rtx reg, enum emit_where where)
{
rtx pop_insn, pop_rtx;
rtx_insn *pop_insn;
rtx pop_rtx;
int hard_regno;
/* For complex types take care to pop both halves. These may survive in
@ -751,7 +752,7 @@ emit_pop_insn (rtx insn, stack_ptr regstack, rtx reg, enum emit_where where)
rtx reg1 = FP_MODE_REG (REGNO (reg), DFmode);
rtx reg2 = FP_MODE_REG (REGNO (reg) + 1, DFmode);
pop_insn = NULL_RTX;
pop_insn = NULL;
if (get_hard_regnum (regstack, reg1) >= 0)
pop_insn = emit_pop_insn (insn, regstack, reg1, where);
if (get_hard_regnum (regstack, reg2) >= 0)
@ -790,12 +791,12 @@ emit_pop_insn (rtx insn, stack_ptr regstack, rtx reg, enum emit_where where)
If REG is already at the top of the stack, no insn is emitted. */
static void
emit_swap_insn (rtx insn, stack_ptr regstack, rtx reg)
emit_swap_insn (rtx_insn *insn, stack_ptr regstack, rtx reg)
{
int hard_regno;
rtx swap_rtx;
int tmp, other_reg; /* swap regno temps */
rtx i1; /* the stack-reg insn prior to INSN */
rtx_insn *i1; /* the stack-reg insn prior to INSN */
rtx i1set = NULL_RTX; /* the SET rtx within I1 */
hard_regno = get_hard_regnum (regstack, reg);
@ -825,8 +826,8 @@ emit_swap_insn (rtx insn, stack_ptr regstack, rtx reg)
i1 = NULL;
if (current_block && insn != BB_HEAD (current_block))
{
rtx tmp = PREV_INSN (insn);
rtx limit = PREV_INSN (BB_HEAD (current_block));
rtx_insn *tmp = PREV_INSN (insn);
rtx_insn *limit = PREV_INSN (BB_HEAD (current_block));
while (tmp != limit)
{
if (LABEL_P (tmp)
@ -897,7 +898,7 @@ emit_swap_insn (rtx insn, stack_ptr regstack, rtx reg)
is emitted. */
static void
swap_to_top (rtx insn, stack_ptr regstack, rtx src1, rtx src2)
swap_to_top (rtx_insn *insn, stack_ptr regstack, rtx src1, rtx src2)
{
struct stack_def temp_stack;
int regno, j, k, temp;
@ -938,7 +939,7 @@ swap_to_top (rtx insn, stack_ptr regstack, rtx src1, rtx src2)
was deleted in the process. */
static bool
move_for_stack_reg (rtx insn, stack_ptr regstack, rtx pat)
move_for_stack_reg (rtx_insn *insn, stack_ptr regstack, rtx pat)
{
rtx *psrc = get_true_reg (&SET_SRC (pat));
rtx *pdest = get_true_reg (&SET_DEST (pat));
@ -1089,7 +1090,7 @@ move_for_stack_reg (rtx insn, stack_ptr regstack, rtx pat)
a NaN into DEST, then invokes move_for_stack_reg. */
static bool
move_nan_for_stack_reg (rtx insn, stack_ptr regstack, rtx dest)
move_nan_for_stack_reg (rtx_insn *insn, stack_ptr regstack, rtx dest)
{
rtx pat;
@ -1137,7 +1138,7 @@ swap_rtx_condition_1 (rtx pat)
}
static int
swap_rtx_condition (rtx insn)
swap_rtx_condition (rtx_insn *insn)
{
rtx pat = PATTERN (insn);
@ -1228,7 +1229,7 @@ swap_rtx_condition (rtx insn)
set up. */
static void
compare_for_stack_reg (rtx insn, stack_ptr regstack, rtx pat_src)
compare_for_stack_reg (rtx_insn *insn, stack_ptr regstack, rtx pat_src)
{
rtx *src1, *src2;
rtx src1_note, src2_note;
@ -1337,7 +1338,7 @@ subst_stack_regs_in_debug_insn (rtx *loc, void *data)
the REGs in it, reset the debug insn. */
static void
subst_all_stack_regs_in_debug_insn (rtx insn, struct stack_def *regstack)
subst_all_stack_regs_in_debug_insn (rtx_insn *insn, struct stack_def *regstack)
{
int ret = for_each_rtx (&INSN_VAR_LOCATION_LOC (insn),
subst_stack_regs_in_debug_insn,
@ -1354,7 +1355,7 @@ subst_all_stack_regs_in_debug_insn (rtx insn, struct stack_def *regstack)
was deleted in the process. */
static bool
subst_stack_regs_pat (rtx insn, stack_ptr regstack, rtx pat)
subst_stack_regs_pat (rtx_insn *insn, stack_ptr regstack, rtx pat)
{
rtx *dest, *src;
bool control_flow_insn_deleted = false;
@ -1431,7 +1432,7 @@ subst_stack_regs_pat (rtx insn, stack_ptr regstack, rtx pat)
if (get_hard_regnum (regstack, u) == -1)
{
rtx pat2 = gen_rtx_CLOBBER (VOIDmode, u);
rtx insn2 = emit_insn_before (pat2, insn);
rtx_insn *insn2 = emit_insn_before (pat2, insn);
control_flow_insn_deleted
|= move_nan_for_stack_reg (insn2, regstack, u);
}
@ -1567,14 +1568,14 @@ subst_stack_regs_pat (rtx insn, stack_ptr regstack, rtx pat)
if (src1_hard_regnum == -1)
{
rtx pat2 = gen_rtx_CLOBBER (VOIDmode, *src1);
rtx insn2 = emit_insn_before (pat2, insn);
rtx_insn *insn2 = emit_insn_before (pat2, insn);
control_flow_insn_deleted
|= move_nan_for_stack_reg (insn2, regstack, *src1);
}
if (src2_hard_regnum == -1)
{
rtx pat2 = gen_rtx_CLOBBER (VOIDmode, *src2);
rtx insn2 = emit_insn_before (pat2, insn);
rtx_insn *insn2 = emit_insn_before (pat2, insn);
control_flow_insn_deleted
|= move_nan_for_stack_reg (insn2, regstack, *src2);
}
@ -2002,7 +2003,7 @@ subst_stack_regs_pat (rtx insn, stack_ptr regstack, rtx pat)
requirements, since record_asm_stack_regs removes any problem asm. */
static void
subst_asm_stack_regs (rtx insn, stack_ptr regstack)
subst_asm_stack_regs (rtx_insn *insn, stack_ptr regstack)
{
rtx body = PATTERN (insn);
@ -2283,7 +2284,7 @@ subst_asm_stack_regs (rtx insn, stack_ptr regstack)
a control flow insn was deleted in the process. */
static bool
subst_stack_regs (rtx insn, stack_ptr regstack)
subst_stack_regs (rtx_insn *insn, stack_ptr regstack)
{
rtx *note_link, note;
bool control_flow_insn_deleted = false;
@ -2395,7 +2396,8 @@ subst_stack_regs (rtx insn, stack_ptr regstack)
is no longer needed once this has executed. */
static void
change_stack (rtx insn, stack_ptr old, stack_ptr new_stack, enum emit_where where)
change_stack (rtx_insn *insn, stack_ptr old, stack_ptr new_stack,
enum emit_where where)
{
int reg;
int update_end = 0;
@ -2894,7 +2896,7 @@ convert_regs_1 (basic_block block)
struct stack_def regstack;
block_info bi = BLOCK_INFO (block);
int reg;
rtx insn, next;
rtx_insn *insn, *next;
bool control_flow_insn_deleted = false;
bool cfg_altered = false;
int debug_insns_with_starting_stack = 0;