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re PR middle-end/52372 (gcc.target/mips/mips16-attributes{,-4}.c SEGV in dwf_regno)

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gcc/
	PR middle-end/52372
	* rtl.h (pc_rtx, ret_rtx, simple_return_rtx, cc0_rtx): Redefine as
	variables.
	(GR_PC, GR_CC0, GR_RETURN, GR_SIMPLE_RETURN): Delete.
	* emit-rtl.c (pc_rtx, ret_rtx, simple_return_rtx, cc0_rtx): New
	variables.
	(init_emit_regs): Move associated initialization to...
	(init_emit_once): ...here.

From-SVN: r185013
This commit is contained in:
Richard Sandiford 2012-03-06 19:22:10 +00:00 • committed by Richard Sandiford
parent 22a89c862f
commit ca4adc913d
3 changed files with 27 additions and 14 deletions
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11
gcc/ChangeLog
View file

@ -1,3 +1,14 @@
2012-03-06 Richard Sandiford <rdsandiford@googlemail.com>
PR middle-end/52372
* rtl.h (pc_rtx, ret_rtx, simple_return_rtx, cc0_rtx): Redefine as
variables.
(GR_PC, GR_CC0, GR_RETURN, GR_SIMPLE_RETURN): Delete.
* emit-rtl.c (pc_rtx, ret_rtx, simple_return_rtx, cc0_rtx): New
variables.
(init_emit_regs): Move associated initialization to...
(init_emit_once): ...here.
2012-03-06 Richard Henderson <rth@redhat.com>
* config/m68k/m68k.h (ISA_HAS_TAS): New.

15
gcc/emit-rtl.c
View file

@ -117,6 +117,12 @@ FIXED_VALUE_TYPE fconst1[MAX_FCONST1];
rtx const_int_rtx[MAX_SAVED_CONST_INT * 2 + 1];
/* Standard pieces of rtx, to be substituted directly into things. */
rtx pc_rtx;
rtx ret_rtx;
rtx simple_return_rtx;
rtx cc0_rtx;
/* A hash table storing CONST_INTs whose absolute value is greater
than MAX_SAVED_CONST_INT. */
@ -5536,10 +5542,6 @@ init_emit_regs (void)
init_reg_modes_target ();
/* Assign register numbers to the globally defined register rtx. */
pc_rtx = gen_rtx_fmt_ (PC, VOIDmode);
ret_rtx = gen_rtx_fmt_ (RETURN, VOIDmode);
simple_return_rtx = gen_rtx_fmt_ (SIMPLE_RETURN, VOIDmode);
cc0_rtx = gen_rtx_fmt_ (CC0, VOIDmode);
stack_pointer_rtx = gen_raw_REG (Pmode, STACK_POINTER_REGNUM);
frame_pointer_rtx = gen_raw_REG (Pmode, FRAME_POINTER_REGNUM);
hard_frame_pointer_rtx = gen_raw_REG (Pmode, HARD_FRAME_POINTER_REGNUM);
@ -5855,6 +5857,11 @@ init_emit_once (void)
const_tiny_rtx[0][(int) BImode] = const0_rtx;
if (STORE_FLAG_VALUE == 1)
const_tiny_rtx[1][(int) BImode] = const1_rtx;
pc_rtx = gen_rtx_fmt_ (PC, VOIDmode);
ret_rtx = gen_rtx_fmt_ (RETURN, VOIDmode);
simple_return_rtx = gen_rtx_fmt_ (SIMPLE_RETURN, VOIDmode);
cc0_rtx = gen_rtx_fmt_ (CC0, VOIDmode);
}
/* Produce exact duplicate of insn INSN after AFTER.

15
gcc/rtl.h
View file

@ -2089,6 +2089,11 @@ extern GTY(()) rtx const_tiny_rtx[4][(int) MAX_MACHINE_MODE];
#define CONST2_RTX(MODE) (const_tiny_rtx[2][(int) (MODE)])
#define CONSTM1_RTX(MODE) (const_tiny_rtx[3][(int) (MODE)])
extern rtx pc_rtx;
extern rtx cc0_rtx;
extern rtx ret_rtx;
extern rtx simple_return_rtx;
/* If HARD_FRAME_POINTER_REGNUM is defined, then a special dummy reg
is used to represent the frame pointer. This is because the
hard frame pointer and the automatic variables are separated by an amount
@ -2112,10 +2117,6 @@ extern GTY(()) rtx const_tiny_rtx[4][(int) MAX_MACHINE_MODE];
/* Index labels for global_rtl. */
enum global_rtl_index
{
GR_PC,
GR_CC0,
GR_RETURN,
GR_SIMPLE_RETURN,
GR_STACK_POINTER,
GR_FRAME_POINTER,
/* For register elimination to work properly these hard_frame_pointer_rtx,
@ -2208,12 +2209,6 @@ extern struct target_rtl *this_target_rtl;
#define mode_mem_attrs \
(this_target_rtl->x_mode_mem_attrs)
/* Standard pieces of rtx, to be substituted directly into things. */
#define pc_rtx (global_rtl[GR_PC])
#define ret_rtx (global_rtl[GR_RETURN])
#define simple_return_rtx (global_rtl[GR_SIMPLE_RETURN])
#define cc0_rtx (global_rtl[GR_CC0])
/* All references to certain hard regs, except those created
by allocating pseudo regs into them (when that's possible),
go through these unique rtx objects. */