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riscv-gcc-1
Commit b12b5029 by Nick Clifton Committed by Nick Clifton
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v850.h (DBX_DEBUGGING_INFO): Define. 

	* config/v850/v850.h (DBX_DEBUGGING_INFO): Define.
	(ASM_GENERATE_INTERNAL_LABEL): Define if not already provided.
	* config/v850/v850.c (compute_register_save_size): Always include
	the link pointer.
	(increment_stack): New function - emits insns to increment or
	decrement the stack pointer.
	(expand_prologue, expand_epilogue): Use it.
	(expand_prologue): Set the function stack size, if requested.
	(v850_debug_unwind_info): New function.
	(TARGET_DEBUG_UNWIND_INFO): Define.

From-SVN: r191076
parent c6c36e73
Showing with 72 additions and 69 deletions
gcc/ChangeLog
2012-09-07 Nick Clifton <nickc@redhat.com>
* config/v850/v850.h (DBX_DEBUGGING_INFO): Define.
(ASM_GENERATE_INTERNAL_LABEL): Define if not already provided.
* config/v850/v850.c (compute_register_save_size): Always include
the link pointer.
(increment_stack): New function - emits insns to increment or
decrement the stack pointer.
(expand_prologue, expand_epilogue): Use it.
(expand_prologue): Set the function stack size, if requested.
(v850_debug_unwind_info): New function.
(TARGET_DEBUG_UNWIND_INFO): Define.
2012-09-07 Richard Earnshaw <rearnsha@arm.com>
PR tree-ssa/54295
......
gcc/config/v850/predicates.md
......@@ -497,5 +497,3 @@
return op == CONST0_RTX(mode);
})
gcc/config/v850/v850.c
/* Subroutines for insn-output.c for NEC V850 series
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
Contributed by Jeff Law (law@cygnus.com).
This file is part of GCC.
......@@ -375,13 +375,13 @@ v850_print_operand (FILE * file, rtx x, int code)
switch (code)
{
case 'c':
/* We use 'c' operands with symbols for .vtinherit */
/* We use 'c' operands with symbols for .vtinherit. */
if (GET_CODE (x) == SYMBOL_REF)
{
output_addr_const(file, x);
break;
}
/* fall through */
/* Fall through. */
case 'b':
case 'B':
case 'C':
......@@ -428,7 +428,7 @@ v850_print_operand (FILE * file, rtx x, int code)
gcc_unreachable ();
}
break;
case 'F': /* high word of CONST_DOUBLE */
case 'F': /* High word of CONST_DOUBLE. */
switch (GET_CODE (x))
{
case CONST_INT:
......@@ -444,7 +444,7 @@ v850_print_operand (FILE * file, rtx x, int code)
gcc_unreachable ();
}
break;
case 'G': /* low word of CONST_DOUBLE */
case 'G': /* Low word of CONST_DOUBLE. */
switch (GET_CODE (x))
{
case CONST_INT:
......@@ -537,7 +537,7 @@ v850_print_operand (FILE * file, rtx x, int code)
break;
}
case 'W': /* print the instruction suffix */
case 'W': /* Print the instruction suffix. */
switch (GET_MODE (x))
{
default:
......@@ -549,11 +549,11 @@ v850_print_operand (FILE * file, rtx x, int code)
case SFmode: fputs (".w", file); break;
}
break;
case '.': /* register r0 */
case '.': /* Register r0. */
fputs (reg_names[0], file);
break;
case 'z': /* reg or zero */
if (GET_CODE (x) == REG)
case 'z': /* Reg or zero. */
if (REG_P (x))
fputs (reg_names[REGNO (x)], file);
else if ((GET_MODE(x) == SImode
|| GET_MODE(x) == DFmode
......@@ -1448,13 +1448,13 @@ compute_register_save_size (long * p_reg_saved)
int call_p = df_regs_ever_live_p (LINK_POINTER_REGNUM);
long reg_saved = 0;
/* Count the return pointer if we need to save it. */
if (crtl->profile && !call_p)
/* Always save the link pointer - we cannot rely upon df_regs_ever_live_p. */
if (!call_p)
{
df_set_regs_ever_live (LINK_POINTER_REGNUM, true);
call_p = 1;
}
/* Count space for the register saves. */
if (interrupt_handler)
{
......@@ -1589,6 +1589,27 @@ use_prolog_function (int num_save, int frame_size)
return ((save_func_len + restore_func_len) < (save_normal_len + restore_normal_len));
}
static void
increment_stack (unsigned int amount)
{
rtx inc;
if (amount == 0)
return;
inc = GEN_INT (amount);
if (! CONST_OK_FOR_K (amount))
{
rtx reg = gen_rtx_REG (Pmode, 12);
emit_move_insn (reg, inc);
inc = reg;
}
emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, inc));
}
void
expand_prologue (void)
{
......@@ -1605,6 +1626,9 @@ expand_prologue (void)
actual_fsize = compute_frame_size (size, &reg_saved);
if (flag_stack_usage_info)
current_function_static_stack_size = actual_fsize;
/* Save/setup global registers for interrupt functions right now. */
if (interrupt_handler)
{
......@@ -1710,9 +1734,7 @@ expand_prologue (void)
offset = init_stack_alloc - 4;
if (init_stack_alloc)
emit_insn (gen_addsi3 (stack_pointer_rtx,
stack_pointer_rtx,
GEN_INT (- (signed) init_stack_alloc)));
increment_stack (- (signed) init_stack_alloc);
/* Save the return pointer first. */
if (num_save > 0 && REGNO (save_regs[num_save-1]) == LINK_POINTER_REGNUM)
......@@ -1743,16 +1765,8 @@ expand_prologue (void)
if (actual_fsize > init_stack_alloc)
{
int diff = actual_fsize - init_stack_alloc;
if (CONST_OK_FOR_K (-diff))
emit_insn (gen_addsi3 (stack_pointer_rtx,
stack_pointer_rtx,
GEN_INT (-diff)));
else
{
rtx reg = gen_rtx_REG (Pmode, 12);
emit_move_insn (reg, GEN_INT (-diff));
emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, reg));
}
increment_stack (- diff);
}
/* If we need a frame pointer, set it up now. */
......@@ -1837,25 +1851,10 @@ expand_epilogue (void)
rtx insn;
actual_fsize -= alloc_stack;
if (actual_fsize)
{
if (CONST_OK_FOR_K (actual_fsize))
emit_insn (gen_addsi3 (stack_pointer_rtx,
stack_pointer_rtx,
GEN_INT (actual_fsize)));
else
{
rtx reg = gen_rtx_REG (Pmode, 12);
emit_move_insn (reg, GEN_INT (actual_fsize));
emit_insn (gen_addsi3 (stack_pointer_rtx,
stack_pointer_rtx,
reg));
}
}
increment_stack (actual_fsize);
insn = emit_jump_insn (restore_all);
INSN_CODE (insn) = code;
}
else
restore_all = NULL_RTX;
......@@ -1878,24 +1877,7 @@ expand_epilogue (void)
/* Deallocate the rest of the stack if it is > 32K. */
if ((unsigned int) actual_fsize > init_stack_free)
{
int diff;
diff = actual_fsize - init_stack_free;
if (CONST_OK_FOR_K (diff))
emit_insn (gen_addsi3 (stack_pointer_rtx,
stack_pointer_rtx,
GEN_INT (diff)));
else
{
rtx reg = gen_rtx_REG (Pmode, 12);
emit_move_insn (reg, GEN_INT (diff));
emit_insn (gen_addsi3 (stack_pointer_rtx,
stack_pointer_rtx,
reg));
}
}
increment_stack (actual_fsize - init_stack_free);
/* Special case interrupt functions that save all registers
for a call. */
......@@ -1936,10 +1918,7 @@ expand_epilogue (void)
}
/* Cut back the remainder of the stack. */
if (init_stack_free)
emit_insn (gen_addsi3 (stack_pointer_rtx,
stack_pointer_rtx,
GEN_INT (init_stack_free)));
increment_stack (init_stack_free);
}
/* And return or use reti for interrupt handlers. */
......@@ -3088,6 +3067,15 @@ static const struct attribute_spec v850_attribute_table[] =
{ NULL, 0, 0, false, false, false, NULL, false }
};
static enum unwind_info_type
v850_debug_unwind_info (void)
{
return UI_NONE;
}
#undef TARGET_DEBUG_UNWIND_INFO
#define TARGET_DEBUG_UNWIND_INFO v850_debug_unwind_info
/* Initialize the GCC target structure. */
#undef TARGET_MEMORY_MOVE_COST
......
gcc/config/v850/v850.h
......@@ -786,8 +786,14 @@ typedef enum
#define DEFAULT_GDB_EXTENSIONS 1
/* Use stabs debugging info by default. */
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
#define DBX_DEBUGGING_INFO 1
#ifndef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \
sprintf (STRING, "*.%s%u", PREFIX, (unsigned int)(NUM))
#endif
/* Specify the machine mode that this machine uses
for the index in the tablejump instruction. */
......
gcc/config/v850/v850.md
......@@ -2689,5 +2689,3 @@
"jarl __restore_all_interrupt,r10"
[(set_attr "length" "4")
(set_attr "cc" "clobber")])
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