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riscv-gcc-1
Commit 49956667 by Richard Henderson Committed by Richard Henderson
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dwarf2out: Remove unused text-based unwind entry points. 

The dwarf2out_cfi_label function is privatized, the
dwarf2out_def_cfa function is merged into its last user.
The others really are unused.

        * dwarf2out.c (dwarf2out_cfi_label): Make static.
        (dwarf2out_flush_queued_reg_saves): Make static.
        (dwarf2out_reg_save): Remove.
        (dwarf2out_return_save): Remove.
        (dwarf2out_return_reg): Remove.
        (dwarf2out_reg_save_reg): Remove.
        (dwarf2out_def_cfa): Merge into ...
        (dwarf2out_frame_init): ... here.
        * dwarf2out.h, tree.h: Remove declarations as necessary.

From-SVN: r175876
parent c2b40eba
Showing with 20 additions and 87 deletions
gcc/ChangeLog
2011-07-05 Richard Henderson <rth@redhat.com>
* dwarf2out.c (dwarf2out_cfi_label): Make static.
(dwarf2out_flush_queued_reg_saves): Make static.
(dwarf2out_reg_save): Remove.
(dwarf2out_return_save): Remove.
(dwarf2out_return_reg): Remove.
(dwarf2out_reg_save_reg): Remove.
(dwarf2out_def_cfa): Merge into ...
(dwarf2out_frame_init): ... here.
* dwarf2out.h, tree.h: Remove declarations as necessary.
2011-07-05 Richard Henderson <rth@redhat.com>
* config/ia64/ia64.c (ia64_dwarf_handle_frame_unspec): Remove.
(TARGET_DWARF_HANDLE_FRAME_UNSPEC): Remove.
(ia64_expand_epilogue): Emit an empty FRAME_RELATED_EXPR for
......
gcc/dwarf2out.c
......@@ -848,7 +848,7 @@ add_cfi (cfi_vec *vec, dw_cfi_ref cfi)
/* Generate a new label for the CFI info to refer to. FORCE is true
if a label needs to be output even when using .cfi_* directives. */
char *
static char *
dwarf2out_cfi_label (bool force)
{
static char label[20];
......@@ -1080,21 +1080,6 @@ static HOST_WIDE_INT args_size;
/* The last args_size we actually output. */
static HOST_WIDE_INT old_args_size;
/* Entry point to update the canonical frame address (CFA).
LABEL is passed to add_fde_cfi. The value of CFA is now to be
calculated from REG+OFFSET. */
void
dwarf2out_def_cfa (const char *label, unsigned int reg, HOST_WIDE_INT offset)
{
dw_cfa_location loc;
loc.indirect = 0;
loc.base_offset = 0;
loc.reg = reg;
loc.offset = offset;
def_cfa_1 (label, &loc);
}
/* Determine if two dw_cfa_location structures define the same data. */
static bool
......@@ -1232,33 +1217,6 @@ reg_save (const char *label, unsigned int reg, unsigned int sreg, HOST_WIDE_INT
add_fde_cfi (label, cfi);
}
/* Entry point for saving a register to the stack. REG is the GCC register
number. LABEL and OFFSET are passed to reg_save. */
void
dwarf2out_reg_save (const char *label, unsigned int reg, HOST_WIDE_INT offset)
{
reg_save (label, DWARF_FRAME_REGNUM (reg), INVALID_REGNUM, offset);
}
/* Entry point for saving the return address in the stack.
LABEL and OFFSET are passed to reg_save. */
void
dwarf2out_return_save (const char *label, HOST_WIDE_INT offset)
{
reg_save (label, DWARF_FRAME_RETURN_COLUMN, INVALID_REGNUM, offset);
}
/* Entry point for saving the return address in a register.
LABEL and SREG are passed to reg_save. */
void
dwarf2out_return_reg (const char *label, unsigned int sreg)
{
reg_save (label, DWARF_FRAME_RETURN_COLUMN, DWARF_FRAME_REGNUM (sreg), 0);
}
/* Record the initial position of the return address. RTL is
INCOMING_RETURN_ADDR_RTX. */
......@@ -1816,7 +1774,7 @@ queue_reg_save (const char *label, rtx reg, rtx sreg, HOST_WIDE_INT offset)
/* Output all the entries in QUEUED_REG_SAVES. */
void
static void
dwarf2out_flush_queued_reg_saves (void)
{
struct queued_reg_save *q;
......@@ -1866,20 +1824,6 @@ clobbers_queued_reg_save (const_rtx insn)
return false;
}
/* Entry point for saving the first register into the second. */
void
dwarf2out_reg_save_reg (const char *label, rtx reg, rtx sreg)
{
unsigned int regno, sregno;
record_reg_saved_in_reg (sreg, reg);
regno = DWARF_FRAME_REGNUM (REGNO (reg));
sregno = DWARF_FRAME_REGNUM (REGNO (sreg));
reg_save (label, regno, sregno, 0);
}
/* What register, if any, is currently saved in REG? */
static rtx
......@@ -4273,6 +4217,8 @@ dwarf2out_end_epilogue (unsigned int line ATTRIBUTE_UNUSED,
void
dwarf2out_frame_init (void)
{
dw_cfa_location loc;
/* Allocate the initial hunk of the fde_table. */
fde_table = ggc_alloc_cleared_vec_dw_fde_node (FDE_TABLE_INCREMENT);
fde_table_allocated = FDE_TABLE_INCREMENT;
......@@ -4282,7 +4228,10 @@ dwarf2out_frame_init (void)
sake of lookup_cfa. */
/* On entry, the Canonical Frame Address is at SP. */
dwarf2out_def_cfa (NULL, STACK_POINTER_REGNUM, INCOMING_FRAME_SP_OFFSET);
memset(&loc, 0, sizeof (loc));
loc.reg = STACK_POINTER_REGNUM;
loc.offset = INCOMING_FRAME_SP_OFFSET;
def_cfa_1 (NULL, &loc);
if (targetm.debug_unwind_info () == UI_DWARF2
|| targetm_common.except_unwind_info (&global_options) == UI_DWARF2)
......
gcc/dwarf2out.h
......@@ -23,7 +23,6 @@ extern void dwarf2out_frame_debug (rtx, bool);
extern void dwarf2out_frame_debug_init (void);
extern void dwarf2out_cfi_begin_epilogue (rtx);
extern void dwarf2out_frame_debug_restore_state (void);
extern void dwarf2out_flush_queued_reg_saves (void);
extern void debug_dwarf (void);
struct die_struct;
......
gcc/tree.h
......@@ -5602,33 +5602,6 @@ extern tree tree_overlaps_hard_reg_set (tree, HARD_REG_SET *);
#endif
/* In dwarf2out.c */
/* Interface of the DWARF2 unwind info support. */
/* Generate a new label for the CFI info to refer to. */
extern char *dwarf2out_cfi_label (bool);
/* Entry point to update the canonical frame address (CFA). */
extern void dwarf2out_def_cfa (const char *, unsigned, HOST_WIDE_INT);
/* Entry point for saving a register to the stack. */
extern void dwarf2out_reg_save (const char *, unsigned, HOST_WIDE_INT);
/* Entry point for saving the return address in the stack. */
extern void dwarf2out_return_save (const char *, HOST_WIDE_INT);
/* Entry point for saving the return address in a register. */
extern void dwarf2out_return_reg (const char *, unsigned);
/* Entry point for saving the first register into the second. */
extern void dwarf2out_reg_save_reg (const char *, rtx, rtx);
/* In tree-inline.c */
/* The type of a set of already-visited pointers. Functions for creating
......
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