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cse.c (cse_main): Converts ifdefs on PIC_OFFSET_TABLE_REGNUM to conditionals.

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* cse.c (cse_main): Converts ifdefs on PIC_OFFSET_TABLE_REGNUM to
	conditionals.
	* defaults.h (PIC_OFFSET_TABLE_REGNUM): Default to INVALID_REGNUM.
	* emit-rtl.c (init_emit_once): Convert ifdefs to conditionals.
	* flow.c (mark_regs_live_at_end): Likewise.
	(calculate_global_regs_live): Likewise.
	* gcse.c (compute_hash_table): Likewise.
	(compute_kill_rd): Likewise.
	* resource.c (mark_target_live_regs): Likewise.
	* rtl.h (INVALID_REGNUM): New macro.

From-SVN: r39643
This commit is contained in:
Jan Hubicka 2001-02-13 21:17:45 +01:00 committed by Jan Hubicka
parent b1675dbd66
commit 848e0190fb
8 changed files with 30 additions and 13 deletions

13
gcc/ChangeLog

@ -1,3 +1,16 @@
Tue Feb 13 21:09:11 CET 2001 Jan Hubicka <jh@suse.cz>
* cse.c (cse_main): Converts ifdefs on PIC_OFFSET_TABLE_REGNUM to
conditionals.
* defaults.h (PIC_OFFSET_TABLE_REGNUM): Default to INVALID_REGNUM.
* emit-rtl.c (init_emit_once): Convert ifdefs to conditionals.
* flow.c (mark_regs_live_at_end): Likewise.
(calculate_global_regs_live): Likewise.
* gcse.c (compute_hash_table): Likewise.
(compute_kill_rd): Likewise.
* resource.c (mark_target_live_regs): Likewise.
* rtl.h (INVALID_REGNUM): New macro.
Tue Feb 13 20:59:22 CET 2001 Jan Hubicka <jh@suse.cz>
* i386.md (fixsfsi2, fixdfdi2): Fix previous patch.

2
gcc/cse.c

@ -7119,7 +7119,7 @@ cse_main (f, nregs, after_loop, file)
#if ARG_POINTER_REGNUM != FRAME_POINTER_REGNUM
&& ! (i == ARG_POINTER_REGNUM && fixed_regs[i])
#endif
#if defined (PIC_OFFSET_TABLE_REGNUM) && !defined (PIC_OFFSET_TABLE_REG_CALL_CLOBBERED)
#if !defined (PIC_OFFSET_TABLE_REG_CALL_CLOBBERED)
&& ! (i == PIC_OFFSET_TABLE_REGNUM && flag_pic)
#endif
)

4
gcc/defaults.h

@ -296,6 +296,10 @@ do { \
#define BUILD_VA_LIST_TYPE(X) ((X) = ptr_type_node)
#endif
#ifndef PIC_OFFSET_TABLE_REGNUM
#define PIC_OFFSET_TABLE_REGNUM INVALID_REGNUM
#endif
/* By default, the preprocessor should be invoked the same way in C++
as in C. */
#ifndef CPLUSPLUS_CPP_SPEC

5
gcc/emit-rtl.c

@ -4197,9 +4197,8 @@ init_emit_once (line_numbers)
#endif
#endif
#ifdef PIC_OFFSET_TABLE_REGNUM
pic_offset_table_rtx = gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM);
#endif
if (PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM)
pic_offset_table_rtx = gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM);
ggc_add_rtx_root (&pic_offset_table_rtx, 1);
ggc_add_rtx_root (&struct_value_rtx, 1);

10
gcc/flow.c

@ -3345,14 +3345,13 @@ mark_regs_live_at_end (set)
#endif
}
#ifdef PIC_OFFSET_TABLE_REGNUM
#ifndef PIC_OFFSET_TABLE_REG_CALL_CLOBBERED
/* Many architectures have a GP register even without flag_pic.
Assume the pic register is not in use, or will be handled by
other means, if it is not fixed. */
if (fixed_regs[PIC_OFFSET_TABLE_REGNUM])
if (PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM
&& fixed_regs[PIC_OFFSET_TABLE_REGNUM])
SET_REGNO_REG_SET (set, PIC_OFFSET_TABLE_REGNUM);
#endif
#endif
/* Mark all global registers, and all registers used by the epilogue
@ -3484,12 +3483,11 @@ calculate_global_regs_live (blocks_in, blocks_out, flags)
SET_REGNO_REG_SET (new_live_at_end, ARG_POINTER_REGNUM);
#endif
#ifdef PIC_OFFSET_TABLE_REGNUM
/* Any constant, or pseudo with constant equivalences, may
require reloading from memory using the pic register. */
if (fixed_regs[PIC_OFFSET_TABLE_REGNUM])
if (PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM
&& fixed_regs[PIC_OFFSET_TABLE_REGNUM])
SET_REGNO_REG_SET (new_live_at_end, PIC_OFFSET_TABLE_REGNUM);
#endif
}
/* Regs used in phi nodes are not included in

4
gcc/gcse.c

@ -2208,7 +2208,7 @@ compute_hash_table (set_p)
#if ARG_POINTER_REGNUM != FRAME_POINTER_REGNUM
&& ! (regno == ARG_POINTER_REGNUM && fixed_regs[regno])
#endif
#if defined (PIC_OFFSET_TABLE_REGNUM) && !defined (PIC_OFFSET_TABLE_REG_CALL_CLOBBERED)
#if !defined (PIC_OFFSET_TABLE_REG_CALL_CLOBBERED)
&& ! (regno == PIC_OFFSET_TABLE_REGNUM && flag_pic)
#endif
@ -2641,7 +2641,7 @@ compute_kill_rd ()
&& ! (regno == ARG_POINTER_REGNUM
&& fixed_regs[regno])
#endif
#if defined (PIC_OFFSET_TABLE_REGNUM) && !defined (PIC_OFFSET_TABLE_REG_CALL_CLOBBERED)
#if !defined (PIC_OFFSET_TABLE_REG_CALL_CLOBBERED)
&& ! (regno == PIC_OFFSET_TABLE_REGNUM && flag_pic)
#endif
&& regno != FRAME_POINTER_REGNUM)

2
gcc/resource.c

@ -1029,7 +1029,7 @@ mark_target_live_regs (insns, target, res)
#if ARG_POINTER_REGNUM != FRAME_POINTER_REGNUM
&& ! (i == ARG_POINTER_REGNUM && fixed_regs[i])
#endif
#if defined (PIC_OFFSET_TABLE_REGNUM) && !defined (PIC_OFFSET_TABLE_REG_CALL_CLOBBERED)
#if !defined (PIC_OFFSET_TABLE_REG_CALL_CLOBBERED)
&& ! (i == PIC_OFFSET_TABLE_REGNUM && flag_pic)
#endif
)

3
gcc/rtl.h

@ -1606,6 +1606,9 @@ extern rtx gen_rtx_MEM PARAMS ((enum machine_mode, rtx));
#define LAST_VIRTUAL_REGISTER ((FIRST_VIRTUAL_REGISTER) + 4)
/* REGNUM never really appearing in the INSN stream. */
#define INVALID_REGNUM (~(unsigned int)0)
extern rtx find_next_ref PARAMS ((rtx, rtx));
extern rtx *find_single_use PARAMS ((rtx, rtx, rtx *));