OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

explow.c (allocate_dynamic_stack_space): Remove call to gen_probe. 

2003-05-23  Larin Hennessy <larin@science.oregonstate.edu>
	    Zack Weinberg <zack@codesourcery.com>

	* explow.c (allocate_dynamic_stack_space): Remove call to gen_probe.
	* config/m68k/m68k.c (m68k_output_function_prologue):
	Remove code under #if NEED_PROBE.
	* config/m68k/m68k.h: Don't define NEED_PROBE.
	* config/m68k/m68k.md: Remove "probe" insn.
	* doc/md.texi: Remove documentation of "probe" pattern.

Co-Authored-By: Zack Weinberg <zack@codesourcery.com>

From-SVN: r67125
This commit is contained in:
Larin Hennessy 2003-05-23 18:19:21 +00:00 committed by Zack Weinberg
parent 24bcc7214c
commit a27b2b71a8
6 changed files with 10 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2003-05-23 Larin Hennessy <larin@science.oregonstate.edu>
Zack Weinberg <zack@codesourcery.com>
* explow.c (allocate_dynamic_stack_space): Remove call to gen_probe.
* config/m68k/m68k.c (m68k_output_function_prologue):
Remove code under #if NEED_PROBE.
* config/m68k/m68k.h: Don't define NEED_PROBE.
* config/m68k/m68k.md: Remove "probe" insn.
* doc/md.texi: Remove documentation of "probe" pattern.
2003-05-23 Dorit Naishlos <gcchaifa@il.ibm.com>
* config/rs6000/rs6000.md (save_fpregs_{si,di}): Add branch attribute.

8
gcc/config/m68k/m68k.c
View File

@ -519,14 +519,6 @@ m68k_output_function_prologue (stream, size)
num_saved_regs++;
}
#if NEED_PROBE
#ifdef MOTOROLA
asm_fprintf (stream, "\ttst.l %d(%Rsp)\n", NEED_PROBE - num_saved_regs * 4);
#else
asm_fprintf (stream, "\ttstl %Rsp@(%d)\n", NEED_PROBE - num_saved_regs * 4);
#endif
#endif
/* If the stack limit is not a symbol, check it here.
This has the disadvantage that it may be too late... */
if (current_function_limit_stack)

5
gcc/config/m68k/m68k.h
View File

@ -671,11 +671,6 @@ enum reg_class {
makes the stack pointer a smaller address. */
#define STACK_GROWS_DOWNWARD
/* Nonzero if we need to generate stack-probe insns.
On most systems they are not needed.
When they are needed, define this as the stack offset to probe at. */
#define NEED_PROBE 0
/* Define this if the nominal address of the stack frame
is at the high-address end of the local variables;
that is, each additional local variable allocated

9
gcc/config/m68k/m68k.md
View File

@ -7000,15 +7000,6 @@
""
"nop")
(define_insn "probe"
[(reg:SI 15)]
"NEED_PROBE"
"*
{
operands[0] = plus_constant (stack_pointer_rtx, NEED_PROBE);
return \"tstl %a0\";
}")
;; Used for frameless functions which save no regs and allocate no locals.
(define_insn "return"
[(return)]

12
gcc/doc/md.texi
View File

@ -3270,18 +3270,6 @@ Some machines require other operations such as stack probes or
maintaining the back chain. Define this pattern to emit those
operations in addition to updating the stack pointer.
@cindex @code{probe} instruction pattern
@item @samp{probe}
Some machines require instructions to be executed after space is
allocated from the stack, for example to generate a reference at
the bottom of the stack.
If you need to emit instructions before the stack has been adjusted,
put them into the @samp{allocate_stack} pattern. Otherwise, define
this pattern to emit the required instructions.
No operands are provided.
@cindex @code{check_stack} instruction pattern
@item @samp{check_stack}
If stack checking cannot be done on your system by probing the stack with

7
gcc/explow.c
View File

@ -1448,13 +1448,6 @@ allocate_dynamic_stack_space (size, target, known_align)
NULL_RTX, 1);
}
/* Some systems require a particular insn to refer to the stack
to make the pages exist. */
#ifdef HAVE_probe
if (HAVE_probe)
emit_insn (gen_probe ());
#endif
/* Record the new stack level for nonlocal gotos. */
if (nonlocal_goto_handler_slots != 0)
emit_stack_save (SAVE_NONLOCAL, &nonlocal_goto_stack_level, NULL_RTX);