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pa.c (compute_frame_size): Don't assume PREFERRED_STACK_BOUNDARY is 8 * STACK_BOUNDARY.

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* pa.c (compute_frame_size): Don't assume PREFERRED_STACK_BOUNDARY
	is 8 * STACK_BOUNDARY.
	* pa.h (PREFERRED_STACK_BOUNDARY): Change to 128 on 64-bit port.

From-SVN: r63473
This commit is contained in:
John David Anglin 2003-02-26 16:29:22 +00:00 committed by John David Anglin
parent a29c7ea628
commit b0d7ef9afd
3 changed files with 13 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2003-02-26 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
* pa.c (compute_frame_size): Don't assume PREFERRED_STACK_BOUNDARY
is 8 * STACK_BOUNDARY.
* pa.h (PREFERRED_STACK_BOUNDARY): Change to 128 on 64-bit port.
2003-02-26 Michael Matz <matz@suse.de>
* ra-colorize.c (merge_moves): Fix list handling.

3
gcc/config/pa/pa.c
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@ -3247,7 +3247,8 @@ compute_frame_size (size, fregs_live)
if (!current_function_is_leaf || fsize)
fsize += TARGET_64BIT ? 16 : 32;
return (fsize + STACK_BOUNDARY - 1) & ~(STACK_BOUNDARY - 1);
return ((fsize + PREFERRED_STACK_BOUNDARY / 8 - 1)
& ~(PREFERRED_STACK_BOUNDARY / 8 - 1));
}
/* Generate the assembly code for function entry. FILE is a stdio

9
gcc/config/pa/pa.h
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@ -461,11 +461,12 @@ do { \
/* Boundary (in *bits*) on which stack pointer is always aligned;
certain optimizations in combine depend on this.
GCC for the PA always rounds its stacks to a 8 * STACK_BOUNDARY
boundary, but that happens late in the compilation process. */
The HP-UX runtime documents mandate 64-byte and 16-byte alignment for
the stack on the 32 and 64-bit ports, respectively. However, we
are only guaranteed that the stack is aligned to BIGGEST_ALIGNMENT
in main. Thus, we treat the former as the preferred alignment. */
#define STACK_BOUNDARY BIGGEST_ALIGNMENT
#define PREFERRED_STACK_BOUNDARY (8 * STACK_BOUNDARY)
#define PREFERRED_STACK_BOUNDARY (TARGET_64BIT ? 128 : 512)
/* Allocation boundary (in *bits*) for the code of a function. */
#define FUNCTION_BOUNDARY BITS_PER_WORD