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(allocate_dynamic_stack_space): If STACK_DYNAMIC_OFFSET or STACK_POINTER_OFFSET...

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(allocate_dynamic_stack_space): If STACK_DYNAMIC_OFFSET
or STACK_POINTER_OFFSET, always round address up to BIGGEST_ALIGNMENT.

From-SVN: r2292
This commit is contained in:
Richard Stallman 1992-10-01 07:55:51 +00:00
parent 09dafdadf0
commit 1d9d04f8ce
1 changed files with 9 additions and 0 deletions
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9
gcc/explow.c
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@ -865,7 +865,11 @@ allocate_dynamic_stack_space (size, target, known_align)
#ifdef MUST_ALIGN
#if !defined (STACK_DYNAMIC_OFFSET) && !defined (STACK_POINTER_OFFSET)
/* If we have to round the address up regardless of known_align,
make extra space regardless, also. */
if (known_align % BIGGEST_ALIGNMENT != 0)
#endif
{
if (GET_CODE (size) == CONST_INT)
size = GEN_INT (INTVAL (size)
@ -875,6 +879,7 @@ allocate_dynamic_stack_space (size, target, known_align)
GEN_INT (BIGGEST_ALIGNMENT / BITS_PER_UNIT - 1),
NULL_RTX, 1, OPTAB_LIB_WIDEN);
}
#endif
#ifdef SETJMP_VIA_SAVE_AREA
@ -952,7 +957,11 @@ allocate_dynamic_stack_space (size, target, known_align)
#endif
#ifdef MUST_ALIGN
/* If virtual_stack_dynamic_rtx might not share the alignment of
the stack pointer register, we must always realign the stack address. */
#if !defined (STACK_DYNAMIC_OFFSET) && !defined (STACK_POINTER_OFFSET)
if (known_align % BIGGEST_ALIGNMENT != 0)
#endif
{
target = expand_divmod (0, CEIL_DIV_EXPR, Pmode, target,
GEN_INT (BIGGEST_ALIGNMENT / BITS_PER_UNIT),