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alpha.c (alpha_sa_mask): Mark RA for unicos here too. 

* config/alpha/alpha.c (alpha_sa_mask): Mark RA for unicos here too.
        (alpha_sa_size): Use alpha_sa_mask to compute size of saved regs.

From-SVN: r49256
This commit is contained in:
Richard Henderson 2002-01-26 16:38:07 -08:00 committed by Richard Henderson
parent 1d788fb684
commit 61334ebeff
2 changed files with 37 additions and 47 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2002-01-26 Richard Henderson <rth@redhat.com>
* config/alpha/alpha.c (alpha_sa_mask): Mark RA for unicos here too.
(alpha_sa_size): Use alpha_sa_mask to compute size of saved regs.
2002-01-26 Kazu Hirata <kazu@hxi.com>
* config/h8300/h8300.md: Remove bit extraction patterns that

79
gcc/config/alpha/alpha.c
View File

@ -5890,14 +5890,11 @@ alpha_sa_mask (imaskP, fmaskP)
}
}
if (!TARGET_ABI_UNICOSMK)
{
/* If any register spilled, then spill the return address also. */
/* ??? This is required by the Digital stack unwind specification
and isn't needed if we're doing Dwarf2 unwinding. */
if (imask || fmask || alpha_ra_ever_killed ())
imask |= (1L << REG_RA);
}
/* If any register spilled, then spill the return address also. */
/* ??? This is required by the Digital stack unwind specification
and isn't needed if we're doing Dwarf2 unwinding. */
if (imask || fmask || alpha_ra_ever_killed ())
imask |= (1L << REG_RA);
}
*imaskP = imask;
@ -5907,34 +5904,23 @@ alpha_sa_mask (imaskP, fmaskP)
int
alpha_sa_size ()
{
unsigned long mask[2];
int sa_size = 0;
int i;
int i, j;
#ifdef ASM_OUTPUT_MI_THUNK
if (current_function_is_thunk)
sa_size = 0;
else
#endif
alpha_sa_mask (&mask[0], &mask[1]);
if (TARGET_ABI_UNICOSMK)
{
if (TARGET_ABI_UNICOSMK)
{
for (i = 9; i < 15 && sa_size == 0; i++)
if (! fixed_regs[i] && ! call_used_regs[i]
&& regs_ever_live[i])
sa_size = 14;
for (i = 32 + 2; i < 32 + 10 && sa_size == 0; i++)
if (! fixed_regs[i] && ! call_used_regs[i]
&& regs_ever_live[i])
sa_size = 14;
}
else
{
/* One for every register we have to save. */
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (! fixed_regs[i] && ! call_used_regs[i]
&& regs_ever_live[i] && i != REG_RA)
sa_size++;
}
if (mask[0] || mask[1])
sa_size = 14;
}
else
{
for (j = 0; j < 2; ++j)
for (i = 0; i < 32; ++i)
if ((mask[j] >> i) & 1)
sa_size++;
}
if (TARGET_ABI_UNICOSMK)
@ -5945,14 +5931,13 @@ alpha_sa_size ()
use alloca and have not determined that we need a frame for other
reasons. */
alpha_is_stack_procedure = sa_size != 0
|| alpha_ra_ever_killed ()
|| get_frame_size() != 0
|| current_function_outgoing_args_size
|| current_function_varargs
|| current_function_stdarg
|| current_function_calls_alloca
|| frame_pointer_needed;
alpha_is_stack_procedure = (sa_size
|| get_frame_size() != 0
|| current_function_outgoing_args_size
|| current_function_varargs
|| current_function_stdarg
|| current_function_calls_alloca
|| frame_pointer_needed);
/* Always reserve space for saving callee-saved registers if we
need a frame as required by the calling convention. */
@ -5964,7 +5949,12 @@ alpha_sa_size ()
/* Start by assuming we can use a register procedure if we don't
make any calls (REG_RA not used) or need to save any
registers and a stack procedure if we do. */
alpha_is_stack_procedure = sa_size != 0 || alpha_ra_ever_killed ();
alpha_is_stack_procedure = ((mask[0] >> REG_RA) & 1);
/* Don't reserve space for saving RA yet. Do that later after we've
made the final decision on stack procedure vs register procedure. */
if (alpha_is_stack_procedure)
sa_size--;
/* Decide whether to refer to objects off our PV via FP or PV.
If we need FP for something else or if we receive a nonlocal
@ -5998,11 +5988,6 @@ alpha_sa_size ()
}
else
{
/* If some registers were saved but not RA, RA must also be saved,
so leave space for it. */
if (!TARGET_ABI_UNICOSMK && (sa_size != 0 || alpha_ra_ever_killed ()))
sa_size++;
/* Our size must be even (multiple of 16 bytes). */
if (sa_size & 1)
sa_size++;