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| author | Alan Modra <amodra@gmail.com> | 2015-05-20 10:45:59 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gcc.gnu.org> | 2015-05-20 10:45:59 +0930 |
| commit | 8b07bbe71b2d28300773acb75bafd45a1ee6233f (patch) | |
| tree | 941e3c3cc1cb1a506b8948729271c53b5d081387 /gcc | |
| parent | ca5db45b8acffae092a10a716ba887047a211503 (diff) | |
| download | gcc-8b07bbe71b2d28300773acb75bafd45a1ee6233f.zip gcc-8b07bbe71b2d28300773acb75bafd45a1ee6233f.tar.gz gcc-8b07bbe71b2d28300773acb75bafd45a1ee6233f.tar.bz2 | |
rs6000.c (rs6000_stack_info): Don't zero offsets when not saving registers.
* config/rs6000/rs6000.c (rs6000_stack_info): Don't zero offsets
when not saving registers.
(debug_stack_info): Adjust to omit printing unused offsets,
as before.
(rs6000_emit_epilogue): Adjust use_backchain_to_restore_sp
expression.
From-SVN: r223424
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 43 |
2 files changed, 19 insertions, 33 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4131b90..5fa48fa 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2015-05-20 Alan Modra <amodra@gmail.com> + + * config/rs6000/rs6000.c (rs6000_stack_info): Don't zero offsets + when not saving registers. + (debug_stack_info): Adjust to omit printing unused offsets, + as before. + (rs6000_emit_epilogue): Adjust use_backchain_to_restore_sp + expression. + 2015-05-19 Trevor Saunders <tbsaunde+gcc@tbsaunde.org> PR c++/65835 diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 66f78a1..488799e 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -22013,31 +22013,6 @@ rs6000_stack_info (void) else info_ptr->push_p = non_fixed_size > (TARGET_32BIT ? 220 : 288); - /* Zero offsets if we're not saving those registers. */ - if (info_ptr->fp_size == 0) - info_ptr->fp_save_offset = 0; - - if (info_ptr->gp_size == 0) - info_ptr->gp_save_offset = 0; - - if (! TARGET_ALTIVEC_ABI || info_ptr->altivec_size == 0) - info_ptr->altivec_save_offset = 0; - - /* Zero VRSAVE offset if not saved and restored. */ - if (! TARGET_ALTIVEC_VRSAVE || info_ptr->vrsave_mask == 0) - info_ptr->vrsave_save_offset = 0; - - if (! TARGET_SPE_ABI - || info_ptr->spe_64bit_regs_used == 0 - || info_ptr->spe_gp_size == 0) - info_ptr->spe_gp_save_offset = 0; - - if (! info_ptr->lr_save_p) - info_ptr->lr_save_offset = 0; - - if (! info_ptr->cr_save_p) - info_ptr->cr_save_offset = 0; - return info_ptr; } @@ -22143,28 +22118,28 @@ debug_stack_info (rs6000_stack_t *info) if (info->calls_p) fprintf (stderr, "\tcalls_p = %5d\n", info->calls_p); - if (info->gp_save_offset) + if (info->gp_size) fprintf (stderr, "\tgp_save_offset = %5d\n", info->gp_save_offset); - if (info->fp_save_offset) + if (info->fp_size) fprintf (stderr, "\tfp_save_offset = %5d\n", info->fp_save_offset); - if (info->altivec_save_offset) + if (info->altivec_size) fprintf (stderr, "\taltivec_save_offset = %5d\n", info->altivec_save_offset); - if (info->spe_gp_save_offset) + if (info->spe_gp_size == 0) fprintf (stderr, "\tspe_gp_save_offset = %5d\n", info->spe_gp_save_offset); - if (info->vrsave_save_offset) + if (info->vrsave_size) fprintf (stderr, "\tvrsave_save_offset = %5d\n", info->vrsave_save_offset); - if (info->lr_save_offset) + if (info->lr_save_p) fprintf (stderr, "\tlr_save_offset = %5d\n", info->lr_save_offset); - if (info->cr_save_offset) + if (info->cr_save_p) fprintf (stderr, "\tcr_save_offset = %5d\n", info->cr_save_offset); if (info->varargs_save_offset) @@ -24735,7 +24710,9 @@ rs6000_emit_epilogue (int sibcall) here will not trigger at the moment; We don't actually need a frame pointer for alloca, but the generic parts of the compiler give us one anyway. */ - use_backchain_to_restore_sp = (info->total_size > 32767 - info->lr_save_offset + use_backchain_to_restore_sp = (info->total_size + (info->lr_save_p + ? info->lr_save_offset + : 0) > 32767 || (cfun->calls_alloca && !frame_pointer_needed)); restore_lr = (info->lr_save_p |