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| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-24 14:37:02 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-24 14:37:02 +0000 |
| commit | 60778e622858f194cee57d3dfa2a4e7b9915b3f4 (patch) | |
| tree | 96c049e5b6aaaf1182db5e68e2f764aacc90ede6 /gcc/calls.c | |
| parent | 1ddf4bfd4e8523849c0357f0b3fc734459a90c64 (diff) | |
| download | gcc-60778e622858f194cee57d3dfa2a4e7b9915b3f4.tar.gz | |
PR middle-end/45234
* rtl.h (enum global_rtl_index): Add
GR_VIRTUAL_PREFERRED_STACK_BOUNDARY.
(LAST_VIRTUAL_POINTER_REGISTER): Define.
(virtual_preferred_stack_boundary_rtx,
VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM): Define.
(LAST_VIRTUAL_REGISTER): Increase by one.
(REGNO_PTR_FRAME_P): Use LAST_VIRTUAL_POINTER_REGISTER
instead of LAST_VIRTUAL_REGISTER.
* function.c (instantiate_new_reg): Handle
virtual_preferred_stack_boundary_rtx.
* emit-rtl.c (init_virtual_regs): Handle
VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM.
(init_emit_regs): Initialize virtual_preferred_stack_boundary_rtx.
* explow.c (round_push): If crtl->preferred_stack_boundary
is smaller than MAX_SUPPORTED_STACK_ALIGNMENT, use
virtual_preferred_stack_boundary_rtx alignment instead of
crtl->preferred_stack_boundary alignment.
(allocate_dynamic_stack_space): Use CONST_INT_P and REG_P
macros. Never decrease crtl->preferred_stack_boundary,
use crtl->preferred_stack_boundary or MAX_SUPPORTED_STACK_ALIGNMENT
instead of PREFERRED_STACK_BOUNDARY. Don't modify
stack_pointer_delta in dynamic allocation, even when size
is constant.
(probe_stack_range, anti_adjust_stack_and_probe): Use CONST_INT_P
macro.
* print-rtl.c (print_rtx): Handle
VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM.
* config/alpha/alpha.h (NONSTRICT_REG_OK_FP_BASE_P): Use
LAST_VIRTUAL_POINTER_REGISTER instead of LAST_VIRTUAL_REGISTER.
* config/frv/frv.c (frv_emit_movsi): Likewise.
* config/arm/arm.c (thumb1_legitimate_address_p): Likewise.
* config/rs6000/rs6000.c (virtual_stack_registers_memory_p):
Likewise.
* gcc.dg/torture/stackalign/alloca-6.c: New test.
* gcc.target/i386/pr45234.c: New test.
Revert:
2010-09-17 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/45234
* calls.c (expand_call): Make sure that all variable sized
adjustments are multiple of preferred stack boundary after
stack alignment.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@164593 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index b3109cee8d2..388883137be 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -2385,19 +2385,6 @@ expand_call (tree exp, rtx target, int ignore) preferred_unit_stack_boundary = preferred_stack_boundary / BITS_PER_UNIT; - if (SUPPORTS_STACK_ALIGNMENT) - { - /* All variable sized adjustments must be multiple of preferred - stack boundary. Stack alignment may change preferred stack - boundary after variable sized adjustments have been made. We - need to compensate it here. */ - unsigned HOST_WIDE_INT delta - = ((stack_pointer_delta - pending_stack_adjust) - % preferred_unit_stack_boundary); - if (delta) - anti_adjust_stack (GEN_INT (preferred_unit_stack_boundary - delta)); - } - /* We want to make two insn chains; one for a sibling call, the other for a normal call. We will select one of the two chains after initial RTL generation is complete. */ |