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| author | Eric Botcazou <ebotcazou@adacore.com> | 2011-06-02 10:48:11 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2011-06-02 10:48:11 +0000 |
| commit | bc6d3f91a344f7ba4840fd41890076c62d2a538a (patch) | |
| tree | 5f109a1d3dfcb88bc0c15d333cf680895b7292b4 /gcc/postreload-gcse.c | |
| parent | 66bd20e7b61b37c6a13cb71e20be5f69236d0bbe (diff) | |
| download | gcc-bc6d3f91a344f7ba4840fd41890076c62d2a538a.zip gcc-bc6d3f91a344f7ba4840fd41890076c62d2a538a.tar.gz gcc-bc6d3f91a344f7ba4840fd41890076c62d2a538a.tar.bz2 | |
function.h (struct stack_usage): Remove dynamic_alloc_count field.
* function.h (struct stack_usage): Remove dynamic_alloc_count field.
(current_function_dynamic_alloc_count): Delete.
* builtins.c (expand_builtin_setjmp_setup): Do not set calls_setjmp.
(expand_builtin_nonlocal_goto): Remove obsolete comment.
(expand_builtin_update_setjmp_buf): Remove dead code.
* cse.c (cse_find_path): Do not follow a single abnormal incoming edge.
* explow.c (allocate_dynamic_stack_space): Remove SETJMP_VIA_SAVE_AREA
support.
* function.c (instantiate_virtual_regs): Likewise.
* postreload-gcse.c (bb_has_well_behaved_predecessors): Return false
for a block with a single abnormal incoming edge.
* config/sparc/sparc.h (STACK_SAVEAREA_MODE): Define.
* config/sparc/sparc-protos.h (load_got_register): Declare.
* config/sparc/sparc.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Define.
(load_got_register): Make global.
(sparc_frame_pointer_required): Add 'static'.
(sparc_can_eliminate): Likewise. Call sparc_frame_pointer_required.
(sparc_builtin_setjmp_frame_value): New function.
* config/sparc/sparc.md (UNSPECV_SETJMP): Remove.
(save_stack_nonlocal): New expander.
(restore_stack_nonlocal): Likewise.
(nonlocal_goto): Remove modes, adjust predicates and reimplement.
(nonlocal_goto_internal): New insn.
(goto_handler_and_restore): Delete.
(builtin_setjmp_setup): Likewise.
(do_builtin_setjmp_setup): Likewise.
(setjmp): Likewise.
(builtin_setjmp_receiver): New expander.
From-SVN: r174564
Diffstat (limited to 'gcc/postreload-gcse.c')
| -rw-r--r-- | gcc/postreload-gcse.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/postreload-gcse.c b/gcc/postreload-gcse.c index 8e26419..0ee50d8 100644 --- a/gcc/postreload-gcse.c +++ b/gcc/postreload-gcse.c @@ -1,5 +1,5 @@ /* Post reload partially redundant load elimination - Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 + Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010, 2011 Free Software Foundation, Inc. This file is part of GCC. @@ -912,10 +912,12 @@ get_avail_load_store_reg (rtx insn) static bool bb_has_well_behaved_predecessors (basic_block bb) { + unsigned int edge_count = EDGE_COUNT (bb->preds); edge pred; edge_iterator ei; - if (EDGE_COUNT (bb->preds) == 0) + if (edge_count == 0 + || (edge_count == 1 && (single_pred_edge (bb)->flags & EDGE_ABNORMAL))) return false; FOR_EACH_EDGE (pred, ei, bb->preds) |