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PR tree-optimization/16867
authordnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 12 Aug 2004 14:34:11 +0000 (14:34 +0000)
committerdnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 12 Aug 2004 14:34:11 +0000 (14:34 +0000)
commit2ce91ad730b32272f3e2aa86c83c2431ceaa0db6
treea0fa15664fe5d4dfd7f6bced8b73b4839f33dfcb
parent76aec42feedd95a299537c9678ea28a986c51a4f
PR tree-optimization/16867
* tree.c (is_global_var): New function.
(needs_to_live_in_memory): Check for TREE_ADDRESSABLE.
Call is_global_var.
* tree.h (DECL_NEEDS_TO_LIVE_IN_MEMORY_INTERNAL): Remove.
Update all users.
(is_global_var): Declare.
* tree-dfa.c (dump_variable): Display global and addressable
attributes.
(add_referenced_var): Clarify documentation when marking
variables call-clobbered.
* tree-flow-inline.h (is_call_clobbered): Call is_global_var
instead of needs_to_live_in_memory.
(mark_call_clobbered): If the variable is a tag, mark it
DECL_EXTERNAL.
* tree-gimple.c (is_gimple_reg): Don't check for
TREE_ADDRESSABLE.
(is_gimple_non_addressable): Likewise.
* tree-ssa-alias.c (get_nmt_for): Always check whether the tag
needs to be marked call-clobbered.
(setup_pointers_and_addressables): Call is_global_var instead
of needs_to_live_in_memory.
* tree-ssa-dce.c (need_to_preserve_store): Remove.
Update all users with is_global_var.
(mark_stmt_if_obviously_necessary): Fix processing of aliased
stores.  Don't check the virtual definitions.  Rather, check
whether the store is going into global memory.
(find_obviously_necessary_stmts): Get the symbol from the PHI
result.
* tree-ssa-operands.c (get_call_expr_operands): Do not add
clobbering may-defs if the call does not have side effects.

libjava/ChangeLog

PR tree-optimization/16867
* testsuite/libjava.lang/PR16867.java: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@85874 138bc75d-0d04-0410-961f-82ee72b054a4
12 files changed:
gcc/ChangeLog
gcc/tree-dfa.c
gcc/tree-flow-inline.h
gcc/tree-gimple.c
gcc/tree-ssa-alias.c
gcc/tree-ssa-dce.c
gcc/tree-ssa-operands.c
gcc/tree.c
gcc/tree.h
libjava/ChangeLog
libjava/testsuite/libjava.lang/PR16867.java [new file with mode: 0644]
libjava/testsuite/libjava.lang/PR16867.out [new file with mode: 0644]