re PR middle-end/20297 (#pragma GCC visibility isn't properly handled for builtin functions)
PR middle-end/20297 * expr.c (init_block_move_fn): Force default visibility. (init_block_clear_fn): Likewise. * builtins.c (expand_builtin_fork_or_exec): Likewise. * targhooks.c (default_external_stack_protect_fail): Likewise. From-SVN: r112270
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@ -1,3 +1,11 @@
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2006-03-21 Jason Merrill <jason@redhat.com>
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PR middle-end/20297
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* expr.c (init_block_move_fn): Force default visibility.
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(init_block_clear_fn): Likewise.
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* builtins.c (expand_builtin_fork_or_exec): Likewise.
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* targhooks.c (default_external_stack_protect_fail): Likewise.
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2006-03-21 Richard Sandiford <richard@codesourcery.com>
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* config/mips/predicates.md (const_call_insn_operand): Allow direct
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@ -5381,6 +5381,8 @@ expand_builtin_fork_or_exec (tree fn, tree arglist, rtx target, int ignore)
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TREE_PUBLIC (decl) = 1;
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DECL_ARTIFICIAL (decl) = 1;
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TREE_NOTHROW (decl) = 1;
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DECL_VISIBILITY (fn) = VISIBILITY_DEFAULT;
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DECL_VISIBILITY_SPECIFIED (fn) = 1;
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call = build_function_call_expr (decl, arglist);
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return expand_call (call, target, ignore);
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@ -1409,6 +1409,8 @@ init_block_move_fn (const char *asmspec)
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TREE_PUBLIC (fn) = 1;
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DECL_ARTIFICIAL (fn) = 1;
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TREE_NOTHROW (fn) = 1;
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DECL_VISIBILITY (fn) = VISIBILITY_DEFAULT;
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DECL_VISIBILITY_SPECIFIED (fn) = 1;
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block_move_fn = fn;
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}
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@ -2556,6 +2558,8 @@ init_block_clear_fn (const char *asmspec)
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TREE_PUBLIC (fn) = 1;
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DECL_ARTIFICIAL (fn) = 1;
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TREE_NOTHROW (fn) = 1;
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DECL_VISIBILITY (fn) = VISIBILITY_DEFAULT;
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DECL_VISIBILITY_SPECIFIED (fn) = 1;
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block_clear_fn = fn;
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}
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@ -398,6 +398,8 @@ default_external_stack_protect_fail (void)
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TREE_NOTHROW (t) = 1;
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DECL_ARTIFICIAL (t) = 1;
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DECL_IGNORED_P (t) = 1;
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DECL_VISIBILITY (t) = VISIBILITY_DEFAULT;
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DECL_VISIBILITY_SPECIFIED (t) = 1;
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stack_chk_fail_decl = t;
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}
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@ -0,0 +1,24 @@
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/* PR middle-end/20297 */
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/* The memcpy FUNCTION_DECL built in the middle-end for block moves got
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hidden visibility from the first push, so the call didn't use the PLT. */
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/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
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/* { dg-require-visibility "" } */
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/* { dg-options "-Os -fpic" } */
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/* { dg-final { scan-assembler "memcpy@PLT" } } */
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#pragma GCC visibility push(hidden)
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#pragma GCC visibility push(default)
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extern void* memcpy (void *, const void *, __SIZE_TYPE__);
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#pragma GCC visibility pop
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struct a { int a[10]; };
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extern void *bar (struct a *, struct a *, int);
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void *
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foo (struct a *a, struct a *b, int c)
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{
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struct a cc = *b;
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return bar (a, &cc, 4 * c);
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}
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