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emit-rtl.c (reset_used_decls): New function.

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* emit-rtl.c (reset_used_decls): New function.
(unshare_all_rtl_again): Call it.

From-SVN: r34184
This commit is contained in:
Alexandre Oliva 2000-05-26 01:49:38 +00:00 committed by Alexandre Oliva
parent 476f28692a
commit 2d4aecb33a
2 changed files with 27 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2000-05-25 Alexandre Oliva <aoliva@cygnus.com>
* emit-rtl.c (reset_used_decls): New function.
(unshare_all_rtl_again): Call it.
2000-05-25 Zack Weinberg <zack@wolery.cumb.org>
* cpplex.c (maybe_macroexpand): Warn about function-like

23
gcc/emit-rtl.c
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@ -179,6 +179,7 @@ static rtx find_line_note PARAMS ((rtx));
static void mark_sequence_stack PARAMS ((struct sequence_stack *));
static void unshare_all_rtl_1 PARAMS ((rtx));
static void unshare_all_decls PARAMS ((tree));
static void reset_used_decls PARAMS ((tree));
static hashval_t const_int_htab_hash PARAMS ((const void *));
static int const_int_htab_eq PARAMS ((const void *,
const void *));
@ -1733,6 +1734,9 @@ unshare_all_rtl_again (insn)
reset_used_flags (LOG_LINKS (p));
}
/* Make sure that virtual stack slots are not shared. */
reset_used_decls (DECL_INITIAL (cfun->decl));
/* Make sure that virtual parameters are not shared. */
for (decl = DECL_ARGUMENTS (cfun->decl); decl; decl = TREE_CHAIN (decl))
reset_used_flags (DECL_RTL (decl));
@ -1768,13 +1772,30 @@ unshare_all_decls (blk)
/* Copy shared decls. */
for (t = BLOCK_VARS (blk); t; t = TREE_CHAIN (t))
DECL_RTL (t) = copy_rtx_if_shared (DECL_RTL (t));
DECL_RTL (t) = copy_rtx_if_shared (DECL_RTL (t));
/* Now process sub-blocks. */
for (t = BLOCK_SUBBLOCKS (blk); t; t = TREE_CHAIN (t))
unshare_all_decls (t);
}
/* Go through all virtual stack slots of a function and mark them as
not shared. */
static void
reset_used_decls (blk)
tree blk;
{
tree t;
/* Mark decls. */
for (t = BLOCK_VARS (blk); t; t = TREE_CHAIN (t))
reset_used_flags (DECL_RTL (t));
/* Now process sub-blocks. */
for (t = BLOCK_SUBBLOCKS (blk); t; t = TREE_CHAIN (t))
reset_used_decls (t);
}
/* Mark ORIG as in use, and return a copy of it if it was already in use.
Recursively does the same for subexpressions. */