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tree.h (CASE_CHAIN): Define.

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* tree.h (CASE_CHAIN): Define.
	* tree-cfg.c (edge_to_cases_cleanup, get_cases_for_edge): Use it.
	(gimple_redirect_edge_and_branch): Likewise.

From-SVN: r171769
This commit is contained in:
Nathan Froyd 2011-03-31 02:26:18 +00:00 committed by Nathan Froyd
parent bddc98e135
commit 1290e54cfe
3 changed files with 13 additions and 6 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2011-03-30 Nathan Froyd <froydnj@codesourcery.com>
* tree.h (CASE_CHAIN): Define.
* tree-cfg.c (edge_to_cases_cleanup, get_cases_for_edge): Use it.
(gimple_redirect_edge_and_branch): Likewise.
2011-03-30 Vladimir Makarov <vmakarov@redhat.com>
PR middle-end/48367

12
gcc/tree-cfg.c
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@ -838,8 +838,8 @@ edge_to_cases_cleanup (const void *key ATTRIBUTE_UNUSED, void **value,
for (t = (tree) *value; t; t = next)
{
next = TREE_CHAIN (t);
TREE_CHAIN (t) = NULL;
next = CASE_CHAIN (t);
CASE_CHAIN (t) = NULL;
}
*value = NULL;
@ -922,7 +922,7 @@ get_cases_for_edge (edge e, gimple t)
/* Add it to the chain of CASE_LABEL_EXPRs referencing E, or create
a new chain. */
slot = pointer_map_insert (edge_to_cases, this_edge);
TREE_CHAIN (elt) = (tree) *slot;
CASE_CHAIN (elt) = (tree) *slot;
*slot = elt;
}
@ -4851,7 +4851,7 @@ gimple_redirect_edge_and_branch (edge e, basic_block dest)
{
last = cases;
CASE_LABEL (cases) = label;
cases = TREE_CHAIN (cases);
cases = CASE_CHAIN (cases);
}
/* If there was already an edge in the CFG, then we need
@ -4860,8 +4860,8 @@ gimple_redirect_edge_and_branch (edge e, basic_block dest)
{
tree cases2 = get_cases_for_edge (e2, stmt);
TREE_CHAIN (last) = TREE_CHAIN (cases2);
TREE_CHAIN (cases2) = first;
CASE_CHAIN (last) = CASE_CHAIN (cases2);
CASE_CHAIN (cases2) = first;
}
bitmap_set_bit (touched_switch_bbs, gimple_bb (stmt)->index);
}

1
gcc/tree.h
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@ -1636,6 +1636,7 @@ extern void protected_set_expr_location (tree, location_t);
#define CASE_LOW(NODE) TREE_OPERAND (CASE_LABEL_EXPR_CHECK (NODE), 0)
#define CASE_HIGH(NODE) TREE_OPERAND (CASE_LABEL_EXPR_CHECK (NODE), 1)
#define CASE_LABEL(NODE) TREE_OPERAND (CASE_LABEL_EXPR_CHECK (NODE), 2)
#define CASE_CHAIN(NODE) TREE_CHAIN (CASE_LABEL_EXPR_CHECK (NODE))
/* The operands of a TARGET_MEM_REF. Operands 0 and 1 have to match
corresponding MEM_REF operands. */