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Add a helper function: create_tmp_reg_or_ssa_name

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* gimple-fold.c (create_tmp_reg_or_ssa_name): New function.
	(gimple_fold_builtin_memory_op): Use the function.
	(gimple_fold_builtin_strchr): Likewise.
	(gimple_fold_builtin_strcat): Likewise.
	(gimple_build): Likewise.

From-SVN: r241030
This commit is contained in:
Martin Liska 2016-10-12 12:50:40 +02:00 committed by Martin Liska
parent 5b4c102959
commit a15ebbcde0
2 changed files with 34 additions and 41 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2016-10-12 Martin Liska <mliska@suse.cz>
* gimple-fold.c (create_tmp_reg_or_ssa_name): New function.
(gimple_fold_builtin_memory_op): Use the function.
(gimple_fold_builtin_strchr): Likewise.
(gimple_fold_builtin_strcat): Likewise.
(gimple_build): Likewise.
2016-10-12 Nathan Sidwell <nathan@acm.org>
* diagnostic.c (diagnostc_report_diagnostic): Fix formatting.

67
gcc/gimple-fold.c
View File

@ -171,6 +171,19 @@ can_refer_decl_in_current_unit_p (tree decl, tree from_decl)
return !node || !node->global.inlined_to;
}
/* Create a temporary for TYPE for a statement STMT. If the current function
is in SSA form, a SSA name is created. Otherwise a temporary register
is made. */
static tree
create_tmp_reg_or_ssa_name (tree type, gimple *stmt = NULL)
{
if (gimple_in_ssa_p (cfun))
return make_ssa_name (type, stmt);
else
return create_tmp_reg (type);
}
/* CVAL is value taken from DECL_INITIAL of variable. Try to transform it into
acceptable form for is_gimple_min_invariant.
FROM_DECL (if non-NULL) specify variable whose constructor contains CVAL. */
@ -747,11 +760,9 @@ gimple_fold_builtin_memory_op (gimple_stmt_iterator *gsi,
if (is_gimple_reg_type (TREE_TYPE (srcmem)))
{
new_stmt = gimple_build_assign (NULL_TREE, srcmem);
if (gimple_in_ssa_p (cfun))
srcmem = make_ssa_name (TREE_TYPE (srcmem),
new_stmt);
else
srcmem = create_tmp_reg (TREE_TYPE (srcmem));
srcmem
= create_tmp_reg_or_ssa_name (TREE_TYPE (srcmem),
new_stmt);
gimple_assign_set_lhs (new_stmt, srcmem);
gimple_set_vuse (new_stmt, gimple_vuse (stmt));
gsi_insert_before (gsi, new_stmt, GSI_SAME_STMT);
@ -1038,10 +1049,8 @@ gimple_fold_builtin_memory_op (gimple_stmt_iterator *gsi,
if (! is_gimple_min_invariant (srcvar))
{
new_stmt = gimple_build_assign (NULL_TREE, srcvar);
if (gimple_in_ssa_p (cfun))
srcvar = make_ssa_name (TREE_TYPE (srcvar), new_stmt);
else
srcvar = create_tmp_reg (TREE_TYPE (srcvar));
srcvar = create_tmp_reg_or_ssa_name (TREE_TYPE (srcvar),
new_stmt);
gimple_assign_set_lhs (new_stmt, srcvar);
gimple_set_vuse (new_stmt, gimple_vuse (stmt));
gsi_insert_before (gsi, new_stmt, GSI_SAME_STMT);
@ -1535,10 +1544,7 @@ gimple_fold_builtin_strchr (gimple_stmt_iterator *gsi, bool is_strrchr)
gimple_seq stmts = NULL;
gimple *new_stmt = gimple_build_call (strlen_fn, 1, str);
gimple_set_location (new_stmt, loc);
if (gimple_in_ssa_p (cfun))
len = make_ssa_name (size_type_node);
else
len = create_tmp_reg (size_type_node);
len = create_tmp_reg_or_ssa_name (size_type_node);
gimple_call_set_lhs (new_stmt, len);
gimple_seq_add_stmt_without_update (&stmts, new_stmt);
@ -1611,10 +1617,7 @@ gimple_fold_builtin_strcat (gimple_stmt_iterator *gsi, tree dst, tree src)
gimple_seq stmts = NULL, stmts2;
gimple *repl = gimple_build_call (strlen_fn, 1, dst);
gimple_set_location (repl, loc);
if (gimple_in_ssa_p (cfun))
newdst = make_ssa_name (size_type_node);
else
newdst = create_tmp_reg (size_type_node);
newdst = create_tmp_reg_or_ssa_name (size_type_node);
gimple_call_set_lhs (repl, newdst);
gimple_seq_add_stmt_without_update (&stmts, repl);
@ -6376,10 +6379,7 @@ gimple_build (gimple_seq *seq, location_t loc,
tree res = gimple_simplify (code, type, op0, seq, gimple_build_valueize);
if (!res)
{
if (gimple_in_ssa_p (cfun))
res = make_ssa_name (type);
else
res = create_tmp_reg (type);
res = create_tmp_reg_or_ssa_name (type);
gimple *stmt;
if (code == REALPART_EXPR
|| code == IMAGPART_EXPR
@ -6405,10 +6405,7 @@ gimple_build (gimple_seq *seq, location_t loc,
tree res = gimple_simplify (code, type, op0, op1, seq, gimple_build_valueize);
if (!res)
{
if (gimple_in_ssa_p (cfun))
res = make_ssa_name (type);
else
res = create_tmp_reg (type);
res = create_tmp_reg_or_ssa_name (type);
gimple *stmt = gimple_build_assign (res, code, op0, op1);
gimple_set_location (stmt, loc);
gimple_seq_add_stmt_without_update (seq, stmt);
@ -6429,10 +6426,7 @@ gimple_build (gimple_seq *seq, location_t loc,
seq, gimple_build_valueize);
if (!res)
{
if (gimple_in_ssa_p (cfun))
res = make_ssa_name (type);
else
res = create_tmp_reg (type);
res = create_tmp_reg_or_ssa_name (type);
gimple *stmt;
if (code == BIT_FIELD_REF)
stmt = gimple_build_assign (res, code,
@ -6462,10 +6456,7 @@ gimple_build (gimple_seq *seq, location_t loc,
gimple *stmt = gimple_build_call (decl, 1, arg0);
if (!VOID_TYPE_P (type))
{
if (gimple_in_ssa_p (cfun))
res = make_ssa_name (type);
else
res = create_tmp_reg (type);
res = create_tmp_reg_or_ssa_name (type);
gimple_call_set_lhs (stmt, res);
}
gimple_set_location (stmt, loc);
@ -6491,10 +6482,7 @@ gimple_build (gimple_seq *seq, location_t loc,
gimple *stmt = gimple_build_call (decl, 2, arg0, arg1);
if (!VOID_TYPE_P (type))
{
if (gimple_in_ssa_p (cfun))
res = make_ssa_name (type);
else
res = create_tmp_reg (type);
res = create_tmp_reg_or_ssa_name (type);
gimple_call_set_lhs (stmt, res);
}
gimple_set_location (stmt, loc);
@ -6522,10 +6510,7 @@ gimple_build (gimple_seq *seq, location_t loc,
gimple *stmt = gimple_build_call (decl, 3, arg0, arg1, arg2);
if (!VOID_TYPE_P (type))
{
if (gimple_in_ssa_p (cfun))
res = make_ssa_name (type);
else
res = create_tmp_reg (type);
res = create_tmp_reg_or_ssa_name (type);
gimple_call_set_lhs (stmt, res);
}
gimple_set_location (stmt, loc);