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tree-ssa-ccp.c (get_default_value): Remove redundant condition checks.

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* tree-ssa-ccp.c (get_default_value): Remove redundant condition
       checks.

From-SVN: r201870
This commit is contained in:
Zhouyi Zhou 2013-08-20 06:25:10 +00:00 committed by Jeff Law
parent a98cbc3694
commit d71ff3faa1
2 changed files with 19 additions and 9 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2013-08-20 Zhouyi Zhou <yizhouzhou@ict.ac.cn>
* tree-ssa-ccp.c (get_default_value): Remove redundant condition
checks.
2013-08-20 David Malcolm <dmalcolm@redhat.com>
Make opt_pass and gcc::pass_manager be GC-managed, so that pass

23
gcc/tree-ssa-ccp.c
View File

@ -258,12 +258,7 @@ get_default_value (tree var)
val.mask = double_int_minus_one;
}
}
else if (is_gimple_assign (stmt)
/* Value-returning GIMPLE_CALL statements assign to
a variable, and are treated similarly to GIMPLE_ASSIGN. */
|| (is_gimple_call (stmt)
&& gimple_call_lhs (stmt) != NULL_TREE)
|| gimple_code (stmt) == GIMPLE_PHI)
else if (is_gimple_assign (stmt))
{
tree cst;
if (gimple_assign_single_p (stmt)
@ -274,9 +269,19 @@ get_default_value (tree var)
val.value = cst;
}
else
/* Any other variable defined by an assignment or a PHI node
is considered UNDEFINED. */
val.lattice_val = UNDEFINED;
{
/* Any other variable defined by an assignment is considered
UNDEFINED. */
val.lattice_val = UNDEFINED;
}
}
else if ((is_gimple_call (stmt)
&& gimple_call_lhs (stmt) != NULL_TREE)
|| gimple_code (stmt) == GIMPLE_PHI)
{
/* A variable defined by a call or a PHI node is considered
UNDEFINED. */
val.lattice_val = UNDEFINED;
}
else
{