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| author | Zhouyi Zhou <yizhouzhou@ict.ac.cn> | 2013-08-20 06:25:10 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2013-08-20 00:25:10 -0600 |
| commit | d71ff3faa157470cb3425c7009ccddc335919ab3 (patch) | |
| tree | 0b39e1aa3dc0b1f1cd32d8d2529a42ca517dc25b | |
| parent | a98cbc3694b03f28ebd51581c6d1cd5c13c52e10 (diff) | |
| download | gcc-d71ff3faa157470cb3425c7009ccddc335919ab3.zip gcc-d71ff3faa157470cb3425c7009ccddc335919ab3.tar.gz gcc-d71ff3faa157470cb3425c7009ccddc335919ab3.tar.bz2 | |
tree-ssa-ccp.c (get_default_value): Remove redundant condition checks.
* tree-ssa-ccp.c (get_default_value): Remove redundant condition
checks.
From-SVN: r201870
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 23 |
2 files changed, 19 insertions, 9 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1c95d9a..56e6fd4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -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 diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index 6472f48..78687f7 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -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 { |