diff options
Diffstat (limited to 'gcc-4.9/gcc/tree-ssa-ifcombine.c')
| -rw-r--r-- | gcc-4.9/gcc/tree-ssa-ifcombine.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc-4.9/gcc/tree-ssa-ifcombine.c b/gcc-4.9/gcc/tree-ssa-ifcombine.c index be28fb004..d02d72b9e 100644 --- a/gcc-4.9/gcc/tree-ssa-ifcombine.c +++ b/gcc-4.9/gcc/tree-ssa-ifcombine.c @@ -127,7 +127,11 @@ bb_no_side_effects_p (basic_block bb) { gimple stmt = gsi_stmt (gsi); + if (is_gimple_debug (stmt)) + continue; + if (gimple_has_side_effects (stmt) + || gimple_could_trap_p (stmt) || gimple_vuse (stmt)) return false; } @@ -229,7 +233,8 @@ recognize_single_bit_test (gimple cond, tree *name, tree *bit, bool inv) while (is_gimple_assign (stmt) && ((CONVERT_EXPR_CODE_P (gimple_assign_rhs_code (stmt)) && (TYPE_PRECISION (TREE_TYPE (gimple_assign_lhs (stmt))) - <= TYPE_PRECISION (TREE_TYPE (gimple_assign_rhs1 (stmt))))) + <= TYPE_PRECISION (TREE_TYPE (gimple_assign_rhs1 (stmt)))) + && TREE_CODE (gimple_assign_rhs1 (stmt)) == SSA_NAME) || gimple_assign_ssa_name_copy_p (stmt))) stmt = SSA_NAME_DEF_STMT (gimple_assign_rhs1 (stmt)); |