diff options
Diffstat (limited to 'gcc/tree-scalar-evolution.c')
| -rw-r--r-- | gcc/tree-scalar-evolution.c | 29 |
1 files changed, 9 insertions, 20 deletions
diff --git a/gcc/tree-scalar-evolution.c b/gcc/tree-scalar-evolution.c index 43a5e27ddba..9b0df6fb380 100644 --- a/gcc/tree-scalar-evolution.c +++ b/gcc/tree-scalar-evolution.c @@ -357,6 +357,8 @@ find_var_scev_info (tree var) bool chrec_contains_symbols_defined_in_loop (tree chrec, unsigned loop_nb) { + int i, n; + if (chrec == NULL_TREE) return false; @@ -386,26 +388,12 @@ chrec_contains_symbols_defined_in_loop (tree chrec, unsigned loop_nb) return false; } - switch (TREE_CODE_LENGTH (TREE_CODE (chrec))) - { - case 3: - if (chrec_contains_symbols_defined_in_loop (TREE_OPERAND (chrec, 2), - loop_nb)) - return true; - - case 2: - if (chrec_contains_symbols_defined_in_loop (TREE_OPERAND (chrec, 1), - loop_nb)) - return true; - - case 1: - if (chrec_contains_symbols_defined_in_loop (TREE_OPERAND (chrec, 0), - loop_nb)) - return true; - - default: - return false; - } + n = TREE_OPERAND_LENGTH (chrec); + for (i = 0; i < n; i++) + if (chrec_contains_symbols_defined_in_loop (TREE_OPERAND (chrec, i), + loop_nb)) + return true; + return false; } /* Return true when PHI is a loop-phi-node. */ @@ -2317,6 +2305,7 @@ instantiate_parameters_1 (struct loop *loop, tree chrec, int flags, htab_t cache break; } + gcc_assert (!VL_EXP_CLASS_P (chrec)); switch (TREE_CODE_LENGTH (TREE_CODE (chrec))) { case 3: |