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Diffstat (limited to 'gcc/tree-ssa-structalias.c')
| -rw-r--r-- | gcc/tree-ssa-structalias.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c index a9032a3..b5e0830 100644 --- a/gcc/tree-ssa-structalias.c +++ b/gcc/tree-ssa-structalias.c @@ -3182,7 +3182,8 @@ handle_ptr_arith (VEC (ce_s, heap) *lhsc, tree expr) VEC (ce_s, heap) *temp = NULL; unsigned int rhsoffset = 0; - if (TREE_CODE (expr) != PLUS_EXPR) + if (TREE_CODE (expr) != PLUS_EXPR + && TREE_CODE (expr) != MINUS_EXPR) return false; op0 = TREE_OPERAND (expr, 0); @@ -3190,7 +3191,8 @@ handle_ptr_arith (VEC (ce_s, heap) *lhsc, tree expr) get_constraint_for (op0, &temp); if (POINTER_TYPE_P (TREE_TYPE (op0)) - && TREE_CODE (op1) == INTEGER_CST) + && TREE_CODE (op1) == INTEGER_CST + && TREE_CODE (expr) == PLUS_EXPR) { rhsoffset = TREE_INT_CST_LOW (op1) * BITS_PER_UNIT; } |