diff options
Diffstat (limited to 'gcc/loop-iv.c')
| -rw-r--r-- | gcc/loop-iv.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/loop-iv.c b/gcc/loop-iv.c index 9b35b88..67d1ebd 100644 --- a/gcc/loop-iv.c +++ b/gcc/loop-iv.c @@ -1336,9 +1336,10 @@ simple_rhs_p (rtx rhs) { case PLUS: case MINUS: + case AND: op0 = XEXP (rhs, 0); op1 = XEXP (rhs, 1); - /* Allow reg + const and reg + reg. */ + /* Allow reg OP const and reg OP reg. */ if (!(REG_P (op0) && !HARD_REGISTER_P (op0)) && !CONSTANT_P (op0)) return false; @@ -1349,9 +1350,12 @@ simple_rhs_p (rtx rhs) return true; case ASHIFT: + case ASHIFTRT: + case LSHIFTRT: + case MULT: op0 = XEXP (rhs, 0); op1 = XEXP (rhs, 1); - /* Allow reg << const. */ + /* Allow reg OP const. */ if (!(REG_P (op0) && !HARD_REGISTER_P (op0))) return false; if (!CONSTANT_P (op1)) |