diff options
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 64af27c..44ca720 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -8763,9 +8763,10 @@ simplify_shift_const (rtx x, enum rtx_code code, logical expression, make a new logical expression, and apply the inverse distributive law. This also can't be done for some (ashiftrt (xor)). */ - if (code != ASHIFTRT || GET_CODE (varop)!= XOR - || 0 <= trunc_int_for_mode (INTVAL (XEXP (varop, 1)), - shift_mode)) + if (GET_CODE (XEXP (varop, 1)) == CONST_INT + && !(code == ASHIFTRT && GET_CODE (varop) == XOR + && 0 > trunc_int_for_mode (INTVAL (XEXP (varop, 1)), + shift_mode))) { rtx lhs = simplify_shift_const (NULL_RTX, code, shift_mode, XEXP (varop, 0), count); @@ -8776,6 +8777,7 @@ simplify_shift_const (rtx x, enum rtx_code code, varop = apply_distributive_law (varop); count = 0; + continue; } break; |