diff options
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index 5eea2ab..aa24fbf 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -3139,8 +3139,10 @@ expand_mult (enum machine_mode mode, rtx op0, rtx op1, rtx target, { int shift = floor_log2 (CONST_DOUBLE_HIGH (op1)) + HOST_BITS_PER_WIDE_INT; - return expand_shift (LSHIFT_EXPR, mode, op0, - shift, target, unsignedp); + if (shift < 2 * HOST_BITS_PER_WIDE_INT - 1 + || GET_MODE_BITSIZE (mode) <= 2 * HOST_BITS_PER_WIDE_INT) + return expand_shift (LSHIFT_EXPR, mode, op0, + shift, target, unsignedp); } } |