diff options
Diffstat (limited to 'gnu/usr.bin')
| -rw-r--r-- | gnu/usr.bin/gcc/expmed.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gnu/usr.bin/gcc/expmed.c b/gnu/usr.bin/gcc/expmed.c index 8006e8be954..83c77e6f131 100644 --- a/gnu/usr.bin/gcc/expmed.c +++ b/gnu/usr.bin/gcc/expmed.c @@ -188,6 +188,9 @@ negate_rtx (mode, x) if (GET_CODE (x) == CONST_INT) { HOST_WIDE_INT val = - INTVAL (x); + if (GET_MODE_BITSIZE (mode) > HOST_BITS_PER_WIDE_INT + && INTVAL (x) < 0 && val < 0) + return expand_unop (mode, neg_optab, x, NULL_RTX, 0); if (GET_MODE_BITSIZE (mode) < HOST_BITS_PER_WIDE_INT) { /* Sign extend the value from the bits that are significant. */ |