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| author | peadar <peadar@FreeBSD.org> | 2004-11-27 20:59:49 +0000 |
|---|---|---|
| committer | peadar <peadar@FreeBSD.org> | 2004-11-27 20:59:49 +0000 |
| commit | a14ee64402891d9c36e916ce17b01895b7ca2794 (patch) | |
| tree | 416b354508ab66becdd056293e6ccdfa5bd72835 /lib/libc/alpha/gen | |
| parent | 574523a3a9e33d4971e5de7e23b6e7650977438c (diff) | |
| download | FreeBSD-src-a14ee64402891d9c36e916ce17b01895b7ca2794.zip FreeBSD-src-a14ee64402891d9c36e916ce17b01895b7ca2794.tar.gz | |
When required to negate the absoulte result of a division/remainder
operation (by subtracting the absolute result from 0), don't test
for overflow.
This avoids an arithmetic exception when dividing LONG_MIN by 1:
This is the only case that causes overflow, and the resulting value
is correct under 2's compliment arithmetic.
PR: 72024
Approved by: dwmalone@
Obtained from: NetBSD
MFC after: 4 days
Diffstat (limited to 'lib/libc/alpha/gen')
| -rw-r--r-- | lib/libc/alpha/gen/divrem.m4 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libc/alpha/gen/divrem.m4 b/lib/libc/alpha/gen/divrem.m4 index 10406a6..6afa2e1 100644 --- a/lib/libc/alpha/gen/divrem.m4 +++ b/lib/libc/alpha/gen/divrem.m4 @@ -172,7 +172,7 @@ ifelse(OP, `div', ifelse(S, `true', ` /* Check to see if we should negate it. */ - subqv zero, RESULT, T_0 + subq zero, RESULT, T_0 cmovlbs NEG, T_0, RESULT ') |
