tree 330630de3a2f00f005b264828a5f7e2947f0f773
parent c24a8a0b6dad5a33d84f5fb846edb28c43312c71
author Richard Henderson <rth@twiddle.net> 1404416194 -0700
committer Richard Henderson <rth@twiddle.net> 1431979426 -0700

target-alpha: Fix cvttq vs large integers

The range +- 2**63 - 2**64 was returning the wrong truncated
result.  We also incorrectly signaled overflow for -2**63.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>