On 09/11/2014 05:55 PM, Steven Bosscher wrote:
On Thu, Sep 11, 2014 at 3:26 PM, Bernd Schmidt wrote:
nvptx will be the first port to use BImode and have STORE_FLAG_VALUE==-1.
That has exposed a bug in combine where we can end up calling
num_sign_bit_copies for a BImode value. However, the return value is always
1 in that case, so it doesn't tell us anything and is going to be
misinterpreted by the caller.
Bootstrapped and tested on x86_64-linux, together with the other patches.
Ok?
This should be handled in num_sign_bit_copies itself, i.e. handle BImode there.
What do you expect that function to do different? It returns the correct
value.
Bernd
