Displaying 1 result from an estimated 1 matches for "hasvmlxforwarding".
2012 Dec 20
1
[LLVMdev] vmlx forwarding an cortex A9 question
Hi all,
On following code when I use llc targeting ARM Cortex-A9 as follows, if vmlx-forwarding is turned off then 'vmla' instructions are generated. It seems that -mcpu=cortex-a9 enables it by default and thus less 'vmla' instructions are generated. On this specific example it doesn't make any difference in term of performance, but on a more complex example disabling