http://llvm.org/bugs/show_bug.cgi?id=2577
Chandler Carruth <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED CC| |[email protected] Resolution|FIXED | --- Comment #4 from Chandler Carruth <[email protected]> 2011-10-17 01:22:23 CDT --- This is not yet done... It's a bit hard to prove to yourself that it is not done by running a command because we have few optimizations using the information, but I've added a testing layer that demonstrates that in fact metadata produced by the LLVM expect intrinsic does not get incorporated into the branch probability analysis, or consequentially into the block frequency analysis, or any optimizations we do have using them. I'm mailing patches to cfe-commits which will bridge this gap in the infrastructure, and I've already fixed a critical bug in branch probabilities that would have led to turning this on producing exactly *backwards* probabilities, pessimizing code instead of optimizing it. See r142168 for that bit of fun. -- Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. _______________________________________________ LLVMbugs mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
