On Thu, 14 Apr 2011, Eric Botcazou wrote: > > This is the "real" fix for PR46076 that I wanted to persue. Make > > function pointer type conversions useless as to more aggressively > > be able to turn indirect into direct calls. This requires that we > > preserve the original type signature of the called function as > > presented by the frontend. The patch does that by adding a fntype > > field to every call stmt in GIMPLE and extract this information > > during gimplification. > > The patch is incomplete though: the type is preserved at the GIMPLE level but > is dropped at the RTL level, so you can get call convention mismatches. The > attached patch is needed to cure the 3 ACATS failures on x86: > > FAIL: c431001 > FAIL: c731001 > FAIL: ca11c02 > > I think the GIMPLE->Tree->RTL interface would need to be audited here.
I'm working on a fix along this line, it needs some tweaks elsewhere. Richard.
