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Author SHA1 Message Date
JF Bastien fa946233b4 [MergeFuncs] Fix callsite attributes in thunk generation 
This change correctly sets the attributes on the callsites
generated in thunks. This makes sure things such as sret, sext, etc.
are correctly set, so that the call can be a proper tailcall.

Also, the transfer of attributes in the replaceDirectCallers function
appears to be unnecessary, but until this is confirmed it will remain.

Author: jrkoenig
Reviewers: dschuff, jfb
Subscribers: llvm-commits, nlewycky
Differential revision: http://reviews.llvm.org/D12581

llvm-svn: 247313
 2015-09-10 18:08:35 +00:00
Arnold Schwaighofer 3651233004 MergeFunc: Transfer the callee's attributes when replacing a direct caller 
We insert a bitcast which obfuscates the getCalledFunction for the utility
function which looks up attributes from the called function. Loosing ABI
changing parameter attributes is a bad thing.

rdar://21516488

llvm-svn: 242807
 2015-07-21 17:07:07 +00:00
Arnold Schwaighofer 764d6de823 Revert "MergeFuncs: Transfer the function parameter attributes to the call site" 
It is okay to not transfer parameter attributes.

This reverts commit r242558.

llvm-svn: 242646
 2015-07-19 19:30:43 +00:00
Arnold Schwaighofer 690cd87dcd MergeFuncs: Transfer the function parameter attributes to the call site 
rdar://21516488

llvm-svn: 242558
 2015-07-17 18:59:08 +00:00