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2 Commits

Author SHA1 Message Date
Eric Christopher bcaedb5ce0 Rewrite the expander for umulo/smulo to remember to sign extend the input 
manually and pass all (now) 4 arguments to the mul libcall. Add a new
ExpandLibCall for just this (copied gratuitously from type legalization).

Fixes rdar://9292577

llvm-svn: 129842
 2011-04-20 01:19:45 +00:00
Eric Christopher bb14f65672 If we can, lower the multiply part of a umulo/smulo call to a libcall 
with an invalid type then split the result and perform the overflow check
normally.

Fixes the 32-bit parts of rdar://8622122 and rdar://8774702.

llvm-svn: 123864
 2011-01-20 00:29:24 +00:00