Commit Graph

2 Commits

Author SHA1 Message Date
Cameron Zwarich 9601ddb2f3 When scalar replacement returns a vector type, only accept it if the vector
type's bitwidth matches the (allocated) size of the alloca. This severely
pessimizes vector scalar replacement when the only vector type being used is
something like <3 x float> on x86 or ARM whose allocated size matches a
<4 x float>.

I hope to fix some of the flawed assumptions about allocated size throughout
scalar replacement and reenable this in most cases.

llvm-svn: 133338
2011-06-18 06:17:51 +00:00
Cameron Zwarich 2a26100c87 Fix an invalid bitcast crash that occurs when doing a partial memset of a vector
alloca. Fixes part of <rdar://problem/9580800>.

llvm-svn: 133336
2011-06-18 05:47:49 +00:00