make the x86-32 backend specify a byval alignment, even when the
code generator will do it.  With this patch, clang compiles the example
in PR9794 to not have an alloca temporary.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131881 91177308-0d34-0410-b5e6-96231b3b80d8
6 files changed