[PATCH] Don't Promote x86_fp80 byval Pointer Arguments

[Thomas Jablin]

Don't promote byval pointer arguments when when their size in bits is not
equal to their alloc size in bits. This can happen for x86_fp80, where the
size in bits is 80 but the alloca size in bits in 128. Promoting these
types can break passing unions of x86_fp80s and other types.





On Mon, Aug 25, 2014 at 7:58 PM, Thomas Jablin <tjablin at gmail.com> wrote:

> http://reviews.llvm.org/D5057
>
> Files:
>   lib/Transforms/IPO/ArgumentPromotion.cpp
>   test/Transforms/ArgumentPromotion/fp80.ll
>
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