[NVPTX] Read __CUDA_FTZ from module flags in NVVMReflect.
Summary:
Previously the NVVMReflect pass would read its configuration from
command-line flags or a static configuration given to the pass at
instantiation time.
This doesn't quite work for clang's use-case. It needs to pass a value
for __CUDA_FTZ down on a per-module basis. We use a module flag for
this, so the NVVMReflect pass needs to be updated to read said flag.
Reviewers: tra, rnk
Subscribers: cfe-commits, jholewinski
Differential Revision: http://reviews.llvm.org/D18672
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265090
91177308-0d34-0410-b5e6-
96231b3b80d8