[llvm-commits] [PATCH] lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp: [PR9581] Fix FP precision issue on mingw. It also reverts r129199.

[NAKAMURA Takumi]

FIXME: It is for i686-mingw32 for now, though, potentially the issue
might be on x87-based hosts with PC64.

FIXME: [PR6907] Use llvm/Support/FEnv.h. On clang++, <fenv.h> is
unavailable due to handling of #include_next.
---
 lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp |   33 ++++++++++++++++++----
 1 files changed, 27 insertions(+), 6 deletions(-)
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