From the LangRef definition for frem:
"The value produced is the floating-point remainder of the two operands.
This is the same output as a libm ‘fmod‘ function, but without any
possibility of setting errno. The remainder has the same sign as the
dividend. This instruction is assumed to execute in the default
floating-point environment."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327626 91177308-0d34-0410-b5e6-96231b3b80d8
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