[llvm] [llvm-c] Create a 128 bit floating point constant from 2 64 bit values (PR #164381)

[Joshua Cranmer via llvm-commits]

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@@ -2339,6 +2339,13 @@ LLVM_C_ABI LLVMValueRef LLVMConstRealOfStringAndSize(LLVMTypeRef RealTy,
                                                      const char *Text,
                                                      unsigned SLen);
 
+/**
+ * Obtain a constant for a floating point FP128 value from 2 64 bit values.
+ * (112 bit mantissa)
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jcranmer-intel wrote:

The documentation should probably state the endianness of the values.

https://github.com/llvm/llvm-project/pull/164381