[llvm] [C API] Add getters and setters for fast-math flags on relevant instructions (PR #75123)

[Nikita Popov via llvm-commits]

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@@ -3319,6 +3319,52 @@ void LLVMSetArgOperand(LLVMValueRef Funclet, unsigned i, LLVMValueRef value) {
 
 /*--.. Arithmetic ..........................................................--*/
 
+static FastMathFlags mapFromLLVMFastMathFlags(LLVMFastMathFlags FMF) {
+  FastMathFlags NewFMF;
+  // First, check if all bits are set
+  // If not, check each one explicitly
+  if (FMF == static_cast<LLVMFastMathFlags>(LLVMFastMathAll))
+    NewFMF.set();
+  else {
+    NewFMF.setAllowReassoc((FMF & LLVMFastMathAllowReassoc) != 0);
+    NewFMF.setNoNaNs((FMF & LLVMFastMathNoNaNs) != 0);
+    NewFMF.setNoInfs((FMF & LLVMFastMathNoInfs) != 0);
+    NewFMF.setNoSignedZeros((FMF & LLVMFastMathNoSignedZeros) != 0);
+    NewFMF.setAllowReciprocal((FMF & LLVMFastMathAllowReciprocal) != 0);
+    NewFMF.setAllowContract((FMF & LLVMFastMathAllowContract) != 0);
+    NewFMF.setApproxFunc((FMF & LLVMFastMathApproxFunc) != 0);
+  }
+
+  return NewFMF;
+}
+
+static LLVMFastMathFlags mapToLLVMFastMathFlags(FastMathFlags FMF) {
+
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nikic wrote:

Stray newline.

https://github.com/llvm/llvm-project/pull/75123