[LLVM-C] Add accessors to the default floating-point metadata node

Summary: Add a getter and setter pair for floating-point accuracy metadata.

Reviewers: whitequark, deadalnix

Reviewed By: whitequark

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60527

llvm-svn: 358883

2 files changed, 30 insertions, 1 deletions

diff --git a/llvm/include/llvm-c/Core.h b/llvm/include/llvm-c/Core.h
index 3d153d50aa9..0a8135ff4a0 100644
--- a/llvm/include/llvm-c/Core.h
+++ b/llvm/include/llvm-c/Core.h
@@ -3535,7 +3535,24 @@ void LLVMSetCurrentDebugLocation2(LLVMBuilderRef Builder, LLVMMetadataRef Loc);
  * @see llvm::IRBuilder::SetInstDebugLocation()
  */
 void LLVMSetInstDebugLocation(LLVMBuilderRef Builder, LLVMValueRef Inst);
-  
+
+/**
+ * Get the dafult floating-point math metadata for a given builder.
+ *
+ * @see llvm::IRBuilder::getDefaultFPMathTag()
+ */
+LLVMMetadataRef LLVMBuilderGetDefaultFPMathTag(LLVMBuilderRef Builder);
+
+/**
+ * Set the default floating-point math metadata for the given builder.
+ *
+ * To clear the metadata, pass NULL to \p FPMathTag.
+ *
+ * @see llvm::IRBuilder::setDefaultFPMathTag()
+ */
+void LLVMBuilderSetDefaultFPMathTag(LLVMBuilderRef Builder,
+                                    LLVMMetadataRef FPMathTag);
+
 /**
  * Deprecated: Passing the NULL location will crash.
  * Use LLVMGetCurrentDebugLocation2 instead.
diff --git a/llvm/lib/IR/Core.cpp b/llvm/lib/IR/Core.cpp
index 44291a1784d..2a4ea8d5246 100644
--- a/llvm/lib/IR/Core.cpp
+++ b/llvm/lib/IR/Core.cpp
@@ -3033,6 +3033,18 @@ void LLVMSetInstDebugLocation(LLVMBuilderRef Builder, LLVMValueRef Inst) {
   unwrap(Builder)->SetInstDebugLocation(unwrap<Instruction>(Inst));
 }
 
+void LLVMBuilderSetDefaultFPMathTag(LLVMBuilderRef Builder,
+                                    LLVMMetadataRef FPMathTag) {
+
+  unwrap(Builder)->setDefaultFPMathTag(FPMathTag
+                                       ? unwrap<MDNode>(FPMathTag)
+                                       : nullptr);
+}
+
+LLVMMetadataRef LLVMBuilderGetDefaultFPMathTag(LLVMBuilderRef Builder) {
+  return wrap(unwrap(Builder)->getDefaultFPMathTag());
+}
+
 /*--.. Instruction builders ................................................--*/
 
 LLVMValueRef LLVMBuildRetVoid(LLVMBuilderRef B) {