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-rw-r--r--src/rustllvm/RustWrapper.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/rustllvm/RustWrapper.cpp b/src/rustllvm/RustWrapper.cpp
index 91cf4aa1da9..f488a517b23 100644
--- a/src/rustllvm/RustWrapper.cpp
+++ b/src/rustllvm/RustWrapper.cpp
@@ -164,6 +164,11 @@ extern "C" void LLVMRemoveFunctionAttrString(LLVMValueRef fn, unsigned index, co
                                           to_remove));
 }
 
+// enable fpmath flag UnsafeAlgebra
+extern "C" void LLVMRustSetHasUnsafeAlgebra(LLVMValueRef Instr) {
+    unwrap<Instruction>(Instr)->setHasUnsafeAlgebra(true);
+}
+
 extern "C" LLVMValueRef LLVMBuildAtomicLoad(LLVMBuilderRef B,
                                             LLVMValueRef source,
                                             const char* Name,