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-rw-r--r--compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
index 216c35d6da0..792d921c6a4 100644
--- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
@@ -1967,3 +1967,7 @@ extern "C" int32_t LLVMRustGetElementTypeArgIndex(LLVMValueRef CallSite) {
 #endif
     return -1;
 }
+
+extern "C" bool LLVMRustIsBitcode(char *ptr, size_t len) {
+  return identify_magic(StringRef(ptr, len)) == file_magic::bitcode;
+}