1 files changed, 76 insertions, 0 deletions
diff --git a/test cases/frameworks/15 llvm/sum.c b/test cases/frameworks/15 llvm/sum.c
new file mode 100644
index 0000000..e35fe95
--- /dev/null
+++ b/test cases/frameworks/15 llvm/sum.c
@@ -0,0 +1,76 @@
+/** This code is public domain, and taken from
+ * https://github.com/paulsmith/getting-started-llvm-c-api/blob/master/sum.c
+ */
+/**
+ * LLVM equivalent of:
+ *
+ * int sum(int a, int b) {
+ *     return a + b;
+ * }
+ */
+
+#include <llvm-c/Core.h>
+#include <llvm-c/ExecutionEngine.h>
+#include <llvm-c/Target.h>
+#include <llvm-c/Analysis.h>
+#include <llvm-c/BitWriter.h>
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char const *argv[]) {
+    LLVMModuleRef mod = LLVMModuleCreateWithName("my_module");
+
+    LLVMTypeRef param_types[] = { LLVMInt32Type(), LLVMInt32Type() };
+    LLVMTypeRef ret_type = LLVMFunctionType(LLVMInt32Type(), param_types, 2, 0);
+    LLVMValueRef sum = LLVMAddFunction(mod, "sum", ret_type);
+
+    LLVMBasicBlockRef entry = LLVMAppendBasicBlock(sum, "entry");
+
+    LLVMBuilderRef builder = LLVMCreateBuilder();
+    LLVMPositionBuilderAtEnd(builder, entry);
+    LLVMValueRef tmp = LLVMBuildAdd(builder, LLVMGetParam(sum, 0), LLVMGetParam(sum, 1), "tmp");
+    LLVMBuildRet(builder, tmp);
+
+    char *error = NULL;
+    LLVMVerifyModule(mod, LLVMAbortProcessAction, &error);
+    LLVMDisposeMessage(error);
+
+    LLVMExecutionEngineRef engine;
+    error = NULL;
+    LLVMLinkInMCJIT();
+    LLVMInitializeNativeAsmPrinter();
+    LLVMInitializeNativeTarget();
+    if (LLVMCreateExecutionEngineForModule(&engine, mod, &error) != 0) {
+        fprintf(stderr, "failed to create execution engine\n");
+        abort();
+    }
+    if (error) {
+        fprintf(stderr, "error: %s\n", error);
+        LLVMDisposeMessage(error);
+        exit(EXIT_FAILURE);
+    }
+
+    if (argc < 3) {
+        fprintf(stderr, "usage: %s x y\n", argv[0]);
+        exit(EXIT_FAILURE);
+    }
+    long long x = strtoll(argv[1], NULL, 10);
+    long long y = strtoll(argv[2], NULL, 10);
+
+    LLVMGenericValueRef args[] = {
+        LLVMCreateGenericValueOfInt(LLVMInt32Type(), x, 0),
+        LLVMCreateGenericValueOfInt(LLVMInt32Type(), y, 0)
+    };
+    LLVMGenericValueRef res = LLVMRunFunction(engine, sum, 2, args);
+    printf("%d\n", (int)LLVMGenericValueToInt(res, 0));
+
+    // Write out bitcode to file
+    if (LLVMWriteBitcodeToFile(mod, "sum.bc") != 0) {
+        fprintf(stderr, "error writing bitcode to file, skipping\n");
+    }
+
+    LLVMDisposeBuilder(builder);
+    LLVMDisposeExecutionEngine(engine);
+}