radeon/llvm: Make radeon_llvm_util.cpp a C file

All the functions in this file are now implemented in C.

1 files changed, 49 insertions, 0 deletions

diff --git a/src/gallium/drivers/radeon/radeon_llvm_util.c b/src/gallium/drivers/radeon/radeon_llvm_util.c
new file mode 100644
index 00000000000..3d30612ffd9
--- /dev/null
+++ b/src/gallium/drivers/radeon/radeon_llvm_util.c
@@ -0,0 +1,49 @@
+#include "radeon_llvm_util.h"
+#include "util/u_memory.h"
+
+#include <llvm-c/BitReader.h>
+#include <llvm-c/Core.h>
+
+static LLVMModuleRef radeon_llvm_parse_bitcode(const unsigned char * bitcode,
+							unsigned bitcode_len)
+{
+	LLVMMemoryBufferRef buf;
+	LLVMModuleRef module = LLVMModuleCreateWithName("radeon");
+
+	buf = LLVMCreateMemoryBufferWithMemoryRangeCopy((const char*)bitcode,
+							bitcode_len, "radeon");
+	LLVMParseBitcode(buf, &module, NULL);
+	return module;
+}
+
+unsigned radeon_llvm_get_num_kernels(const unsigned char *bitcode,
+				unsigned bitcode_len)
+{
+	LLVMModuleRef mod = radeon_llvm_parse_bitcode(bitcode, bitcode_len);
+	return LLVMGetNamedMetadataNumOperands(mod, "opencl.kernels");
+}
+
+LLVMModuleRef radeon_llvm_get_kernel_module(unsigned index,
+		const unsigned char *bitcode, unsigned bitcode_len)
+{
+	LLVMModuleRef mod;
+	unsigned num_kernels;
+	LLVMValueRef *kernel_metadata;
+	unsigned i;
+
+	mod = radeon_llvm_parse_bitcode(bitcode, bitcode_len);
+	num_kernels = LLVMGetNamedMetadataNumOperands(mod, "opencl.kernels");
+	kernel_metadata = MALLOC(num_kernels * sizeof(LLVMValueRef));
+	LLVMGetNamedMetadataOperands(mod, "opencl.kernels", kernel_metadata);
+	for (i = 0; i < num_kernels; i++) {
+		LLVMValueRef kernel_signature, kernel_function;
+		if (i == index) {
+			continue;
+		}
+		kernel_signature = kernel_metadata[i];
+		LLVMGetMDNodeOperands(kernel_signature, &kernel_function);
+		LLVMDeleteFunction(kernel_function);
+	}
+	FREE(kernel_metadata);
+	return mod;
+}