Add binding for counting argument and find called value of call and invoke instruction from the C API.

Summary: As per title. This remove the need to rely on internal knowledge of call and invoke instruction to find called value and argument count.

Reviewers: bogner, chandlerc, echristo, dblaikie, joker.eph, Wallbraker

Differential Revision: http://reviews.llvm.org/D17054

llvm-svn: 260332

1 files changed, 22 insertions, 0 deletions

diff --git a/llvm/include/llvm-c/Core.h b/llvm/include/llvm-c/Core.h
index 27eb7aef3fc..019bc7a8044 100644
--- a/llvm/include/llvm-c/Core.h
+++ b/llvm/include/llvm-c/Core.h
@@ -2386,6 +2386,17 @@ LLVMValueRef LLVMInstructionClone(LLVMValueRef Inst);
  */
 
 /**
+ * Obtain the argument count for a call instruction.
+ *
+ * This expects an LLVMValueRef that corresponds to a llvm::CallInst or
+ * llvm::InvokeInst.
+ *
+ * @see llvm::CallInst::getNumArgOperands()
+ * @see llvm::InvokeInst::getNumArgOperands()
+ */
+unsigned LLVMGetNumArgOperands(LLVMValueRef Instr);
+
+/**
  * Set the calling convention for a call instruction.
  *
  * This expects an LLVMValueRef that corresponds to a llvm::CallInst or
@@ -2414,6 +2425,17 @@ void LLVMSetInstrParamAlignment(LLVMValueRef Instr, unsigned index,
                                 unsigned align);
 
 /**
+ * Obtain the pointer to the function invoked by this instruction.
+ *
+ * This expects an LLVMValueRef that corresponds to a llvm::CallInst or
+ * llvm::InvokeInst.
+ *
+ * @see llvm::CallInst::getCalledValue()
+ * @see llvm::InvokeInst::getCalledValue()
+ */
+LLVMValueRef LLVMGetCalledValue(LLVMValueRef Instr);
+
+/**
  * Obtain whether a call instruction is a tail call.
  *
  * This only works on llvm::CallInst instructions.