[LLVM-C][OCaml] Add LowerAtomic pass to C and OCaml APIs

[jberdine]

Summary

Adds LLVMAddLowerAtomicPass to expose createLowerAtomicPass in the C
and OCaml APIs.

[whitequark]

include/llvm-c/Transforms/Scalar.h

102

I think the passes are sorted alphabetically here, do you think you can keep the ordering?

[jberdine]

reorder

lib/Transforms/Scalar/Scalar.cpp

207

Also reordered this one.

bindings/ocaml/transforms/scalar_opts/llvm_scalar_opts.ml

external add_loop_unswitch
   : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit
   = "llvm_add_loop_unswitch"
 external add_memcpy_opt
   : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit
   = "llvm_add_memcpy_opt"
 external add_partially_inline_lib_calls
   : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit
   = "llvm_add_partially_inline_lib_calls"
+external add_lower_atomic
+  : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit
+  = "llvm_add_lower_atomic"
 external add_lower_switch
   : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit
   = "llvm_add_lower_switch"
 external add_memory_to_register_promotion
   : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit
   = "llvm_add_promote_memory_to_register"
 external add_reassociation
   : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit

bindings/ocaml/transforms/scalar_opts/llvm_scalar_opts.mli

external add_memcpy_opt
   : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit
   = "llvm_add_memcpy_opt"
 
 (** See the [llvm::createPartiallyInlineLibCallsPass] function. *)
 external add_partially_inline_lib_calls
   : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit
   = "llvm_add_partially_inline_lib_calls"
 
+(** See the [llvm::createLowerAtomicPass] function. *)
+external add_lower_atomic
+  : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit
+  = "llvm_add_lower_atomic"
+
 (** See the [llvm::createLowerSwitchPass] function. *)
 external add_lower_switch
   : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit
   = "llvm_add_lower_switch"
 
 (** See the [llvm::createPromoteMemoryToRegisterPass] function. *)
 external add_memory_to_register_promotion
   : [< Llvm.PassManager.any ] Llvm.PassManager.t -> unit

bindings/ocaml/transforms/scalar_opts/scalar_opts_ocaml.c

 
 /* [<Llvm.PassManager.any] Llvm.PassManager.t -> unit */
 CAMLprim value llvm_add_partially_inline_lib_calls(LLVMPassManagerRef PM) {
   LLVMAddPartiallyInlineLibCallsPass(PM);
   return Val_unit;
 }
 
 /* [<Llvm.PassManager.any] Llvm.PassManager.t -> unit */
+CAMLprim value llvm_add_lower_atomic(LLVMPassManagerRef PM) {
+  LLVMAddLowerAtomicPass(PM);
+  return Val_unit;
+}
+
+/* [<Llvm.PassManager.any] Llvm.PassManager.t -> unit */
 CAMLprim value llvm_add_lower_switch(LLVMPassManagerRef PM) {
   LLVMAddLowerSwitchPass(PM);
   return Val_unit;
 }
 
 /* [<Llvm.PassManager.any] Llvm.PassManager.t -> unit */
 CAMLprim value llvm_add_promote_memory_to_register(LLVMPassManagerRef PM) {
   LLVMAddPromoteMemoryToRegisterPass(PM);

include/llvm-c/Transforms/Scalar.h

 void LLVMAddLoopUnswitchPass(LLVMPassManagerRef PM);
 
 /** See llvm::createMemCpyOptPass function. */
 void LLVMAddMemCpyOptPass(LLVMPassManagerRef PM);
 
 /** See llvm::createPartiallyInlineLibCallsPass function. */
 void LLVMAddPartiallyInlineLibCallsPass(LLVMPassManagerRef PM);
 
+/** See llvm::createLowerAtomicPass function. */
+void LLVMAddLowerAtomicPass(LLVMPassManagerRef PM);
+
 /** See llvm::createReassociatePass function. */
 void LLVMAddReassociatePass(LLVMPassManagerRef PM);
 
 /** See llvm::createSCCPPass function. */
 void LLVMAddSCCPPass(LLVMPassManagerRef PM);
 
 /** See llvm::createSROAPass function. */
 void LLVMAddScalarReplAggregatesPass(LLVMPassManagerRef PM);

lib/Transforms/Scalar/Scalar.cpp

 void LLVMAddMemCpyOptPass(LLVMPassManagerRef PM) {
   unwrap(PM)->add(createMemCpyOptPass());
 }
 
 void LLVMAddPartiallyInlineLibCallsPass(LLVMPassManagerRef PM) {
   unwrap(PM)->add(createPartiallyInlineLibCallsPass());
 }
 
+void LLVMAddLowerAtomicPass(LLVMPassManagerRef PM) {
+  unwrap(PM)->add(createLowerAtomicPass());
+}
+
 void LLVMAddReassociatePass(LLVMPassManagerRef PM) {
   unwrap(PM)->add(createReassociatePass());
 }
 
 void LLVMAddSCCPPass(LLVMPassManagerRef PM) {
   unwrap(PM)->add(createSCCPPass());
 }