Merge r242372 to 3.7 so that it goes out in 3.7.1

It restores the signature of LLVMBuildLandingPad in the C API back to what it
was in 3.6 and earlier.

The 3.7.0 release should have had this but it did not.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_37@247191 91177308-0d34-0410-b5e6-96231b3b80d8

Author: rnk

bindings/go/llvm/ir.go

@@ -1728,7 +1728,7 @@ func (b Builder) CreatePtrDiff(lhs, rhs Value, name string) (v Value) {
 func (b Builder) CreateLandingPad(t Type, personality Value, nclauses int, name string) (l Value) {
 	cname := C.CString(name)
 	defer C.free(unsafe.Pointer(cname))
-	l.C = C.LLVMBuildLandingPad(b.C, t.C, C.unsigned(nclauses), cname)
+	l.C = C.LLVMBuildLandingPad(b.C, t.C, nil, C.unsigned(nclauses), cname)
 	return l
 }
 

bindings/ocaml/llvm/llvm_ocaml.c

@@ -1745,7 +1745,7 @@ CAMLprim LLVMValueRef llvm_build_invoke_bc(value Args[], int NumArgs) {
 CAMLprim LLVMValueRef llvm_build_landingpad(LLVMTypeRef Ty, LLVMValueRef PersFn,
                                             value NumClauses,  value Name,
                                             value B) {
-    return LLVMBuildLandingPad(Builder_val(B), Ty, Int_val(NumClauses),
+    return LLVMBuildLandingPad(Builder_val(B), Ty, PersFn, Int_val(NumClauses),
                                String_val(Name));
 }
 

include/llvm-c/Core.h

@@ -2675,7 +2675,8 @@ LLVMValueRef LLVMBuildInvoke(LLVMBuilderRef, LLVMValueRef Fn,
                              LLVMBasicBlockRef Then, LLVMBasicBlockRef Catch,
                              const char *Name);
 LLVMValueRef LLVMBuildLandingPad(LLVMBuilderRef B, LLVMTypeRef Ty,
-                                 unsigned NumClauses, const char *Name);
+                                 LLVMValueRef PersFn, unsigned NumClauses,
+                                 const char *Name);
 LLVMValueRef LLVMBuildResume(LLVMBuilderRef B, LLVMValueRef Exn);
 LLVMValueRef LLVMBuildUnreachable(LLVMBuilderRef);
 

lib/IR/Core.cpp

@@ -2257,7 +2257,14 @@ LLVMValueRef LLVMBuildInvoke(LLVMBuilderRef B, LLVMValueRef Fn,
 }
 
 LLVMValueRef LLVMBuildLandingPad(LLVMBuilderRef B, LLVMTypeRef Ty,
-                                 unsigned NumClauses, const char *Name) {
+                                 LLVMValueRef PersFn, unsigned NumClauses,
+                                 const char *Name) {
+  // The personality used to live on the landingpad instruction, but now it
+  // lives on the parent function. For compatibility, take the provided
+  // personality and put it on the parent function.
+  if (PersFn)
+    unwrap(B)->GetInsertBlock()->getParent()->setPersonalityFn(
+        cast<Function>(unwrap(PersFn)));
   return wrap(unwrap(B)->CreateLandingPad(unwrap(Ty), NumClauses, Name));
 }