Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/Transforms/RewriteStatepointsForGC/base-pointers-7.ll

@@ -0,0 +1,46 @@
+; RUN: opt < %s -rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s
+; RUN: opt < %s -passes=rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s
+
+; CHECK: derived %merged_value base %merged_value.base
+
+declare void @site_for_call_safpeoint()
+
+define i64 addrspace(1)* @test(i64 addrspace(1)* %base_obj_x, i64 addrspace(1)* %base_obj_y, i1 %runtime_condition_x, i1 %runtime_condition_y) gc "statepoint-example" {
+entry:
+  br i1 %runtime_condition_x, label %here, label %there
+
+here:                                             ; preds = %entry
+  br i1 %runtime_condition_y, label %bump_here_a, label %bump_here_b
+
+bump_here_a:                                      ; preds = %here
+  %x_a = getelementptr i64, i64 addrspace(1)* %base_obj_x, i32 1
+  br label %merge_here
+
+bump_here_b:                                      ; preds = %here
+  %x_b = getelementptr i64, i64 addrspace(1)* %base_obj_y, i32 2
+  br label %merge_here
+
+merge_here:                                       ; preds = %bump_here_b, %bump_here_a
+; CHECK: merge_here:
+; CHECK-DAG: %x.base
+; CHECK-DAG: phi i64 addrspace(1)*
+; CHECK-DAG: [ %base_obj_x, %bump_here_a ]
+; CHECK-DAG: [ %base_obj_y, %bump_here_b ]
+  %x = phi i64 addrspace(1)* [ %x_a, %bump_here_a ], [ %x_b, %bump_here_b ]
+  br label %merge
+
+there:                                            ; preds = %entry
+  %y = getelementptr i64, i64 addrspace(1)* %base_obj_y, i32 1
+  br label %merge
+
+merge:                                            ; preds = %there, %merge_here
+; CHECK: merge:
+; CHECK-DAG:  %merged_value.base
+; CHECK-DAG: phi i64 addrspace(1)*
+; CHECK-DAG: %merge_here
+; CHECK-DAG: [ %base_obj_y, %there ]
+; CHECK:  %merged_value = phi i64 addrspace(1)* [ %x, %merge_here ], [ %y, %there ]  
+  %merged_value = phi i64 addrspace(1)* [ %x, %merge_here ], [ %y, %there ]
+  call void @site_for_call_safpeoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i64 addrspace(1)* %merged_value
+}