1 files changed, 104 insertions, 0 deletions
diff --git a/test/Transforms/RewriteStatepointsForGC/deopt-bundles/deref-pointers.ll b/test/Transforms/RewriteStatepointsForGC/deopt-bundles/deref-pointers.ll
new file mode 100644
index 000000000000..f04c6784a878
--- /dev/null
+++ b/test/Transforms/RewriteStatepointsForGC/deopt-bundles/deref-pointers.ll
@@ -0,0 +1,104 @@
+; RUN: opt -S -rewrite-statepoints-for-gc -rs4gc-use-deopt-bundles < %s | FileCheck %s
+
+; CHECK: declare i8 addrspace(1)* @some_function_ret_deref()
+; CHECK: define i8 addrspace(1)* @test_deref_arg(i8 addrspace(1)* %a)
+; CHECK: define i8 addrspace(1)* @test_deref_or_null_arg(i8 addrspace(1)* %a)
+; CHECK: define i8 addrspace(1)* @test_noalias_arg(i8 addrspace(1)* %a)
+
+declare void @foo()
+
+declare i8 addrspace(1)* @some_function() "gc-leaf-function"
+
+declare void @some_function_consumer(i8 addrspace(1)*) "gc-leaf-function"
+
+declare dereferenceable(4) i8 addrspace(1)* @some_function_ret_deref() "gc-leaf-function"
+declare noalias i8 addrspace(1)* @some_function_ret_noalias() "gc-leaf-function"
+
+define i8 addrspace(1)* @test_deref_arg(i8 addrspace(1)* dereferenceable(4) %a) gc "statepoint-example" {
+entry:
+  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i8 addrspace(1)* %a
+}
+
+define i8 addrspace(1)* @test_deref_or_null_arg(i8 addrspace(1)* dereferenceable_or_null(4) %a) gc "statepoint-example" {
+entry:
+  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i8 addrspace(1)* %a
+}
+
+define i8 addrspace(1)* @test_noalias_arg(i8 addrspace(1)* noalias %a) gc "statepoint-example" {
+entry:
+  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i8 addrspace(1)* %a
+}
+
+define i8 addrspace(1)* @test_deref_retval() gc "statepoint-example" {
+; CHECK-LABEL: @test_deref_retval(
+; CHECK: %a = call i8 addrspace(1)* @some_function()
+entry:
+  %a = call dereferenceable(4) i8 addrspace(1)* @some_function()
+  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i8 addrspace(1)* %a
+}
+
+define i8 addrspace(1)* @test_deref_or_null_retval() gc "statepoint-example" {
+; CHECK-LABEL: @test_deref_or_null_retval(
+; CHECK: %a = call i8 addrspace(1)* @some_function()
+entry:
+  %a = call dereferenceable_or_null(4) i8 addrspace(1)* @some_function()
+  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i8 addrspace(1)* %a
+}
+
+define i8 addrspace(1)* @test_noalias_retval() gc "statepoint-example" {
+; CHECK-LABEL: @test_noalias_retval(
+; CHECK: %a = call i8 addrspace(1)* @some_function()
+entry:
+  %a = call noalias i8 addrspace(1)* @some_function()
+  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i8 addrspace(1)* %a
+}
+
+define i8 @test_md(i8 addrspace(1)* %ptr) gc "statepoint-example" {
+; CHECK-LABEL: @test_md(
+; CHECK: %tmp = load i8, i8 addrspace(1)* %ptr, !tbaa !0
+entry:
+  %tmp = load i8, i8 addrspace(1)* %ptr, !tbaa !0
+  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i8 %tmp
+}
+
+define i8 addrspace(1)* @test_decl_only_attribute(i8 addrspace(1)* %ptr) gc "statepoint-example" {
+; CHECK-LABEL: @test_decl_only_attribute(
+; No change here, but the prototype of some_function_ret_deref should have changed.
+; CHECK: call i8 addrspace(1)* @some_function_ret_deref()
+entry:
+  %a = call i8 addrspace(1)* @some_function_ret_deref()
+  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i8 addrspace(1)* %a
+}
+
+define i8 addrspace(1)* @test_decl_only_noalias(i8 addrspace(1)* %ptr) gc "statepoint-example" {
+; CHECK-LABEL: @test_decl_only_noalias(
+; No change here, but the prototype of some_function_ret_noalias should have changed.
+; CHECK: call i8 addrspace(1)* @some_function_ret_noalias()
+entry:
+  %a = call i8 addrspace(1)* @some_function_ret_noalias()
+  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i8 addrspace(1)* %a
+}
+
+define i8 addrspace(1)* @test_callsite_arg_attribute(i8 addrspace(1)* %ptr) gc "statepoint-example" {
+; CHECK-LABEL: @test_callsite_arg_attribute(
+; CHECK: call void @some_function_consumer(i8 addrspace(1)* %ptr)
+; CHECK: !0 = !{!1, !1, i64 0}
+; CHECK: !1 = !{!"red", !2}
+; CHECK: !2 = !{!"blue"}
+entry:
+  call void @some_function_consumer(i8 addrspace(1)* dereferenceable(4) noalias %ptr)
+  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i8 addrspace(1)* %ptr
+}
+!0 = !{!1, !1, i64 0, i64 1}
+!1 = !{!"red", !2}
+!2 = !{!"blue"}