[RewriteStatepointsForGC] Add tests for the base pointer identification algorithm

[oota-llvm.git] / test / Transforms / RewriteStatepointsForGC / base-pointers-11.ll

diff --git a/test/Transforms/RewriteStatepointsForGC/base-pointers-11.ll b/test/Transforms/RewriteStatepointsForGC/base-pointers-11.ll
new file mode 100644 (file)
index 0000000..1e8d071
--- /dev/null
+++ b/test/Transforms/RewriteStatepointsForGC/base-pointers-11.ll
@@ -0,0 +1,26 @@
+; RUN: opt %s -rewrite-statepoints-for-gc -spp-print-base-pointers  -S 2>&1 | FileCheck %s
+
+; CHECK: derived %next base %base_obj
+
+declare void @do_safepoint()
+
+define void @test(i64 addrspace(1)* %base_obj) gc "statepoint-example" {
+entry:
+  %obj = getelementptr i64, i64 addrspace(1)* %base_obj, i32 1
+  br label %loop
+
+loop:                                             ; preds = %loop, %entry
+; CHECK-LABEL: loop:
+; CHECK: phi i64 addrspace(1)*
+; CHECK-DAG:  [ %base_obj.relocated, %loop ] 
+; CHECK-DAG:  [ %base_obj, %entry ]
+; CHECK:  %current = phi i64 addrspace(1)* 
+; CHECK-DAG:  [ %obj, %entry ]
+; CHECK-DAG:  [ %next.relocated, %loop ]
+  %current = phi i64 addrspace(1)* [ %obj, %entry ], [ %next, %loop ]
+  %next = getelementptr i64, i64 addrspace(1)* %current, i32 1
+  %safepoint_token = call i32 (void ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()* @do_safepoint, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
+  br label %loop
+}
+
+declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()*, i32, i32, ...)