Revert "Temporarily Revert "Add basic loop fusion pass.""

The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552

1 files changed, 29 insertions, 0 deletions

diff --git a/llvm/test/Transforms/RewriteStatepointsForGC/base-pointers-5.ll b/llvm/test/Transforms/RewriteStatepointsForGC/base-pointers-5.ll
new file mode 100644
index 00000000000..990a252d489
--- /dev/null
+++ b/llvm/test/Transforms/RewriteStatepointsForGC/base-pointers-5.ll
@@ -0,0 +1,29 @@
+; 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 @foo()
+
+define i64 addrspace(1)* @test(i64 addrspace(1)* %base_obj_x, i64 addrspace(1)* %base_obj_y, i1 %runtime_condition) gc "statepoint-example" {
+entry:
+  br i1 %runtime_condition, label %here, label %there
+
+here:                                             ; preds = %entry
+  br label %bump
+
+bump:                                             ; preds = %here
+  br label %merge
+
+there:                                            ; preds = %entry
+  %y = getelementptr i64, i64 addrspace(1)* %base_obj_y, i32 1
+  br label %merge
+
+merge:                                            ; preds = %there, %bump
+; CHECK: merge:
+; CHECK:  %merged_value.base = phi i64 addrspace(1)* [ %base_obj_x, %bump ], [ %base_obj_y, %there ]
+; CHECK-NEXT:  %merged_value = phi i64 addrspace(1)* [ %base_obj_x, %bump ], [ %y, %there ]  
+  %merged_value = phi i64 addrspace(1)* [ %base_obj_x, %bump ], [ %y, %there ]
+  call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
+  ret i64 addrspace(1)* %merged_value
+}