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, 31 insertions, 0 deletions

diff --git a/llvm/test/Transforms/Inline/inline-constexpr-addrspacecast-argument.ll b/llvm/test/Transforms/Inline/inline-constexpr-addrspacecast-argument.ll
new file mode 100644
index 00000000000..b8d41abe1c3
--- /dev/null
+++ b/llvm/test/Transforms/Inline/inline-constexpr-addrspacecast-argument.ll
@@ -0,0 +1,31 @@
+; RUN: opt -S -inline < %s | FileCheck %s
+; RUN: opt -S -passes='cgscc(inline)' < %s | FileCheck %s
+
+target datalayout = "e-p3:32:32-p4:64:64-n32"
+
+@lds = internal addrspace(3) global [64 x i64] zeroinitializer
+
+; CHECK-LABEL: @constexpr_addrspacecast_ptr_size_change(
+; CHECK: load i64, i64 addrspace(4)* addrspacecast (i64 addrspace(3)* getelementptr inbounds ([64 x i64], [64 x i64] addrspace(3)* @lds, i32 0, i32 0) to i64 addrspace(4)*)
+; CHECK-NEXT: br
+define void @constexpr_addrspacecast_ptr_size_change() #0 {
+  %tmp0 = call i32 @foo(i64 addrspace(4)* addrspacecast (i64 addrspace(3)* getelementptr inbounds ([64 x i64], [64 x i64] addrspace(3)* @lds, i32 0, i32 0) to i64 addrspace(4)*)) #1
+  ret void
+}
+
+define i32 @foo(i64 addrspace(4)* %arg) #1 {
+bb:
+  %tmp = getelementptr i64, i64 addrspace(4)* %arg, i64 undef
+  %tmp1 = load i64, i64 addrspace(4)* %tmp
+  br i1 undef, label %bb2, label %bb3
+
+bb2:
+  store i64 0, i64 addrspace(4)* %tmp
+  br label %bb3
+
+bb3:
+  unreachable
+}
+
+attributes #0 = { nounwind }
+attributes #1 = { alwaysinline nounwind }