1 files changed, 52 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/statepoint.ll b/test/Transforms/InstCombine/statepoint.ll
new file mode 100644
index 000000000000..bee219db9c12
--- /dev/null
+++ b/test/Transforms/InstCombine/statepoint.ll
@@ -0,0 +1,52 @@
+; RUN: opt < %s -instcombine -S | FileCheck %s
+; These tests check the optimizations specific to
+; pointers being relocated at a statepoint.
+
+
+declare void @func()
+
+define i1 @test_negative(i32 addrspace(1)* %p) {
+entry:
+  %safepoint_token = tail call i32 (void ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()* @func, i32 0, i32 0, i32 0, i32 addrspace(1)* %p)
+  %pnew = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32 %safepoint_token, i32 4, i32 4)
+  %cmp = icmp eq i32 addrspace(1)* %pnew, null
+  ret i1 %cmp
+; CHECK-LABEL: test_negative
+; CHECK: %pnew = call i32 addrspace(1)*
+; CHECK: ret i1 %cmp
+}
+
+define i1 @test_nonnull(i32 addrspace(1)* nonnull %p) {
+entry:
+  %safepoint_token = tail call i32 (void ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()* @func, i32 0, i32 0, i32 0, i32 addrspace(1)* %p)
+  %pnew = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32 %safepoint_token, i32 4, i32 4)
+  %cmp = icmp eq i32 addrspace(1)* %pnew, null
+  ret i1 %cmp
+; CHECK-LABEL: test_nonnull
+; CHECK: ret i1 false
+}
+
+define i1 @test_null() {
+entry:
+  %safepoint_token = tail call i32 (void ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()* @func, i32 0, i32 0, i32 0, i32 addrspace(1)* null)
+  %pnew = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32 %safepoint_token, i32 4, i32 4)
+  %cmp = icmp eq i32 addrspace(1)* %pnew, null
+  ret i1 %cmp
+; CHECK-LABEL: test_null
+; CHECK-NOT: %pnew
+; CHECK: ret i1 true
+}
+
+define i1 @test_undef() {
+entry:
+  %safepoint_token = tail call i32 (void ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()* @func, i32 0, i32 0, i32 0, i32 addrspace(1)* undef)
+  %pnew = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32 %safepoint_token, i32 4, i32 4)
+  %cmp = icmp eq i32 addrspace(1)* %pnew, null
+  ret i1 %cmp
+; CHECK-LABEL: test_undef
+; CHECK-NOT: %pnew
+; CHECK: ret i1 undef
+}
+
+declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()*, i32, i32, ...)
+declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32, i32, i32) #3