1 files changed, 12 insertions, 0 deletions
diff --git a/test/CodeGen/X86/wide-integer-fold.ll b/test/CodeGen/X86/wide-integer-fold.ll
new file mode 100644
index 0000000..b3b4d24
--- /dev/null
+++ b/test/CodeGen/X86/wide-integer-fold.ll
@@ -0,0 +1,12 @@
+; RUN: llc < %s -march=x86-64 | FileCheck %s
+; CHECK:  movq  $-65535, %rax
+
+; DAGCombiner should fold this to a simple constant.
+
+define i64 @foo(i192 %a) nounwind {
+  %t = or i192 %a, -22300404916163702203072254898040925442801665
+  %s = and i192 %t, -22300404916163702203072254898040929737768960
+  %u = lshr i192 %s, 128
+  %v = trunc i192 %u to i64
+  ret i64 %v
+}