1 files changed, 18 insertions, 0 deletions
diff --git a/test/CodeGen/X86/setcc-narrowing.ll b/test/CodeGen/X86/setcc-narrowing.ll
new file mode 100644
index 0000000..25cb2c8
--- /dev/null
+++ b/test/CodeGen/X86/setcc-narrowing.ll
@@ -0,0 +1,18 @@
+; RUN: llc < %s -mtriple=i686-apple-darwin | FileCheck %s
+; PR17338
+
+@t1.global = internal global i64 -1, align 8
+
+define i32 @t1() nounwind ssp {
+entry:
+; CHECK-LABEL: t1:
+; CHECK: cmpl	$0, _t1.global
+; CHECK-NEXT: setne %al
+; CHECK-NEXT: movzbl %al, %eax
+; CHECK-NEXT: ret
+  %0 = load i64* @t1.global, align 8
+  %and = and i64 4294967295, %0
+  %cmp = icmp sgt i64 %and, 0
+  %conv = zext i1 %cmp to i32
+  ret i32 %conv
+}