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diff --git a/test/CodeGen/ppc64-extend.c b/test/CodeGen/ppc64-extend.c
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+// REQUIRES: ppc64-registered-target
+// RUN: %clang_cc1 -O0 -triple powerpc64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
+
+void f1(int x) { return; }
+// CHECK: define void @f1(i32 signext %x) nounwind
+
+void f2(unsigned int x) { return; }
+// CHECK: define void @f2(i32 zeroext %x) nounwind
+
+int f3(void) { return 0; }
+// CHECK: define signext i32 @f3() nounwind
+
+unsigned int f4(void) { return 0; }
+// CHECK: define zeroext i32 @f4() nounwind
+
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