Lower multiply-negate operation to mneg on AArch64

[oota-llvm.git] / test / CodeGen / AArch64 / dp-3source.ll

diff --git a/test/CodeGen/AArch64/dp-3source.ll b/test/CodeGen/AArch64/dp-3source.ll
index 22bd4a844e1a04e9536bce70162935f33b0a5f38..bd96ec728f52d32450f064f00d70b4e77567e386 100644 (file)
--- a/test/CodeGen/AArch64/dp-3source.ll
+++ b/test/CodeGen/AArch64/dp-3source.ll
@@ -161,3 +161,18 @@ define i64 @test_umnegl(i32 %lhs, i32 %rhs) {
 ; CHECK: umnegl {{x[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
   ret i64 %res
 }
 ; CHECK: umnegl {{x[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
   ret i64 %res
 }

+
+@a = common global i32 0, align 4
+@b = common global i32 0, align 4
+@c = common global i32 0, align 4
+
+define void @test_mneg(){
+; CHECK-LABEL: test_mneg:
+  %1 = load i32* @a, align 4
+  %2 = load i32* @b, align 4
+  %3 = sub i32 0, %1
+  %4 = mul i32 %2, %3
+  store i32 %4, i32* @c, align 4
+; CHECK: mneg {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
+  ret void
+}