; RUN: llc < %s -mtriple=x86_64-linux -mcpu=nehalem | FileCheck %s ; CHECK-NOT: mov ; CHECK: paddw ; CHECK-NOT: mov ; CHECK: paddw ; CHECK-NOT: paddw ; CHECK-NOT: mov ; The 2-addr pass should ensure that identical code is produced for these functions ; no extra copy should be generated. define <2 x i64> @test1(<2 x i64> %x, <2 x i64> %y) nounwind { entry: %tmp6 = bitcast <2 x i64> %y to <8 x i16> ; <<8 x i16>> [#uses=1] %tmp8 = bitcast <2 x i64> %x to <8 x i16> ; <<8 x i16>> [#uses=1] %tmp9 = add <8 x i16> %tmp8, %tmp6 ; <<8 x i16>> [#uses=1] %tmp10 = bitcast <8 x i16> %tmp9 to <2 x i64> ; <<2 x i64>> [#uses=1] ret <2 x i64> %tmp10 } define <2 x i64> @test2(<2 x i64> %x, <2 x i64> %y) nounwind { entry: %tmp6 = bitcast <2 x i64> %x to <8 x i16> ; <<8 x i16>> [#uses=1] %tmp8 = bitcast <2 x i64> %y to <8 x i16> ; <<8 x i16>> [#uses=1] %tmp9 = add <8 x i16> %tmp8, %tmp6 ; <<8 x i16>> [#uses=1] %tmp10 = bitcast <8 x i16> %tmp9 to <2 x i64> ; <<2 x i64>> [#uses=1] ret <2 x i64> %tmp10 }