1; RUN: opt < %s -passes=reassociate -S | FileCheck %s 2 3define <4 x float> @test1() { 4; CHECK-LABEL: test1 5; CHECK-NEXT: %tmp1 = fsub <4 x float> zeroinitializer, zeroinitializer 6; CHECK-NEXT: %tmp2 = fmul <4 x float> %tmp1, zeroinitializer 7; CHECK-NEXT: ret <4 x float> %tmp2 8 9 %tmp1 = fsub <4 x float> zeroinitializer, zeroinitializer 10 %tmp2 = fmul <4 x float> zeroinitializer, %tmp1 11 ret <4 x float> %tmp2 12} 13