1 ; RUN: llc -march=x86-64 -mattr=-fma4 -mtriple=x86_64-apple-darwin -enable-unsafe-fp-math < %s | FileCheck %s 2 3 ; CHECK: test1 4 define float @test1(float %a) { 5 ; CHECK-NOT: addss 6 ; CHECK: mulss 7 ; CHECK-NOT: addss 8 ; CHECK: ret 9 %t1 = fadd float %a, %a 10 %r = fadd float %t1, %t1 11 ret float %r 12 } 13 14 ; CHECK: test2 15 define float @test2(float %a) { 16 ; CHECK-NOT: addss 17 ; CHECK: mulss 18 ; CHECK-NOT: addss 19 ; CHECK: ret 20 %t1 = fmul float 4.0, %a 21 %t2 = fadd float %a, %a 22 %r = fadd float %t1, %t2 23 ret float %r 24 } 25 26 ; CHECK: test3 27 define float @test3(float %a) { 28 ; CHECK-NOT: addss 29 ; CHECK: xorps 30 ; CHECK-NOT: addss 31 ; CHECK: ret 32 %t1 = fmul float 2.0, %a 33 %t2 = fadd float %a, %a 34 %r = fsub float %t1, %t2 35 ret float %r 36 } 37 38
