1 ; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s 2 3 ; CHECK: @fneg_v2 4 ; CHECK: -PV 5 ; CHECK: -PV 6 define void @fneg_v2(<2 x float> addrspace(1)* nocapture %out, <2 x float> %in) { 7 entry: 8 %0 = fsub <2 x float> <float -0.000000e+00, float -0.000000e+00>, %in 9 store <2 x float> %0, <2 x float> addrspace(1)* %out 10 ret void 11 } 12 13 ; CHECK: @fneg_v4 14 ; CHECK: -PV 15 ; CHECK: -PV 16 ; CHECK: -PV 17 ; CHECK: -PV 18 define void @fneg_v4(<4 x float> addrspace(1)* nocapture %out, <4 x float> %in) { 19 entry: 20 %0 = fsub <4 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %in 21 store <4 x float> %0, <4 x float> addrspace(1)* %out 22 ret void 23 } 24 25 ; DAGCombiner will transform: 26 ; (fneg (f32 bitcast (i32 a))) => (f32 bitcast (xor (i32 a), 0x80000000)) 27 ; unless the target returns true for isNegFree() 28 29 ; CHECK-NOT: XOR 30 ; CHECK: -KC0[2].Z 31 32 define void @fneg_free(float addrspace(1)* %out, i32 %in) { 33 entry: 34 %0 = bitcast i32 %in to float 35 %1 = fsub float 0.0, %0 36 store float %1, float addrspace(1)* %out 37 ret void 38 } 39
