| Tom Stellard | c54731a | 2013-07-23 23:55:03 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=R600-CHECK |
| 2 | ; RUN: llc < %s -march=r600 -mcpu=SI | FileCheck %s --check-prefix=SI-CHECK |
| Tom Stellard | 75aadc2 | 2012-12-11 21:25:42 +0000 | [diff] [blame] | 3 | |
| Tom Stellard | c54731a | 2013-07-23 23:55:03 +0000 | [diff] [blame^] | 4 | ; DAGCombiner will transform: |
| 5 | ; (fabs (f32 bitcast (i32 a))) => (f32 bitcast (and (i32 a), 0x7FFFFFFF)) |
| 6 | ; unless isFabsFree returns true |
| Tom Stellard | 75aadc2 | 2012-12-11 21:25:42 +0000 | [diff] [blame] | 7 | |
| Tom Stellard | c54731a | 2013-07-23 23:55:03 +0000 | [diff] [blame^] | 8 | ; R600-CHECK: @fabs_free |
| 9 | ; R600-CHECK-NOT: AND |
| 10 | ; R600-CHECK: |PV.{{[XYZW]}}| |
| 11 | ; SI-CHECK: @fabs_free |
| 12 | ; SI-CHECK: V_ADD_F32_e64 VGPR{{[0-9]}}, SGPR{{[0-9]}}, 0, 1, 0, 0, 0 |
| 13 | |
| 14 | define void @fabs_free(float addrspace(1)* %out, i32 %in) { |
| 15 | entry: |
| 16 | %0 = bitcast i32 %in to float |
| 17 | %1 = call float @fabs(float %0) |
| 18 | store float %1, float addrspace(1)* %out |
| 19 | ret void |
| Tom Stellard | 75aadc2 | 2012-12-11 21:25:42 +0000 | [diff] [blame] | 20 | } |
| 21 | |
| Tom Stellard | 75aadc2 | 2012-12-11 21:25:42 +0000 | [diff] [blame] | 22 | declare float @fabs(float ) readnone |