1 ; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=EG-CHECK 2 ; RUN: llc < %s -march=r600 -mcpu=cayman | FileCheck %s --check-prefix=CM-CHECK 3 ; RUN: llc < %s -march=r600 -mcpu=SI | FileCheck %s --check-prefix=SI-CHECK 4 5 ; EG-CHECK: @i32_mad24 6 ; Signed 24-bit multiply is not supported on pre-Cayman GPUs. 7 ; EG-CHECK: MULLO_INT 8 ; CM-CHECK: MULADD_INT24 {{[ *]*}}T{{[0-9].[XYZW]}}, KC0[2].Z, KC0[2].W, KC0[3].X 9 ; SI-CHECK: V_MAD_I32_I24 10 define void @i32_mad24(i32 addrspace(1)* %out, i32 %a, i32 %b, i32 %c) { 11 entry: 12 %0 = shl i32 %a, 8 13 %a_24 = ashr i32 %0, 8 14 %1 = shl i32 %b, 8 15 %b_24 = ashr i32 %1, 8 16 %2 = mul i32 %a_24, %b_24 17 %3 = add i32 %2, %c 18 store i32 %3, i32 addrspace(1)* %out 19 ret void 20 } 21
