1; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=EG --check-prefix=FUNC 2; RUN: llc < %s -march=r600 -mcpu=cayman | FileCheck %s --check-prefix=CM --check-prefix=FUNC 3; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC 4 5; FUNC-LABEL: @i32_mad24 6; Signed 24-bit multiply is not supported on pre-Cayman GPUs. 7; EG: MULLO_INT 8; Make sure we aren't masking the inputs. 9; CM-NOT: AND 10; CM: MULADD_INT24 11; SI-NOT: AND 12; SI: V_MAD_I32_I24 13define void @i32_mad24(i32 addrspace(1)* %out, i32 %a, i32 %b, i32 %c) { 14entry: 15 %0 = shl i32 %a, 8 16 %a_24 = ashr i32 %0, 8 17 %1 = shl i32 %b, 8 18 %b_24 = ashr i32 %1, 8 19 %2 = mul i32 %a_24, %b_24 20 %3 = add i32 %2, %c 21 store i32 %3, i32 addrspace(1)* %out 22 ret void 23} 24