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_mul24 6 ; Signed 24-bit multiply is not supported on pre-Cayman GPUs. 7 ; EG: MULLO_INT 8 ; Make sure we are not masking the inputs 9 ; CM-NOT: AND 10 ; CM: MUL_INT24 11 ; SI-NOT: AND 12 ; SI: V_MUL_I32_I24 13 define void @i32_mul24(i32 addrspace(1)* %out, i32 %a, i32 %b) { 14 entry: 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 store i32 %2, i32 addrspace(1)* %out 21 ret void 22 } 23
