llvm-6502/test/CodeGen/R600/mul_int24.ll

; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=EG --check-prefix=FUNC
; RUN: llc < %s -march=r600 -mcpu=cayman | FileCheck %s --check-prefix=CM --check-prefix=FUNC
; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC

; FUNC-LABEL: @i32_mul24
; Signed 24-bit multiply is not supported on pre-Cayman GPUs.
; EG: MULLO_INT
; Make sure we are not masking the inputs
; CM-NOT: AND
; CM: MUL_INT24
; SI-NOT: AND
; SI: V_MUL_I32_I24
define void @i32_mul24(i32 addrspace(1)* %out, i32 %a, i32 %b) {
entry:
  %0 = shl i32 %a, 8
  %a_24 = ashr i32 %0, 8
  %1 = shl i32 %b, 8
  %b_24 = ashr i32 %1, 8
  %2 = mul i32 %a_24, %b_24
  store i32 %2, i32 addrspace(1)* %out
  ret void
}