test/CodeGen/ARM/zero-cycle-zero.ll

   1 ; RUN: llc -mtriple=armv8 -mcpu=cyclone < %s | FileCheck %s --check-prefix=CHECK-CYCLONE
   2 ; RUN: llc -mtriple=armv8 -mcpu=swift < %s | FileCheck %s --check-prefix=CHECK-SWIFT
   3
   4 declare arm_aapcs_vfpcc void @take_vec64(<2 x i32>)
   5
   6 define void @test_vec64() {
   7 ; CHECK-CYCLONE-LABEL: test_vec64:
   8 ; CHECK-SWIFT-LABEL: test_vec64:
   9
  10   call arm_aapcs_vfpcc void @take_vec64(<2 x i32> <i32 0, i32 0>)
  11   call arm_aapcs_vfpcc void @take_vec64(<2 x i32> <i32 0, i32 0>)
  12 ; CHECK-CYCLONE-NOT: vmov.f64 d0,
  13 ; CHECK-CYCLONE: vmov.i32 d0, #0
  14 ; CHECK-CYCLONE: bl
  15 ; CHECK-CYCLONE: vmov.i32 d0, #0
  16 ; CHECK-CYCLONE: bl
  17
  18 ; CHECK-SWIFT: vmov.f64 [[ZEROREG:d[0-9]+]],
  19 ; CHECK-SWIFT: vmov.i32 [[ZEROREG]], #0
  20 ; CHECK-SWIFT: vorr d0, [[ZEROREG]], [[ZEROREG]]
  21 ; CHECK-SWIFT: bl
  22 ; CHECK-SWIFT: vorr d0, [[ZEROREG]], [[ZEROREG]]
  23 ; CHECK-SWIFT: bl
  24
  25   ret void
  26 }
  27
  28 declare arm_aapcs_vfpcc void @take_vec128(<8 x i16>)
  29
  30 define void @test_vec128() {
  31 ; CHECK-CYCLONE-LABEL: test_vec128:
  32 ; CHECK-SWIFT-LABEL: test_vec128:
  33
  34   call arm_aapcs_vfpcc void @take_vec128(<8 x i16> <i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>)
  35   call arm_aapcs_vfpcc void @take_vec128(<8 x i16> <i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>)
  36 ; CHECK-CYCLONE-NOT: vmov.f64 [[ZEROREG:d[0-9]+]],
  37 ; CHECK-CYCLONE: vmov.i32 q0, #0
  38 ; CHECK-CYCLONE: bl
  39 ; CHECK-CYCLONE: vmov.i32 q0, #0
  40 ; CHECK-CYCLONE: bl
  41
  42 ; CHECK-SWIFT-NOT: vmov.f64 [[ZEROREG:d[0-9]+]],
  43 ; CHECK-SWIFT: vmov.i32 [[ZEROREG:q[0-9]+]], #0
  44 ; CHECK-SWIFT: vorr q0, [[ZEROREG]], [[ZEROREG]]
  45 ; CHECK-SWIFT: bl
  46 ; CHECK-SWIFT: vorr q0, [[ZEROREG]], [[ZEROREG]]
  47 ; CHECK-SWIFT: bl
  48
  49   ret void
  50 }
  51
  52 declare void @take_i32(i32)
  53
  54 define void @test_i32() {
  55 ; CHECK-CYCLONE-LABEL: test_i32:
  56 ; CHECK-SWIFT-LABEL: test_i32:
  57
  58   call arm_aapcs_vfpcc void @take_i32(i32 0)
  59   call arm_aapcs_vfpcc void @take_i32(i32 0)
  60 ; CHECK-CYCLONE-NOT: vmov.f64 [[ZEROREG:d[0-9]+]],
  61 ; CHECK-CYCLONE: mov r0, #0
  62 ; CHECK-CYCLONE: bl
  63 ; CHECK-CYCLONE: mov r0, #0
  64 ; CHECK-CYCLONE: bl
  65
  66 ; It doesn't particularly matter what Swift does here, there isn't carefully
  67 ; crafted behaviour that we might break in Cyclone.
  68
  69   ret void
  70 }