llvm/test/CodeGen/AMDGPU/amdgpu-simplify-libcall-rootn-codegen.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: opt -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -passes=amdgpu-simplifylib,instcombine < %s | llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 | FileCheck %s

; Make sure the output of fast rootn expansion actually codegens in
; scalar and vector case.

declare float @_Z5rootnfi(float, i32) #0
declare <2 x float> @_Z5rootnDv2_fDv2_i(<2 x float>, <2 x i32>) #0

define float @test_rootn_afn_f32(float %x, i32 %y) #0 {
; CHECK-LABEL: test_rootn_afn_f32:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; CHECK-NEXT:    s_mov_b32 s4, 0x800000
; CHECK-NEXT:    v_cvt_f32_i32_e32 v2, v1
; CHECK-NEXT:    v_cmp_lt_f32_e64 vcc, |v0|, s4
; CHECK-NEXT:    v_cndmask_b32_e64 v4, 0, 32, vcc
; CHECK-NEXT:    v_ldexp_f32 v4, |v0|, v4
; CHECK-NEXT:    v_log_f32_e32 v4, v4
; CHECK-NEXT:    v_rcp_iflag_f32_e32 v2, v2
; CHECK-NEXT:    v_mov_b32_e32 v3, 0x42000000
; CHECK-NEXT:    v_cndmask_b32_e32 v3, 0, v3, vcc
; CHECK-NEXT:    v_sub_f32_e32 v3, v4, v3
; CHECK-NEXT:    v_mul_f32_e32 v2, v2, v3
; CHECK-NEXT:    s_mov_b32 s4, 0xc2fc0000
; CHECK-NEXT:    v_mov_b32_e32 v3, 0x42800000
; CHECK-NEXT:    v_cmp_gt_f32_e32 vcc, s4, v2
; CHECK-NEXT:    v_cndmask_b32_e32 v3, 0, v3, vcc
; CHECK-NEXT:    v_add_f32_e32 v2, v2, v3
; CHECK-NEXT:    v_exp_f32_e32 v2, v2
; CHECK-NEXT:    v_not_b32_e32 v3, 63
; CHECK-NEXT:    v_cndmask_b32_e32 v3, 0, v3, vcc
; CHECK-NEXT:    s_movk_i32 s4, 0x204
; CHECK-NEXT:    v_ldexp_f32 v2, v2, v3
; CHECK-NEXT:    v_and_b32_e32 v3, 1, v1
; CHECK-NEXT:    v_cmp_eq_u32_e32 vcc, 0, v3
; CHECK-NEXT:    v_cndmask_b32_e64 v3, v0, 1.0, vcc
; CHECK-NEXT:    s_brev_b32 s10, -2
; CHECK-NEXT:    v_cmp_class_f32_e64 s[8:9], v0, s4
; CHECK-NEXT:    v_cmp_eq_f32_e64 s[4:5], 0, v0
; CHECK-NEXT:    v_cmp_gt_i32_e64 s[6:7], 0, v1
; CHECK-NEXT:    v_bfi_b32 v2, s10, v2, v3
; CHECK-NEXT:    v_mov_b32_e32 v3, 0x7f800000
; CHECK-NEXT:    s_xor_b64 s[6:7], s[4:5], s[6:7]
; CHECK-NEXT:    v_cndmask_b32_e64 v3, v3, 0, s[6:7]
; CHECK-NEXT:    v_cndmask_b32_e64 v4, v0, 0, vcc
; CHECK-NEXT:    v_bfi_b32 v3, s10, v3, v4
; CHECK-NEXT:    s_or_b64 s[4:5], s[8:9], s[4:5]
; CHECK-NEXT:    v_cndmask_b32_e64 v2, v2, v3, s[4:5]
; CHECK-NEXT:    v_cmp_gt_f32_e64 s[4:5], 0, v0
; CHECK-NEXT:    s_and_b64 s[4:5], s[4:5], vcc
; CHECK-NEXT:    v_cmp_eq_u32_e32 vcc, 0, v1
; CHECK-NEXT:    v_mov_b32_e32 v0, 0x7fc00000
; CHECK-NEXT:    s_or_b64 vcc, s[4:5], vcc
; CHECK-NEXT:    v_cndmask_b32_e32 v0, v2, v0, vcc
; CHECK-NEXT:    s_setpc_b64 s[30:31]
  %call = tail call afn float @_Z5rootnfi(float %x, i32 %y)
  ret float %call
}

define <2 x float> @test_rootn_afn_v2f32(<2 x float> %x, <2 x i32> %y) #0 {
; CHECK-LABEL: test_rootn_afn_v2f32:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; CHECK-NEXT:    s_mov_b32 s4, 0x800000
; CHECK-NEXT:    v_cvt_f32_i32_e32 v5, v3
; CHECK-NEXT:    v_mov_b32_e32 v6, 0x42000000
; CHECK-NEXT:    v_cmp_lt_f32_e64 vcc, |v1|, s4
; CHECK-NEXT:    v_cvt_f32_i32_e32 v4, v2
; CHECK-NEXT:    v_cndmask_b32_e32 v7, 0, v6, vcc
; CHECK-NEXT:    v_cndmask_b32_e64 v8, 0, 32, vcc
; CHECK-NEXT:    v_cmp_lt_f32_e64 vcc, |v0|, s4
; CHECK-NEXT:    v_ldexp_f32 v8, |v1|, v8
; CHECK-NEXT:    v_cndmask_b32_e64 v9, 0, 32, vcc
; CHECK-NEXT:    v_log_f32_e32 v8, v8
; CHECK-NEXT:    v_ldexp_f32 v9, |v0|, v9
; CHECK-NEXT:    v_log_f32_e32 v9, v9
; CHECK-NEXT:    v_rcp_iflag_f32_e32 v5, v5
; CHECK-NEXT:    v_rcp_iflag_f32_e32 v4, v4
; CHECK-NEXT:    v_cndmask_b32_e32 v6, 0, v6, vcc
; CHECK-NEXT:    v_sub_f32_e32 v7, v8, v7
; CHECK-NEXT:    v_sub_f32_e32 v6, v9, v6
; CHECK-NEXT:    v_mul_f32_e32 v5, v5, v7
; CHECK-NEXT:    s_mov_b32 s4, 0xc2fc0000
; CHECK-NEXT:    v_mul_f32_e32 v4, v4, v6
; CHECK-NEXT:    v_mov_b32_e32 v6, 0x42800000
; CHECK-NEXT:    v_cmp_gt_f32_e32 vcc, s4, v5
; CHECK-NEXT:    v_cndmask_b32_e32 v7, 0, v6, vcc
; CHECK-NEXT:    v_cmp_gt_f32_e64 s[4:5], s4, v4
; CHECK-NEXT:    v_add_f32_e32 v5, v5, v7
; CHECK-NEXT:    v_cndmask_b32_e64 v6, 0, v6, s[4:5]
; CHECK-NEXT:    v_exp_f32_e32 v5, v5
; CHECK-NEXT:    v_add_f32_e32 v4, v4, v6
; CHECK-NEXT:    v_exp_f32_e32 v4, v4
; CHECK-NEXT:    v_not_b32_e32 v7, 63
; CHECK-NEXT:    v_cndmask_b32_e32 v6, 0, v7, vcc
; CHECK-NEXT:    v_ldexp_f32 v5, v5, v6
; CHECK-NEXT:    v_cndmask_b32_e64 v6, 0, v7, s[4:5]
; CHECK-NEXT:    v_ldexp_f32 v4, v4, v6
; CHECK-NEXT:    v_and_b32_e32 v6, 1, v3
; CHECK-NEXT:    v_cmp_eq_u32_e32 vcc, 0, v6
; CHECK-NEXT:    v_and_b32_e32 v7, 1, v2
; CHECK-NEXT:    v_cndmask_b32_e64 v6, v1, 1.0, vcc
; CHECK-NEXT:    s_brev_b32 s18, -2
; CHECK-NEXT:    v_cmp_eq_u32_e64 s[4:5], 0, v7
; CHECK-NEXT:    v_bfi_b32 v5, s18, v5, v6
; CHECK-NEXT:    v_mov_b32_e32 v6, 0x204
; CHECK-NEXT:    v_cmp_eq_f32_e64 s[10:11], 0, v1
; CHECK-NEXT:    v_cmp_gt_i32_e64 s[14:15], 0, v3
; CHECK-NEXT:    v_cndmask_b32_e64 v7, v0, 1.0, s[4:5]
; CHECK-NEXT:    v_cmp_class_f32_e64 s[6:7], v1, v6
; CHECK-NEXT:    v_cmp_class_f32_e64 s[8:9], v0, v6
; CHECK-NEXT:    v_cmp_eq_f32_e64 s[12:13], 0, v0
; CHECK-NEXT:    v_cmp_gt_i32_e64 s[16:17], 0, v2
; CHECK-NEXT:    v_mov_b32_e32 v6, 0x7f800000
; CHECK-NEXT:    s_xor_b64 s[14:15], s[10:11], s[14:15]
; CHECK-NEXT:    v_bfi_b32 v4, s18, v4, v7
; CHECK-NEXT:    v_cndmask_b32_e64 v7, v6, 0, s[14:15]
; CHECK-NEXT:    s_xor_b64 s[14:15], s[12:13], s[16:17]
; CHECK-NEXT:    v_cndmask_b32_e64 v8, v1, 0, vcc
; CHECK-NEXT:    v_cndmask_b32_e64 v6, v6, 0, s[14:15]
; CHECK-NEXT:    v_cndmask_b32_e64 v9, v0, 0, s[4:5]
; CHECK-NEXT:    v_bfi_b32 v7, s18, v7, v8
; CHECK-NEXT:    s_or_b64 s[6:7], s[6:7], s[10:11]
; CHECK-NEXT:    v_bfi_b32 v6, s18, v6, v9
; CHECK-NEXT:    v_cndmask_b32_e64 v5, v5, v7, s[6:7]
; CHECK-NEXT:    s_or_b64 s[6:7], s[8:9], s[12:13]
; CHECK-NEXT:    v_cndmask_b32_e64 v4, v4, v6, s[6:7]
; CHECK-NEXT:    v_cmp_gt_f32_e64 s[6:7], 0, v1
; CHECK-NEXT:    v_cmp_gt_f32_e64 s[8:9], 0, v0
; CHECK-NEXT:    s_and_b64 s[8:9], s[8:9], s[4:5]
; CHECK-NEXT:    s_and_b64 s[6:7], s[6:7], vcc
; CHECK-NEXT:    v_cmp_eq_u32_e32 vcc, 0, v2
; CHECK-NEXT:    v_cmp_eq_u32_e64 s[4:5], 0, v3
; CHECK-NEXT:    v_mov_b32_e32 v1, 0x7fc00000
; CHECK-NEXT:    s_or_b64 vcc, s[8:9], vcc
; CHECK-NEXT:    v_cndmask_b32_e32 v0, v4, v1, vcc
; CHECK-NEXT:    s_or_b64 vcc, s[6:7], s[4:5]
; CHECK-NEXT:    v_cndmask_b32_e32 v1, v5, v1, vcc
; CHECK-NEXT:    s_setpc_b64 s[30:31]
  %call = tail call afn <2 x float> @_Z5rootnDv2_fDv2_i(<2 x float> %x, <2 x i32> %y)
  ret <2 x float> %call
}

attributes #0 = { nounwind }