llvm/llvm/test/CodeGen/AMDGPU/amdgpu-mul24-knownbits.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck --check-prefix=GCN %s
; RUN: llc -mtriple amdgcn-amd-amdhsa -mcpu=gfx900 -early-live-intervals -verify-machineinstrs < %s | FileCheck --check-prefix=GCN %s

define weak_odr amdgpu_kernel void @test_mul24_knownbits_kernel(ptr addrspace(1) %p) #4 {
; GCN-LABEL: test_mul24_knownbits_kernel:
; GCN:       ; %bb.0: ; %entry
; GCN-NEXT:    v_and_b32_e32 v0, 3, v0
; GCN-NEXT:    s_load_dwordx2 s[0:1], s[6:7], 0x0
; GCN-NEXT:    v_mul_i32_i24_e32 v0, -5, v0
; GCN-NEXT:    v_and_b32_e32 v0, 0xffffffe0, v0
; GCN-NEXT:    v_ashrrev_i32_e32 v1, 31, v0
; GCN-NEXT:    v_lshlrev_b64 v[0:1], 2, v[0:1]
; GCN-NEXT:    s_waitcnt lgkmcnt(0)
; GCN-NEXT:    v_mov_b32_e32 v2, s1
; GCN-NEXT:    v_add_co_u32_e32 v0, vcc, s0, v0
; GCN-NEXT:    v_addc_co_u32_e32 v1, vcc, v2, v1, vcc
; GCN-NEXT:    v_mov_b32_e32 v2, 0
; GCN-NEXT:    global_store_dword v[0:1], v2, off
; GCN-NEXT:    s_endpgm
entry:
  %0 = tail call i32 @llvm.amdgcn.workitem.id.x() #28, !range !4
  %tid = and i32 %0, 3
  %1 = mul nsw i32 %tid, -5
  %v1 = and i32 %1, -32
  %v2 = sext i32 %v1 to i64
  %v3 = getelementptr inbounds float, ptr addrspace(1) %p, i64 %v2
  store float 0.000, ptr addrspace(1) %v3, align 4
  ret void
}

define i32 @f(i32 %x, i32 %y) {
; GCN-LABEL: f:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    v_or_b32_e32 v0, 0xffff80, v0
; GCN-NEXT:    v_or_b32_e32 v1, 0xffff80, v1
; GCN-NEXT:    v_mul_i32_i24_e32 v0, v0, v1
; GCN-NEXT:    v_lshrrev_b32_e32 v0, 14, v0
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %xx = or i32 %x, -128 ; 0xffffff80
  %yy = or i32 %y, -128 ; 0xffffff80
  %r = mul i32 %xx, %yy
  %rr = lshr i32 %r, 14
  ret i32 %rr
}

; Function Attrs: nounwind readnone speculatable
declare i32 @llvm.amdgcn.workitem.id.x() #20

!4 = !{i32 0, i32 1024}