llvm/test/CodeGen/AMDGPU/amdgpu-simplify-demanded-bits-for-target-node.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck -check-prefix=GCN %s

define void @readfirstlane_demanded_i8_zext_store(i8 %src, ptr addrspace(1) %ptr) nounwind {
; GCN-LABEL: readfirstlane_demanded_i8_zext_store:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    v_readfirstlane_b32 s4, v0
; GCN-NEXT:    v_mov_b32_e32 v0, s4
; GCN-NEXT:    global_store_byte v[1:2], v0, off
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %zext = zext i8 %src to i32
  %readfirstlane = call i32 @llvm.amdgcn.readfirstlane.i32(i32 %zext)
  %trunc = trunc i32 %readfirstlane to i8
  store i8 %trunc, ptr addrspace(1) %ptr
  ret void
}

define void @readfirstlane_demanded_i8_sext_store(i8 %src, ptr addrspace(1) %ptr) nounwind {
; GCN-LABEL: readfirstlane_demanded_i8_sext_store:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    v_readfirstlane_b32 s4, v0
; GCN-NEXT:    v_mov_b32_e32 v0, s4
; GCN-NEXT:    global_store_byte v[1:2], v0, off
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %sext = sext i8 %src to i32
  %readfirstlane = call i32 @llvm.amdgcn.readfirstlane.i32(i32 %sext)
  %trunc = trunc i32 %readfirstlane to i8
  store i8 %trunc, ptr addrspace(1) %ptr
  ret void
}

define i16 @readfirstlane_demanded_i16_zext(i16 %src) nounwind {
; GCN-LABEL: readfirstlane_demanded_i16_zext:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    v_readfirstlane_b32 s4, v0
; GCN-NEXT:    v_mov_b32_e32 v0, s4
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %zext = zext i16 %src to i32
  %readfirstlane = call i32 @llvm.amdgcn.readfirstlane.i32(i32 %zext)
  %trunc = trunc i32 %readfirstlane to i16
  ret i16 %trunc
}

define i16 @readfirstlane_demanded_i16_sext(i16 %src) nounwind {
; GCN-LABEL: readfirstlane_demanded_i16_sext:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    v_readfirstlane_b32 s4, v0
; GCN-NEXT:    v_mov_b32_e32 v0, s4
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %sext = sext i16 %src to i32
  %readfirstlane = call i32 @llvm.amdgcn.readfirstlane.i32(i32 %sext)
  %trunc = trunc i32 %readfirstlane to i16
  ret i16 %trunc
}

define void @readlane_demanded_i8_zext_store(i8 %src, ptr addrspace(1) %ptr) nounwind {
; GCN-LABEL: readlane_demanded_i8_zext_store:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    v_readlane_b32 s4, v0, 0
; GCN-NEXT:    v_mov_b32_e32 v0, s4
; GCN-NEXT:    global_store_byte v[1:2], v0, off
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %zext = zext i8 %src to i32
  %readlane = call i32 @llvm.amdgcn.readlane.i32(i32 %zext, i32 0)
  %trunc = trunc i32 %readlane to i8
  store i8 %trunc, ptr addrspace(1) %ptr
  ret void
}

define void @readlane_demanded_i8_sext_store(i8 %src, ptr addrspace(1) %ptr) nounwind {
; GCN-LABEL: readlane_demanded_i8_sext_store:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    v_readlane_b32 s4, v0, 0
; GCN-NEXT:    v_mov_b32_e32 v0, s4
; GCN-NEXT:    global_store_byte v[1:2], v0, off
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %sext = sext i8 %src to i32
  %readlane = call i32 @llvm.amdgcn.readlane.i32(i32 %sext, i32 0)
  %trunc = trunc i32 %readlane to i8
  store i8 %trunc, ptr addrspace(1) %ptr
  ret void
}

define i16 @readlane_demanded_i16_zext(i16 %src) nounwind {
; GCN-LABEL: readlane_demanded_i16_zext:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    v_readlane_b32 s4, v0, 0
; GCN-NEXT:    v_mov_b32_e32 v0, s4
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %zext = zext i16 %src to i32
  %readlane = call i32 @llvm.amdgcn.readlane.i32(i32 %zext, i32 0)
  %trunc = trunc i32 %readlane to i16
  ret i16 %trunc
}

define i16 @readlane_demanded_i16_sext(i16 %src) nounwind {
; GCN-LABEL: readlane_demanded_i16_sext:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    v_readlane_b32 s4, v0, 0
; GCN-NEXT:    v_mov_b32_e32 v0, s4
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %sext = sext i16 %src to i32
  %readlane = call i32 @llvm.amdgcn.readlane.i32(i32 %sext, i32 0)
  %trunc = trunc i32 %readlane to i16
  ret i16 %trunc
}

define void @wwm_demanded_i8_zext_store(i8 %src, ptr addrspace(1) %ptr) nounwind {
; GCN-LABEL: wwm_demanded_i8_zext_store:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    s_xor_saveexec_b64 s[4:5], -1
; GCN-NEXT:    buffer_store_dword v3, off, s[0:3], s32 ; 4-byte Folded Spill
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    s_or_saveexec_b64 s[4:5], -1
; GCN-NEXT:    v_mov_b32_e32 v3, v0
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    v_mov_b32_e32 v0, v3
; GCN-NEXT:    global_store_byte v[1:2], v0, off
; GCN-NEXT:    s_xor_saveexec_b64 s[4:5], -1
; GCN-NEXT:    buffer_load_dword v3, off, s[0:3], s32 ; 4-byte Folded Reload
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %zext = zext i8 %src to i32
  %wwm = call i32 @llvm.amdgcn.wwm(i32 %zext)
  %trunc = trunc i32 %wwm to i8
  store i8 %trunc, ptr addrspace(1) %ptr
  ret void
}

define void @wwm_demanded_i8_sext_store(i8 %src, ptr addrspace(1) %ptr) nounwind {
; GCN-LABEL: wwm_demanded_i8_sext_store:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    s_xor_saveexec_b64 s[4:5], -1
; GCN-NEXT:    buffer_store_dword v3, off, s[0:3], s32 ; 4-byte Folded Spill
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    s_or_saveexec_b64 s[4:5], -1
; GCN-NEXT:    v_mov_b32_e32 v3, v0
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    v_mov_b32_e32 v0, v3
; GCN-NEXT:    global_store_byte v[1:2], v0, off
; GCN-NEXT:    s_xor_saveexec_b64 s[4:5], -1
; GCN-NEXT:    buffer_load_dword v3, off, s[0:3], s32 ; 4-byte Folded Reload
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %sext = sext i8 %src to i32
  %wwm = call i32 @llvm.amdgcn.wwm(i32 %sext)
  %trunc = trunc i32 %wwm to i8
  store i8 %trunc, ptr addrspace(1) %ptr
  ret void
}

define i16 @wwm_demanded_i16_zext(i16 %src) nounwind {
; GCN-LABEL: wwm_demanded_i16_zext:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    s_xor_saveexec_b64 s[4:5], -1
; GCN-NEXT:    buffer_store_dword v1, off, s[0:3], s32 ; 4-byte Folded Spill
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    s_or_saveexec_b64 s[4:5], -1
; GCN-NEXT:    v_mov_b32_e32 v1, v0
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    v_mov_b32_e32 v0, v1
; GCN-NEXT:    s_xor_saveexec_b64 s[4:5], -1
; GCN-NEXT:    buffer_load_dword v1, off, s[0:3], s32 ; 4-byte Folded Reload
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %zext = zext i16 %src to i32
  %wwm = call i32 @llvm.amdgcn.wwm(i32 %zext)
  %trunc = trunc i32 %wwm to i16
  ret i16 %trunc
}

define i16 @wwm_demanded_i16_sext(i16 %src) nounwind {
; GCN-LABEL: wwm_demanded_i16_sext:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    s_xor_saveexec_b64 s[4:5], -1
; GCN-NEXT:    buffer_store_dword v1, off, s[0:3], s32 ; 4-byte Folded Spill
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    s_or_saveexec_b64 s[4:5], -1
; GCN-NEXT:    v_mov_b32_e32 v1, v0
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    v_mov_b32_e32 v0, v1
; GCN-NEXT:    s_xor_saveexec_b64 s[4:5], -1
; GCN-NEXT:    buffer_load_dword v1, off, s[0:3], s32 ; 4-byte Folded Reload
; GCN-NEXT:    s_mov_b64 exec, s[4:5]
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %sext = sext i16 %src to i32
  %wwm = call i32 @llvm.amdgcn.wwm(i32 %sext)
  %trunc = trunc i32 %wwm to i16
  ret i16 %trunc
}

define void @set.inactive_demanded_i8_zext_store(i8 %src, ptr addrspace(1) %ptr) nounwind {
; GCN-LABEL: set.inactive_demanded_i8_zext_store:
; GCN:       ; %bb.0:
; GCN-NEXT:    ; kill: def $vgpr0 killed $vgpr0 killed $exec
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    global_store_byte v[1:2], v0, off
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %zext = zext i8 %src to i32
  %set.inactive = call i32 @llvm.amdgcn.set.inactive.i32(i32 %zext, i32 0)
  %trunc = trunc i32 %set.inactive to i8
  store i8 %trunc, ptr addrspace(1) %ptr
  ret void
}

define void @set.inactive_demanded_i8_sext_store(i8 %src, ptr addrspace(1) %ptr) nounwind {
; GCN-LABEL: set.inactive_demanded_i8_sext_store:
; GCN:       ; %bb.0:
; GCN-NEXT:    ; kill: def $vgpr0 killed $vgpr0 killed $exec
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    global_store_byte v[1:2], v0, off
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %sext = sext i8 %src to i32
  %set.inactive = call i32 @llvm.amdgcn.set.inactive.i32(i32 %sext, i32 0)
  %trunc = trunc i32 %set.inactive to i8
  store i8 %trunc, ptr addrspace(1) %ptr
  ret void
}

define i16 @set.inactive_demanded_i16_zext(i16 %src) nounwind {
; GCN-LABEL: set.inactive_demanded_i16_zext:
; GCN:       ; %bb.0:
; GCN-NEXT:    ; kill: def $vgpr0 killed $vgpr0 killed $exec
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %zext = zext i16 %src to i32
  %set.inactive = call i32 @llvm.amdgcn.set.inactive.i32(i32 %zext, i32 0)
  %trunc = trunc i32 %set.inactive to i16
  ret i16 %trunc
}

define i16 @set.inactive_demanded_i16_sext(i16 %src) nounwind {
; GCN-LABEL: set.inactive_demanded_i16_sext:
; GCN:       ; %bb.0:
; GCN-NEXT:    ; kill: def $vgpr0 killed $vgpr0 killed $exec
; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT:    s_setpc_b64 s[30:31]
  %sext = sext i16 %src to i32
  %set.inactive = call i32 @llvm.amdgcn.set.inactive.i32(i32 %sext, i32 0)
  %trunc = trunc i32 %set.inactive to i16
  ret i16 %trunc
}