llvm/test/CodeGen/AMDGPU/cgp-addressing-modes-flat.ll

; RUN: opt -S -codegenprepare -mtriple=amdgcn-unknown-unknown -mcpu=bonaire < %s | FileCheck -check-prefix=OPT -check-prefix=OPT-CI %s
; RUN: opt -S -codegenprepare -mtriple=amdgcn-unknown-unknown -mcpu=tonga -mattr=-flat-for-global < %s | FileCheck -check-prefix=OPT -check-prefix=OPT-VI %s
; RUN: llc -march=amdgcn -mcpu=bonaire -mattr=-promote-alloca < %s | FileCheck -check-prefix=GCN -check-prefix=CI %s
; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -mattr=-promote-alloca < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s

; OPT-LABEL: @test_no_sink_flat_small_offset_i32(
; OPT: getelementptr i32, i32 addrspace(4)* %in
; OPT: br i1
; OPT-NOT: ptrtoint

; GCN-LABEL: {{^}}test_no_sink_flat_small_offset_i32:
; GCN: flat_load_dword
; GCN: {{^}}BB0_2:
define amdgpu_kernel void @test_no_sink_flat_small_offset_i32(i32 addrspace(4)* %out, i32 addrspace(4)* %in, i32 %cond) {
entry:
  %out.gep = getelementptr i32, i32 addrspace(4)* %out, i64 999999
  %in.gep = getelementptr i32, i32 addrspace(4)* %in, i64 7
  %tmp0 = icmp eq i32 %cond, 0
  br i1 %tmp0, label %endif, label %if

if:
  %tmp1 = load i32, i32 addrspace(4)* %in.gep
  br label %endif

endif:
  %x = phi i32 [ %tmp1, %if ], [ 0, %entry ]
  store i32 %x, i32 addrspace(4)* %out.gep
  br label %done

done:
  ret void
}

; OPT-LABEL: @test_sink_noop_addrspacecast_flat_to_global_i32(
; OPT: getelementptr i32, i32 addrspace(4)* %out,
; OPT-CI-NOT: getelementptr
; OPT: br i1

; OPT-CI: ptrtoint
; OPT-CI: add
; OPT-CI: inttoptr
; OPT: br label

; GCN-LABEL: {{^}}test_sink_noop_addrspacecast_flat_to_global_i32:
; CI: buffer_load_dword {{v[0-9]+}}, off, s{{\[[0-9]+:[0-9]+\]}}, 0 offset:28
define amdgpu_kernel void @test_sink_noop_addrspacecast_flat_to_global_i32(i32 addrspace(4)* %out, i32 addrspace(4)* %in, i32 %cond) {
entry:
  %out.gep = getelementptr i32, i32 addrspace(4)* %out, i64 999999
  %in.gep = getelementptr i32, i32 addrspace(4)* %in, i64 7
  %cast = addrspacecast i32 addrspace(4)* %in.gep to i32 addrspace(1)*
  %tmp0 = icmp eq i32 %cond, 0
  br i1 %tmp0, label %endif, label %if

if:
  %tmp1 = load i32, i32 addrspace(1)* %cast
  br label %endif

endif:
  %x = phi i32 [ %tmp1, %if ], [ 0, %entry ]
  store i32 %x, i32 addrspace(4)* %out.gep
  br label %done

done:
  ret void
}

; OPT-LABEL: @test_sink_noop_addrspacecast_flat_to_constant_i32(
; OPT: getelementptr i32, i32 addrspace(4)* %out,
; OPT-CI-NOT: getelementptr
; OPT: br i1

; OPT-CI: ptrtoint
; OPT-CI: add
; OPT-CI: inttoptr
; OPT: br label

; GCN-LABEL: {{^}}test_sink_noop_addrspacecast_flat_to_constant_i32:
; CI: s_load_dword {{s[0-9]+}}, s{{\[[0-9]+:[0-9]+\]}}, 0xd
define amdgpu_kernel void @test_sink_noop_addrspacecast_flat_to_constant_i32(i32 addrspace(4)* %out, i32 addrspace(4)* %in, i32 %cond) {
entry:
  %out.gep = getelementptr i32, i32 addrspace(4)* %out, i64 999999
  %in.gep = getelementptr i32, i32 addrspace(4)* %in, i64 7
  %cast = addrspacecast i32 addrspace(4)* %in.gep to i32 addrspace(2)*
  %tmp0 = icmp eq i32 %cond, 0
  br i1 %tmp0, label %endif, label %if

if:
  %tmp1 = load i32, i32 addrspace(2)* %cast
  br label %endif

endif:
  %x = phi i32 [ %tmp1, %if ], [ 0, %entry ]
  store i32 %x, i32 addrspace(4)* %out.gep
  br label %done

done:
  ret void
}