xref: /llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/dereferenceable-declaration.ll (revision 9e9907f1cfa424366fba58d9520f9305b537cec9)

; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
; RUN: llc -global-isel -mtriple=amdgcn -mcpu=fiji -stop-after=irtranslator -o - %s | FileCheck %s

declare align(8) dereferenceable(8) ptr @declared_with_ret_deref() #0
declare align(8) ptr @unknown_decl() #0
declare align(8) dereferenceable(4) ptr @declared_with_ret_deref4() #0
declare align(8) dereferenceable_or_null(8) ptr @declared_with_ret_deref_or_null() #0
declare align(8) nonnull ptr @nonnull_decl() #0
declare align(8) dereferenceable_or_null(4) ptr @declared_with_ret_deref_or_null4() #0

; Should have dereferenceable on mem operand
define i64 @load_deref_declaration_only() {
  ; CHECK-LABEL: name: load_deref_declaration_only
  ; CHECK: bb.1 (%ir-block.0):
  ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @declared_with_ret_deref
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $sgpr0_sgpr1_sgpr2_sgpr3
  ; CHECK-NEXT:   $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY]](<4 x s32>)
  ; CHECK-NEXT:   $sgpr30_sgpr31 = noconvergent G_SI_CALL [[GV]](p0), @declared_with_ret_deref, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def $vgpr0, implicit-def $vgpr1
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr0
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr1
  ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p0) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
  ; CHECK-NEXT:   ADJCALLSTACKDOWN 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[ASSERT_ALIGN:%[0-9]+]]:_(p0) = G_ASSERT_ALIGN [[MV]], 8
  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s64) = G_LOAD [[ASSERT_ALIGN]](p0) :: (dereferenceable load (s64) from %ir.call)
  ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](s64)
  ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
  ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1
  %call = call ptr @declared_with_ret_deref()
  %load = load i64, ptr %call, align 8
  ret i64 %load
}

; No dereferenceable on mem operand
define i64 @load_deref_unknown_decl() {
  ; CHECK-LABEL: name: load_deref_unknown_decl
  ; CHECK: bb.1 (%ir-block.0):
  ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @unknown_decl
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $sgpr0_sgpr1_sgpr2_sgpr3
  ; CHECK-NEXT:   $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY]](<4 x s32>)
  ; CHECK-NEXT:   $sgpr30_sgpr31 = noconvergent G_SI_CALL [[GV]](p0), @unknown_decl, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def $vgpr0, implicit-def $vgpr1
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr0
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr1
  ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p0) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
  ; CHECK-NEXT:   ADJCALLSTACKDOWN 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[ASSERT_ALIGN:%[0-9]+]]:_(p0) = G_ASSERT_ALIGN [[MV]], 8
  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s64) = G_LOAD [[ASSERT_ALIGN]](p0) :: (load (s64) from %ir.call)
  ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](s64)
  ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
  ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1
  %call = call ptr @unknown_decl()
  %load = load i64, ptr %call, align 8
  ret i64 %load
}

; Should have dereferenceable on mem operand
define i64 @load_deref_callsite_only() {
  ; CHECK-LABEL: name: load_deref_callsite_only
  ; CHECK: bb.1 (%ir-block.0):
  ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @unknown_decl
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $sgpr0_sgpr1_sgpr2_sgpr3
  ; CHECK-NEXT:   $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY]](<4 x s32>)
  ; CHECK-NEXT:   $sgpr30_sgpr31 = noconvergent G_SI_CALL [[GV]](p0), @unknown_decl, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def $vgpr0, implicit-def $vgpr1
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr0
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr1
  ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p0) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
  ; CHECK-NEXT:   ADJCALLSTACKDOWN 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[ASSERT_ALIGN:%[0-9]+]]:_(p0) = G_ASSERT_ALIGN [[MV]], 8
  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s64) = G_LOAD [[ASSERT_ALIGN]](p0) :: (dereferenceable load (s64) from %ir.call)
  ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](s64)
  ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
  ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1
  %call = call dereferenceable(8) ptr @unknown_decl()
  %load = load i64, ptr %call, align 8
  ret i64 %load
}

; Both loads should have effective dereferenceable(8) since the
; maximum should be used.
define i64 @load_deref_maxmimum_callsite_declaration_only() {
  ; CHECK-LABEL: name: load_deref_maxmimum_callsite_declaration_only
  ; CHECK: bb.1 (%ir-block.0):
  ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @declared_with_ret_deref
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $sgpr0_sgpr1_sgpr2_sgpr3
  ; CHECK-NEXT:   $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY]](<4 x s32>)
  ; CHECK-NEXT:   $sgpr30_sgpr31 = noconvergent G_SI_CALL [[GV]](p0), @declared_with_ret_deref, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def $vgpr0, implicit-def $vgpr1
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr0
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr1
  ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p0) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
  ; CHECK-NEXT:   ADJCALLSTACKDOWN 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[ASSERT_ALIGN:%[0-9]+]]:_(p0) = G_ASSERT_ALIGN [[MV]], 8
  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s64) = G_LOAD [[ASSERT_ALIGN]](p0) :: (dereferenceable load (s64) from %ir.call0)
  ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[GV1:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @declared_with_ret_deref4
  ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:_(<4 x s32>) = COPY $sgpr0_sgpr1_sgpr2_sgpr3
  ; CHECK-NEXT:   $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY3]](<4 x s32>)
  ; CHECK-NEXT:   $sgpr30_sgpr31 = noconvergent G_SI_CALL [[GV1]](p0), @declared_with_ret_deref4, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def $vgpr0, implicit-def $vgpr1
  ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr0
  ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr1
  ; CHECK-NEXT:   [[MV1:%[0-9]+]]:_(p0) = G_MERGE_VALUES [[COPY4]](s32), [[COPY5]](s32)
  ; CHECK-NEXT:   ADJCALLSTACKDOWN 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[ASSERT_ALIGN1:%[0-9]+]]:_(p0) = G_ASSERT_ALIGN [[MV1]], 8
  ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(s64) = G_LOAD [[ASSERT_ALIGN1]](p0) :: (dereferenceable load (s64) from %ir.call1)
  ; CHECK-NEXT:   [[ADD:%[0-9]+]]:_(s64) = G_ADD [[LOAD]], [[LOAD1]]
  ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[ADD]](s64)
  ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
  ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1
  %call0 = call dereferenceable(4) ptr @declared_with_ret_deref()
  %load0 = load i64, ptr %call0, align 8
  %call1 = call dereferenceable(8) ptr @declared_with_ret_deref4()
  %load1 = load i64, ptr %call1, align 8
  %add = add i64 %load0, %load1
  ret i64 %add
}

; Should have deref_or_nullerenceable on mem operand
define i64 @load_deref_or_null_declaration_only() {
  ; CHECK-LABEL: name: load_deref_or_null_declaration_only
  ; CHECK: bb.1 (%ir-block.0):
  ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @declared_with_ret_deref_or_null
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $sgpr0_sgpr1_sgpr2_sgpr3
  ; CHECK-NEXT:   $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY]](<4 x s32>)
  ; CHECK-NEXT:   $sgpr30_sgpr31 = noconvergent G_SI_CALL [[GV]](p0), @declared_with_ret_deref_or_null, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def $vgpr0, implicit-def $vgpr1
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr0
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr1
  ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p0) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
  ; CHECK-NEXT:   ADJCALLSTACKDOWN 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[ASSERT_ALIGN:%[0-9]+]]:_(p0) = G_ASSERT_ALIGN [[MV]], 8
  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s64) = G_LOAD [[ASSERT_ALIGN]](p0) :: (dereferenceable load (s64) from %ir.call)
  ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](s64)
  ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
  ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1
  %call = call nonnull ptr @declared_with_ret_deref_or_null()
  %load = load i64, ptr %call, align 8
  ret i64 %load
}

; No deref_or_nullerenceable on mem operand
define i64 @load_deref_or_null_nonnull_decl() {
  ; CHECK-LABEL: name: load_deref_or_null_nonnull_decl
  ; CHECK: bb.1 (%ir-block.0):
  ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @nonnull_decl
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $sgpr0_sgpr1_sgpr2_sgpr3
  ; CHECK-NEXT:   $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY]](<4 x s32>)
  ; CHECK-NEXT:   $sgpr30_sgpr31 = noconvergent G_SI_CALL [[GV]](p0), @nonnull_decl, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def $vgpr0, implicit-def $vgpr1
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr0
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr1
  ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p0) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
  ; CHECK-NEXT:   ADJCALLSTACKDOWN 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[ASSERT_ALIGN:%[0-9]+]]:_(p0) = G_ASSERT_ALIGN [[MV]], 8
  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s64) = G_LOAD [[ASSERT_ALIGN]](p0) :: (load (s64) from %ir.call)
  ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](s64)
  ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
  ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1
  %call = call ptr @nonnull_decl()
  %load = load i64, ptr %call, align 8
  ret i64 %load
}

; Should have deref_or_nullerenceable on mem operand
define i64 @load_deref_or_null_callsite_only() {
  ; CHECK-LABEL: name: load_deref_or_null_callsite_only
  ; CHECK: bb.1 (%ir-block.0):
  ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @nonnull_decl
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $sgpr0_sgpr1_sgpr2_sgpr3
  ; CHECK-NEXT:   $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY]](<4 x s32>)
  ; CHECK-NEXT:   $sgpr30_sgpr31 = noconvergent G_SI_CALL [[GV]](p0), @nonnull_decl, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def $vgpr0, implicit-def $vgpr1
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr0
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr1
  ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p0) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
  ; CHECK-NEXT:   ADJCALLSTACKDOWN 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[ASSERT_ALIGN:%[0-9]+]]:_(p0) = G_ASSERT_ALIGN [[MV]], 8
  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s64) = G_LOAD [[ASSERT_ALIGN]](p0) :: (dereferenceable load (s64) from %ir.call)
  ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](s64)
  ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
  ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1
  %call = call dereferenceable_or_null(8) ptr @nonnull_decl()
  %load = load i64, ptr %call, align 8
  ret i64 %load
}

; Both loads should have effective deref_or_nullerenceable(8) since the
; maximum should be used.
define i64 @load_deref_or_null_maxmimum_callsite_declaration_only() {
  ; CHECK-LABEL: name: load_deref_or_null_maxmimum_callsite_declaration_only
  ; CHECK: bb.1 (%ir-block.0):
  ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @declared_with_ret_deref_or_null
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $sgpr0_sgpr1_sgpr2_sgpr3
  ; CHECK-NEXT:   $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY]](<4 x s32>)
  ; CHECK-NEXT:   $sgpr30_sgpr31 = noconvergent G_SI_CALL [[GV]](p0), @declared_with_ret_deref_or_null, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def $vgpr0, implicit-def $vgpr1
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr0
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr1
  ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p0) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
  ; CHECK-NEXT:   ADJCALLSTACKDOWN 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[ASSERT_ALIGN:%[0-9]+]]:_(p0) = G_ASSERT_ALIGN [[MV]], 8
  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s64) = G_LOAD [[ASSERT_ALIGN]](p0) :: (dereferenceable load (s64) from %ir.call0)
  ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[GV1:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @declared_with_ret_deref_or_null4
  ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:_(<4 x s32>) = COPY $sgpr0_sgpr1_sgpr2_sgpr3
  ; CHECK-NEXT:   $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY3]](<4 x s32>)
  ; CHECK-NEXT:   $sgpr30_sgpr31 = noconvergent G_SI_CALL [[GV1]](p0), @declared_with_ret_deref_or_null4, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def $vgpr0, implicit-def $vgpr1
  ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr0
  ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr1
  ; CHECK-NEXT:   [[MV1:%[0-9]+]]:_(p0) = G_MERGE_VALUES [[COPY4]](s32), [[COPY5]](s32)
  ; CHECK-NEXT:   ADJCALLSTACKDOWN 0, 0, implicit-def $scc
  ; CHECK-NEXT:   [[ASSERT_ALIGN1:%[0-9]+]]:_(p0) = G_ASSERT_ALIGN [[MV1]], 8
  ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(s64) = G_LOAD [[ASSERT_ALIGN1]](p0) :: (dereferenceable load (s64) from %ir.call1)
  ; CHECK-NEXT:   [[ADD:%[0-9]+]]:_(s64) = G_ADD [[LOAD]], [[LOAD1]]
  ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[ADD]](s64)
  ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
  ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1
  %call0 = call dereferenceable_or_null(4) nonnull ptr @declared_with_ret_deref_or_null()
  %load0 = load i64, ptr %call0, align 8
  %call1 = call dereferenceable_or_null(8) nonnull ptr @declared_with_ret_deref_or_null4()
  %load1 = load i64, ptr %call1, align 8
  %add = add i64 %load0, %load1
  ret i64 %add
}

attributes #0 = { "amdgpu-no-completion-action" "amdgpu-no-default-queue" "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" }