xref: /llvm-project/llvm/test/Transforms/FunctionAttrs/initializes.ll (revision 29441e4f5fa5f5c7709f7cf180815ba97f611297)

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-attributes --version 4
; RUN: opt -passes=function-attrs -S < %s | FileCheck %s

define void @basic(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @basic(
; CHECK-SAME: ptr writeonly captures(none) initializes((0, 8)) [[P:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT:    store i64 123, ptr [[P]], align 4
; CHECK-NEXT:    ret void
;
  store i64 123, ptr %p
  ret void
}

define void @stores_on_both_paths(ptr %p, i1 %i) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @stores_on_both_paths(
; CHECK-SAME: ptr writeonly captures(none) initializes((0, 8)) [[P:%.*]], i1 [[I:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br i1 [[I]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    store i64 123, ptr [[P]], align 4
; CHECK-NEXT:    br label [[END:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    store i64 321, ptr [[P]], align 4
; CHECK-NEXT:    br label [[END]]
; CHECK:       end:
; CHECK-NEXT:    ret void
;
entry:
  br i1 %i, label %bb1, label %bb2
bb1:
  store i64 123, ptr %p
  br label %end
bb2:
  store i64 321, ptr %p
  br label %end
end:
  ret void
}

define void @store_pointer_to_pointer(ptr %p, ptr %p2) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @store_pointer_to_pointer(
; CHECK-SAME: ptr [[P:%.*]], ptr writeonly captures(none) initializes((0, 8)) [[P2:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    store ptr [[P]], ptr [[P2]], align 8
; CHECK-NEXT:    ret void
;
  store ptr %p, ptr %p2
  ret void
}

; TODO: this is still initializes
define void @store_pointer_to_itself(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @store_pointer_to_itself(
; CHECK-SAME: ptr [[P:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    store ptr [[P]], ptr [[P]], align 8
; CHECK-NEXT:    ret void
;
  store ptr %p, ptr %p
  ret void
}

define void @load_before_store(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @load_before_store(
; CHECK-SAME: ptr captures(none) [[P:%.*]]) #[[ATTR1:[0-9]+]] {
; CHECK-NEXT:    [[A:%.*]] = load i32, ptr [[P]], align 4
; CHECK-NEXT:    store i32 123, ptr [[P]], align 4
; CHECK-NEXT:    ret void
;
  %a = load i32, ptr %p
  store i32 123, ptr %p
  ret void
}

define void @partial_load_before_store(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @partial_load_before_store(
; CHECK-SAME: ptr captures(none) initializes((4, 8)) [[P:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:    [[A:%.*]] = load i32, ptr [[P]], align 4
; CHECK-NEXT:    store i64 123, ptr [[P]], align 4
; CHECK-NEXT:    ret void
;
  %a = load i32, ptr %p
  store i64 123, ptr %p
  ret void
}

declare void @use(ptr)

define void @call_clobber(ptr %p) {
; CHECK-LABEL: define void @call_clobber(
; CHECK-SAME: ptr [[P:%.*]]) {
; CHECK-NEXT:    call void @use(ptr [[P]])
; CHECK-NEXT:    store i64 123, ptr [[P]], align 4
; CHECK-NEXT:    ret void
;
  call void @use(ptr %p)
  store i64 123, ptr %p
  ret void
}

define void @call_clobber_after_store(ptr %p) {
; CHECK-LABEL: define void @call_clobber_after_store(
; CHECK-SAME: ptr initializes((0, 8)) [[P:%.*]]) {
; CHECK-NEXT:    store i64 123, ptr [[P]], align 4
; CHECK-NEXT:    call void @use(ptr [[P]])
; CHECK-NEXT:    ret void
;
  store i64 123, ptr %p
  call void @use(ptr %p)
  ret void
}

define void @store_offset(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @store_offset(
; CHECK-SAME: ptr writeonly captures(none) initializes((8, 12)) [[P:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 8
; CHECK-NEXT:    store i32 123, ptr [[G]], align 4
; CHECK-NEXT:    ret void
;
  %g = getelementptr i8, ptr %p, i64 8
  store i32 123, ptr %g
  ret void
}

define void @store_volatile(ptr %p) {
; CHECK: Function Attrs: nofree norecurse nounwind memory(argmem: readwrite, inaccessiblemem: readwrite)
; CHECK-LABEL: define void @store_volatile(
; CHECK-SAME: ptr [[P:%.*]]) #[[ATTR2:[0-9]+]] {
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 8
; CHECK-NEXT:    store volatile i32 123, ptr [[G]], align 4
; CHECK-NEXT:    ret void
;
  %g = getelementptr i8, ptr %p, i64 8
  store volatile i32 123, ptr %g
  ret void
}

define void @merge_store_ranges(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @merge_store_ranges(
; CHECK-SAME: ptr writeonly captures(none) initializes((0, 8)) [[P:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 4
; CHECK-NEXT:    store i32 123, ptr [[G]], align 4
; CHECK-NEXT:    store i32 123, ptr [[P]], align 4
; CHECK-NEXT:    ret void
;
  %g = getelementptr i8, ptr %p, i64 4
  store i32 123, ptr %g
  store i32 123, ptr %p
  ret void
}

define void @partially_overlapping_stores_branches(ptr %p, i1 %i) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @partially_overlapping_stores_branches(
; CHECK-SAME: ptr captures(none) initializes((4, 8)) [[P:%.*]], i1 [[I:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[A:%.*]] = load i32, ptr [[P]], align 4
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 4
; CHECK-NEXT:    br i1 [[I]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    store i64 123, ptr [[G]], align 4
; CHECK-NEXT:    br label [[END:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    store i64 321, ptr [[P]], align 4
; CHECK-NEXT:    br label [[END]]
; CHECK:       end:
; CHECK-NEXT:    ret void
;
entry:
  %a = load i32, ptr %p
  %g = getelementptr i8, ptr %p, i64 4
  br i1 %i, label %bb1, label %bb2
bb1:
  store i64 123, ptr %g
  br label %end
bb2:
  store i64 321, ptr %p
  br label %end
end:
  ret void
}

define void @non_overlapping_stores_branches(ptr %p, i1 %i) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @non_overlapping_stores_branches(
; CHECK-SAME: ptr writeonly captures(none) [[P:%.*]], i1 [[I:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 8
; CHECK-NEXT:    br i1 [[I]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    store i64 123, ptr [[G]], align 4
; CHECK-NEXT:    br label [[END:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    store i64 321, ptr [[P]], align 4
; CHECK-NEXT:    br label [[END]]
; CHECK:       end:
; CHECK-NEXT:    ret void
;
entry:
  %g = getelementptr i8, ptr %p, i64 8
  br i1 %i, label %bb1, label %bb2
bb1:
  store i64 123, ptr %g
  br label %end
bb2:
  store i64 321, ptr %p
  br label %end
end:
  ret void
}

define void @dominating_store(ptr %p, i1 %i) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @dominating_store(
; CHECK-SAME: ptr writeonly captures(none) initializes((0, 8)) [[P:%.*]], i1 [[I:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br i1 [[I]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    br label [[END:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    br label [[END]]
; CHECK:       end:
; CHECK-NEXT:    store i64 321, ptr [[P]], align 4
; CHECK-NEXT:    ret void
;
entry:
  br i1 %i, label %bb1, label %bb2
bb1:
  br label %end
bb2:
  br label %end
end:
  store i64 321, ptr %p
  ret void
}

define void @call_clobber_on_one_branch(ptr %p, i1 %i) {
; CHECK-LABEL: define void @call_clobber_on_one_branch(
; CHECK-SAME: ptr [[P:%.*]], i1 [[I:%.*]]) {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br i1 [[I]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    br label [[END:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    call void @use(ptr [[P]])
; CHECK-NEXT:    br label [[END]]
; CHECK:       end:
; CHECK-NEXT:    store i64 321, ptr [[P]], align 4
; CHECK-NEXT:    ret void
;
entry:
  br i1 %i, label %bb1, label %bb2
bb1:
  br label %end
bb2:
  call void @use(ptr %p)
  br label %end
end:
  store i64 321, ptr %p
  ret void
}

define void @merge_existing_initializes(ptr initializes((33, 36)) %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @merge_existing_initializes(
; CHECK-SAME: ptr writeonly captures(none) initializes((0, 8), (33, 36)) [[P:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    store i64 123, ptr [[P]], align 4
; CHECK-NEXT:    ret void
;
  store i64 123, ptr %p
  ret void
}

define void @negative_offset(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @negative_offset(
; CHECK-SAME: ptr writeonly captures(none) initializes((-5, 3)) [[P:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 -5
; CHECK-NEXT:    store i64 123, ptr [[G]], align 4
; CHECK-NEXT:    ret void
;
  %g = getelementptr i8, ptr %p, i64 -5
  store i64 123, ptr %g
  ret void
}

define void @non_const_gep(ptr %p, i64 %i) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @non_const_gep(
; CHECK-SAME: ptr writeonly captures(none) initializes((0, 8)) [[P:%.*]], i64 [[I:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 [[I]]
; CHECK-NEXT:    store i64 123, ptr [[G]], align 4
; CHECK-NEXT:    store i64 123, ptr [[P]], align 4
; CHECK-NEXT:    ret void
;
  %g = getelementptr i8, ptr %p, i64 %i
  store i64 123, ptr %g
  store i64 123, ptr %p
  ret void
}

define void @call_clobber_in_entry_block(ptr %p, i1 %i) {
; CHECK-LABEL: define void @call_clobber_in_entry_block(
; CHECK-SAME: ptr [[P:%.*]], i1 [[I:%.*]]) {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    call void @use(ptr [[P]])
; CHECK-NEXT:    br i1 [[I]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    store i64 123, ptr [[P]], align 4
; CHECK-NEXT:    br label [[END:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    store i64 321, ptr [[P]], align 4
; CHECK-NEXT:    br label [[END]]
; CHECK:       end:
; CHECK-NEXT:    ret void
;
entry:
  call void @use(ptr %p)
  br i1 %i, label %bb1, label %bb2
bb1:
  store i64 123, ptr %p
  br label %end
bb2:
  store i64 321, ptr %p
  br label %end
end:
  ret void
}

declare void @g1(ptr initializes((0, 4)) %p)
declare void @g2(ptr initializes((8, 12)) %p)
declare void @g3(ptr initializes((0, 4)) writeonly nocapture %p)

define void @call_initializes(ptr %p) {
; CHECK-LABEL: define void @call_initializes(
; CHECK-SAME: ptr initializes((0, 4)) [[P:%.*]]) {
; CHECK-NEXT:    call void @g1(ptr [[P]])
; CHECK-NEXT:    ret void
;
  call void @g1(ptr %p)
  ret void
}

define void @call_initializes_clobber(ptr %p) {
; CHECK-LABEL: define void @call_initializes_clobber(
; CHECK-SAME: ptr initializes((0, 4)) [[P:%.*]]) {
; CHECK-NEXT:    call void @g1(ptr [[P]])
; CHECK-NEXT:    call void @g2(ptr [[P]])
; CHECK-NEXT:    ret void
;
  call void @g1(ptr %p)
  call void @g2(ptr %p)
  ret void
}

define void @call_initializes_no_clobber_writeonly_nocapture(ptr %p) {
; CHECK-LABEL: define void @call_initializes_no_clobber_writeonly_nocapture(
; CHECK-SAME: ptr initializes((0, 4), (8, 12)) [[P:%.*]]) {
; CHECK-NEXT:    call void @g3(ptr [[P]])
; CHECK-NEXT:    call void @g2(ptr [[P]])
; CHECK-NEXT:    ret void
;
  call void @g3(ptr %p)
  call void @g2(ptr %p)
  ret void
}

define void @call_initializes_escape_bundle(ptr %p) {
; CHECK-LABEL: define void @call_initializes_escape_bundle(
; CHECK-SAME: ptr [[P:%.*]]) {
; CHECK-NEXT:    call void @g1(ptr [[P]]) [ "unknown"(ptr [[P]]) ]
; CHECK-NEXT:    ret void
;
  call void @g1(ptr %p) ["unknown"(ptr %p)]
  ret void
}

define void @access_bundle() {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define void @access_bundle(
; CHECK-SAME: ) #[[ATTR3:[0-9]+]] {
; CHECK-NEXT:    [[SINK:%.*]] = alloca i64, align 8
; CHECK-NEXT:    store i64 123, ptr [[SINK]], align 4
; CHECK-NEXT:    ret void
;
  %sink = alloca i64, align 8
  store i64 123, ptr %sink
  ret void
}

define void @call_operand_bundle(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn
; CHECK-LABEL: define void @call_operand_bundle(
; CHECK-SAME: ptr [[P:%.*]]) #[[ATTR4:[0-9]+]] {
; CHECK-NEXT:    call void @access_bundle() [ "unknown"(ptr [[P]]) ]
; CHECK-NEXT:    ret void
;
  call void @access_bundle() ["unknown"(ptr %p)]
  ret void
}

declare void @llvm.memset(ptr, i8, i64 ,i1)

define void @memset(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @memset(
; CHECK-SAME: ptr writeonly captures(none) initializes((0, 9)) [[P:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    call void @llvm.memset.p0.i64(ptr [[P]], i8 2, i64 9, i1 false)
; CHECK-NEXT:    ret void
;
  call void @llvm.memset(ptr %p, i8 2, i64 9, i1 false)
  ret void
}

define void @memset_offset(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @memset_offset(
; CHECK-SAME: ptr writeonly captures(none) initializes((3, 12)) [[P:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 3
; CHECK-NEXT:    call void @llvm.memset.p0.i64(ptr [[G]], i8 2, i64 9, i1 false)
; CHECK-NEXT:    ret void
;
  %g = getelementptr i8, ptr %p, i64 3
  call void @llvm.memset(ptr %g, i8 2, i64 9, i1 false)
  ret void
}

define void @memset_neg(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @memset_neg(
; CHECK-SAME: ptr writeonly captures(none) [[P:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    call void @llvm.memset.p0.i64(ptr [[P]], i8 2, i64 -1, i1 false)
; CHECK-NEXT:    ret void
;
  call void @llvm.memset(ptr %p, i8 2, i64 -1, i1 false)
  ret void
}

define void @memset_volatile(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @memset_volatile(
; CHECK-SAME: ptr writeonly [[P:%.*]]) #[[ATTR5:[0-9]+]] {
; CHECK-NEXT:    call void @llvm.memset.p0.i64(ptr [[P]], i8 2, i64 9, i1 true)
; CHECK-NEXT:    ret void
;
  call void @llvm.memset(ptr %p, i8 2, i64 9, i1 true)
  ret void
}

define void @memset_non_constant(ptr %p, i64 %i) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @memset_non_constant(
; CHECK-SAME: ptr writeonly captures(none) [[P:%.*]], i64 [[I:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    call void @llvm.memset.p0.i64(ptr [[P]], i8 2, i64 [[I]], i1 false)
; CHECK-NEXT:    ret void
;
  call void @llvm.memset(ptr %p, i8 2, i64 %i, i1 false)
  ret void
}

declare void @llvm.memcpy(ptr, ptr, i64 ,i1)

define void @memcpy(ptr %p, ptr %p2) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memcpy(
; CHECK-SAME: ptr writeonly captures(none) initializes((0, 9)) [[P:%.*]], ptr readonly captures(none) [[P2:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i64(ptr [[P]], ptr [[P2]], i64 9, i1 false)
; CHECK-NEXT:    ret void
;
  call void @llvm.memcpy(ptr %p, ptr %p2, i64 9, i1 false)
  ret void
}

define void @memcpy_volatile(ptr %p, ptr %p2) {
; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memcpy_volatile(
; CHECK-SAME: ptr writeonly [[P:%.*]], ptr readonly [[P2:%.*]]) #[[ATTR6:[0-9]+]] {
; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i64(ptr [[P]], ptr [[P2]], i64 9, i1 true)
; CHECK-NEXT:    ret void
;
  call void @llvm.memcpy(ptr %p, ptr %p2, i64 9, i1 true)
  ret void
}

define void @memcpy_offset(ptr %p, ptr %p2) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memcpy_offset(
; CHECK-SAME: ptr writeonly captures(none) initializes((3, 12)) [[P:%.*]], ptr readonly captures(none) [[P2:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 3
; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i64(ptr [[G]], ptr [[P2]], i64 9, i1 false)
; CHECK-NEXT:    ret void
;
  %g = getelementptr i8, ptr %p, i64 3
  call void @llvm.memcpy(ptr %g, ptr %p2, i64 9, i1 false)
  ret void
}

define void @memcpy_src(ptr %p, ptr %p2) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memcpy_src(
; CHECK-SAME: ptr captures(none) initializes((96, 128)) [[P:%.*]], ptr captures(none) initializes((0, 96)) [[P2:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i64(ptr [[P2]], ptr [[P]], i64 96, i1 false)
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 64
; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i64(ptr [[G]], ptr [[P2]], i64 64, i1 false)
; CHECK-NEXT:    ret void
;
  call void @llvm.memcpy(ptr %p2, ptr %p, i64 96, i1 false)
  %g = getelementptr i8, ptr %p, i64 64
  call void @llvm.memcpy(ptr %g, ptr %p2, i64 64, i1 false)
  ret void
}

define void @memcpy_non_constant(ptr %p, ptr %p2, i64 %i) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memcpy_non_constant(
; CHECK-SAME: ptr writeonly captures(none) [[P:%.*]], ptr readonly captures(none) [[P2:%.*]], i64 [[I:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i64(ptr [[P]], ptr [[P2]], i64 [[I]], i1 false)
; CHECK-NEXT:    ret void
;
  call void @llvm.memcpy(ptr %p, ptr %p2, i64 %i, i1 false)
  ret void
}

declare void @llvm.memmove(ptr, ptr, i64 ,i1)

define void @memmove(ptr %p, ptr %p2) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memmove(
; CHECK-SAME: ptr writeonly captures(none) initializes((0, 9)) [[P:%.*]], ptr readonly captures(none) [[P2:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:    call void @llvm.memmove.p0.p0.i64(ptr [[P]], ptr [[P2]], i64 9, i1 false)
; CHECK-NEXT:    ret void
;
  call void @llvm.memmove(ptr %p, ptr %p2, i64 9, i1 false)
  ret void
}

define void @memmove_volatile(ptr %p, ptr %p2) {
; CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memmove_volatile(
; CHECK-SAME: ptr writeonly [[P:%.*]], ptr readonly [[P2:%.*]]) #[[ATTR6]] {
; CHECK-NEXT:    call void @llvm.memmove.p0.p0.i64(ptr [[P]], ptr [[P2]], i64 9, i1 true)
; CHECK-NEXT:    ret void
;
  call void @llvm.memmove(ptr %p, ptr %p2, i64 9, i1 true)
  ret void
}

define void @memmove_offset(ptr %p, ptr %p2) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memmove_offset(
; CHECK-SAME: ptr writeonly captures(none) initializes((3, 12)) [[P:%.*]], ptr readonly captures(none) [[P2:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 3
; CHECK-NEXT:    call void @llvm.memmove.p0.p0.i64(ptr [[G]], ptr [[P2]], i64 9, i1 false)
; CHECK-NEXT:    ret void
;
  %g = getelementptr i8, ptr %p, i64 3
  call void @llvm.memmove(ptr %g, ptr %p2, i64 9, i1 false)
  ret void
}

define void @memmove_src(ptr %p, ptr %p2) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memmove_src(
; CHECK-SAME: ptr captures(none) initializes((96, 128)) [[P:%.*]], ptr captures(none) initializes((0, 96)) [[P2:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:    call void @llvm.memmove.p0.p0.i64(ptr [[P2]], ptr [[P]], i64 96, i1 false)
; CHECK-NEXT:    [[G:%.*]] = getelementptr i8, ptr [[P]], i64 64
; CHECK-NEXT:    call void @llvm.memmove.p0.p0.i64(ptr [[G]], ptr [[P2]], i64 64, i1 false)
; CHECK-NEXT:    ret void
;
  call void @llvm.memmove(ptr %p2, ptr %p, i64 96, i1 false)
  %g = getelementptr i8, ptr %p, i64 64
  call void @llvm.memmove(ptr %g, ptr %p2, i64 64, i1 false)
  ret void
}

define void @memmove_non_constant(ptr %p, ptr %p2, i64 %i) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memmove_non_constant(
; CHECK-SAME: ptr writeonly captures(none) [[P:%.*]], ptr readonly captures(none) [[P2:%.*]], i64 [[I:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:    call void @llvm.memmove.p0.p0.i64(ptr [[P]], ptr [[P2]], i64 [[I]], i1 false)
; CHECK-NEXT:    ret void
;
  call void @llvm.memmove(ptr %p, ptr %p2, i64 %i, i1 false)
  ret void
}

define void @callee_byval(ptr byval(i32) %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @callee_byval(
; CHECK-SAME: ptr writeonly byval(i32) captures(none) initializes((0, 4)) [[P:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    store i32 0, ptr [[P]], align 4
; CHECK-NEXT:    ret void
;
  store i32 0, ptr %p
  ret void
}

define void @caller_byval(ptr %p) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CHECK-LABEL: define void @caller_byval(
; CHECK-SAME: ptr readonly captures(none) [[P:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:    call void @callee_byval(ptr byval(i32) [[P]])
; CHECK-NEXT:    ret void
;
  call void @callee_byval(ptr byval(i32) %p)
  ret void
}

define void @memset_offset_0_size_0(ptr %dst, ptr %src) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memset_offset_0_size_0(
; CHECK-SAME: ptr writeonly captures(none) [[DST:%.*]], ptr readonly captures(none) [[SRC:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:    call void @llvm.memmove.p0.p0.i64(ptr [[DST]], ptr [[SRC]], i64 0, i1 false)
; CHECK-NEXT:    ret void
;
  call void @llvm.memmove.p0.p0.i64(ptr %dst, ptr %src, i64 0, i1 false)
  ret void
}

define void @memset_offset_1_size_0(ptr %dst, ptr %src) {
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; CHECK-LABEL: define void @memset_offset_1_size_0(
; CHECK-SAME: ptr writeonly captures(none) [[DST:%.*]], ptr readonly captures(none) [[SRC:%.*]]) #[[ATTR1]] {
; CHECK-NEXT:    [[DST_1:%.*]] = getelementptr inbounds i8, ptr [[DST]], i64 1
; CHECK-NEXT:    call void @llvm.memmove.p0.p0.i64(ptr [[DST_1]], ptr [[SRC]], i64 0, i1 false)
; CHECK-NEXT:    ret void
;
  %dst.1 = getelementptr inbounds i8, ptr %dst, i64 1
  call void @llvm.memmove.p0.p0.i64(ptr %dst.1, ptr %src, i64 0, i1 false)
  ret void
}