llvm/test/Transforms/GVN/captures.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -passes=gvn < %s | FileCheck %s

declare void @capture(ptr)
declare void @unknown_call()

define i32 @full_capture() {
; CHECK-LABEL: define i32 @full_capture() {
; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT:    call void @capture(ptr [[A]])
; CHECK-NEXT:    store i32 1, ptr [[A]], align 4
; CHECK-NEXT:    call void @unknown_call()
; CHECK-NEXT:    [[V:%.*]] = load i32, ptr [[A]], align 4
; CHECK-NEXT:    ret i32 [[V]]
;
  %a = alloca i32
  call void @capture(ptr %a)
  store i32 1, ptr %a
  call void @unknown_call()
  %v = load i32, ptr %a
  ret i32 %v
}

define i32 @address_capture() {
; CHECK-LABEL: define i32 @address_capture() {
; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT:    call void @capture(ptr captures(address) [[A]])
; CHECK-NEXT:    store i32 1, ptr [[A]], align 4
; CHECK-NEXT:    call void @unknown_call()
; CHECK-NEXT:    ret i32 1
;
  %a = alloca i32
  call void @capture(ptr captures(address) %a)
  store i32 1, ptr %a
  call void @unknown_call()
  %v = load i32, ptr %a
  ret i32 %v
}

define i32 @read_provenance_capture() {
; CHECK-LABEL: define i32 @read_provenance_capture() {
; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT:    call void @capture(ptr captures(address, read_provenance) [[A]])
; CHECK-NEXT:    store i32 1, ptr [[A]], align 4
; CHECK-NEXT:    call void @unknown_call()
; CHECK-NEXT:    ret i32 1
;
  %a = alloca i32
  call void @capture(ptr captures(address, read_provenance) %a)
  store i32 1, ptr %a
  call void @unknown_call()
  %v = load i32, ptr %a
  ret i32 %v
}

define i32 @read_provenance_capture_and_full_capture() {
; CHECK-LABEL: define i32 @read_provenance_capture_and_full_capture() {
; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT:    call void @capture(ptr captures(address, read_provenance) [[A]])
; CHECK-NEXT:    call void @capture(ptr [[A]])
; CHECK-NEXT:    store i32 1, ptr [[A]], align 4
; CHECK-NEXT:    call void @unknown_call()
; CHECK-NEXT:    [[V:%.*]] = load i32, ptr [[A]], align 4
; CHECK-NEXT:    ret i32 [[V]]
;
  %a = alloca i32
  call void @capture(ptr captures(address, read_provenance) %a)
  call void @capture(ptr %a)
  store i32 1, ptr %a
  call void @unknown_call()
  %v = load i32, ptr %a
  ret i32 %v
}

define i32 @read_provenance_capture_and_full_capture_commuted() {
; CHECK-LABEL: define i32 @read_provenance_capture_and_full_capture_commuted() {
; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT:    call void @capture(ptr [[A]])
; CHECK-NEXT:    call void @capture(ptr captures(address, read_provenance) [[A]])
; CHECK-NEXT:    store i32 1, ptr [[A]], align 4
; CHECK-NEXT:    call void @unknown_call()
; CHECK-NEXT:    [[V:%.*]] = load i32, ptr [[A]], align 4
; CHECK-NEXT:    ret i32 [[V]]
;
  %a = alloca i32
  call void @capture(ptr %a)
  call void @capture(ptr captures(address, read_provenance) %a)
  store i32 1, ptr %a
  call void @unknown_call()
  %v = load i32, ptr %a
  ret i32 %v
}