[GVN] Add test with different captures attributes (NFC)

Author: nikic

llvm/test/Transforms/GVN/captures.ll

@@ -0,0 +1,93 @@
+; 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:    [[V:%.*]] = load i32, ptr [[A]], align 4
+; CHECK-NEXT:    ret i32 [[V]]
+;
+  %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
+}