Skip to content

[CIR][NFC][Test] Add llvm ir test for lambdas #1170

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Nov 27, 2024
Merged

[CIR][NFC][Test] Add llvm ir test for lambdas #1170

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
151 changes: 151 additions & 0 deletions clang/test/CIR/CodeGen/lambda.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,8 @@
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -Wno-return-stack-address -emit-cir %s -o %t.cir
// RUN: FileCheck --input-file=%t.cir %s
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -o - %s \
// RUN: | opt -S -passes=instcombine,mem2reg,simplifycfg -o %t.ll
// RUN: FileCheck --check-prefix=LLVM --input-file=%t.ll %s

void fn() {
auto a = [](){};
Expand All @@ -15,6 +18,21 @@ void fn() {
// CHECK-NEXT: %0 = cir.alloca !ty_anon2E0_, !cir.ptr<!ty_anon2E0_>, ["a"]
// CHECK: cir.call @_ZZ2fnvENK3$_0clEv

// LLVM: {{.*}}void @"_ZZ2fnvENK3$_0clEv"(ptr [[THIS:%.*]])
// FIXME: argument attributes should be emmitted, and lambda's alignment
// COM: LLVM: {{.*}} @"_ZZ2fnvENK3$_0clEv"(ptr noundef nonnull align 1 dereferenceable(1) [[THIS:%.*]]){{%.*}} align 2 {
// LLVM: [[THIS_ADDR:%.*]] = alloca ptr, i64 1, align 8
// LLVM: store ptr [[THIS]], ptr [[THIS_ADDR]], align 8
// LLVM: [[THIS1:%.*]] = load ptr, ptr [[THIS_ADDR]], align 8
// LLVM: ret void

// LLVM-LABEL: _Z2fnv
// LLVM: [[a:%.*]] = alloca %class.anon.0, i64 1, align 1
// FIXME: parameter attributes should be emitted
// LLVM: call void @"_ZZ2fnvENK3$_0clEv"(ptr [[a]])
// COM: LLVM: call void @"_ZZ2fnvENK3$_0clEv"(ptr noundef nonnull align 1 dereferenceable(1) [[a]])
// LLVM: ret void

void l0() {
int i;
auto a = [&](){ i = i + 1; };
Expand All @@ -37,6 +55,34 @@ void l0() {

// CHECK: cir.func @_Z2l0v()

// LLVM: {{.* }}void @"_ZZ2l0vENK3$_0clEv"(ptr [[THIS:%.*]])
// LLVM: [[THIS_ADDR:%.*]] = alloca ptr, i64 1, align 8
// LLVM: store ptr [[THIS]], ptr [[THIS_ADDR]], align 8
// LLVM: [[THIS1:%.*]] = load ptr, ptr [[THIS_ADDR]], align 8
// LLVM: [[I:%.*]] = getelementptr %class.anon.2, ptr [[THIS1]], i32 0, i32 0
// FIXME: getelementptr argument attributes should be emitted
// COM: LLVM: [[I:%.*]] = getelementptr inbounds nuw %class.anon.0, ptr [[THIS1]], i32 0, i32 0
// LLVM: [[TMP0:%.*]] = load ptr, ptr [[I]], align 8
// LLVM: [[TMP1:%.*]] = load i32, ptr [[TMP0]], align 4
// LLVM: [[ADD:%.*]] = add nsw i32 [[TMP1]], 1
// LLVM: [[I:%.*]] = getelementptr %class.anon.2, ptr [[THIS1]], i32 0, i32
// COM: LLVM: [[I:%.*]] = getelementptr inbounds nuw %class.anon.0, ptr [[THIS1]], i32 0, i32 0
// LLVM: [[TMP4:%.*]] = load ptr, ptr [[I]], align 8
// LLVM: store i32 [[ADD]], ptr [[TMP4]], align 4
// LLVM: ret void

// LLVM-LABEL: _Z2l0v
// LLVM: [[i:%.*]] = alloca i32, i64 1, align 4
// LLVM: [[a:%.*]] = alloca %class.anon.2, i64 1, align 8
// FIXME: getelementptr argument attributes should be emitted
// COM: LLVM: [[TMP0:%.*]] = getelementptr inbounds %class.anon.2, ptr [[a]], i32 0, i32 0
// LLVM: [[TMP0:%.*]] = getelementptr %class.anon.2, ptr [[a]], i32 0, i32 0
// LLVM: store ptr [[i]], ptr [[TMP0]], align 8
// FIXME: parameter attributes should be emitted
// COM: LLVM: call void @"_ZZ2l0vENK3$_0clEv"(ptr noundef nonnull align 1 dereferenceable(1) [[a]])
// LLVM: call void @"_ZZ2l0vENK3$_0clEv"(ptr [[a]])
// LLVM: ret void

auto g() {
int i = 12;
return [&] {
Expand All @@ -55,6 +101,15 @@ auto g() {
// CHECK: %4 = cir.load %0 : !cir.ptr<!ty_anon2E3_>, !ty_anon2E3_
// CHECK: cir.return %4 : !ty_anon2E3_

// LLVM-LABEL: @_Z1gv()
// LLVM: [[retval:%.*]] = alloca %class.anon.3, i64 1, align 8
// LLVM: [[i:%.*]] = alloca i32, i64 1, align 4
// LLVM: store i32 12, ptr [[i]], align 4
// LLVM: [[i_addr:%.*]] = getelementptr %class.anon.3, ptr [[retval]], i32 0, i32 0
// LLVM: store ptr [[i]], ptr [[i_addr]], align 8
// LLVM: [[tmp:%.*]] = load %class.anon.3, ptr [[retval]], align 8
// LLVM: ret %class.anon.3 [[tmp]]

auto g2() {
int i = 12;
auto lam = [&] {
Expand All @@ -75,6 +130,15 @@ auto g2() {
// CHECK-NEXT: %4 = cir.load %0 : !cir.ptr<!ty_anon2E4_>, !ty_anon2E4_
// CHECK-NEXT: cir.return %4 : !ty_anon2E4_

// LLVM-LABEL: @_Z2g2v()
// LLVM: [[retval:%.*]] = alloca %class.anon.4, i64 1, align 8
// LLVM: [[i:%.*]] = alloca i32, i64 1, align 4
// LLVM: store i32 12, ptr [[i]], align 4
// LLVM: [[i_addr:%.*]] = getelementptr %class.anon.4, ptr [[retval]], i32 0, i32 0
// LLVM: store ptr [[i]], ptr [[i_addr]], align 8
// LLVM: [[tmp:%.*]] = load %class.anon.4, ptr [[retval]], align 8
// LLVM: ret %class.anon.4 [[tmp]]

int f() {
return g2()();
}
Expand All @@ -92,6 +156,36 @@ int f() {
// CHECK-NEXT: cir.return %1 : !s32i
// CHECK-NEXT: }

// LLVM: {{.*}}i32 @"_ZZ2g2vENK3$_0clEv"(ptr [[THIS:%.*]])
// LLVM: [[THIS_ADDR:%.*]] = alloca ptr, i64 1, align 8
// LLVM: [[I_SAVE:%.*]] = alloca i32, i64 1, align 4
// LLVM: store ptr [[THIS]], ptr [[THIS_ADDR]], align 8
// LLVM: [[THIS1:%.*]] = load ptr, ptr [[THIS_ADDR]], align 8
// LLVM: [[I:%.*]] = getelementptr %class.anon.4, ptr [[THIS1]], i32 0, i32 0
// LLVM: [[TMP0:%.*]] = load ptr, ptr [[I]], align 8
// LLVM: [[TMP1:%.*]] = load i32, ptr [[TMP0]], align 4
// LLVM: [[ADD:%.*]] = add nsw i32 [[TMP1]], 100
// LLVM: [[I:%.*]] = getelementptr %class.anon.4, ptr [[THIS1]], i32 0, i32 0
// LLVM: [[TMP4:%.*]] = load ptr, ptr [[I]], align 8
// LLVM: [[TMP5:%.*]] = load i32, ptr [[TMP4]], align 4
// LLVM: store i32 [[TMP5]], ptr [[I_SAVE]], align 4
// LLVM: [[TMP6:%.*]] = load i32, ptr [[I_SAVE]], align 4
// LLVM: ret i32 [[TMP6]]

// LLVM-LABEL: _Z1fv
// LLVM: [[ref_tmp0:%.*]] = alloca %class.anon.4, i64 1, align 8
// LLVM: [[ret_val:%.*]] = alloca i32, i64 1, align 4
// LLVM: br label %[[scope_bb:[0-9]+]],
// LLVM: [[scope_bb]]:
// LLVM: [[tmp0:%.*]] = call %class.anon.4 @_Z2g2v()
// LLVM: store %class.anon.4 [[tmp0]], ptr [[ref_tmp0]], align 8
// LLVM: [[tmp1:%.*]] = call i32 @"_ZZ2g2vENK3$_0clEv"(ptr [[ref_tmp0]])
// LLVM: store i32 [[tmp1]], ptr [[ret_val]], align 4
// LLVM: br label %[[ret_bb:[0-9]+]],
// LLVM: [[ret_bb]]:
// LLVM: [[tmp2:%.*]] = load i32, ptr [[ret_val]], align 4
// LLVM: ret i32 [[tmp2]]

int g3() {
auto* fn = +[](int const& i) -> int { return i; };
auto task = fn(3);
Expand Down Expand Up @@ -134,3 +228,60 @@ int g3() {
// CHECK: }

// CHECK: }

// lambda operator()
// FIXME: argument attributes should be emitted
// COM: LLVM: define internal noundef i32 @"_ZZ2g3vENK3$_0clERKi"(ptr noundef nonnull align 1 dereferenceable(1) {{%.*}}, ptr noundef nonnull align 4 dereferenceable(4){{%.*}}) #0 align 2
// LLVM: {{.*}}i32 @"_ZZ2g3vENK3$_0clERKi"(ptr {{%.*}}, ptr {{%.*}})

// lambda __invoke()
// LLVM: {{.*}}i32 @"_ZZ2g3vEN3$_08__invokeERKi"(ptr [[i:%.*]])
// LLVM: [[i_addr:%.*]] = alloca ptr, i64 1, align 8
// LLVM: [[ret_val:%.*]] = alloca i32, i64 1, align 4
// LLVM: [[unused_capture:%.*]] = alloca %class.anon.5, i64 1, align 1
// LLVM: store ptr [[i]], ptr [[i_addr]], align 8
// LLVM: [[TMP0:%.*]] = load ptr, ptr [[i_addr]], align 8
// FIXME: call and argument attributes should be emitted
// COM: LLVM: [[CALL:%.*]] = call noundef i32 @"_ZZ2g3vENK3$_0clERKi"(ptr noundef nonnull align 1 dereferenceable(1) [[unused_capture]], ptr noundef nonnull align 4 dereferenceable(4) [[TMP0]])
// LLVM: [[CALL:%.*]] = call i32 @"_ZZ2g3vENK3$_0clERKi"(ptr [[unused_capture]], ptr [[TMP0]])
// LLVM: store i32 [[CALL]], ptr [[ret_val]], align 4
// FIXME: should just return result
// COM: LLVM: ret i32 [[ret_val]]
// LLVM: call void @llvm.trap()
// LLVM: unreachable

// lambda operator int (*)(int const&)()
// LLVM-LABEL: @"_ZZ2g3vENK3$_0cvPFiRKiEEv"
// LLVM: store ptr @"_ZZ2g3vEN3$_08__invokeERKi", ptr [[ret_val:%.*]], align 8
// LLVM: [[TMP0:%.*]] = load ptr, ptr [[ret_val]], align 8
// LLVM: ret ptr [[TMP0]]

// LLVM-LABEL: _Z2g3v
// LLVM-DAG: [[ref_tmp0:%.*]] = alloca %class.anon.5, i64 1, align 1
// LLVM-DAG: [[ref_tmp1:%.*]] = alloca i32, i64 1, align 4
// LLVM-DAG: [[ret_val:%.*]] = alloca i32, i64 1, align 4
// LLVM-DAG: [[fn_ptr:%.*]] = alloca ptr, i64 1, align 8
// LLVM-DAG: [[task:%.*]] = alloca i32, i64 1, align 4
// LLVM: br label %[[scope0_bb:[0-9]+]],

// LLVM: [[scope0_bb]]: {{.*}}; preds = %0
// LLVM: [[call:%.*]] = call ptr @"_ZZ2g3vENK3$_0cvPFiRKiEEv"(ptr [[ref_tmp0]])
// LLVM: br label %[[scope1_before:[0-9]+]],

// LLVM: [[scope1_before]]: {{.*}}; preds = %[[scope0_bb]]
// LLVM: [[tmp0:%.*]] = phi ptr [ [[call]], %[[scope0_bb]] ]
// LLVM: br label %[[scope1_bb:[0-9]+]],

// LLVM: [[scope1_bb]]: {{.*}}; preds = %[[scope1_before]]
// LLVM: [[fn:%.*]] = load ptr, ptr [[fn_ptr]], align 8
// LLVM: store i32 3, ptr [[ref_tmp1]], align 4
// LLVM: [[call1:%.*]] = call i32 [[fn]](ptr [[ref_tmp1]])
// LLVM: br label %[[ret_bb:[0-9]+]],

// LLVM: [[ret_bb]]: {{.*}}; preds = %[[scope1_bb]]
// LLVM: [[tmp1:%.*]] = phi i32 [ [[call1]], %[[scope1_bb]] ]
// LLVM: store i32 [[tmp1]], ptr [[task]], align 4
// LLVM: [[tmp2:%.*]] = load i32, ptr [[task]], align 4
// LLVM: store i32 [[tmp2]], ptr [[ret_val]], align 4
// LLVM: [[tmp3:%.*]] = load i32, ptr [[ret_val]], align 4
// LLVM: ret i32 [[tmp3]]