| // RUN: %clang_cc1 -std=c++20 %s -triple x86_64-linux -emit-llvm -o - | FileCheck %s |
| |
| // GH61417 |
| // Check that we don't attempt to compare the unnamed bitfields |
| struct A { |
| unsigned x : 1; |
| unsigned : 1; |
| |
| friend bool operator==(A, A); |
| }; |
| |
| |
| struct B { |
| unsigned x : 1; |
| unsigned : 31; |
| |
| friend bool operator==(B, B); |
| }; |
| |
| bool operator==(A, A) = default; |
| // CHECK: define{{.*}} @_Zeq1AS_ |
| // CHECK: %[[LHS:.+]] = alloca %struct.A, align 4 |
| // CHECK: %[[RHS:.+]] = alloca %struct.A, align 4 |
| // CHECK: %[[LHS_LOAD:.+]] = load i8, ptr %[[LHS]], align 4 |
| // CHECK: %[[LHS_CLEAR:.+]] = and i8 %[[LHS_LOAD]], 1 |
| // CHECK: %[[LHS_CAST:.+]] = zext i8 %[[LHS_CLEAR]] to i32 |
| |
| // CHECK: %[[RHS_LOAD:.+]] = load i8, ptr %[[RHS]] |
| // CHECK: %[[RHS_CLEAR:.+]] = and i8 %[[RHS_LOAD]], 1 |
| // CHECK: %[[RHS_CAST:.+]] = zext i8 %[[RHS_CLEAR]] to i32 |
| // CHECK: %[[CMP:.*]] = icmp eq i32 %[[LHS_CAST]], %[[RHS_CAST]] |
| // CHECK: ret i1 %[[CMP]] |
| |
| bool operator==(B, B) = default; |
| // CHECK: define{{.*}} @_Zeq1BS_ |
| // CHECK: %[[LHS_B:.+]] = alloca %struct.B, align 4 |
| // CHECK: %[[RHS_B:.+]] = alloca %struct.B, align 4 |
| // CHECK: %[[LHS_LOAD_B:.+]] = load i32, ptr %[[LHS_B]], align 4 |
| // CHECK: %[[LHS_CLEAR_B:.+]] = and i32 %[[LHS_LOAD_B]], 1 |
| |
| // CHECK: %[[RHS_LOAD_B:.+]] = load i32, ptr %[[RHS_B]] |
| // CHECK: %[[RHS_CLEAR_B:.+]] = and i32 %[[RHS_LOAD_B]], 1 |
| // CHECK: %[[CMP_B:.*]] = icmp eq i32 %[[LHS_CLEAR_B]], %[[RHS_CLEAR_B]] |
| // CHECK: ret i1 %[[CMP_B]] |
