| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir |
| // RUN: FileCheck --check-prefix=CIR --input-file=%t.cir %s |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll |
| // RUN: FileCheck --check-prefix=LLVM --input-file=%t-cir.ll %s |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll |
| // RUN: FileCheck --check-prefix=OGCG --input-file=%t.ll %s |
| |
| // Should generate a union type with all members preserved. |
| union U { |
| bool b; |
| short s; |
| int i; |
| float f; |
| double d; |
| }; |
| // CIR: !rec_U = !cir.record<union "U" {!cir.bool, !s16i, !s32i, !cir.float, !cir.double}> |
| // LLVM: %union.U = type { double } |
| // OGCG: %union.U = type { double } |
| |
| void shouldGenerateUnionAccess(union U u) { |
| u.b = true; |
| u.b; |
| u.i = 1; |
| u.i; |
| u.f = 0.1F; |
| u.f; |
| u.d = 0.1; |
| u.d; |
| } |
| // CIR: cir.func {{.*}}shouldGenerateUnionAccess |
| // CIR: %[[#BASE:]] = cir.get_member %0[0] {name = "b"} : !cir.ptr<!rec_U> -> !cir.ptr<!cir.bool> |
| // CIR: cir.store{{.*}} %{{.+}}, %[[#BASE]] : !cir.bool, !cir.ptr<!cir.bool> |
| // CIR: cir.get_member %0[0] {name = "b"} : !cir.ptr<!rec_U> -> !cir.ptr<!cir.bool> |
| // CIR: %[[#BASE:]] = cir.get_member %0[2] {name = "i"} : !cir.ptr<!rec_U> -> !cir.ptr<!s32i> |
| // CIR: cir.store{{.*}} %{{.+}}, %[[#BASE]] : !s32i, !cir.ptr<!s32i> |
| // CIR: %[[#BASE:]] = cir.get_member %0[2] {name = "i"} : !cir.ptr<!rec_U> -> !cir.ptr<!s32i> |
| // CIR: %[[#BASE:]] = cir.get_member %0[3] {name = "f"} : !cir.ptr<!rec_U> -> !cir.ptr<!cir.float> |
| // CIR: cir.store{{.*}} %{{.+}}, %[[#BASE]] : !cir.float, !cir.ptr<!cir.float> |
| // CIR: %[[#BASE:]] = cir.get_member %0[3] {name = "f"} : !cir.ptr<!rec_U> -> !cir.ptr<!cir.float> |
| // CIR: %[[#BASE:]] = cir.get_member %0[4] {name = "d"} : !cir.ptr<!rec_U> -> !cir.ptr<!cir.double> |
| // CIR: cir.store{{.*}} %{{.+}}, %[[#BASE]] : !cir.double, !cir.ptr<!cir.double> |
| // CIR: %[[#BASE:]] = cir.get_member %0[4] {name = "d"} : !cir.ptr<!rec_U> -> !cir.ptr<!cir.double> |
| |
| // LLVM: define {{.*}}shouldGenerateUnionAccess |
| // LLVM: %[[BASE:.*]] = alloca %union.U |
| // LLVM: store %union.U %{{.*}}, ptr %[[BASE]] |
| // LLVM: store i8 1, ptr %[[BASE]] |
| // LLVM: store i32 1, ptr %[[BASE]] |
| // LLVM: store float 0x3FB99999A0000000, ptr %[[BASE]] |
| // LLVM: store double 1.000000e-01, ptr %[[BASE]] |
| |
| // OGCG: define {{.*}}shouldGenerateUnionAccess |
| // OGCG: %[[BASE:.*]] = alloca %union.U |
| // OGCG: %[[DIVE:.*]] = getelementptr inbounds nuw %union.U, ptr %[[BASE]], i32 0, i32 0 |
| // OGCG: store i64 %{{.*}}, ptr %[[DIVE]] |
| // OGCG: store i8 1, ptr %[[BASE]] |
| // OGCG: store i32 1, ptr %[[BASE]] |
| // OGCG: store float 0x3FB99999A0000000, ptr %[[BASE]] |
| // OGCG: store double 1.000000e-01, ptr %[[BASE]] |