| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir |
| // RUN: FileCheck --input-file=%t.cir %s --check-prefix=CIR |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll |
| // RUN: FileCheck --input-file=%t-cir.ll %s --check-prefix=LLVM |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll |
| // RUN: FileCheck --input-file=%t.ll %s --check-prefix=OGCG |
| |
| char buffer[32] = "This is a largely unused buffer"; |
| |
| // __builtin___clear_cache always maps to @llvm.clear_cache.p0, but what |
| // each back-end produces is different, and this is tested in LLVM |
| |
| // CIR-LABEL: main |
| // CIR: %[[VAL_1:.*]] = cir.get_global @buffer : !cir.ptr<!cir.array<!s8i x 32>> |
| // CIR: %[[VAL_2:.*]] = cir.cast array_to_ptrdecay %[[VAL_1]] : !cir.ptr<!cir.array<!s8i x 32>> -> !cir.ptr<!s8i> |
| // CIR: %[[VAL_3:.*]] = cir.cast bitcast %[[VAL_2]] : !cir.ptr<!s8i> -> !cir.ptr<!void> |
| // CIR: %[[VAL_4:.*]] = cir.get_global @buffer : !cir.ptr<!cir.array<!s8i x 32>> |
| // CIR: %[[VAL_5:.*]] = cir.cast array_to_ptrdecay %[[VAL_4]] : !cir.ptr<!cir.array<!s8i x 32>> |
| // CIR: %[[VAL_6:.*]] = cir.const #cir.int<32> : !s32i |
| // CIR: %[[VAL_7:.*]] = cir.ptr_stride %[[VAL_5]], %[[VAL_6]] : (!cir.ptr<!s8i>, !s32i) -> !cir.ptr<!s8i> |
| // CIR: %[[VAL_8:.*]] = cir.cast bitcast %[[VAL_7]] : !cir.ptr<!s8i> -> !cir.ptr<!void> |
| // CIR: cir.clear_cache %[[VAL_3]], %[[VAL_8]] : !cir.ptr<!void> |
| |
| // LLVM-LABEL: main |
| // LLVM: call void @llvm.clear_cache.p0(ptr @buffer, ptr getelementptr inbounds nuw (i8, ptr @buffer, i64 32)) |
| |
| // OGCG-LABEL: main |
| // OGCG: call void @llvm.clear_cache.p0(ptr @buffer, ptr getelementptr inbounds nuw (i8, ptr @buffer, i64 32)) |
| |
| int main(void) { |
| __builtin___clear_cache(buffer, buffer + 32); |
| return 0; |
| } |