| // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py |
| // RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s |
| |
| char buffer[32] = "This is a largely unused buffer"; |
| |
| // __builtin___clear_cache always maps to @llvm.clear_cache, but what |
| // each back-end produces is different, and this is tested in LLVM |
| |
| // CHECK-LABEL: define {{[^@]+}}@main( |
| // CHECK-NEXT: entry: |
| // CHECK-NEXT: [[RETVAL:%.*]] = alloca i32, align 4 |
| // CHECK-NEXT: store i32 0, ptr [[RETVAL]], align 4 |
| // CHECK-NEXT: call void @llvm.clear_cache(ptr @buffer, ptr getelementptr inbounds (i8, ptr @buffer, i64 32)) |
| // CHECK-NEXT: ret i32 0 |
| // |
| int main(void) { |
| __builtin___clear_cache(buffer, buffer+32); |
| return 0; |
| } |