1 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
2 // RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s
3 
4 char buffer[32] = "This is a largely unused buffer";
5 
6 // __builtin___clear_cache always maps to @llvm.clear_cache, but what
7 // each back-end produces is different, and this is tested in LLVM
8 
9 // CHECK-LABEL: @main(
10 // CHECK-NEXT:  entry:
11 // CHECK-NEXT:    [[RETVAL:%.*]] = alloca i32, align 4
12 // CHECK-NEXT:    store i32 0, i32* [[RETVAL]], align 4
13 // CHECK-NEXT:    call void @llvm.clear_cache(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @buffer, i64 0, i64 0), i8* getelementptr inbounds ([32 x i8], [32 x i8]* @buffer, i64 1, i64 0))
14 // CHECK-NEXT:    ret i32 0
15 //
16 int main(void) {
17   __builtin___clear_cache(buffer, buffer+32);
18   return 0;
19 }
20