1 // REQUIRES: x86-registered-target
2 // RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-unknown-linux -emit-llvm %s -o - | FileCheck %s
3 
4 // CHECK-LABEL: define{{.*}} void @test_memcpy_inline_0(i8* noundef %dst, i8* noundef %src)
5 void test_memcpy_inline_0(void *dst, const void *src) {
6   // CHECK:   call void @llvm.memcpy.inline.p0i8.p0i8.i64(i8* align 1 %0, i8* align 1 %1, i64 0, i1 false)
7   __builtin_memcpy_inline(dst, src, 0);
8 }
9 
10 // CHECK-LABEL: define{{.*}} void @test_memcpy_inline_1(i8* noundef %dst, i8* noundef %src)
11 void test_memcpy_inline_1(void *dst, const void *src) {
12   // CHECK:   call void @llvm.memcpy.inline.p0i8.p0i8.i64(i8* align 1 %0, i8* align 1 %1, i64 1, i1 false)
13   __builtin_memcpy_inline(dst, src, 1);
14 }
15 
16 // CHECK-LABEL: define{{.*}} void @test_memcpy_inline_4(i8* noundef %dst, i8* noundef %src)
17 void test_memcpy_inline_4(void *dst, const void *src) {
18   // CHECK:   call void @llvm.memcpy.inline.p0i8.p0i8.i64(i8* align 1 %0, i8* align 1 %1, i64 4, i1 false)
19   __builtin_memcpy_inline(dst, src, 4);
20 }
21 
22 // CHECK-LABEL: define{{.*}} void @test_memcpy_inline_aligned_buffers(i64* noundef %dst, i64* noundef %src)
23 void test_memcpy_inline_aligned_buffers(unsigned long long *dst, const unsigned long long *src) {
24   // CHECK:   call void @llvm.memcpy.inline.p0i8.p0i8.i64(i8* align 8 %1, i8* align 8 %3, i64 4, i1 false)
25   __builtin_memcpy_inline(dst, src, 4);
26 }
27