1*67e74705SXin Li // RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s
2*67e74705SXin Li
3*67e74705SXin Li // CHECK-LABEL: @test1
test1(int * a)4*67e74705SXin Li int test1(int *a) {
5*67e74705SXin Li // CHECK: [[PTRINT1:%.+]] = ptrtoint
6*67e74705SXin Li // CHECK: [[MASKEDPTR1:%.+]] = and i64 [[PTRINT1]], 31
7*67e74705SXin Li // CHECK: [[MASKCOND1:%.+]] = icmp eq i64 [[MASKEDPTR1]], 0
8*67e74705SXin Li // CHECK: call void @llvm.assume(i1 [[MASKCOND1]])
9*67e74705SXin Li a = __builtin_assume_aligned(a, 32, 0ull);
10*67e74705SXin Li return a[0];
11*67e74705SXin Li }
12*67e74705SXin Li
13*67e74705SXin Li // CHECK-LABEL: @test2
test2(int * a)14*67e74705SXin Li int test2(int *a) {
15*67e74705SXin Li // CHECK: [[PTRINT2:%.+]] = ptrtoint
16*67e74705SXin Li // CHECK: [[MASKEDPTR2:%.+]] = and i64 [[PTRINT2]], 31
17*67e74705SXin Li // CHECK: [[MASKCOND2:%.+]] = icmp eq i64 [[MASKEDPTR2]], 0
18*67e74705SXin Li // CHECK: call void @llvm.assume(i1 [[MASKCOND2]])
19*67e74705SXin Li a = __builtin_assume_aligned(a, 32, 0);
20*67e74705SXin Li return a[0];
21*67e74705SXin Li }
22*67e74705SXin Li
23*67e74705SXin Li // CHECK-LABEL: @test3
test3(int * a)24*67e74705SXin Li int test3(int *a) {
25*67e74705SXin Li // CHECK: [[PTRINT3:%.+]] = ptrtoint
26*67e74705SXin Li // CHECK: [[MASKEDPTR3:%.+]] = and i64 [[PTRINT3]], 31
27*67e74705SXin Li // CHECK: [[MASKCOND3:%.+]] = icmp eq i64 [[MASKEDPTR3]], 0
28*67e74705SXin Li // CHECK: call void @llvm.assume(i1 [[MASKCOND3]])
29*67e74705SXin Li a = __builtin_assume_aligned(a, 32);
30*67e74705SXin Li return a[0];
31*67e74705SXin Li }
32*67e74705SXin Li
33*67e74705SXin Li // CHECK-LABEL: @test4
test4(int * a,int b)34*67e74705SXin Li int test4(int *a, int b) {
35*67e74705SXin Li // CHECK-DAG: [[PTRINT4:%.+]] = ptrtoint
36*67e74705SXin Li // CHECK-DAG: [[CONV4:%.+]] = sext i32
37*67e74705SXin Li // CHECK: [[OFFSETPTR4:%.+]] = sub i64 [[PTRINT4]], [[CONV4]]
38*67e74705SXin Li // CHECK: [[MASKEDPTR4:%.+]] = and i64 [[OFFSETPTR4]], 31
39*67e74705SXin Li // CHECK: [[MASKCOND4:%.+]] = icmp eq i64 [[MASKEDPTR4]], 0
40*67e74705SXin Li // CHECK: call void @llvm.assume(i1 [[MASKCOND4]])
41*67e74705SXin Li a = __builtin_assume_aligned(a, 32, b);
42*67e74705SXin Li return a[0];
43*67e74705SXin Li }
44*67e74705SXin Li
45*67e74705SXin Li int *m1() __attribute__((assume_aligned(64)));
46*67e74705SXin Li
47*67e74705SXin Li // CHECK-LABEL: @test5
test5()48*67e74705SXin Li int test5() {
49*67e74705SXin Li return *m1();
50*67e74705SXin Li // CHECK: [[PTRINT5:%.+]] = ptrtoint
51*67e74705SXin Li // CHECK: [[MASKEDPTR5:%.+]] = and i64 [[PTRINT5]], 63
52*67e74705SXin Li // CHECK: [[MASKCOND5:%.+]] = icmp eq i64 [[MASKEDPTR5]], 0
53*67e74705SXin Li // CHECK: call void @llvm.assume(i1 [[MASKCOND5]])
54*67e74705SXin Li }
55*67e74705SXin Li
56*67e74705SXin Li int *m2() __attribute__((assume_aligned(64, 12)));
57*67e74705SXin Li
58*67e74705SXin Li // CHECK-LABEL: @test6
test6()59*67e74705SXin Li int test6() {
60*67e74705SXin Li return *m2();
61*67e74705SXin Li // CHECK: [[PTRINT6:%.+]] = ptrtoint
62*67e74705SXin Li // CHECK: [[OFFSETPTR6:%.+]] = sub i64 [[PTRINT6]], 12
63*67e74705SXin Li // CHECK: [[MASKEDPTR6:%.+]] = and i64 [[OFFSETPTR6]], 63
64*67e74705SXin Li // CHECK: [[MASKCOND6:%.+]] = icmp eq i64 [[MASKEDPTR6]], 0
65*67e74705SXin Li // CHECK: call void @llvm.assume(i1 [[MASKCOND6]])
66*67e74705SXin Li }
67*67e74705SXin Li
68