| // RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s |
| |
| // CHECK-LABEL: @test1 |
| int test1(int *a) { |
| // CHECK: [[PTRINT1:%.+]] = ptrtoint |
| // CHECK: [[MASKEDPTR1:%.+]] = and i64 [[PTRINT1]], 31 |
| // CHECK: [[MASKCOND1:%.+]] = icmp eq i64 [[MASKEDPTR1]], 0 |
| // CHECK: call void @llvm.assume(i1 [[MASKCOND1]]) |
| a = __builtin_assume_aligned(a, 32, 0ull); |
| return a[0]; |
| } |
| |
| // CHECK-LABEL: @test2 |
| int test2(int *a) { |
| // CHECK: [[PTRINT2:%.+]] = ptrtoint |
| // CHECK: [[MASKEDPTR2:%.+]] = and i64 [[PTRINT2]], 31 |
| // CHECK: [[MASKCOND2:%.+]] = icmp eq i64 [[MASKEDPTR2]], 0 |
| // CHECK: call void @llvm.assume(i1 [[MASKCOND2]]) |
| a = __builtin_assume_aligned(a, 32, 0); |
| return a[0]; |
| } |
| |
| // CHECK-LABEL: @test3 |
| int test3(int *a) { |
| // CHECK: [[PTRINT3:%.+]] = ptrtoint |
| // CHECK: [[MASKEDPTR3:%.+]] = and i64 [[PTRINT3]], 31 |
| // CHECK: [[MASKCOND3:%.+]] = icmp eq i64 [[MASKEDPTR3]], 0 |
| // CHECK: call void @llvm.assume(i1 [[MASKCOND3]]) |
| a = __builtin_assume_aligned(a, 32); |
| return a[0]; |
| } |
| |
| // CHECK-LABEL: @test4 |
| int test4(int *a, int b) { |
| // CHECK-DAG: [[PTRINT4:%.+]] = ptrtoint |
| // CHECK-DAG: [[CONV4:%.+]] = sext i32 |
| // CHECK: [[OFFSETPTR4:%.+]] = sub i64 [[PTRINT4]], [[CONV4]] |
| // CHECK: [[MASKEDPTR4:%.+]] = and i64 [[OFFSETPTR4]], 31 |
| // CHECK: [[MASKCOND4:%.+]] = icmp eq i64 [[MASKEDPTR4]], 0 |
| // CHECK: call void @llvm.assume(i1 [[MASKCOND4]]) |
| a = __builtin_assume_aligned(a, 32, b); |
| return a[0]; |
| } |
| |
| int *m1() __attribute__((assume_aligned(64))); |
| |
| // CHECK-LABEL: @test5 |
| int test5() { |
| return *m1(); |
| // CHECK: [[PTRINT5:%.+]] = ptrtoint |
| // CHECK: [[MASKEDPTR5:%.+]] = and i64 [[PTRINT5]], 63 |
| // CHECK: [[MASKCOND5:%.+]] = icmp eq i64 [[MASKEDPTR5]], 0 |
| // CHECK: call void @llvm.assume(i1 [[MASKCOND5]]) |
| } |
| |
| int *m2() __attribute__((assume_aligned(64, 12))); |
| |
| // CHECK-LABEL: @test6 |
| int test6() { |
| return *m2(); |
| // CHECK: [[PTRINT6:%.+]] = ptrtoint |
| // CHECK: [[OFFSETPTR6:%.+]] = sub i64 [[PTRINT6]], 12 |
| // CHECK: [[MASKEDPTR6:%.+]] = and i64 [[OFFSETPTR6]], 63 |
| // CHECK: [[MASKCOND6:%.+]] = icmp eq i64 [[MASKEDPTR6]], 0 |
| // CHECK: call void @llvm.assume(i1 [[MASKCOND6]]) |
| } |
| |
