| Hal Finkel | bcc0608 | 2014-09-07 22:58:14 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s |
| 2 | |
| 3 | // CHECK-LABEL: @test1 |
| 4 | int test1(int *a) { |
| NAKAMURA Takumi | 4b04c11 | 2014-09-08 01:12:55 +0000 | [diff] [blame] | 5 | // CHECK: [[PTRINT1:%.+]] = ptrtoint |
| 6 | // CHECK: [[MASKEDPTR1:%.+]] = and i64 [[PTRINT1]], 31 |
| 7 | // CHECK: [[MASKCOND1:%.+]] = icmp eq i64 [[MASKEDPTR1]], 0 |
| 8 | // CHECK: call void @llvm.assume(i1 [[MASKCOND1]]) |
| Hal Finkel | bcc0608 | 2014-09-07 22:58:14 +0000 | [diff] [blame] | 9 | a = __builtin_assume_aligned(a, 32, 0ull); |
| 10 | return a[0]; |
| 11 | } |
| 12 | |
| 13 | // CHECK-LABEL: @test2 |
| 14 | int test2(int *a) { |
| NAKAMURA Takumi | 4b04c11 | 2014-09-08 01:12:55 +0000 | [diff] [blame] | 15 | // CHECK: [[PTRINT2:%.+]] = ptrtoint |
| 16 | // CHECK: [[MASKEDPTR2:%.+]] = and i64 [[PTRINT2]], 31 |
| 17 | // CHECK: [[MASKCOND2:%.+]] = icmp eq i64 [[MASKEDPTR2]], 0 |
| 18 | // CHECK: call void @llvm.assume(i1 [[MASKCOND2]]) |
| Hal Finkel | bcc0608 | 2014-09-07 22:58:14 +0000 | [diff] [blame] | 19 | a = __builtin_assume_aligned(a, 32, 0); |
| 20 | return a[0]; |
| 21 | } |
| 22 | |
| 23 | // CHECK-LABEL: @test3 |
| 24 | int test3(int *a) { |
| NAKAMURA Takumi | 4b04c11 | 2014-09-08 01:12:55 +0000 | [diff] [blame] | 25 | // CHECK: [[PTRINT3:%.+]] = ptrtoint |
| 26 | // CHECK: [[MASKEDPTR3:%.+]] = and i64 [[PTRINT3]], 31 |
| 27 | // CHECK: [[MASKCOND3:%.+]] = icmp eq i64 [[MASKEDPTR3]], 0 |
| 28 | // CHECK: call void @llvm.assume(i1 [[MASKCOND3]]) |
| Hal Finkel | bcc0608 | 2014-09-07 22:58:14 +0000 | [diff] [blame] | 29 | a = __builtin_assume_aligned(a, 32); |
| 30 | return a[0]; |
| 31 | } |
| 32 | |
| 33 | // CHECK-LABEL: @test4 |
| 34 | int test4(int *a, int b) { |
| NAKAMURA Takumi | 4b04c11 | 2014-09-08 01:12:55 +0000 | [diff] [blame] | 35 | // CHECK-DAG: [[PTRINT4:%.+]] = ptrtoint |
| 36 | // CHECK-DAG: [[CONV4:%.+]] = sext i32 |
| 37 | // CHECK: [[OFFSETPTR4:%.+]] = sub i64 [[PTRINT4]], [[CONV4]] |
| 38 | // CHECK: [[MASKEDPTR4:%.+]] = and i64 [[OFFSETPTR4]], 31 |
| 39 | // CHECK: [[MASKCOND4:%.+]] = icmp eq i64 [[MASKEDPTR4]], 0 |
| 40 | // CHECK: call void @llvm.assume(i1 [[MASKCOND4]]) |
| Hal Finkel | bcc0608 | 2014-09-07 22:58:14 +0000 | [diff] [blame] | 41 | a = __builtin_assume_aligned(a, 32, b); |
| 42 | return a[0]; |
| 43 | } |
| 44 | |
| Hal Finkel | ee90a22 | 2014-09-26 05:04:30 +0000 | [diff] [blame^] | 45 | int *m1() __attribute__((assume_aligned(64))); |
| 46 | |
| 47 | // CHECK-LABEL: @test5 |
| 48 | int test5() { |
| 49 | return *m1(); |
| 50 | // CHECK: %ptrint = ptrtoint |
| 51 | // CHECK: %maskedptr = and i64 %ptrint, 63 |
| 52 | // CHECK: %maskcond = icmp eq i64 %maskedptr, 0 |
| 53 | // CHECK: call void @llvm.assume(i1 %maskcond) |
| 54 | } |
| 55 | |
| 56 | int *m2() __attribute__((assume_aligned(64, 12))); |
| 57 | |
| 58 | // CHECK-LABEL: @test6 |
| 59 | int test6() { |
| 60 | return *m2(); |
| 61 | // CHECK: %ptrint = ptrtoint |
| 62 | // CHECK: %offsetptr = sub i64 %ptrint, 12 |
| 63 | // CHECK: %maskedptr = and i64 %offsetptr, 63 |
| 64 | // CHECK: %maskcond = icmp eq i64 %maskedptr, 0 |
| 65 | // CHECK: call void @llvm.assume(i1 %maskcond) |
| 66 | } |
| 67 | |