Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s |
| 2 | |
| 3 | typedef double * __attribute__((align_value(64))) aligned_double; |
| 4 | |
| 5 | void foo(aligned_double x, double * y __attribute__((align_value(32))), |
| 6 | double & z __attribute__((align_value(128)))) { }; |
| 7 | // CHECK: define void @_Z3fooPdS_Rd(double* align 64 %x, double* align 32 %y, double* dereferenceable(8) align 128 %z) |
| 8 | |
| 9 | struct ad_struct { |
| 10 | aligned_double a; |
| 11 | }; |
| 12 | |
| 13 | double *foo(ad_struct& x) { |
| 14 | // CHECK-LABEL: @_Z3fooR9ad_struct |
| 15 | |
| 16 | // CHECK: [[PTRINT1:%.+]] = ptrtoint |
| 17 | // CHECK: [[MASKEDPTR1:%.+]] = and i64 [[PTRINT1]], 63 |
| 18 | // CHECK: [[MASKCOND1:%.+]] = icmp eq i64 [[MASKEDPTR1]], 0 |
| 19 | // CHECK: call void @llvm.assume(i1 [[MASKCOND1]]) |
| 20 | return x.a; |
| 21 | } |
| 22 | |
| 23 | double *goo(ad_struct *x) { |
| 24 | // CHECK-LABEL: @_Z3gooP9ad_struct |
| 25 | |
| 26 | // CHECK: [[PTRINT2:%.+]] = ptrtoint |
| 27 | // CHECK: [[MASKEDPTR2:%.+]] = and i64 [[PTRINT2]], 63 |
| 28 | // CHECK: [[MASKCOND2:%.+]] = icmp eq i64 [[MASKEDPTR2]], 0 |
| 29 | // CHECK: call void @llvm.assume(i1 [[MASKCOND2]]) |
| 30 | return x->a; |
| 31 | } |
| 32 | |
| 33 | double *bar(aligned_double *x) { |
| 34 | // CHECK-LABEL: @_Z3barPPd |
| 35 | |
| 36 | // CHECK: [[PTRINT3:%.+]] = ptrtoint |
| 37 | // CHECK: [[MASKEDPTR3:%.+]] = and i64 [[PTRINT3]], 63 |
| 38 | // CHECK: [[MASKCOND3:%.+]] = icmp eq i64 [[MASKEDPTR3]], 0 |
| 39 | // CHECK: call void @llvm.assume(i1 [[MASKCOND3]]) |
| 40 | return *x; |
| 41 | } |
| 42 | |
| 43 | double *car(aligned_double &x) { |
| 44 | // CHECK-LABEL: @_Z3carRPd |
| 45 | |
| 46 | // CHECK: [[PTRINT4:%.+]] = ptrtoint |
| 47 | // CHECK: [[MASKEDPTR4:%.+]] = and i64 [[PTRINT4]], 63 |
| 48 | // CHECK: [[MASKCOND4:%.+]] = icmp eq i64 [[MASKEDPTR4]], 0 |
| 49 | // CHECK: call void @llvm.assume(i1 [[MASKCOND4]]) |
| 50 | return x; |
| 51 | } |
| 52 | |
| 53 | double *dar(aligned_double *x) { |
| 54 | // CHECK-LABEL: @_Z3darPPd |
| 55 | |
| 56 | // CHECK: [[PTRINT5:%.+]] = ptrtoint |
| 57 | // CHECK: [[MASKEDPTR5:%.+]] = and i64 [[PTRINT5]], 63 |
| 58 | // CHECK: [[MASKCOND5:%.+]] = icmp eq i64 [[MASKEDPTR5]], 0 |
| 59 | // CHECK: call void @llvm.assume(i1 [[MASKCOND5]]) |
| 60 | return x[5]; |
| 61 | } |
| 62 | |
| 63 | aligned_double eep(); |
| 64 | double *ret() { |
| 65 | // CHECK-LABEL: @_Z3retv |
| 66 | |
| 67 | // CHECK: [[PTRINT6:%.+]] = ptrtoint |
| 68 | // CHECK: [[MASKEDPTR6:%.+]] = and i64 [[PTRINT6]], 63 |
| 69 | // CHECK: [[MASKCOND6:%.+]] = icmp eq i64 [[MASKEDPTR6]], 0 |
| 70 | // CHECK: call void @llvm.assume(i1 [[MASKCOND6]]) |
| 71 | return eep(); |
| 72 | } |
| 73 | |
| 74 | double **no1(aligned_double *x) { |
| 75 | // CHECK-LABEL: @_Z3no1PPd |
| 76 | return x; |
| 77 | // CHECK-NOT: call void @llvm.assume |
| 78 | } |
| 79 | |
| 80 | double *&no2(aligned_double &x) { |
| 81 | // CHECK-LABEL: @_Z3no2RPd |
| 82 | return x; |
| 83 | // CHECK-NOT: call void @llvm.assume |
| 84 | } |
| 85 | |
| 86 | double **no3(aligned_double &x) { |
| 87 | // CHECK-LABEL: @_Z3no3RPd |
| 88 | return &x; |
| 89 | // CHECK-NOT: call void @llvm.assume |
| 90 | } |
| 91 | |
| 92 | double no3(aligned_double x) { |
| 93 | // CHECK-LABEL: @_Z3no3Pd |
| 94 | return *x; |
| 95 | // CHECK-NOT: call void @llvm.assume |
| 96 | } |
| 97 | |
| 98 | double *no4(aligned_double x) { |
| 99 | // CHECK-LABEL: @_Z3no4Pd |
| 100 | return x; |
| 101 | // CHECK-NOT: call void @llvm.assume |
| 102 | } |
| 103 | |