1// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s 2 3typedef double * __attribute__((align_value(64))) aligned_double; 4 5void 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* align 128 dereferenceable(8) %z) 8 9struct ad_struct { 10 aligned_double a; 11}; 12 13double *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 23double *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 33double *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 43double *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 53double *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 63aligned_double eep(); 64double *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 74double **no1(aligned_double *x) { 75// CHECK-LABEL: @_Z3no1PPd 76 return x; 77// CHECK-NOT: call void @llvm.assume 78} 79 80double *&no2(aligned_double &x) { 81// CHECK-LABEL: @_Z3no2RPd 82 return x; 83// CHECK-NOT: call void @llvm.assume 84} 85 86double **no3(aligned_double &x) { 87// CHECK-LABEL: @_Z3no3RPd 88 return &x; 89// CHECK-NOT: call void @llvm.assume 90} 91 92double no3(aligned_double x) { 93// CHECK-LABEL: @_Z3no3Pd 94 return *x; 95// CHECK-NOT: call void @llvm.assume 96} 97 98double *no4(aligned_double x) { 99// CHECK-LABEL: @_Z3no4Pd 100 return x; 101// CHECK-NOT: call void @llvm.assume 102} 103 104