reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -O0 -ffake-address-space-map -cl-std=CL2.0 -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -O0 -cl-std=CL2.0 -emit-llvm -o - | FileCheck --check-prefix=CHECK-NOFAKE %s
// When -ffake-address-space-map is not used, all addr space mapped to 0 for x86_64.

// test that we generate address space casts everywhere we need conversions of
// pointers to different address spaces

// CHECK: define void @test
void test(global int *arg_glob, generic int *arg_gen) {
  int var_priv;
  arg_gen = arg_glob; // implicit cast global -> generic
  // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(4)*
  // CHECK-NOFAKE-NOT: addrspacecast

  arg_gen = &var_priv; // implicit cast with obtaining adr, private -> generic
  // CHECK: %{{[._a-z0-9]+}} = addrspacecast i32* %{{[._a-z0-9]+}} to i32 addrspace(4)*
  // CHECK-NOFAKE-NOT: addrspacecast

  arg_glob = (global int *)arg_gen; // explicit cast
  // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(4)* %{{[0-9]+}} to i32 addrspace(1)*
  // CHECK-NOFAKE-NOT: addrspacecast

  global int *var_glob =
      (global int *)arg_glob; // explicit cast in the same address space
  // CHECK-NOT: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(1)*
  // CHECK-NOFAKE-NOT: addrspacecast

  var_priv = arg_gen - arg_glob; // arithmetic operation
  // CHECK: %{{.*}} = ptrtoint i32 addrspace(4)* %{{.*}} to i64
  // CHECK: %{{.*}} = ptrtoint i32 addrspace(1)* %{{.*}} to i64
  // CHECK-NOFAKE: %{{.*}} = ptrtoint i32* %{{.*}} to i64
  // CHECK-NOFAKE: %{{.*}} = ptrtoint i32* %{{.*}} to i64

  var_priv = arg_gen > arg_glob; // comparison
  // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(4)*

  generic void *var_gen_v = arg_glob;
  // CHECK: addrspacecast
  // CHECK-NOT: bitcast
  // CHECK-NOFAKE: bitcast
  // CHECK-NOFAKE-NOT: addrspacecast
}

// Test ternary operator.
// CHECK: define void @test_ternary
void test_ternary(void) {
  global int *var_glob;
  generic int *var_gen;
  generic int *var_gen2;
  generic float *var_gen_f;
  generic void *var_gen_v;

  var_gen = var_gen ? var_gen : var_gen2; // operands of the same addr spaces and the same type
  // CHECK: icmp
  // CHECK-NOT: addrspacecast
  // CHECK-NOT: bitcast
  // CHECK: phi
  // CHECK: store i32 addrspace(4)* %{{.+}}, i32 addrspace(4)** %{{.+}}

  var_gen = var_gen ? var_gen : var_glob; // operands of overlapping addr spaces and the same type
  // CHECK: icmp
  // CHECK-NOT: bitcast
  // CHECK: %{{.+}} = addrspacecast i32 addrspace(1)* %{{.+}} to i32 addrspace(4)*
  // CHECK: phi
  // CHECK: store

  typedef int int_t;
  global int_t *var_glob_typedef;
  var_gen = var_gen ? var_gen : var_glob_typedef; // operands of overlapping addr spaces and equivalent types
  // CHECK: icmp
  // CHECK-NOT: bitcast
  // CHECK: %{{.+}} = addrspacecast i32 addrspace(1)* %{{.+}} to i32 addrspace(4)*
  // CHECK: phi
  // CHECK: store
 
  var_gen_v = var_gen ? var_gen : var_gen_f; // operands of the same addr space and different types
  // CHECK: icmp
  // CHECK: %{{.+}} = bitcast i32 addrspace(4)* %{{.+}} to i8 addrspace(4)*
  // CHECK: %{{.+}} = bitcast float addrspace(4)* %{{.+}} to i8 addrspace(4)*
  // CHECK: phi
  // CHECK: store

  var_gen_v = var_gen ? var_glob : var_gen_f; // operands of overlapping addr spaces and different types
  // CHECK: icmp
  // CHECK: %{{.+}} = addrspacecast i32 addrspace(1)* %{{.+}} to i8 addrspace(4)*
  // CHECK: %{{.+}} = bitcast float addrspace(4)* %{{.+}} to i8 addrspace(4)*
  // CHECK: phi
  // CHECK: store
}