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      1 // RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -O0 -ffake-address-space-map -cl-std=CL2.0 -emit-llvm -o - | FileCheck %s
      2 // RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -O0 -cl-std=CL2.0 -emit-llvm -o - | FileCheck --check-prefix=CHECK-NOFAKE %s
      3 // When -ffake-address-space-map is not used, all addr space mapped to 0 for x86_64.
      4 
      5 // test that we generate address space casts everywhere we need conversions of
      6 // pointers to different address spaces
      7 
      8 // CHECK: define void @test
      9 void test(global int *arg_glob, generic int *arg_gen) {
     10   int var_priv;
     11   arg_gen = arg_glob; // implicit cast global -> generic
     12   // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(4)*
     13   // CHECK-NOFAKE-NOT: addrspacecast
     14 
     15   arg_gen = &var_priv; // implicit cast with obtaining adr, private -> generic
     16   // CHECK: %{{[0-9]+}} = addrspacecast i32* %var_priv to i32 addrspace(4)*
     17   // CHECK-NOFAKE-NOT: addrspacecast
     18 
     19   arg_glob = (global int *)arg_gen; // explicit cast
     20   // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(4)* %{{[0-9]+}} to i32 addrspace(1)*
     21   // CHECK-NOFAKE-NOT: addrspacecast
     22 
     23   global int *var_glob =
     24       (global int *)arg_glob; // explicit cast in the same address space
     25   // CHECK-NOT: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(1)*
     26   // CHECK-NOFAKE-NOT: addrspacecast
     27 
     28   var_priv = arg_gen - arg_glob; // arithmetic operation
     29   // CHECK: %{{.*}} = ptrtoint i32 addrspace(4)* %{{.*}} to i64
     30   // CHECK: %{{.*}} = ptrtoint i32 addrspace(1)* %{{.*}} to i64
     31   // CHECK-NOFAKE: %{{.*}} = ptrtoint i32* %{{.*}} to i64
     32   // CHECK-NOFAKE: %{{.*}} = ptrtoint i32* %{{.*}} to i64
     33 
     34   var_priv = arg_gen > arg_glob; // comparison
     35   // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(4)*
     36 
     37   generic void *var_gen_v = arg_glob;
     38   // CHECK: addrspacecast
     39   // CHECK-NOT: bitcast
     40   // CHECK-NOFAKE: bitcast
     41   // CHECK-NOFAKE-NOT: addrspacecast
     42 }
     43 
     44 // Test ternary operator.
     45 // CHECK: define void @test_ternary
     46 void test_ternary(void) {
     47   global int *var_glob;
     48   generic int *var_gen;
     49   generic int *var_gen2;
     50   generic float *var_gen_f;
     51   generic void *var_gen_v;
     52 
     53   var_gen = var_gen ? var_gen : var_gen2; // operands of the same addr spaces and the same type
     54   // CHECK: icmp
     55   // CHECK-NOT: addrspacecast
     56   // CHECK-NOT: bitcast
     57   // CHECK: phi
     58   // CHECK: store i32 addrspace(4)* %{{.+}}, i32 addrspace(4)** %{{.+}}
     59 
     60   var_gen = var_gen ? var_gen : var_glob; // operands of overlapping addr spaces and the same type
     61   // CHECK: icmp
     62   // CHECK-NOT: bitcast
     63   // CHECK: %{{.+}} = addrspacecast i32 addrspace(1)* %{{.+}} to i32 addrspace(4)*
     64   // CHECK: phi
     65   // CHECK: store
     66 
     67   typedef int int_t;
     68   global int_t *var_glob_typedef;
     69   var_gen = var_gen ? var_gen : var_glob_typedef; // operands of overlapping addr spaces and equivalent types
     70   // CHECK: icmp
     71   // CHECK-NOT: bitcast
     72   // CHECK: %{{.+}} = addrspacecast i32 addrspace(1)* %{{.+}} to i32 addrspace(4)*
     73   // CHECK: phi
     74   // CHECK: store
     75  
     76   var_gen_v = var_gen ? var_gen : var_gen_f; // operands of the same addr space and different types
     77   // CHECK: icmp
     78   // CHECK: %{{.+}} = bitcast i32 addrspace(4)* %{{.+}} to i8 addrspace(4)*
     79   // CHECK: %{{.+}} = bitcast float addrspace(4)* %{{.+}} to i8 addrspace(4)*
     80   // CHECK: phi
     81   // CHECK: store
     82 
     83   var_gen_v = var_gen ? var_glob : var_gen_f; // operands of overlapping addr spaces and different types
     84   // CHECK: icmp
     85   // CHECK: %{{.+}} = addrspacecast i32 addrspace(1)* %{{.+}} to i8 addrspace(4)*
     86   // CHECK: %{{.+}} = bitcast float addrspace(4)* %{{.+}} to i8 addrspace(4)*
     87   // CHECK: phi
     88   // CHECK: store
     89 }
     90