clang/test/CodeGen/address-space-field1.c

   1 // RUN: %clang_cc1 -emit-llvm -triple x86_64-apple-darwin10 < %s -o - | FileCheck %s
   2 // CHECK:%struct.S = type { i32, i32 }
   3 // CHECK:define{{.*}} void @test_addrspace(ptr addrspace(1) noundef %p1, ptr addrspace(2) noundef %p2) [[NUW:#[0-9]+]]
   4 // CHECK:  [[p1addr:%.*]] = alloca ptr addrspace(1)
   5 // CHECK:  [[p2addr:%.*]] = alloca ptr addrspace(2)
   6 // CHECK:  store ptr addrspace(1) %p1, ptr [[p1addr]]
   7 // CHECK:  store ptr addrspace(2) %p2, ptr [[p2addr]]
   8 // CHECK:  [[t0:%.*]] = load ptr addrspace(2), ptr [[p2addr]], align 8
   9 // CHECK:  [[t1:%.*]] = getelementptr inbounds %struct.S, ptr addrspace(2) [[t0]], i32 0, i32 1
  10 // CHECK:  [[t2:%.*]] = load i32, ptr addrspace(2) [[t1]], align 4
  11 // CHECK:  [[t3:%.*]] = load ptr addrspace(1), ptr [[p1addr]], align 8
  12 // CHECK:  [[t4:%.*]] = getelementptr inbounds %struct.S, ptr addrspace(1) [[t3]], i32 0, i32 0
  13 // CHECK:  store i32 [[t2]], ptr addrspace(1) [[t4]], align 4
  14 // CHECK:  [[t5:%.*]] = load ptr addrspace(2), ptr [[p2addr]], align 8
  15 // CHECK:  [[t6:%.*]] = getelementptr inbounds %struct.S, ptr addrspace(2) [[t5]], i32 0, i32 0
  16 // CHECK:  [[t7:%.*]] = load i32, ptr addrspace(2) [[t6]], align 4
  17 // CHECK:  [[t8:%.*]] = load ptr addrspace(1), ptr [[p1addr]], align 8
  18 // CHECK:  [[t9:%.*]] = getelementptr inbounds %struct.S, ptr addrspace(1) [[t8]], i32 0, i32 1
  19 // CHECK:  store i32 [[t7]], ptr addrspace(1) [[t9]], align 4
  20 // CHECK:  ret void
  21 // CHECK:}
  22
  23 // Check that we don't lose the address space when accessing a member
  24 // of a structure.
  25
  26 #define __addr1    __attribute__((address_space(1)))
  27 #define __addr2    __attribute__((address_space(2)))
  28
  29 typedef struct S {
  30   int a;
  31   int b;
  32 } S;
  33
  34 void test_addrspace(__addr1 S* p1, __addr2 S*p2) {
  35   // swap
  36   p1->a = p2->b;
  37   p1->b = p2->a;
  38 }
  39
  40 // CHECK: attributes [[NUW]] = { noinline nounwind{{.*}} }