clang/test/CodeGen/address-space-ptr32.c

   1 // RUN: %clang_cc1 -triple x86_64-windows-msvc -fms-extensions -emit-llvm < %s | FileCheck %s
   2
   3 _Static_assert(sizeof(void *) == 8, "sizeof(void *) has unexpected value.  Expected 8.");
   4
   5 int foo(void) {
   6   // CHECK: define dso_local i32 @foo
   7   // CHECK: %a = alloca ptr addrspace(270), align 4
   8   // CHECK: ret i32 4
   9   int (*__ptr32 a)(int);
  10   return sizeof(a);
  11 }
  12
  13 int bar(void) {
  14   // CHECK: define dso_local i32 @bar
  15   // CHECK: %p = alloca ptr addrspace(270), align 4
  16   // CHECK: ret i32 4
  17   int *__ptr32 p;
  18   return sizeof(p);
  19 }
  20
  21
  22 int baz(void) {
  23   // CHECK: define dso_local i32 @baz
  24   // CHECK: %p = alloca ptr addrspace(270), align 4
  25   // CHECK: ret i32 4
  26   typedef int *__ptr32 IP32_PTR;
  27
  28   IP32_PTR p;
  29   return sizeof(p);
  30 }
  31
  32 int fugu(void) {
  33   // CHECK: define dso_local i32 @fugu
  34   // CHECK: %p = alloca ptr addrspace(270), align 4
  35   // CHECK: ret i32 4
  36   typedef int *int_star;
  37
  38   int_star __ptr32 p;
  39   return sizeof(p);
  40 }
  41
  42 typedef __SIZE_TYPE__ size_t;
  43 size_t strlen(const char *);
  44
  45 size_t test_calling_strlen_with_32_bit_pointer ( char *__ptr32 s ) {
  46   // CHECK-LABEL: define dso_local i64 @test_calling_strlen_with_32_bit_pointer(ptr addrspace(270) noundef %s)
  47   // CHECK-NEXT: entry:
  48   // CHECK-NEXT:   %s.addr = alloca ptr addrspace(270), align 4
  49   // CHECK-NEXT:   store ptr addrspace(270) %s, ptr %s.addr, align 4
  50   // CHECK-NEXT:   %0 = load ptr addrspace(270), ptr %s.addr, align 4
  51   // CHECK-NEXT:   %1 = addrspacecast ptr addrspace(270) %0 to ptr
  52   // CHECK-NEXT:   %call = call i64 @strlen(ptr  noundef %1)
  53   // CHECK-NEXT:   ret i64 %call
  54    return strlen ( s );
  55 }
  56
  57 // CHECK-LABEL: declare dso_local i64 @strlen(ptr noundef)
  58
  59 size_t test_calling_strlen_with_64_bit_pointer ( char *s ) {
  60   // CHECK-LABEL: define dso_local i64 @test_calling_strlen_with_64_bit_pointer(ptr noundef %s)
  61   // CHECK-NEXT: entry:
  62   // CHECK-NEXT:   %s.addr = alloca ptr, align 8
  63   // CHECK-NEXT:   store ptr %s, ptr %s.addr, align 8
  64   // CHECK-NEXT:   %0 = load ptr, ptr %s.addr, align 8
  65   // CHECK-NEXT:   %call = call i64 @strlen(ptr noundef %0)
  66   // CHECK-NEXT:   ret i64 %call
  67   return strlen ( s );
  68 }