clang/test/CodeGen/SystemZ/zos-mixed-ptr-sizes-malloc.c

   1 // RUN: %clang_cc1 -triple s390x-ibm-zos -O2 -emit-llvm %s -o - | FileCheck %s --check-prefix=X64
   2 #include <stddef.h>
   3 void *__malloc31(size_t);
   4
   5 int test_1() {
   6   // X64-LABEL: define {{.*}} i32 @test_1()
   7   // X64: ret i32 135
   8   int *__ptr32 a;
   9   int *b;
  10   int i;
  11   int sum1, sum2, sum3;
  12
  13   a = (int *__ptr32)__malloc31(sizeof(int) * 10);
  14
  15   b = a;
  16   sum1 = 0;
  17   for (i = 0; i < 10; ++i) {
  18     a[i] = i;
  19     sum1 += i;
  20   }
  21
  22   sum2 = 0;
  23   for (i = 0; i < 10; ++i) {
  24     sum2 += a[i];
  25   }
  26   sum3 = 0;
  27   for (i = 0; i < 10; ++i) {
  28     sum3 += b[i];
  29   }
  30
  31   return (sum1 + sum2 + sum3);
  32 }
  33
  34 int test_2() {
  35   // X64-LABEL: define {{.*}} i32 @test_2()
  36   // X64: ret i32 4
  37   int *a = (int *)__malloc31(sizeof(int));
  38   int *__ptr32 b;
  39
  40   *a = 99;
  41   b = a;
  42   *b = 44;
  43
  44   // Test should return 4
  45   return (*b - 40);
  46 }
  47
  48 int test_3() {
  49   // X64-LABEL: define {{.*}} i32 @test_3()
  50   // X64: ret i32 4
  51   int *a = (int *)__malloc31(sizeof(int));
  52   int *__ptr32 b;
  53
  54   *a = 99;
  55   b = a;
  56
  57   // Test should return 4
  58   return (*b - 95);
  59 }
  60
  61 int test_4() {
  62   // X64-LABEL: define {{.*}} i32 @test_4()
  63   // X64: ret i32 1
  64   int *a = (int *)__malloc31(sizeof(int));
  65   float *d = (float *)__malloc31(sizeof(float));
  66
  67   int *__ptr32 b;
  68   int *c;
  69
  70   float *__ptr32 e;
  71   float *f;
  72
  73   *a = 0;
  74   *d = 0.0;
  75
  76   b = a;
  77   c = a;
  78   e = d;
  79   f = d;
  80
  81   // Test should return 1
  82   return (b == c && e == f);
  83 }
  84