gnu/dist/gcc4/gcc/testsuite/gcc.dg/tree-ssa/stdarg-3.c

   1 /* First dg-final line after each function is for architectures that use
   2    a struct {...} va_list[1] with separate GPR and FPR counters in the
   3    structure.  Second dg-final line is for architectures that use void *
   4    or char * va_list.  */
   5 /* { dg-do compile } */
   6 /* { dg-options "-O2 -fdump-tree-stdarg" } */
   7
   8 #include <stdarg.h>
   9
  10 extern void foo (int, va_list);
  11 extern void bar (int);
  12 long x;
  13 va_list gap;
  14
  15 /* If va_list is not local variable, it escapes the function.  */
  16 void
  17 f1 (int i, ...)
  18 {
  19   va_start (gap, i);
  20   x = va_arg (gap, long);
  21   va_end (gap);
  22 }
  23 /* { dg-final { scan-tree-dump "f1: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */
  24 /* { dg-final { scan-tree-dump "f1: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */
  25 /* { dg-final { scan-tree-dump "f1: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target alpha*-*-linux* } } } */
  26 /* { dg-final { scan-tree-dump "f1: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */
  27 /* { dg-final { scan-tree-dump "f1: va_list escapes 1, needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */
  28 /* { dg-final { scan-tree-dump "f1: va_list escapes 1, needs to save all GPR units" "stdarg" { target ia64-*-* } } } */
  29 /* { dg-final { scan-tree-dump "f1: va_list escapes 1, needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */
  30
  31 void
  32 f2 (int i, ...)
  33 {
  34   va_start (gap, i);
  35   bar (i);
  36   va_end (gap);
  37 }
  38 /* { dg-final { scan-tree-dump "f2: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */
  39 /* { dg-final { scan-tree-dump "f2: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */
  40 /* { dg-final { scan-tree-dump "f2: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target alpha*-*-linux* } } } */
  41 /* { dg-final { scan-tree-dump "f2: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */
  42 /* { dg-final { scan-tree-dump "f2: va_list escapes 1, needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */
  43 /* { dg-final { scan-tree-dump "f2: va_list escapes 1, needs to save all GPR units" "stdarg" { target ia64-*-* } } } */
  44 /* { dg-final { scan-tree-dump "f2: va_list escapes 1, needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */
  45
  46 /* tree-stdarg.c only handles va_list variables, not arrays of them or
  47    va_list fields embedded in structures.  */
  48 void
  49 f3 (int i, ...)
  50 {
  51   va_list aps[10];
  52   va_start (aps[4], i);
  53   x = va_arg (aps[4], long);
  54   va_end (aps[4]);
  55 }
  56 /* { dg-final { scan-tree-dump "f3: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */
  57 /* { dg-final { scan-tree-dump "f3: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */
  58 /* { dg-final { scan-tree-dump "f3: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target alpha*-*-linux* } } } */
  59 /* { dg-final { scan-tree-dump "f3: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */
  60 /* { dg-final { scan-tree-dump "f3: va_list escapes 1, needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */
  61 /* { dg-final { scan-tree-dump "f3: va_list escapes 1, needs to save all GPR units" "stdarg" { target ia64-*-* } } } */
  62 /* { dg-final { scan-tree-dump "f3: va_list escapes 1, needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */
  63
  64 void
  65 f4 (int i, ...)
  66 {
  67   va_list aps[10];
  68   va_start (aps[4], i);
  69   bar (i);
  70   va_end (aps[4]);
  71 }
  72 /* { dg-final { scan-tree-dump "f4: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */
  73 /* { dg-final { scan-tree-dump "f4: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */
  74 /* { dg-final { scan-tree-dump "f4: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target alpha*-*-linux* } } } */
  75 /* { dg-final { scan-tree-dump "f4: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */
  76 /* { dg-final { scan-tree-dump "f4: va_list escapes 1, needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */
  77 /* { dg-final { scan-tree-dump "f4: va_list escapes 1, needs to save all GPR units" "stdarg" { target ia64-*-* } } } */
  78 /* { dg-final { scan-tree-dump "f4: va_list escapes 1, needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */
  79
  80 void
  81 f5 (int i, ...)
  82 {
  83   va_list aps[10];
  84   va_start (aps[4], i);
  85   foo (i, aps[4]);
  86   va_end (aps[4]);
  87 }
  88 /* { dg-final { scan-tree-dump "f5: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */
  89 /* { dg-final { scan-tree-dump "f5: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */
  90 /* { dg-final { scan-tree-dump "f5: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target alpha*-*-linux* } } } */
  91 /* { dg-final { scan-tree-dump "f5: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */
  92 /* { dg-final { scan-tree-dump "f5: va_list escapes 1, needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */
  93 /* { dg-final { scan-tree-dump "f5: va_list escapes 1, needs to save all GPR units" "stdarg" { target ia64-*-* } } } */
  94 /* { dg-final { scan-tree-dump "f5: va_list escapes 1, needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */
  95
  96 struct A { int i; va_list g; va_list h[2]; };
  97
  98 void
  99 f6 (int i, ...)
 100 {
 101   struct A a;
 102   va_start (a.g, i);
 103   x = va_arg (a.g, long);
 104   va_end (a.g);
 105 }
 106 /* { dg-final { scan-tree-dump "f6: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */
 107 /* { dg-final { scan-tree-dump "f6: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */
 108 /* { dg-final { scan-tree-dump "f6: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target alpha*-*-linux* } } } */
 109 /* { dg-final { scan-tree-dump "f6: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */
 110 /* { dg-final { scan-tree-dump "f6: va_list escapes 1, needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */
 111 /* { dg-final { scan-tree-dump "f6: va_list escapes 1, needs to save all GPR units" "stdarg" { target ia64-*-* } } } */
 112 /* { dg-final { scan-tree-dump "f6: va_list escapes 1, needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */
 113
 114 void
 115 f7 (int i, ...)
 116 {
 117   struct A a;
 118   va_start (a.g, i);
 119   bar (i);
 120   va_end (a.g);
 121 }
 122 /* { dg-final { scan-tree-dump "f7: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */
 123 /* { dg-final { scan-tree-dump "f7: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */
 124 /* { dg-final { scan-tree-dump "f7: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target alpha*-*-linux* } } } */
 125 /* { dg-final { scan-tree-dump "f7: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */
 126 /* { dg-final { scan-tree-dump "f7: va_list escapes 1, needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */
 127 /* { dg-final { scan-tree-dump "f7: va_list escapes 1, needs to save all GPR units" "stdarg" { target ia64-*-* } } } */
 128 /* { dg-final { scan-tree-dump "f7: va_list escapes 1, needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */
 129
 130 void
 131 f8 (int i, ...)
 132 {
 133   struct A a;
 134   va_start (a.g, i);
 135   foo (i, a.g);
 136   va_end (a.g);
 137 }
 138 /* { dg-final { scan-tree-dump "f8: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */
 139 /* { dg-final { scan-tree-dump "f8: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */
 140 /* { dg-final { scan-tree-dump "f8: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target alpha*-*-linux* } } } */
 141 /* { dg-final { scan-tree-dump "f8: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */
 142 /* { dg-final { scan-tree-dump "f8: va_list escapes 1, needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */
 143 /* { dg-final { scan-tree-dump "f8: va_list escapes 1, needs to save all GPR units" "stdarg" { target ia64-*-* } } } */
 144 /* { dg-final { scan-tree-dump "f8: va_list escapes 1, needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */
 145
 146 void
 147 f10 (int i, ...)
 148 {
 149   struct A a;
 150   va_start (a.h[1], i);
 151   x = va_arg (a.h[1], long);
 152   va_end (a.h[1]);
 153 }
 154 /* { dg-final { scan-tree-dump "f10: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */
 155 /* { dg-final { scan-tree-dump "f10: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */
 156 /* { dg-final { scan-tree-dump "f10: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target alpha*-*-linux* } } } */
 157 /* { dg-final { scan-tree-dump "f10: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */
 158 /* { dg-final { scan-tree-dump "f10: va_list escapes 1, needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */
 159 /* { dg-final { scan-tree-dump "f10: va_list escapes 1, needs to save all GPR units" "stdarg" { target ia64-*-* } } } */
 160 /* { dg-final { scan-tree-dump "f10: va_list escapes 1, needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */
 161
 162 void
 163 f11 (int i, ...)
 164 {
 165   struct A a;
 166   va_start (a.h[1], i);
 167   bar (i);
 168   va_end (a.h[1]);
 169 }
 170 /* { dg-final { scan-tree-dump "f11: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */
 171 /* { dg-final { scan-tree-dump "f11: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */
 172 /* { dg-final { scan-tree-dump "f11: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target alpha*-*-linux* } } } */
 173 /* { dg-final { scan-tree-dump "f11: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */
 174 /* { dg-final { scan-tree-dump "f11: va_list escapes 1, needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */
 175 /* { dg-final { scan-tree-dump "f11: va_list escapes 1, needs to save all GPR units" "stdarg" { target ia64-*-* } } } */
 176 /* { dg-final { scan-tree-dump "f11: va_list escapes 1, needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */
 177
 178 void
 179 f12 (int i, ...)
 180 {
 181   struct A a;
 182   va_start (a.h[1], i);
 183   foo (i, a.h[1]);
 184   va_end (a.h[1]);
 185 }
 186 /* { dg-final { scan-tree-dump "f12: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */
 187 /* { dg-final { scan-tree-dump "f12: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */
 188 /* { dg-final { scan-tree-dump "f12: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target alpha*-*-linux* } } } */
 189 /* { dg-final { scan-tree-dump "f12: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */
 190 /* { dg-final { scan-tree-dump "f12: va_list escapes 1, needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */
 191 /* { dg-final { scan-tree-dump "f12: va_list escapes 1, needs to save all GPR units" "stdarg" { target ia64-*-* } } } */
 192 /* { dg-final { scan-tree-dump "f12: va_list escapes 1, needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */
 193 /* { dg-final { cleanup-tree-dump "stdarg" } } */