gcc/patches/gcc46-Woverlength-string-asm.patch0

   1 2011-02-02  Tom Tromey  <tromey@redhat.com>
   2
   3         * c-parser.c (c_parser_asm_string_literal): Clear
   4         warn_overlength_strings.
   5
   6         * gcc.dg/Woverlength-strings-pedantic-c90-asm.c: New file.
   7         * gcc.dg/Woverlength-strings-pedantic-c89-asm.c: New file.
   8         * gcc.dg/Woverlength-strings-pedantic-c99-asm.c: New file.
   9
  10 --- gcc/c-parser.c
  11 +++ gcc/c-parser.c
  12 @@ -3264,6 +3264,8 @@ static tree
  13  c_parser_asm_string_literal (c_parser *parser)
  14  {
  15    tree str;
  16 +  int save_flag = warn_overlength_strings;
  17 +  warn_overlength_strings = 0;
  18    if (c_parser_next_token_is (parser, CPP_STRING))
  19      {
  20        str = c_parser_peek_token (parser)->value;
  21 @@ -3281,6 +3283,7 @@ c_parser_asm_string_literal (c_parser *parser)
  22        c_parser_error (parser, "expected string literal");
  23        str = NULL_TREE;
  24      }
  25 +  warn_overlength_strings = save_flag;
  26    return str;
  27  }
  28
  29 --- gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c89-asm.c
  30 +++ gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c89-asm.c
  31 @@ -0,0 +1,47 @@
  32 +/* -Woverlength-strings complains about string constants which are too long
  33 +   for the C standard's "minimum maximum" limits.  It is off by default,
  34 +   but implied by -pedantic.  */
  35 +
  36 +/* { dg-options "-std=c89 -pedantic" } */
  37 +
  38 +#define TEN "          "
  39 +#define HUN TEN TEN TEN TEN TEN  TEN TEN TEN TEN TEN
  40 +#define THO HUN HUN HUN HUN HUN  HUN HUN HUN HUN HUN
  41 +
  42 +/* C89's minimum-maximum is 509. */
  43 +__asm__ (HUN HUN HUN HUN HUN TEN);
  44 +
  45 +/* C99's minimum-maximum is 4095.  */
  46 +__asm__ (
  47 +  THO THO THO THO     /* 4000 */
  48 +  TEN TEN TEN TEN TEN /* 4050 */
  49 +  TEN TEN TEN TEN     /* 4090 */
  50 +  "123456");
  51 +
  52 +void
  53 +f (void)
  54 +{
  55 +  /* C89's minimum-maximum is 509. */
  56 +  __asm__ (HUN HUN HUN HUN HUN TEN);
  57 +  __asm__ (HUN HUN HUN HUN HUN TEN : : );
  58 +  __asm__ goto (HUN HUN HUN HUN HUN TEN : : : : label);
  59 +
  60 +  /* C99's minimum-maximum is 4095.  */
  61 +  __asm__ (
  62 +          THO THO THO THO     /* 4000 */
  63 +          TEN TEN TEN TEN TEN /* 4050 */
  64 +          TEN TEN TEN TEN     /* 4090 */
  65 +          "123456");
  66 +  __asm__ (
  67 +          THO THO THO THO     /* 4000 */
  68 +          TEN TEN TEN TEN TEN /* 4050 */
  69 +          TEN TEN TEN TEN     /* 4090 */
  70 +          "123456" : : );
  71 +  __asm__ goto (
  72 +               THO THO THO THO     /* 4000 */
  73 +               TEN TEN TEN TEN TEN /* 4050 */
  74 +               TEN TEN TEN TEN     /* 4090 */
  75 +               "123456" : : : : label);
  76 +
  77 + label: ;
  78 +}
  79 --- gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c90-asm.c
  80 +++ gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c90-asm.c
  81 @@ -0,0 +1,48 @@
  82 +/* -Woverlength-strings complains about string constants which are too long
  83 +   for the C standard's "minimum maximum" limits.  It is off by default,
  84 +   but implied by -pedantic.  */
  85 +
  86 +/* { dg-options "-std=c90 -pedantic" } */
  87 +
  88 +#define TEN "          "
  89 +#define HUN TEN TEN TEN TEN TEN  TEN TEN TEN TEN TEN
  90 +#define THO HUN HUN HUN HUN HUN  HUN HUN HUN HUN HUN
  91 +
  92 +/* C89's minimum-maximum is 509. */
  93 +__asm__ (HUN HUN HUN HUN HUN TEN);
  94 +
  95 +/* C99's minimum-maximum is 4095.  */
  96 +__asm__ (
  97 +  THO THO THO THO     /* 4000 */
  98 +  TEN TEN TEN TEN TEN /* 4050 */
  99 +  TEN TEN TEN TEN     /* 4090 */
 100 +  "123456");
 101 +
 102 +void
 103 +f (void)
 104 +{
 105 +  /* C89's minimum-maximum is 509. */
 106 +  __asm__ (HUN HUN HUN HUN HUN TEN);
 107 +  __asm__ (HUN HUN HUN HUN HUN TEN : :);
 108 +  __asm__ goto (HUN HUN HUN HUN HUN TEN : : : : label);
 109 +
 110 +  /* C99's minimum-maximum is 4095.  */
 111 +  __asm__ (
 112 +          THO THO THO THO     /* 4000 */
 113 +          TEN TEN TEN TEN TEN /* 4050 */
 114 +          TEN TEN TEN TEN     /* 4090 */
 115 +          "123456");
 116 +  __asm__ (
 117 +          THO THO THO THO     /* 4000 */
 118 +          TEN TEN TEN TEN TEN /* 4050 */
 119 +          TEN TEN TEN TEN     /* 4090 */
 120 +          "123456" : :);
 121 +  __asm__ goto (
 122 +               THO THO THO THO     /* 4000 */
 123 +               TEN TEN TEN TEN TEN /* 4050 */
 124 +               TEN TEN TEN TEN     /* 4090 */
 125 +               "123456" : : : : label);
 126 +
 127 + label: ;
 128 +}
 129 +
 130 --- gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c99-asm.c
 131 +++ gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c99-asm.c
 132 @@ -0,0 +1,48 @@
 133 +/* -Woverlength-strings complains about string constants which are too long
 134 +   for the C standard's "minimum maximum" limits.  It is off by default,
 135 +   but implied by -pedantic.  */
 136 +
 137 +/* { dg-options "-std=c99 -pedantic" } */
 138 +
 139 +#define TEN "          "
 140 +#define HUN TEN TEN TEN TEN TEN  TEN TEN TEN TEN TEN
 141 +#define THO HUN HUN HUN HUN HUN  HUN HUN HUN HUN HUN
 142 +
 143 +/* C89's minimum-maximum is 509. */
 144 +__asm__ (HUN HUN HUN HUN HUN TEN);
 145 +
 146 +/* C99's minimum-maximum is 4095.  */
 147 +__asm__ (
 148 +  THO THO THO THO     /* 4000 */
 149 +  TEN TEN TEN TEN TEN /* 4050 */
 150 +  TEN TEN TEN TEN     /* 4090 */
 151 +  "123456");
 152 +
 153 +void
 154 +f (void)
 155 +{
 156 +  /* C89's minimum-maximum is 509. */
 157 +  __asm__ (HUN HUN HUN HUN HUN TEN);
 158 +  __asm__ (HUN HUN HUN HUN HUN TEN : :);
 159 +  __asm__ goto (HUN HUN HUN HUN HUN TEN : : : : label);
 160 +
 161 +  /* C99's minimum-maximum is 4095.  */
 162 +  __asm__ (
 163 +          THO THO THO THO     /* 4000 */
 164 +          TEN TEN TEN TEN TEN /* 4050 */
 165 +          TEN TEN TEN TEN     /* 4090 */
 166 +          "123456");
 167 +  __asm__ (
 168 +          THO THO THO THO     /* 4000 */
 169 +          TEN TEN TEN TEN TEN /* 4050 */
 170 +          TEN TEN TEN TEN     /* 4090 */
 171 +          "123456" : :);
 172 +  __asm__ goto (
 173 +               THO THO THO THO     /* 4000 */
 174 +               TEN TEN TEN TEN TEN /* 4050 */
 175 +               TEN TEN TEN TEN     /* 4090 */
 176 +               "123456" : : : : label);
 177 +
 178 + label: ;
 179 +}
 180 +