gcc/testsuite/gcc.dg/tree-ssa/dump-6.c

   1 /* PR middle-end/90676 - default GIMPLE dumps lack information
   2    { dg-do compile }
   3    { dg-options "-O2 -fno-tree-vectorize -fdump-tree-store-merging" }
   4    { dg-require-effective-target int32plus }
   5    { dg-require-effective-target store_merge } */
   6
   7
   8 extern __attribute__((aligned(2))) char a2[2];
   9
  10 void f2 (void)
  11 {
  12   a2[0] = 1;
  13   a2[1] = 0;
  14 }
  15
  16 extern __attribute__((aligned(4))) char a4[4];
  17
  18 void f4 (void)
  19 {
  20   a4[0] = 1;
  21   a4[1] = 0;
  22   a4[2] = 0;
  23   a4[3] = 0;
  24 }
  25
  26 extern __attribute__((aligned(8))) char a8[8];
  27
  28 void f8 (void)
  29 {
  30   a8[0] = 1;
  31   for (int i = 1; i != 8; ++i)
  32     a8[i] = 0;
  33 }
  34
  35 /* { dg-final { scan-tree-dump "MEM <unsigned short> \\\[\\(char \\*\\)\\&a2] = " "store-merging" } }
  36    { dg-final { scan-tree-dump "MEM <unsigned int> \\\[\\(char \\*\\)\\&a4] = " "store-merging" } }
  37    { dg-final { scan-tree-dump "MEM <unsigned int> \\\[\\(char \\*\\)\\&a8] = " "store-merging" { target { ilp32 } } } }
  38    { dg-final { scan-tree-dump "MEM <unsigned long> \\\[\\(char \\*\\)\\&a8] = " "store-merging" { target { lp64 } } } } */