diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/pr61839_2.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr61839_2.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr61839_2.c b/gcc/testsuite/gcc.dg/tree-ssa/pr61839_2.c new file mode 100644 index 00000000000..ffa00a7e674 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr61839_2.c @@ -0,0 +1,54 @@ +/* PR tree-optimization/61839. */ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-vrp1" } */ +/* { dg-require-effective-target int32plus } */ + +__attribute__ ((noinline)) +int foo () +{ + int a = -1; + volatile unsigned b = 1U; + int c = 1; + c = (a + 972195718) / (b ? 1 : 0); + if (c == 972195717) + ; + else + __builtin_abort (); + return 0; +} + +__attribute__ ((noinline)) +int bar () +{ + int a = -1; + volatile unsigned b = 1U; + int c = 1; + c = (a + 972195718) % (b ? 1 : 0); + if (c == 972195717) + ; + else + __builtin_abort (); + return 0; +} + +__attribute__ ((noinline)) +int bar2 () +{ + int a = -1; + volatile unsigned b = 1U; + int c = 1; + c = (a + 972195716) % (b ? 1 : 2); + if (c == 972195715) + ; + else + __builtin_abort (); + return 0; +} + + +/* Dont optimize 972195717 / 0 in function foo. */ +/* { dg-final { scan-tree-dump-times "972195717 / _" 1 "vrp1" } } */ +/* Dont optimize 972195717 % 0 in function bar. */ +/* { dg-final { scan-tree-dump-times "972195717 % _" 1 "vrp1" } } */ +/* Optimize in function bar2. */ +/* { dg-final { scan-tree-dump-times "972195715 % _" 0 "vrp1" } } */ |