Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-ssa/vrp08.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-do compile } */ /* { dg-options "-O2 -fno-tree-fre -fdisable-tree-evrp -fdump-tree-vrp1-details -fdelete-null-pointer-checks" } */ /* Compile with -fno-tree-fre -O2 to prevent CSEing *p. */ int foo (int a, int *p) { int x = *p + 2; int y = *p - 1; int z = *p + 9; /* This should be folded to if (1), but only one ASSERT_EXPR should be inserted. */ if (p) a = x + y + z; else a = x - y; return a; } /* Target disabling -fdelete-null-pointer-checks should not fold checks */ /* { dg-final { scan-tree-dump-times "Folding predicate p_.*to 1" 1 "vrp1" { target { ! keeps_null_pointer_checks } } } } */ /* { dg-final { scan-tree-dump-times "PREDICATE: p_.* ne_expr 0" 1 "vrp1" { target { ! keeps_null_pointer_checks } } } } */ /* { dg-final { scan-tree-dump-times "Folding predicate p_.*to 1" 0 "vrp1" { target { keeps_null_pointer_checks } } } } */