Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-15.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 -fdump-tree-optimized" } */ /* Check that the initial values are honored when necessary. */ void link_error (void); /* The call to link_error cannot be eliminated in this case. */ void test1 (int param1, int param2, int x) { if (param1) x = 3; if (param2) if (x != 3) link_error (); } /* The call to link_error cannot be eliminated in this case. */ int global; void test2 (int param1, int param2) { if (param1) global = 3; if (param2) if (global != 3) link_error (); } /* In this case, we can eliminate the call, as unless "local" is set to 3, its value is undefined. */ void test3 (int param1, int param2) { int local; if (param1) local = 3; if (param2) if (local != 3) link_error (); } /* { dg-final { scan-tree-dump-times "link_error" 2 "optimized" } } */