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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [no-strict-overflow-6.c] - Rev 298
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/* { dg-do compile } */ /* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */ /* Source: Ian Lance Taylor. */ /* VRP test. We can not simplify the conditional when not using strict overflow semantics. We don't test this with -fstrict-overflow because it turns into an infinite loop. That is OK but it would also be OK to not do that. */ int foo () { int i, bits; for (i = 1, bits = 1; i > 0; i += i) ++bits; return bits; } /* { dg-final { scan-tree-dump "return bits" "optimized" } } */ /* { dg-final { cleanup-tree-dump "optimized" } } */