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[testsuite] new test case to test unreachable code option with optimization level 2
- From: "Nitin Yewale" <NitinY at KPITCummins dot com>
- To: <gcc-patches at gcc dot gnu dot org>
- Date: Wed, 30 Jun 2004 15:35:34 +0530
- Subject: [testsuite] new test case to test unreachable code option with optimization level 2
Hi,
When following test case was executed with unreachable code option and
optimization level 2, it unnecessary removes the code.
Below test case FAILS with gcc-3.4 but with gcc-3.5-20040620 snapshot
it doesn't give any warning. I am unable to locate the patch which removes
the warning.
Please find attached test case for the same.
==========================================================================
testsuite/Changelog
2004-06-30 Nitin Yewale <nitiny@kpitcummins.com>
* gcc.dg/Wunreachable-8.c : New test
==========================================================================
--- /dev/null 2002-08-31 05:01:37.000000000 +0530
+++ gcc.dg/Wunreachable-8.c 2004-06-30 11:43:39.000000000 +0530
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -Wunreachable-code" } */
+float Factorial(float X)
+{
+ float val = 1.0;
+ int k,j;
+ for (k=1; k < 5; k++)
+ {
+ val += 1.0;
+ }
+ return (val); /* { dg-bogus "will never be executed" } */
+}
+int main (void)
+{
+ float result;
+ result=Factorial(2.1);
+ return (0);
+}
==========================================================================
Regards,
Nitin Yewale,
KPIT Cummins InfoSystems Ltd.
Pune, India
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