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re PR rtl-optimization/16180 (gcc crashes when optimization is turned on)

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PR c/16180
	* jump.c (duplicate_loop_exit_test): If the location reached by
	the unconditional jump at the top of the loop is outside the loop,
	then do not treat it as the exit test.

	PR c/16180
	* gcc.dg/loop-5.c: New test.

From-SVN: r86459
This commit is contained in:
Mark Mitchell 2004-08-24 01:45:23 +00:00 committed by Mark Mitchell
parent 2e6ae27f33
commit a9b5a054c9
2 changed files with 21 additions and 0 deletions
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5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2004-08-23 Mark Mitchell <mark@codesourcery.com>
PR c/16180
* gcc.dg/loop-5.c: New test.
2004-08-23 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
* gcc.c-torture/execute/20040823-1.c: New test.

16
gcc/testsuite/gcc.dg/loop-5.c Normal file
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/* PR c/16180 */
/* { dg-options "-O2" } */
extern int b;
int foo (int a)
{
if (a)
{
b = 0;
for(;;)
goto L;
}
L:
for(;;)
return 0;
}