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gcc.dg/vect/vect-52 failure
- From: Alan Modra <amodra at bigpond dot net dot au>
- To: gcc-patches at gcc dot gnu dot org, Dorit Nuzman <dorit at il dot ibm dot com>
- Date: Thu, 25 Aug 2005 17:44:57 +0930
- Subject: gcc.dg/vect/vect-52 failure
Hi,
vect-52 has been failing on powerpc-linux. On investigating, it
appears the test is invalid since b[] and c[] array bounds are
exceeded. The access to c[256] happened to read a value that was a
nan, and nans don't compare equal to anything, including themselves.
OK to apply?
* gcc.dg/vect/vect-52.c: Increase b[] and c[] size by one.
Index: testsuite/gcc.dg/vect/vect-52.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/testsuite/gcc.dg/vect/vect-52.c,v
retrieving revision 1.10
diff -u -p -r1.10 vect-52.c
--- testsuite/gcc.dg/vect/vect-52.c 16 Aug 2005 15:02:38 -0000 1.10
+++ testsuite/gcc.dg/vect/vect-52.c 25 Aug 2005 07:29:41 -0000
@@ -41,8 +41,8 @@ int main (void)
{
int i;
float a[N] __attribute__ ((__aligned__(16)));
- float b[N] __attribute__ ((__aligned__(16))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60};
- float c[N] __attribute__ ((__aligned__(16))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
+ float b[N+1] __attribute__ ((__aligned__(16))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60};
+ float c[N+1] __attribute__ ((__aligned__(16))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
check_vect ();
--
Alan Modra
IBM OzLabs - Linux Technology Centre