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| author | Richard Biener <rguenther@suse.de> | 2013-04-03 10:25:23 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2013-04-03 10:25:23 +0000 |
| commit | 6b94a92dc974cea523a2a4025f66882696259b97 (patch) | |
| tree | 88f5115e03eba7f5ad563c5a6a814945b77eef38 | |
| parent | ec9202a88724837804855031a0360232aebb981b (diff) | |
| download | gcc-6b94a92dc974cea523a2a4025f66882696259b97.zip gcc-6b94a92dc974cea523a2a4025f66882696259b97.tar.gz gcc-6b94a92dc974cea523a2a4025f66882696259b97.tar.bz2 | |
re PR tree-optimization/56407 (Optimizations (-O2 -O3) make comparison of arrays of ints to fail)
2013-04-03 Richard Biener <rguenther@suse.de>
PR tree-optimization/56407
* gcc.dg/torture/pr56407.c: New testcase.
From-SVN: r197399
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr56407.c | 48 |
2 files changed, 53 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index b147235..5b2ae95 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2013-04-03 Richard Biener <rguenther@suse.de> + + PR tree-optimization/56407 + * gcc.dg/torture/pr56407.c: New testcase. + 2013-04-03 Marc Glisse <marc.glisse@inria.fr> PR tree-optimization/56790 diff --git a/gcc/testsuite/gcc.dg/torture/pr56407.c b/gcc/testsuite/gcc.dg/torture/pr56407.c new file mode 100644 index 0000000..f26fd23 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr56407.c @@ -0,0 +1,48 @@ +/* { dg-do run } */ + +extern void abort(void); +extern int rand(void); + +static void copy(int *r,int *a,int na) +{ + int i; + for( i = 0 ; i < na ; i++ ) + r[i] = a[i]; +} + +static void foo(int *a,int na) +{ + int i; + for( i = 0 ; i < na ; i++ ) + a[i] = rand(); +} + +static int cmp(int *a,int *b,int n) +{ + int i; + for( i = 0 ; i < n ; i++ ) + if ( a[i] != b[i] ) + return -1; + return 0; +} + +void __attribute__((noinline,noclone)) +test(int sz,int comm) +{ + int j,n; + int v[64],w[64]; + for( j = 1 ; j <= sz ; j++ ) + { + n = (2 * j - 1) * (2 * j - 1); + foo(w,n); + copy(v,w,n); + if ( comm ) + if ( cmp(v,w,n) ) abort (); + } +} + +int main() +{ + test(2,1); + return 0; +} |