diff options
| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-11-12 13:24:06 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-11-12 13:24:06 +0000 |
| commit | d997554fab3294d8fb2646702dca35f768d30591 (patch) | |
| tree | 1748ca812d38b49f003e3b8885790ebee8e08000 /gcc/testsuite | |
| parent | d2ad9321b602192cc1a143bab0cf984986a6ca05 (diff) | |
| download | gcc-d997554fab3294d8fb2646702dca35f768d30591.tar.gz | |
2007-11-12 Richard Guenther <rguenther@suse.de>
PR middle-end/34027
* fold-const.c (fold_binary): Fold n - (n / m) * m to n % m.
(fold_binary): Fold unsinged FLOOR_DIV_EXPR to TRUNC_DIV_EXPR.
* gcc.dg/pr34027-1.c: New testcase.
* gcc.dg/pr34027-2.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@130097 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr34027-1.c | 12 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr34027-2.c | 10 |
3 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 476b82b63bf..e22485905ac 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2007-11-12 Richard Guenther <rguenther@suse.de> + + PR middle-end/34027 + * gcc.dg/pr34027-1.c: New testcase. + * gcc.dg/pr34027-2.c: Likewise. + 2007-11-12 Ira Rosen <irar@il.ibm.com> PR tree-optimization/33953 diff --git a/gcc/testsuite/gcc.dg/pr34027-1.c b/gcc/testsuite/gcc.dg/pr34027-1.c new file mode 100644 index 00000000000..532e4976dc3 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr34027-1.c @@ -0,0 +1,12 @@ +/* { dg-do compile } */ +/* { dg-options "-Os -fdump-tree-optimized" } */ + +unsigned long foobar(unsigned long ns) +{ + while(ns >= 10000L) + ns -= 10000L; + return ns; +} + +/* { dg-final { scan-tree-dump "ns % 10000" "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ diff --git a/gcc/testsuite/gcc.dg/pr34027-2.c b/gcc/testsuite/gcc.dg/pr34027-2.c new file mode 100644 index 00000000000..70c4561d0f1 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr34027-2.c @@ -0,0 +1,10 @@ +/* { dg-do compile } */ +/* { dg-options "-fdump-tree-gimple" } */ + +long foo(long n, long m) +{ + return n - (n / m) * m; +} + +/* { dg-final { scan-tree-dump "n % m" "gimple" } } */ +/* { dg-final { cleanup-tree-dump "gimple" } } */ |