diff options
| author | J"orn Rennecke <amylaar@cygnus.co.uk> | 1998-08-26 08:19:18 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 1998-08-26 09:19:18 +0100 |
| commit | ef75736785c9ea83d2f9b01a03aeef0b45501e72 (patch) | |
| tree | 7441e2a044c8645046e22f50267686fddb04fc87 /gcc | |
| parent | 1379191a201e54a0592dd41f9e188b294f5a42a2 (diff) | |
| download | gcc-ef75736785c9ea83d2f9b01a03aeef0b45501e72.zip gcc-ef75736785c9ea83d2f9b01a03aeef0b45501e72.tar.gz gcc-ef75736785c9ea83d2f9b01a03aeef0b45501e72.tar.bz2 | |
Document overflow bug in check_dbra_loop:
* execute/loop-4b.c: New test.
From-SVN: r21999
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/loop-4b.c | 21 |
2 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/ChangeLog b/gcc/testsuite/gcc.c-torture/ChangeLog index 45598b8..b545b60 100644 --- a/gcc/testsuite/gcc.c-torture/ChangeLog +++ b/gcc/testsuite/gcc.c-torture/ChangeLog @@ -1,3 +1,7 @@ +Wed Aug 26 16:10:00 1997 J"orn Rennecke <amylaar@cygnus.co.uk> + + * execute/loop-4b.c: New test. + Mon Aug 24 14:20:32 1998 Nick Clifton <nickc@cygnus.com> * execute/bcp-1.c (main): Fix optimize test loop to count number diff --git a/gcc/testsuite/gcc.c-torture/execute/loop-4b.c b/gcc/testsuite/gcc.c-torture/execute/loop-4b.c new file mode 100644 index 0000000..eaf7f30 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/loop-4b.c @@ -0,0 +1,21 @@ +int +f() +{ + int j = 1; + long i; + i = 0x60000000L; + do + { + j <<= 1; + i += 0x10000000L; + } while (i < -0x60000000L); + return j; +} + +int +main () +{ + if (f () != 2) + abort (); + exit (0); +} |