diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/torture/builtin-pow-mpfr-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/builtin-pow-mpfr-1.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/torture/builtin-pow-mpfr-1.c b/gcc/testsuite/gcc.dg/torture/builtin-pow-mpfr-1.c new file mode 100644 index 000000000..6206b9ee3 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/builtin-pow-mpfr-1.c @@ -0,0 +1,19 @@ +/* Version 2.2.0 of MPFR had bugs in pow underflow/overflow. This + test checks to see if that buggy version was installed. The + problem is NOT fixed with the version 2.2.0 "cumulative patch". + However it is fixed in version 2.2.1 and presumably later MPFR + versions. + + Origin: Kaveh R. Ghazi 12/17/2006. */ + +/* { dg-do compile } */ +/* { dg-options "-fdump-tree-original" } */ + +extern double testit() +{ + /* This underflows and therefore gcc should not fold it. */ + return __builtin_pow (0.11, 1.0e38); +} + +/* { dg-final { scan-tree-dump "pow" "original" } } */ +/* { dg-final { cleanup-tree-dump "original" } } */ |