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| author | Roger Sayle <roger@eyesopen.com> | 2006-07-25 23:21:56 +0000 |
|---|---|---|
| committer | Roger Sayle <sayle@gcc.gnu.org> | 2006-07-25 23:21:56 +0000 |
| commit | 738764ef1e4321a6e385b30cf52f8ae1d9eb43b1 (patch) | |
| tree | fe2cca2c97ebff50cdce92939507476d43dba1e2 /gcc/testsuite/gcc.dg/fold-convround-1.c | |
| parent | cdc30c457970d9876af28cdfe7e3a90d590e55ae (diff) | |
| download | gcc-738764ef1e4321a6e385b30cf52f8ae1d9eb43b1.tar.gz | |
re PR middle-end/28473 (with -O, casting result of round(x) to uint64_t produces wrong values for x > INT_MAX)
PR middle-end/28473
* convert.c (convert_to_integer): When transforming (T)foo(x) into
bar(x) check that bar's result type can represent all the values of T.
* gcc.dg/fold-convround-1.c: New test case.
From-SVN: r115742
Diffstat (limited to 'gcc/testsuite/gcc.dg/fold-convround-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/fold-convround-1.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/fold-convround-1.c b/gcc/testsuite/gcc.dg/fold-convround-1.c new file mode 100644 index 00000000000..86612aa81b3 --- /dev/null +++ b/gcc/testsuite/gcc.dg/fold-convround-1.c @@ -0,0 +1,30 @@ +/* PR middle-end/28473. */ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-original" } */ + +extern double round(double); +extern double floor(double); +extern double ceil(double); + +unsigned long long test1(double x) +{ + return (unsigned long long) round(x); +} + +unsigned long long test2(double x) +{ + return (unsigned long long) floor(x); +} +unsigned long long test3(double x) +{ + return (unsigned long long) ceil(x); +} + +/* { dg-final { scan-tree-dump-times "__builtin_lround" 0 "original" } } */ +/* { dg-final { scan-tree-dump-times "__builtin_llround" 0 "original" } } */ +/* { dg-final { scan-tree-dump-times "__builtin_lfloor" 0 "original" } } */ +/* { dg-final { scan-tree-dump-times "__builtin_llfloor" 0 "original" } } */ +/* { dg-final { scan-tree-dump-times "__builtin_lceil" 0 "original" } } */ +/* { dg-final { scan-tree-dump-times "__builtin_llceil" 0 "original" } } */ +/* { dg-final { cleanup-tree-dump "original" } } */ + |