diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/convert.cc | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/builtin-fp-int-inexact-trunc.c | 12 |
2 files changed, 14 insertions, 1 deletions
diff --git a/gcc/convert.cc b/gcc/convert.cc index 46c8bcb..f214b75 100644 --- a/gcc/convert.cc +++ b/gcc/convert.cc @@ -591,7 +591,8 @@ convert_to_integer_1 (tree type, tree expr, bool dofold) CASE_FLT_FN (BUILT_IN_TRUNC): CASE_FLT_FN_FLOATN_NX (BUILT_IN_TRUNC): if (call_expr_nargs (s_expr) != 1 - || !SCALAR_FLOAT_TYPE_P (TREE_TYPE (CALL_EXPR_ARG (s_expr, 0)))) + || !SCALAR_FLOAT_TYPE_P (TREE_TYPE (CALL_EXPR_ARG (s_expr, 0))) + || (!flag_fp_int_builtin_inexact && flag_trapping_math)) break; return convert_to_integer_1 (type, CALL_EXPR_ARG (s_expr, 0), dofold); diff --git a/gcc/testsuite/gcc.dg/torture/builtin-fp-int-inexact-trunc.c b/gcc/testsuite/gcc.dg/torture/builtin-fp-int-inexact-trunc.c new file mode 100644 index 0000000..0973118 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/builtin-fp-int-inexact-trunc.c @@ -0,0 +1,12 @@ +/* Test -fno-fp-int-builtin-inexact. */ +/* { dg-do compile } */ +/* { dg-options "-fno-fp-int-builtin-inexact -fdump-tree-original" } */ + +long +x (double y) +{ + return __builtin_trunc (y); +} + +/* Optimization should not discard the __builtin_trunc call. */ +/* { dg-final { scan-tree-dump "__builtin_trunc" "original" } } */ |