diff options
Diffstat (limited to 'gcc/simplify-rtx.c')
| -rw-r--r-- | gcc/simplify-rtx.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 3b85767..8568529 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -929,9 +929,13 @@ simplify_binary_operation (enum rtx_code code, enum machine_mode mode, f0 = real_value_truncate (mode, f0); f1 = real_value_truncate (mode, f1); + if (HONOR_SNANS (mode) + && (REAL_VALUE_ISNAN (f0) || REAL_VALUE_ISNAN (f1))) + return 0; + if (code == DIV - && !MODE_HAS_INFINITIES (mode) - && REAL_VALUES_EQUAL (f1, dconst0)) + && REAL_VALUES_EQUAL (f1, dconst0) + && (flag_trapping_math || ! MODE_HAS_INFINITIES (mode))) return 0; REAL_ARITHMETIC (value, rtx_to_tree_code (code), f0, f1); |