diff options
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/gcc/cse.c b/gcc/cse.c index 7a05dad0307..1fe4752d8a0 100644 --- a/gcc/cse.c +++ b/gcc/cse.c @@ -3981,19 +3981,18 @@ fold_rtx (x, insn) & HASH_MASK), mode_arg0)) && p0->first_same_value == p1->first_same_value)) { - /* Sadly two equal NaNs are not equivalent. */ - if (TARGET_FLOAT_FORMAT != IEEE_FLOAT_FORMAT - || ! FLOAT_MODE_P (mode_arg0) - || flag_unsafe_math_optimizations) - return ((code == EQ || code == LE || code == GE - || code == LEU || code == GEU || code == UNEQ - || code == UNLE || code == UNGE || code == ORDERED) - ? true_rtx : false_rtx); - /* Take care for the FP compares we can resolve. */ - if (code == UNEQ || code == UNLE || code == UNGE) - return true_rtx; - if (code == LTGT || code == LT || code == GT) - return false_rtx; + /* Sadly two equal NaNs are not equivalent. */ + if (!HONOR_NANS (mode_arg0)) + return ((code == EQ || code == LE || code == GE + || code == LEU || code == GEU || code == UNEQ + || code == UNLE || code == UNGE + || code == ORDERED) + ? true_rtx : false_rtx); + /* Take care for the FP compares we can resolve. */ + if (code == UNEQ || code == UNLE || code == UNGE) + return true_rtx; + if (code == LTGT || code == LT || code == GT) + return false_rtx; } /* If FOLDED_ARG0 is a register, see if the comparison we are |