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| author | Richard Henderson <rth@redhat.com> | 2005-06-28 15:24:12 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2005-06-28 15:24:12 -0700 |
| commit | 505ac5077028e17ceec8612d518ff1dad09f4140 (patch) | |
| tree | 43b980a2bb90a31b44a746dd9b5a796c342ecdc7 /gcc/rtlanal.c | |
| parent | 98843c9206bc57b09354e9a145df5af9b297afdf (diff) | |
| download | gcc-505ac5077028e17ceec8612d518ff1dad09f4140.tar.gz | |
rtlanal.c (nonzero_bits1): Use the mode of the value for determining integral-ness for comparisons.
* rtlanal.c (nonzero_bits1): Use the mode of the value for
determining integral-ness for comparisons.
From-SVN: r101395
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index 25aefd5d5dc..6a3be0e7918 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -3657,12 +3657,14 @@ nonzero_bits1 (rtx x, enum machine_mode mode, rtx known_x, case GE: case GEU: case UNGE: case LE: case LEU: case UNLE: case UNORDERED: case ORDERED: - /* If this produces an integer result, we know which bits are set. Code here used to clear bits outside the mode of X, but that is now done above. */ - - if (GET_MODE_CLASS (mode) == MODE_INT + /* Mind that MODE is the mode the caller wants to look at this + operation in, and not the actual operation mode. We can wind + up with (subreg:DI (gt:V4HI x y)), and we don't have anything + that describes the results of a vector compare. */ + if (GET_MODE_CLASS (GET_MODE (x)) == MODE_INT && mode_width <= HOST_BITS_PER_WIDE_INT) nonzero = STORE_FLAG_VALUE; break; |