From 505ac5077028e17ceec8612d518ff1dad09f4140 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Tue, 28 Jun 2005 15:24:12 -0700 Subject: [PATCH] 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 --- gcc/ChangeLog | 5 +++++ gcc/rtlanal.c | 8 +++++--- 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 34b0960fddf..63327225857 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2005-06-28 Richard Henderson + + * rtlanal.c (nonzero_bits1): Use the mode of the value for + determining integral-ness for comparisons. + 2005-06-28 Andrew Pinski * config/rs6000/rs6000.md (setmemsi): Fix operand 2. 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; -- 2.30.2