From 83a8cbdab0a2dd9c7dc38a88780907aea27b81a5 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Mon, 20 Jun 2011 17:03:16 +0000 Subject: [PATCH] Don't check zero/sign extended hard registers. 2011-06-20 H.J. Lu PR middle-end/47725 * combine.c (cant_combine_insn_p): Don't check zero/sign extended hard registers. From-SVN: r175222 --- gcc/ChangeLog | 6 ++++++ gcc/combine.c | 6 ------ 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 455fdcffb6b..30b07fabb4d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-06-20 H.J. Lu + + PR middle-end/47725 + * combine.c (cant_combine_insn_p): Don't check zero/sign + extended hard registers. + 2011-06-21 Alan Modra * config/rs6000/rs6000.c (rs6000_cannot_force_const_mem): Match diff --git a/gcc/combine.c b/gcc/combine.c index 004ae27687d..56fb44eaf42 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -2168,12 +2168,6 @@ cant_combine_insn_p (rtx insn) return 0; src = SET_SRC (set); dest = SET_DEST (set); - if (GET_CODE (src) == ZERO_EXTEND - || GET_CODE (src) == SIGN_EXTEND) - src = XEXP (src, 0); - if (GET_CODE (dest) == ZERO_EXTEND - || GET_CODE (dest) == SIGN_EXTEND) - dest = XEXP (dest, 0); if (GET_CODE (src) == SUBREG) src = SUBREG_REG (src); if (GET_CODE (dest) == SUBREG)