From: krebbel Date: Thu, 20 Dec 2012 15:20:06 +0000 (+0000) Subject: 2012-12-20 Andreas Krebbel X-Git-Tag: upstream/4.9.2~8470 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b42c8b6f200b3923d2dc0a00301a9fdaf50a3328;p=platform%2Fupstream%2Flinaro-gcc.git 2012-12-20 Andreas Krebbel PR target/55754 * config/arm/arm.c (arm_canonicalize_comparison): Remove op0_preserve_value check for zero_extend to and transformation. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@194636 138bc75d-0d04-0410-961f-82ee72b054a4 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ca9844f..5c51847 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-12-20 Andreas Krebbel + + PR target/55754 + * config/arm/arm.c (arm_canonicalize_comparison): Remove + op0_preserve_value check for zero_extend to and transformation. + 2012-12-20 Teresa Johnson Jakub Jelinek diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index be4428b..4484bc9 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -3619,8 +3619,7 @@ arm_canonicalize_comparison (int *code, rtx *op0, rtx *op1, /* If *op0 is (zero_extend:SI (subreg:QI (reg:SI) 0)) and comparing with const0_rtx, change it to (and:SI (reg:SI) (const_int 255)), to facilitate possible combining with a cmp into 'ands'. */ - if (!op0_preserve_value - && mode == SImode + if (mode == SImode && GET_CODE (*op0) == ZERO_EXTEND && GET_CODE (XEXP (*op0, 0)) == SUBREG && GET_MODE (XEXP (*op0, 0)) == QImode