From 5f5c8cb47e10fbb1ef96c65891bb91bb25930faf Mon Sep 17 00:00:00 2001 From: Richard Earnshaw Date: Tue, 21 Feb 2012 23:46:05 +0000 Subject: [PATCH] re PR target/52294 ([ARM Thumb] generated asm code produces "branch out of range" error in gas with -Os -mcpu=cortex-a9) PR target/52294 * thumb2.md (thumb2_shiftsi3_short): Split register and immediate shifts. For register shifts tie operands 0 and 1. (peephole2 for above): Check that register-controlled shifts have suitably tied operands. From-SVN: r184452 --- gcc/ChangeLog | 8 ++++++++ gcc/config/arm/thumb2.md | 7 ++++--- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cb428cef00d3..1e4f1591bf2f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2012-02-21 Richard Earnshaw + + PR target/52294 + * thumb2.md (thumb2_shiftsi3_short): Split register and + immediate shifts. For register shifts tie operands 0 and 1. + (peephole2 for above): Check that register-controlled shifts + have suitably tied operands. + 2012-02-21 Andreas Krebbel * config/s390/s390.md ("fixuns_truncsi2"): Replace diff --git a/gcc/config/arm/thumb2.md b/gcc/config/arm/thumb2.md index 6416d187f0b1..1b2fb2d44a14 100644 --- a/gcc/config/arm/thumb2.md +++ b/gcc/config/arm/thumb2.md @@ -684,6 +684,7 @@ (match_operand:SI 2 "low_reg_or_int_operand" "")]))] "TARGET_THUMB2 && peep2_regno_dead_p(0, CC_REGNUM) + && (CONST_INT_P (operands[2]) || operands[1] == operands[0]) && ((GET_CODE(operands[3]) != ROTATE && GET_CODE(operands[3]) != ROTATERT) || REG_P(operands[2]))" [(parallel @@ -696,10 +697,10 @@ ) (define_insn "*thumb2_shiftsi3_short" - [(set (match_operand:SI 0 "low_register_operand" "=l") + [(set (match_operand:SI 0 "low_register_operand" "=l,l") (match_operator:SI 3 "shift_operator" - [(match_operand:SI 1 "low_register_operand" "l") - (match_operand:SI 2 "low_reg_or_int_operand" "lM")])) + [(match_operand:SI 1 "low_register_operand" "0,l") + (match_operand:SI 2 "low_reg_or_int_operand" "l,M")])) (clobber (reg:CC CC_REGNUM))] "TARGET_THUMB2 && reload_completed && ((GET_CODE(operands[3]) != ROTATE && GET_CODE(operands[3]) != ROTATERT) -- 2.47.2