From 9bc8692a422f6fee91af1c1097545ba293b9b47b Mon Sep 17 00:00:00 2001 From: Joern Rennecke Date: Wed, 28 Nov 2012 13:21:59 +0000 Subject: [PATCH] epiphany.md (mov, [...]): Check for misaligned memory operands. * config/epiphany/epiphany.md (mov, *mov_insn): Check for misaligned memory operands. * config/epiphany/predicates.md (misaligned_operand): New predicate. From-SVN: r193890 --- gcc/ChangeLog | 4 ++++ gcc/config/epiphany/epiphany.md | 5 ++++- gcc/config/epiphany/predicates.md | 5 +++++ 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 538eb020ad2..1d4a0c93ea7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -4,6 +4,10 @@ * config/epiphany/epiphany-protos.h (epiphany_regno_rename_ok): Declare. * config/epiphany/epiphany.c (epiphany_regno_rename_ok): New function. + * config/epiphany/epiphany.md (mov, *mov_insn): Check + for misaligned memory operands. + * config/epiphany/predicates.md (misaligned_operand): New predicate. + 2012-11-28 Richard Biener PR tree-optimization/54547 diff --git a/gcc/config/epiphany/epiphany.md b/gcc/config/epiphany/epiphany.md index 22863e8150e..f65087025e6 100644 --- a/gcc/config/epiphany/epiphany.md +++ b/gcc/config/epiphany/epiphany.md @@ -325,6 +325,7 @@ if (epiphany_vect_align != 4 /* == 8 */ && !reload_in_progress && (GET_CODE (operands[0]) == MEM || GET_CODE (operands[1]) == MEM) + && !misaligned_operand (operands[1], mode) && (GET_CODE (operands[0]) != SUBREG || (GET_MODE_SIZE (GET_MODE (SUBREG_REG (operands[0]))) != GET_MODE_SIZE (mode) @@ -355,7 +356,9 @@ ldrd %0,%X1 strd %1,%X0" "reload_completed - && ((!MEM_P (operands[0]) && !MEM_P (operands[1])) + && (((!MEM_P (operands[0]) || misaligned_operand (operands[0], mode)) + && (!MEM_P (operands[1]) + || misaligned_operand (operands[1], mode))) || epiphany_vect_align == 4)" [(set (match_dup 2) (match_dup 3)) (set (match_dup 4) (match_dup 5))] diff --git a/gcc/config/epiphany/predicates.md b/gcc/config/epiphany/predicates.md index 6e96af9fed4..4cbff589b8e 100644 --- a/gcc/config/epiphany/predicates.md +++ b/gcc/config/epiphany/predicates.md @@ -350,3 +350,8 @@ (define_predicate "nonsymbolic_immediate_operand" (ior (match_test "immediate_operand (op, mode)") (match_code "const_vector"))) /* Is this specific enough? */ + +;; Return true if OP is misaligned memory operand +(define_predicate "misaligned_operand" + (and (match_code "mem") + (match_test "MEM_ALIGN (op) < GET_MODE_ALIGNMENT (mode)"))) -- 2.30.2