From 3f67a73d5caeefc406ab35e5760dfda60d060031 Mon Sep 17 00:00:00 2001 From: Eric Botcazou Date: Sun, 29 Sep 2013 17:54:45 +0000 Subject: [PATCH] * config/sparc/sync.md: Add peephole for consecutive memory barriers. From-SVN: r203014 --- gcc/ChangeLog | 4 ++++ gcc/config/sparc/sync.md | 12 ++++++++++++ 2 files changed, 16 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b9eef9defa4..e208ae7dee3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2013-09-29 Eric Botcazou + + * config/sparc/sync.md: Add peephole for consecutive memory barriers. + 2013-09-28 Jan Hubicka * config/i386/x86-tune.def: Add documentation for each of the options; diff --git a/gcc/config/sparc/sync.md b/gcc/config/sparc/sync.md index 130f5219194..7b431bc6577 100644 --- a/gcc/config/sparc/sync.md +++ b/gcc/config/sparc/sync.md @@ -93,6 +93,18 @@ "membar\t%1" [(set_attr "type" "multi")]) +(define_peephole2 + [(set (match_operand:BLK 0 "" "") + (unspec:BLK [(match_dup 0) (match_operand:SI 1 "const_int_operand")] + UNSPEC_MEMBAR)) + (set (match_operand:BLK 2 "" "") + (unspec:BLK [(match_dup 2) (match_operand:SI 3 "const_int_operand")] + UNSPEC_MEMBAR))] + "" + [(set (match_operand:BLK 0 "" "") + (unspec:BLK [(match_dup 0) (match_dup 1)] UNSPEC_MEMBAR))] +{ operands[1] = GEN_INT (UINTVAL (operands[1]) | UINTVAL (operands[3])); }) + (define_expand "atomic_load" [(match_operand:I 0 "register_operand" "") (match_operand:I 1 "memory_operand" "") -- 2.30.2