From 32accfd73947fac5f0ea55c55e222d6ccd3039e0 Mon Sep 17 00:00:00 2001 From: jiwang Date: Fri, 12 Sep 2014 09:39:42 +0000 Subject: [PATCH] [AArch64] Add cost handling of CALLER_SAVE_REGS and POINTER_REGS 2014-09-12 Wilco Dijkstra * gcc/config/aarch64/aarch64.c (aarch64_register_move_cost): Add cost handling of CALLER_SAVE_REGS and POINTER_REGS. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215206 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 5 +++++ gcc/config/aarch64/aarch64.c | 7 +++++++ 2 files changed, 12 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4d43c393d30..37202e8c87c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2014-09-12 Wilco Dijkstra + * config/aarch64/aarch64.c (aarch64_register_move_cost): Add cost + handling of CALLER_SAVE_REGS and POINTER_REGS. + +2014-09-12 Wilco Dijkstra + * gcc/ree.c (combine_reaching_defs): Ensure inserted copy don't change the number of hard registers. diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 6bb10db8a94..6f21fd9239b 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -5932,6 +5932,13 @@ aarch64_register_move_cost (enum machine_mode mode, const struct cpu_regmove_cost *regmove_cost = aarch64_tune_params->regmove_cost; + /* Caller save and pointer regs are equivalent to GENERAL_REGS. */ + if (to == CALLER_SAVE_REGS || to == POINTER_REGS) + to = GENERAL_REGS; + + if (from == CALLER_SAVE_REGS || from == POINTER_REGS) + from = GENERAL_REGS; + /* Moving between GPR and stack cost is the same as GP2GP. */ if ((from == GENERAL_REGS && to == STACK_REG) || (to == GENERAL_REGS && from == STACK_REG)) -- 2.11.4.GIT