From 7a56db5f46dd6f2168092f7759c572017011dfc5 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 17 Jun 2013 04:45:54 +0000 Subject: [PATCH] sim: bfin: drop RET[ENI] setup Since these insns run in usermode, there should be no need to setup RET[ENI] to safe values. They won't be dereferenced, and any insn that returns via them are valid only in supervisor mode. Since this is in the main exception code path, saving any insn at all is good as it gets multiplied quickly (as in O(n^2) times). Signed-off-by: Mike Frysinger --- sim/testsuite/sim/bfin/ChangeLog | 4 ++++ sim/testsuite/sim/bfin/se_allopcodes.h | 3 --- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/sim/testsuite/sim/bfin/ChangeLog b/sim/testsuite/sim/bfin/ChangeLog index 03a9844..753affc 100644 --- a/sim/testsuite/sim/bfin/ChangeLog +++ b/sim/testsuite/sim/bfin/ChangeLog @@ -1,3 +1,7 @@ +2013-06-17 Mike Frysinger + + * se_allopcodes.h: Do not clear RETN/RETE/RETI. + 2012-04-09 Robin Getz * random_0017.S, random_0018.S, random_0025.S: New ASTAT shift tests. diff --git a/sim/testsuite/sim/bfin/se_allopcodes.h b/sim/testsuite/sim/bfin/se_allopcodes.h index 7ff8d2b..b49862a 100644 --- a/sim/testsuite/sim/bfin/se_allopcodes.h +++ b/sim/testsuite/sim/bfin/se_allopcodes.h @@ -158,9 +158,6 @@ _next_instruction: /* set up pointers to valid data (32Meg), to reduce address violations */ reset_dags RETS = r0; - RETN = r0; - RETE = r0; - RETI = r0; RTX; -- 2.7.4