From d9b091472f9afb216fe9f0c763053baf89390a6c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Magnus=20L=C3=A5ng?= Date: Fri, 10 Jun 2016 19:29:22 +0200 Subject: hipe_arm: Minimise CFG<->linear conversions Now, there will only ever be a single Linear->CFG conversion, just after lowering from RTL, and only ever a single CFG->Linear conversion, just before the finalise pass. Both of these now happen in hipe_arm_main. --- lib/hipe/arm/hipe_arm_ra_postconditions.erl | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) (limited to 'lib/hipe/arm/hipe_arm_ra_postconditions.erl') diff --git a/lib/hipe/arm/hipe_arm_ra_postconditions.erl b/lib/hipe/arm/hipe_arm_ra_postconditions.erl index 40978e65f6..04365f29b0 100644 --- a/lib/hipe/arm/hipe_arm_ra_postconditions.erl +++ b/lib/hipe/arm/hipe_arm_ra_postconditions.erl @@ -25,17 +25,13 @@ -include("hipe_arm.hrl"). -check_and_rewrite(Defun, Coloring, Allocator) -> +check_and_rewrite(CFG, Coloring, Allocator) -> TempMap = hipe_temp_map:cols2tuple(Coloring, hipe_arm_specific), - check_and_rewrite2(Defun, TempMap, Allocator). + check_and_rewrite2(CFG, TempMap, Allocator). -check_and_rewrite2(Defun, TempMap, Allocator) -> +check_and_rewrite2(CFG, TempMap, Allocator) -> Strategy = strategy(Allocator), - #defun{code=Code0} = Defun, - {Code1,DidSpill} = do_insns(Code0, TempMap, Strategy, [], false), - VarRange = {0, hipe_gensym:get_var(arm)}, - {Defun#defun{code=Code1, var_range=VarRange}, - DidSpill}. + do_bbs(hipe_arm_cfg:labels(CFG), TempMap, Strategy, CFG, false). strategy(Allocator) -> case Allocator of @@ -44,6 +40,13 @@ strategy(Allocator) -> 'naive' -> 'fixed' end. +do_bbs([], _, _, CFG, DidSpill) -> {CFG, DidSpill}; +do_bbs([Lbl|Lbls], TempMap, Strategy, CFG0, DidSpill0) -> + Code0 = hipe_bb:code(BB = hipe_arm_cfg:bb(CFG0, Lbl)), + {Code, DidSpill} = do_insns(Code0, TempMap, Strategy, [], DidSpill0), + CFG = hipe_arm_cfg:bb_add(CFG0, Lbl, hipe_bb:code_update(BB, Code)), + do_bbs(Lbls, TempMap, Strategy, CFG, DidSpill). + do_insns([I|Insns], TempMap, Strategy, Accum, DidSpill0) -> {NewIs, DidSpill1} = do_insn(I, TempMap, Strategy), do_insns(Insns, TempMap, Strategy, lists:reverse(NewIs, Accum), DidSpill0 or DidSpill1); -- cgit v1.2.3