From patchwork Tue Sep 8 08:14:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongtao Liu X-Patchwork-Id: 1359574 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=sourceware.org; envelope-from=gcc-patches-bounces@gcc.gnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=gcc.gnu.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.a=rsa-sha256 header.s=default header.b=yMpxGDU3; dkim-atps=neutral Received: from sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4BlybZ4pMJz9sRK for ; Tue, 8 Sep 2020 18:14:02 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 5B55C384B0C1; Tue, 8 Sep 2020 08:14:00 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 5B55C384B0C1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1599552840; bh=OANo7ruLMQfD1llGw6kvwTDOcTqVurYz2QPqIGtuRuk=; h=Date:Subject:To:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:Cc:From; b=yMpxGDU35rFORI5FLzd9WvmRz9Vhy3PDRSKnT4zGra2UCHnQOsJLtVK7LXuTwZXOw NltAg+Xc2c0VeP4uhdcOfUJpl5j6g/znRqkTx/UtFKViq+O/blLx1L2tXe4aU2aTWu 7+nnEt7ctCGYD9A54TpEnPXOgzUWM/CR2PZ09h7M= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mail-vs1-xe2c.google.com (mail-vs1-xe2c.google.com [IPv6:2607:f8b0:4864:20::e2c]) by sourceware.org (Postfix) with ESMTPS id 735A43857C55 for ; Tue, 8 Sep 2020 08:13:58 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 735A43857C55 Received: by mail-vs1-xe2c.google.com with SMTP id q13so8496739vsj.13 for ; Tue, 08 Sep 2020 01:13:58 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc; bh=OANo7ruLMQfD1llGw6kvwTDOcTqVurYz2QPqIGtuRuk=; b=srEl4dpD8SNrM/dEkA9CCf/OQxOlUd8CkYEKjJzoq0JWuzdy3wGtdTuFegUsvYoTy7 n2iIpUEEXabdGcCje+DRTDUwuQb/5jqFUlFp21D3xxeTCDaFb5IpWNUeESyzuTHwxkAm iRKqUEzSUExaF0OBUl0moFACavOUMgR2TFLer4ekyp8oO6tFmk3Nb5rV+jjRYiVFDpbu iuLuELPQ7GSmXNAPndpBvJTLS5kVUXvDuzrEPqgvCOFUOUPmkmZPPXI1CaRsWoAxaKSc lh7ep+p2fZUhPPuaNoFC6ZVg5pe6dhKXYAN8vm3WYHhYSHPhOHeib1yuTwRknVqjW2I0 HPoQ== X-Gm-Message-State: AOAM5325+Igsv63Yo2OxCZksPrT8WQyhDwLDVCNuXNKTOWgcCMfuEc8Q giSEYJhzUHGwIvHc+I1HbRxgbdetcK7p2BSoFTI= X-Google-Smtp-Source: ABdhPJz0nCR9lTobKfVFvwtQ3el5QVdXPUiOaryMzSiESvJUEQEvnPC/817eIqUtSiidNqUP31kzMIW11arW0HVNveQ= X-Received: by 2002:a67:7dd3:: with SMTP id y202mr12628838vsc.0.1599552838035; Tue, 08 Sep 2020 01:13:58 -0700 (PDT) MIME-Version: 1.0 Date: Tue, 8 Sep 2020 16:14:52 +0800 Message-ID: Subject: [PATCH] Implement __builtin_thread_pointer for x86 TLS To: Uros Bizjak , GCC Patches X-Spam-Status: No, score=-9.1 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Hongtao Liu via Gcc-patches From: Hongtao Liu Reply-To: Hongtao Liu Cc: Jakub Jelinek Errors-To: gcc-patches-bounces@gcc.gnu.org Sender: "Gcc-patches" Hi: We have "*load_tp_" in i386.md for load of thread pointer in i386.md, so this patch merely adds the expander for __builtin_thread_pointer. Bootstrap is ok, regression test is ok for i386/x86-64 backend. Ok for trunk? gcc/ChangeLog: PR target/96955 * config/i386/i386.md (get_thread_pointer): New expander. gcc/testsuite/ChangeLog: * gcc.target/i386/pr96955-builtin_thread_pointer.c: New test. From 4d80571d325859f75b6eb896a0def9695fb65c49 Mon Sep 17 00:00:00 2001 From: liuhongt Date: Tue, 8 Sep 2020 15:44:58 +0800 Subject: [PATCH] Implement __builtin_thread_pointer for x86 TLS. gcc/ChangeLog: PR target/96955 * config/i386/i386.md (get_thread_pointer): New expander. gcc/testsuite/ChangeLog: * gcc.target/i386/pr96955-builtin_thread_pointer.c: New test. --- gcc/config/i386/i386.md | 5 ++++ .../i386/pr96955-builtin_thread_pointer.c | 28 +++++++++++++++++++ 2 files changed, 33 insertions(+) create mode 100644 gcc/testsuite/gcc.target/i386/pr96955-builtin_thread_pointer.c diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 446793b78db..55b1852cf9a 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -15433,6 +15433,11 @@ (define_insn_and_split "*tls_local_dynamic_32_once" (clobber (reg:CC FLAGS_REG))])]) ;; Load and add the thread base pointer from %:0. +(define_expand "get_thread_pointer" + [(set (match_operand:PTR 0 "register_operand") + (unspec:PTR [(const_int 0)] UNSPEC_TP))] + "") + (define_insn_and_split "*load_tp_" [(set (match_operand:PTR 0 "register_operand" "=r") (unspec:PTR [(const_int 0)] UNSPEC_TP))] diff --git a/gcc/testsuite/gcc.target/i386/pr96955-builtin_thread_pointer.c b/gcc/testsuite/gcc.target/i386/pr96955-builtin_thread_pointer.c new file mode 100644 index 00000000000..dce31488117 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr96955-builtin_thread_pointer.c @@ -0,0 +1,28 @@ +/* { dg-do compile } */ +/* { dg-options "-mtls-direct-seg-refs -O2 -masm=att" } */ + +int* +foo1 () +{ + return (int*) __builtin_thread_pointer (); +} + +/* { dg-final { scan-assembler "mov\[lq\]\[ \t\]*%\[fg\]s:0, %\[re\]ax" } } */ + +int +foo2 () +{ + int* p = (int*) __builtin_thread_pointer (); + return p[4]; +} + +/* { dg-final { scan-assembler "movl\[ \t\]*%\[fg\]s:16, %eax" } } */ + +int +foo3 (int i) +{ + int* p = (int*) __builtin_thread_pointer (); + return p[i]; +} + +/* { dg-final { scan-assembler "movl\[ \t\]*%\[fg\]s:0\\(,%\[a-z0-9\]*,4\\), %eax" } } */ -- 2.18.1