From patchwork Tue Apr 9 21:39:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stafford Horne X-Patchwork-Id: 32236 Received: (qmail 41686 invoked by alias); 9 Apr 2019 21:40:02 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Delivered-To: mailing list gdb-patches@sourceware.org Received: (qmail 41575 invoked by uid 89); 9 Apr 2019 21:40:01 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-23.4 required=5.0 tests=AWL, BAYES_00, FREEMAIL_FROM, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_SHORT, RCVD_IN_DNSWL_NONE, SPF_PASS autolearn=ham version=3.3.1 spammy=wired, divide, POP, HX-Received:9a95 X-HELO: mail-pl1-f172.google.com Received: from mail-pl1-f172.google.com (HELO mail-pl1-f172.google.com) (209.85.214.172) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Tue, 09 Apr 2019 21:39:59 +0000 Received: by mail-pl1-f172.google.com with SMTP id ck15so16353plb.3; Tue, 09 Apr 2019 14:39:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=U4OdIWsZ1XzAS/3AhpPlCQVOcnSGyJzBW1GAmUe2+xs=; b=MtjEA7MaoGA+hhtnp01txBlYvGeD+Pe2PrJ0hSGdM0uCqU2Oh8EF8bXUxYndVheM4R 0esRSGiG44eTbh/k7oDmtJrVDLzZWG4RUzOQA2xe8u4vvJEv5p4h7WrYeXjifya99xi9 1Ehqt1Pc1F7X5BTkTcbFau81p7Ss5yseme8Ww93Ixq0JwfgDOTRua8D3W4b1O+FW9cI7 uuj0L2dRzHrGEKL0fcLIAJ6Mjc0ImGzMEij4frhFmwhh59EhrbUCI9ogZ3ZBwaS6urMY FKp8N4/uKsNSlweijSXxnXrNQJLEqxovTDsN3ZVmpPl/5vEyYPnkJovaN7c0jCcMDohE xTSA== Return-Path: Received: from localhost (g191.61-115-60.ppp.wakwak.ne.jp. [61.115.60.191]) by smtp.gmail.com with ESMTPSA id 81sm16707334pfy.89.2019.04.09.14.39.56 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 09 Apr 2019 14:39:56 -0700 (PDT) From: Stafford Horne To: GDB patches , GNU Binutils Cc: Andrey Bacherov , Openrisc , Stafford Horne Subject: [PATCH v2 5/6] sim/or1k: Add test for 64-bit fpu operations Date: Wed, 10 Apr 2019 06:39:24 +0900 Message-Id: <20190409213925.32699-6-shorne@gmail.com> In-Reply-To: <20190409213925.32699-1-shorne@gmail.com> References: <20190409213925.32699-1-shorne@gmail.com> MIME-Version: 1.0 X-IsSubscribed: yes This is a very basic test but it ensure the machine is wired up correctly and that the assembler works. sim/testsuite/sim/or1k/ChangeLog: * fpu64a32.S: New file. --- sim/testsuite/sim/or1k/fpu64a32.S | 172 ++++++++++++++++++++++++++++++ 1 file changed, 172 insertions(+) create mode 100644 sim/testsuite/sim/or1k/fpu64a32.S diff --git a/sim/testsuite/sim/or1k/fpu64a32.S b/sim/testsuite/sim/or1k/fpu64a32.S new file mode 100644 index 0000000000..6c40170854 --- /dev/null +++ b/sim/testsuite/sim/or1k/fpu64a32.S @@ -0,0 +1,172 @@ +/* Tests some basic fpu instructions. + + Copyright (C) 2017-2019 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +# mach: or1k +# output: report(0x400921f9);\n +# output: report(0xf01b866e);\n +# output: report(0x4005bf09);\n +# output: report(0x95aaf790);\n +# output: report(0x00000000);\n +# output: report(0x00001234);\n +# output: \n +# output: report(0x40b23400);\n +# output: report(0x00000000);\n +# output: report(0x40b23400);\n +# output: report(0x00000000);\n +# output: \n +# output: report(0x40177081);\n +# output: report(0xc2e33eff);\n +# output: report(0x400921f9);\n +# output: report(0xf01b866e);\n +# output: \n +# output: report(0x40211456);\n +# output: report(0x587dfabf);\n +# output: report(0x400921f9);\n +# output: report(0xf01b866d);\n +# output: \n +# output: report(0x00000001);\n +# output: \n +# output: WARNING: ignoring fpu error caught in fast mode.\n +# output: report(0x00000000);\n +# output: \n +# output: exit(0)\n + +#include "or1k-asm-test-helpers.h" + + STANDARD_TEST_ENVIRONMENT + + .section .exception_vectors + + /* Floating point exception. */ + .org 0xd00 + + /* The handling is a bit dubious at present. We just patch the + instruction with l.nop and restart. This will go wrong in branch + delay slots. But we don't have those in this test. */ + l.addi r1, r1, -EXCEPTION_STACK_SKIP_SIZE + PUSH r2 + PUSH r3 + /* Save the address of the instruction that caused the problem. */ + MOVE_FROM_SPR r2, SPR_EPCR_BASE + LOAD_IMMEDIATE r3, 0x15000000 /* Opcode for l.nop */ + l.sw -4(r2), r3 + POP r3 + POP r2 + l.addi r1, r1, EXCEPTION_STACK_SKIP_SIZE + l.rfe + + .section .data + .align 4 + .type pi, @object + .size pi, 8 +anchor: +pi: + .double 3.14159 + + .type e, @object + .size e, 8 +e: + .double 2.71828 + + .type large, @object + .size large, 8 +large: + .long 0 + .long 0x1234 + + .section .text +start_tests: + PUSH LINK_REGISTER_R9 + + /* Test lf.itof.d int to double conversion. Setting up: + * r11 pointer to data + * r12,r13 pi as double + * r14,r15 e as double + * r16,r17 a long long + */ + l.ori r11, r0, ha(anchor) + l.addi r11, r11, lo(anchor) + l.lwz r12, 0(r11) + l.lwz r13, 4(r11) + + l.lwz r14, 8(r11) + l.lwz r15, 12(r11) + + l.lwz r16, 16(r11) + l.lwz r18, 20(r11) + + /* Output to ensure we loaded it correctly. */ + REPORT_REG_TO_CONSOLE r12 + REPORT_REG_TO_CONSOLE r13 + + REPORT_REG_TO_CONSOLE r14 + REPORT_REG_TO_CONSOLE r15 + + REPORT_REG_TO_CONSOLE r16 + REPORT_REG_TO_CONSOLE r18 + PRINT_NEWLINE_TO_CONSOLE + + /* Convert the big long to a double. */ + lf.itof.d r16, r16 + REPORT_REG_TO_CONSOLE r16 + REPORT_REG_TO_CONSOLE r18 + + /* Convert the double back to a long, it should match before. */ + lf.ftoi.d r16, r16 + lf.itof.d r16, r16 + + REPORT_REG_TO_CONSOLE r16 + REPORT_REG_TO_CONSOLE r18 + + PRINT_NEWLINE_TO_CONSOLE + + /* Add and subtract some double values. */ + lf.add.d r12, r12, r14 + REPORT_REG_TO_CONSOLE r12 + REPORT_REG_TO_CONSOLE r13 + + lf.sub.d r12, r12, r14 + REPORT_REG_TO_CONSOLE r12 + REPORT_REG_TO_CONSOLE r13 + PRINT_NEWLINE_TO_CONSOLE + + /* Multiply and divide double values. */ + lf.mul.d r12, r12, r14 + REPORT_REG_TO_CONSOLE r12 + REPORT_REG_TO_CONSOLE r13 + + lf.div.d r12, r12, r14 + REPORT_REG_TO_CONSOLE r12 + REPORT_REG_TO_CONSOLE r13 + PRINT_NEWLINE_TO_CONSOLE + + /* Test lf.sfge.s set flag if r6 >= r10. */ + lf.sfge.d r12, r14 + MOVE_FROM_SPR r2, SPR_SR + REPORT_BIT_TO_CONSOLE r2, SPR_SR_F + PRINT_NEWLINE_TO_CONSOLE + + /* Test raising an exception by dividing by 0. */ + MOVE_FROM_SPR r2, SPR_FPCSR + l.ori r2, r2, 0x1 + MOVE_TO_SPR SPR_FPCSR, r2 +div0: lf.div.d r2, r12, r0 + REPORT_EXCEPTION div0 + PRINT_NEWLINE_TO_CONSOLE + + POP LINK_REGISTER_R9 + RETURN_TO_LINK_REGISTER_R9