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t-zdisp.sh revision 1.1 
      1 #! /bin/sh
      2 #
      3 # Copyright 2000 Free Software Foundation, Inc.
      4 #
      5 # This file is part of the GNU MP Library.
      6 #
      7 # The GNU MP Library is free software; you can redistribute it and/or modify
      8 # it under the terms of the GNU Lesser General Public License as published
      9 # by the Free Software Foundation; either version 3 of the License, or (at
     10 # your option) any later version.
     11 #
     12 # The GNU MP Library is distributed in the hope that it will be useful, but
     13 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     14 # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
     15 # License for more details.
     16 #
     17 # You should have received a copy of the GNU Lesser General Public License
     18 # along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.
     19 
     20 
     21 # Usage: cd $(builddir)/mpn
     22 #        $(srcdir)/x86/t-zdisp.sh
     23 #
     24 # Run the Zdisp() macro instructions through the assembler to check
     25 # the encodings used.  Mismatches are printed, no output means all ok.
     26 #
     27 # This program is only meant for use during development.  It can be
     28 # run in the mpn build directory of any x86 configuration.
     29 #
     30 # For this test the assembler needs to generate byte sized 0
     31 # displacements when given something like 0(%eax).  Recent versions of
     32 # gas are suitable (eg. 2.9.x or 2.10.x).
     33 
     34 set -e
     35 
     36 cat >tmp-zdisptest.asm <<\EOF
     37 
     38 include(`../config.m4')
     39 
     40 dnl  Redefine Zdisp_match to output its pattern and encoding.
     41 define(`Zdisp_match',
     42 `define(`Zdisp_found',1)dnl
     43 ifelse(`$2',0,`	$1	$2$3, $4')`'dnl
     44 ifelse(`$3',0,`	$1	$2, $3$4')`'dnl
     45 
     46 	.byte	$5
     47 ')
     48 	.text
     49 	Zdisp()
     50 EOF
     51 
     52 m4 tmp-zdisptest.asm >tmp-zdisptest.s
     53 as -o tmp-zdisptest.o tmp-zdisptest.s
     54 
     55 # Demand duplicates from the instruction patterns and byte encodings.
     56 objdump -d tmp-zdisptest.o | awk '
     57 /^ *[a-z0-9]+:/ {
     58 	sub(/^ *[a-z0-9]+:/,"")
     59         print
     60 }' | sort | uniq -u
     61