gcc/testsuite/lib/dg-pch.exp

   1 # Copyright (C) 2003-2013 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with GCC; see the file COPYING3.  If not see
  15 # <http://www.gnu.org/licenses/>.
  16
  17 load_lib copy-file.exp
  18
  19 proc pch-init { args } {
  20     global pch_unsupported_debug pch_unsupported
  21
  22     if [info exists pch_unsupported_debug] {
  23         error "pch-init: pch_unsupported_debug is not empty as expected"
  24     }
  25     if [info exists pch_unsupported] {
  26         error "pch-init: pch_unsupported is not empty as expected"
  27     }
  28
  29     set result [check_compile pchtest object "int i;" "-g -x c-header"]
  30     set pch_unsupported_debug \
  31         [regexp "debug format cannot be used with pre-compiled headers" \
  32                 [lindex $result 0]]
  33
  34     set pch_unsupported 0
  35     if { $pch_unsupported_debug } {
  36         verbose -log "pch is unsupported with the debug info format"
  37
  38         set result [check_compile pchtest object "int i;" "-x c-header"]
  39             set pch_unsupported \
  40                 [regexp "debug format cannot be used with pre-compiled headers" \
  41                         [lindex $result 0]]
  42     }
  43 }
  44
  45 proc pch-finish { args } {
  46     global pch_unsupported_debug pch_unsupported
  47     unset pch_unsupported_debug
  48     unset pch_unsupported
  49 }
  50
  51 proc check_effective_target_pch_supported_debug { } {
  52     global pch_unsupported_debug
  53     if { $pch_unsupported_debug } {
  54         return 0
  55     }
  56     return 1
  57 }
  58
  59 proc dg-flags-pch { subdir test otherflags options suffix } {
  60     global runtests dg-do-what-default
  61     global pch_unsupported_debug pch_unsupported
  62
  63     # If we're only testing specific files and this isn't one of them, skip it.
  64     if ![runtest_file_p $runtests $test] {
  65         return
  66     }
  67
  68     if { [istarget "powerpc-ibm-aix*"] } {
  69         set torture_execute_xfail "powerpc-ibm-aix*"
  70         return
  71     }
  72
  73     set nshort "$subdir/[file tail $test]"
  74     set bname "[file rootname [file tail $nshort]]"
  75
  76     catch { file_on_host delete "$bname$suffix.gch" }
  77     catch { file_on_host delete "$bname.s" }
  78     catch { file_on_host delete "$bname.s-gch" }
  79
  80     # We don't try to use the loop-optimizing options, since they are highly
  81     # unlikely to make any difference to PCH.
  82     foreach flags $options {
  83         verbose "Testing $nshort, $otherflags $flags" 1
  84
  85         if { $pch_unsupported != 0 \
  86              || ( $pch_unsupported_debug != 0 && [regexp " -g" " $flags"] ) } {
  87             verbose -log "$nshort unsupported because debug format conflicts with PCH"
  88             unsupported "$nshort $flags"
  89             continue
  90         }
  91
  92         # For the header files, the default is to precompile.
  93         set dg-do-what-default precompile
  94         catch { file_on_host delete "$bname$suffix" }
  95         gcc_copy_files "[file rootname $test]${suffix}s" "$bname$suffix"
  96         dg-test -keep-output "./$bname$suffix" "$otherflags $flags" ""
  97
  98         # For the rest, the default is to compile to .s.
  99         set dg-do-what-default compile
 100
 101         set have_errs [llength [grep $test "{\[ \t\]\+dg-error\[ \t\]\+.*\[ \t\]\+}"]]
 102
 103         if { [ file_on_host exists "$bname$suffix.gch" ] } {
 104             # Ensure that the PCH file is used, not the original header.
 105             file_on_host delete "$bname$suffix"
 106
 107             # The flags "-Dwith_PCH" and "-Dwithout_PCH" are to distinguish the
 108             # two compiles in test summary lines.
 109             dg-test -keep-output $test "$otherflags $flags -I. -Dwith_PCH" ""
 110             file_on_host delete "$bname$suffix.gch"
 111             if { !$have_errs } {
 112                 if { [ file_on_host exists "$bname.s" ] } {
 113                     remote_upload host "$bname.s" "$bname.s-gch"
 114                     remote_download host "$bname.s-gch"
 115                     gcc_copy_files "[file rootname $test]${suffix}s" "$bname$suffix"
 116                     dg-test -keep-output $test "$otherflags $flags -I. -Dwithout_PCH" ""
 117                     remote_upload host "$bname.s"
 118                     set tmp [ diff "$bname.s" "$bname.s-gch" ]
 119                     if { $tmp == 0 } {
 120                         verbose -log "assembly file '$bname.s', '$bname.s-gch' comparison error"
 121                         fail "$nshort $otherflags $flags assembly comparison"
 122                     } elseif { $tmp == 1 } {
 123                         pass "$nshort $otherflags $flags assembly comparison"
 124                     } else {
 125                         fail "$nshort $otherflags $flags assembly comparison"
 126                     }
 127                     file_on_host delete "$bname$suffix"
 128                     file_on_host delete "$bname.s"
 129                     file_on_host delete "$bname.s-gch"
 130                 } else {
 131                     verbose -log "assembly file '$bname.s' missing"
 132                     fail "$nshort $flags assembly comparison"
 133                 }
 134             }
 135         } elseif { $pch_unsupported_debug == 0 \
 136                    || [llength [grep $test "{\[ \t\]\+dg-require-effective-target\[ \t\]\+pch_supported_debug\[ \t\]\+.*\[ \t\]\+}"]] > 0 } {
 137             verbose -log "pch file '$bname$suffix.gch' missing"
 138             fail "$nshort $flags"
 139             if { !$have_errs } {
 140                 verbose -log "assembly file '$bname.s' missing" 1
 141                 fail "$nshort $flags assembly comparison"
 142             }
 143         }
 144     }
 145 }
 146
 147 proc dg-pch { subdir test options suffix } {
 148   return [dg-flags-pch $subdir $test "" $options $suffix]
 149 }