#===-test/lib/identity.exp - Script for identity tests ---------------------===#
#
#                      High Level Virtual Machine (HLVM)
# 
#  Copyright (C) 2006 Reid Spencer. All Rights Reserved.
# 
#  This software is free software; you can redistribute it and/or modify it 
#  under the terms of the GNU Lesser General Public License as published by 
#  the Free Software Foundation; either version 2.1 of the License, or (at 
#  your option) any later version.
# 
#  This software 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 Lesser General Public License for 
#  more details.
# 
#  You should have received a copy of the GNU Lesser General Public License 
#  along with this library in the file named LICENSE.txt; if not, write to the 
#  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
#  MA 02110-1301 USA
# 
#===------------------------------------------------------------------------===#
proc hlvm-ret-zero-test { pat forceret0 } {
  global srcdir subdir objdir tmpdir objrootdir llc llvm_ld gxx APR_lib
  set outdir [file join $objdir $subdir]
  set compiler [file join $objrootdir tools hlvm-compiler hlvm-compiler ]
  set source [file join $srcdir $subdir ]
  set rtlib [file join $objrootdir hlvm Runtime HLVMRuntime.bca ]
  set baselib [file join $objrootdir hlvm Base HLVMBase.bca ]
  set vmmain [file join $objrootdir tools hlvm hlvm.bc ]
  set files [lsort [
    glob -nocomplain -tails -types {f r} -directory $source $pat]]
  set dirs [lsort [
    glob -nocomplain -tails -types {d r} -directory $source *]]

  if { [file isdirectory $outdir] } {
    cd $outdir
  } else {
    if { [file exists $outdir] } {
      fail "identity: $outdir exists and is not a directory. Remove it"
      exit(2)
    } else {
      file mkdir $outdir
    }
  }
  
  foreach test $files {
    set output [file join $outdir ${test}.out]
    set testname      [file rootname $test]
    set testsrc       [file join $source $test]
    set testexe       [file join $outdir $testname ]
    set testbc        [file join $outdir ${test}.bc ]
    set testlinked    [file join $outdir ${test}.linked ]
    set testlinkedbc  [file join $outdir ${test}.linked.bc ]
    set tests         [file join $outdir ${test}.s ]
    set retval [ catch { exec $compiler $testsrc -llvmbc -o $testbc } msg ] 
    if { $retval != 0 } {
      fail "$test: hlvm-compiler returned $retval:\n$msg"
    } else {
      set retval [ catch { exec $llvm_ld -o $testlinked $testbc $vmmain $rtlib } msg ]
      if { $retval != 0 } {
        fail "$test: llvm-ld returned $retval:\n$msg"
      } else {
        set retval [ catch { exec $llc -fast -f -o $tests $testlinkedbc } msg ]
        if { $retval != 0 } {
          fail "$test: llc returned $retval:\n$msg"
        } else {
          set retval [ catch { exec $gxx -g -o $testexe $tests -L$APR_lib -lapr-1 -laprutil-1 } msg ]
          if { $retval != 0 } {
            fail "$test: gxx returned $retval:\n$msg"
          } else {
            set retval [ catch {exec $testexe $testname } msg ]
            if {$retval != 0} {
              if { ! $forceret0 } {
                pass "$test"
              } else {
                fail "$test: $testexe returned $retval:\n$msg"
              }
            } else {
              pass "$test"
            }
          }
        }
      }
    }
  }
}