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# This file defines a tcl proc to assist with testing the llvm2cpp. There are
# no llvm2cpp specific test cases. Instead, it utilizes all the existing test
# cases and makes sure llvm2cpp can run them. The basic idea is that we find
# all the LLVM Assembly (*.ll) files, run llvm2cpp on them to generate a C++
# program, compile those programs, run them and see if what they produce matches
# the original input to llvm2cpp.
proc llvm2cpp-test { files } {
global subdir llvmtoolsdir llvmlibsdir objdir srcdir objroot srcroot
set timeout 30
set path [file join $objdir $subdir]
set llvm2cpp [file join $llvmtoolsdir llvm2cpp ]
set llvmas [file join $llvmtoolsdir llvm-as ]
set llvmdis [file join $llvmtoolsdir llvm-dis ]
#Make Output Directory if it does not exist already
if { [file exists path] } {
cd $path
} else {
file mkdir $path
cd $path
}
file mkdir Output
foreach test $files {
set filename [file tail $test]
set generated [file join Output $filename.cpp]
set executable [file join Output $filename.exe]
set output [file join Output $filename.gen]
set assembly [file join Output $filename.asm]
set testname [file rootname $filename]
set bytecode [file join Output $filename.bc]
# Note that the stderr for llvm-as must be redirected to /dev/null because
# otherwise exec will see the msgs and return 1 even though they are only
# warnings. If real errors are generated on stderr then llvm-as will return
# a non-zero retval anyway so we're good.
set retval [ catch {
exec -keepnewline $llvmas $test -o - | $llvmdis -f -o $assembly 2>/dev/null } msg ]
if { $retval != 0 } {
fail "$test: llvm-as/llvm-dis returned $retval\n$msg"
continue
}
set retval [ catch {
exec -keepnewline $llvm2cpp -f -o $generated < $test 2>/dev/null } msg]
if { $retval != 0 } {
fail "$test: llvm2cpp returned $retval\n$msg"
continue
}
set retval [ catch {
exec -keepnewline gcc -g -D__STDC_LIMIT_MACROS -o $executable $generated -I$srcroot/include -I$objroot/include -L$llvmlibsdir -lLLVMCore -lLLVMSupport -lLLVMbzip2 -lLLVMSystem -lstdc++ } msg ]
if { $retval != 0 } {
fail "$test: gcc returned $retval\n$msg"
continue
}
set retval [ catch { exec -keepnewline $executable > $output } msg ]
if { $retval != 0 } {
set execname [file tail $executable]
fail "$test: $execname returned $retval:\n$msg"
continue
}
set retval [ catch {
exec -keepnewline diff $assembly $output } msg ]
if { $retval != 0 } {
fail "$test: diff returned $retval:\n$msg"
continue
}
pass "$test"
}
}
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