1 # This file defines a tcl proc to assist with testing the llvm2cpp. There are 2 # no llvm2cpp specific test cases. Instead, it utilizes all the existing test 3 # cases and makes sure llvm2cpp can run them. The basic idea is that we find 4 # all the LLVM Assembly (*.ll) files, run llvm2cpp on them to generate a C++ 5 # program, compile those programs, run them and see if what they produce matches 6 # the original input to llvm2cpp. 7 8 proc llvm2cpp-test { files } { 9 global subdir llvmtoolsdir llvmlibsdir objdir srcdir objroot srcroot 10 set timeout 30 11 set path [file join $objdir $subdir] 12 set llc [file join $llvmtoolsdir llc ] 13 set llvmas [file join $llvmtoolsdir llvm-as ] 14 set llvmdis [file join $llvmtoolsdir llvm-dis ] 15 16 #Make Output Directory if it does not exist already 17 if { [file exists path] } { 18 cd $path 19 } else { 20 file mkdir $path 21 cd $path 22 } 23 24 file mkdir Output 25 26 foreach test $files { 27 28 set filename [file tail $test] 29 set generated [file join Output $filename.cpp] 30 set executable [file join Output $filename.exe] 31 set output [file join Output $filename.gen] 32 set assembly [file join Output $filename.asm] 33 set testname [file rootname $filename] 34 set bytecode [file join Output $filename.bc] 35 36 # Note that the stderr for llvm-as, etc. must be redirected to /dev/null 37 # because otherwise exec will see the msgs and return 1 even though they 38 # are only warnings. If real errors are generated on stderr then llvm-as 39 # will return a non-zero retval anyway so we're good. 40 41 # Scan the test file to see if there's an XFAIL file. If so, don't run it 42 set retval [ catch { 43 exec -keepnewline grep XFAIL $test 2>/dev/null } msg ] 44 if { $retval == 0 } { 45 continue; 46 } 47 48 # Run llvm-as/llvm-dis 49 set pipeline llvm-as|llvm-dis 50 set retval [ catch { 51 exec -keepnewline $llvmas < $test -o - | $llvmdis -o $assembly 2>/dev/null } msg ] 52 53 if { $retval != 0 } { 54 fail "$test: $pipeline returned $retval\n$msg" 55 continue 56 } 57 58 # Build bytecode for llvm2cpp input 59 set retval [ catch { 60 exec -keepnewline $llvmas < $assembly > $bytecode 2>/dev/null } msg ] 61 62 if { $retval != 0 } { 63 fail "$test: llvm-as returned $retval\n$msg" 64 continue 65 } 66 67 set retval [ catch { 68 exec -keepnewline $llc -march=cpp -o $generated < $bytecode 2>/dev/null } msg] 69 70 if { $retval != 0 } { 71 fail "$test: llvm2cpp returned $retval\n$msg" 72 continue 73 } 74 75 set retval [ catch { 76 exec -keepnewline gcc -g -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -o $executable $generated -I$srcroot/include -I$objroot/include -L$llvmlibsdir -lLLVMCore -lLLVMSupport -lLLVMSystem -lstdc++ } msg ] 77 if { $retval != 0 } { 78 fail "$test: gcc returned $retval\n$msg" 79 continue 80 } 81 82 set retval [ catch { exec -keepnewline $executable > $output } msg ] 83 if { $retval != 0 } { 84 set execname [file tail $executable] 85 fail "$test: $execname returned $retval:\n$msg" 86 continue 87 } 88 89 set retval [ catch { 90 exec -keepnewline diff $assembly $output } msg ] 91 92 if { $retval != 0 } { 93 fail "$test: diff returned $retval:\n$msg" 94 continue 95 } 96 pass "$test" 97 } 98 } 99 100 101
