ABITest: Support --test-layout option for generating
size/alignment/offsetof based tests of types instead of calling
convention tests.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63167 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/ABITest/ABITestGen.py b/utils/ABITest/ABITestGen.py
index 957ce2b..8f922d7 100755
--- a/utils/ABITest/ABITestGen.py
+++ b/utils/ABITest/ABITestGen.py
@@ -21,6 +21,7 @@
self.types = {}
self.testValues = {}
self.testReturnValues = {}
+ self.layoutTests = []
if info:
for f in (self.output,self.outputHeader,self.outputTests,self.outputDriver):
@@ -41,9 +42,16 @@
print >>self.outputDriver, 'int main(int argc, char **argv) {'
def finish(self):
+ if self.layoutTests:
+ print >>self.output, 'int main(int argc, char **argv) {'
+ for f in self.layoutTests:
+ print >>self.output, ' %s();' % f
+ print >>self.output, ' return 0;'
+ print >>self.output, '}'
+
if self.outputDriver:
print >>self.outputDriver, ' return 0;'
- print >>self.outputDriver, '}'
+ print >>self.outputDriver, '}'
def getTypeName(self, T):
if isinstance(T,BuiltinType):
@@ -62,6 +70,20 @@
self.types[T] = name
return name
+ def writeLayoutTest(self, i, ty):
+ tyName = self.getTypeName(ty)
+ tyNameClean = tyName.replace(' ','_').replace('*','star')
+ fnName = 'test_%s' % tyNameClean
+
+ print >>self.output,'void %s(void) {' % fnName
+ self.printSizeOfType(' %s'%fnName, tyName, ty, self.output)
+ self.printAlignOfType(' %s'%fnName, tyName, ty, self.output)
+ self.printOffsetsOfType(' %s'%fnName, tyName, ty, self.output)
+ print >>self.output,'}'
+ print >>self.output
+
+ self.layoutTests.append(fnName)
+
def writeFunction(self, i, FT):
args = ', '.join(['%s arg%d'%(self.getTypeName(t),i) for i,t in enumerate(FT.argTypes)])
if not args:
@@ -194,6 +216,16 @@
else:
raise NotImplementedError,'Cannot make tests values of type: "%s"'%(t,)
+ def printSizeOfType(self, prefix, name, t, output=None, indent=2):
+ print >>output, '%*sprintf("%s: sizeof(%s) = %%ld\\n", sizeof(%s));'%(indent, '', prefix, name, name)
+ def printAlignOfType(self, prefix, name, t, output=None, indent=2):
+ print >>output, '%*sprintf("%s: __alignof__(%s) = %%ld\\n", __alignof__(%s));'%(indent, '', prefix, name, name)
+ def printOffsetsOfType(self, prefix, name, t, output=None, indent=2):
+ if isinstance(t, RecordType):
+ for i,f in enumerate(t.fields):
+ fname = 'field%d' % i
+ print >>output, '%*sprintf("%s: __builtin_offsetof(%s, %s) = %%ld\\n", __builtin_offsetof(%s, %s));'%(indent, '', prefix, name, fname, name, fname)
+
def printValueOfType(self, prefix, name, t, output=None, indent=2):
if output is None:
output = self.output
@@ -263,6 +295,9 @@
parser.add_option("-D", "--output-driver", dest="outputDriver", metavar="FILE",
help="write test driver to FILE [default %default]",
type=str, default=None)
+ parser.add_option("", "--test-layout", dest="testLayout", metavar="FILE",
+ help="test structure layout",
+ action='store_true', default=False)
group = OptionGroup(parser, "Type Enumeration Options")
# Builtins - Ints
@@ -325,7 +360,7 @@
action="store_false", default=True)
group.add_option("", "--vector-sizes", dest="vectorSizes",
help="comma separated list of sizes for vectors [default %default]",
- action="store", type=str, default='4,8', metavar="N")
+ action="store", type=str, default='8,16', metavar="N")
group.add_option("", "--max-args", dest="functionMaxArgs",
help="maximum number of arguments per function [default %default]",
@@ -369,7 +404,8 @@
btg = FixedTypeGenerator([BuiltinType(n,s) for n,s in builtins])
sbtg = FixedTypeGenerator([BuiltinType('char',1),
BuiltinType('int',4),
- BuiltinType('float',4)])
+ BuiltinType('float',4),
+ BuiltinType('double',8)])
atg = AnyTypeGenerator()
artg = AnyTypeGenerator()
@@ -408,7 +444,10 @@
atg = AnyTypeGenerator()
makeGenerator(atg, base, True, False)
- ftg = FunctionTypeGenerator(atg, opts.functionUseReturn, opts.functionMaxArgs)
+ if opts.testLayout:
+ ftg = atg
+ else:
+ ftg = FunctionTypeGenerator(atg, opts.functionUseReturn, opts.functionMaxArgs)
# Override max,min,count if finite
if opts.maxIndex is None:
@@ -447,23 +486,29 @@
info += '// Generated: %s\n'%(time.strftime('%Y-%m-%d %H:%M'),)
info += '// Cardinality of function generator: %s\n'%(ftg.cardinality,)
info += '// Cardinality of type generator: %s\n'%(atg.cardinality,)
+
+ if opts.testLayout:
+ info += '\n#include <stdio.h>'
P = TypePrinter(output,
outputHeader=outputHeader,
outputTests=outputTests,
outputDriver=outputDriver,
- headerName=opts.outputHeader,
+ headerName=opts.outputHeader,
info=info)
def write(N):
- try:
+ try:
FT = ftg.get(N)
except RuntimeError,e:
if e.args[0]=='maximum recursion depth exceeded':
print >>sys.stderr,'WARNING: Skipped %d, recursion limit exceeded (bad arguments?)'%(N,)
return
raise
- P.writeFunction(N, FT)
+ if opts.testLayout:
+ P.writeLayoutTest(N, FT)
+ else:
+ P.writeFunction(N, FT)
if args:
[write(int(a)) for a in args]