llvm-svn: 108929

llvm-svn: 108928

which generates more efficient and more obviously conformant
code.  We now test for overflow of the multiply then force
the result to -1 if so.  On X86, this generates nice code
like this:

__Z4testl:                              ## @_Z4testl
## BB#0:                                ## %entry
	subl	$12, %esp
	movl	$4, %eax
	mull	16(%esp)
	testl	%edx, %edx
	movl	$-1, %ecx
	cmovel	%eax, %ecx
	movl	%ecx, (%esp)
	call	__Znam
	addl	$12, %esp
	ret

llvm-svn: 108927

llvm-svn: 108926

llvm-svn: 108925

ELF specification.

llvm-svn: 108924

llvmCore for the iOS Simulator.

llvm-svn: 108922

llvm-svn: 108919

llvm-svn: 108918

Implements radar 8203301.

llvm-svn: 108917

llvm-svn: 108916

causing clang to compile this code into something that correctly throws a
length error, fixing a potential integer overflow security attack:

void *test(long N) {
  return new int[N];
}

int main() {
  test(1L << 62);
}

We do this even when exceptions are disabled, because it is better for the
code to abort than for the attack to succeed.

This is heavily based on a patch that Fariborz wrote.

llvm-svn: 108915

replaced with setDebugLoc and getDebugLoc.

llvm-svn: 108914

which is the part of the file that contains all of the initial
comments, includes, and preprocessor directives that occur before any
of the actual code. Added a new -print-preamble cc1 action that is
only used for testing.

llvm-svn: 108913

llvm-svn: 108912

avoiding MDNode overhead.

llvm-svn: 108911

avoiding MDNode overhead.

llvm-svn: 108909

llvm-svn: 108908

llvm-svn: 108907

llvm-svn: 108906

llvm-svn: 108905

llvm-svn: 108904

derived 'PrintfConversionSpecifier' from this class.  We will do the same for
'ScanfConversionSpecifier'.

llvm-svn: 108903

with analyze_scanf::ConversionSpecifier::Kind.

llvm-svn: 108902

llvm-svn: 108901

llvm-svn: 108900

llvm-svn: 108899

llvm-svn: 108898

analagous enum in analyze_scanf.  This is prep for refactoring the logic for handling
ConversionSpecifiers for both scanf and printf.

llvm-svn: 108897

llvm-svn: 108896

llvm-svn: 108895

llvm-svn: 108893

llvm-svn: 108892

llvm-svn: 108891

llvm-svn: 108890

llvm-svn: 108889

llvm-svn: 108888

llvm-svn: 108887

llvm-svn: 108886

llvm-svn: 108885