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

like this:

void *test(long N) {
  return new int[N][42][42];
}

the loop generates two dead mul instructions:

  %tmp = load i64* %N.addr                        ; <i64> [#uses=2]
  %0 = mul i64 %tmp, 7056                         ; <i64> [#uses=1]
  %1 = mul i64 %tmp, 42                           ; <i64> [#uses=1]
  %2 = mul i64 %1, 42                             ; <i64> [#uses=0]
  %call = call noalias i8* @_Znam(i64 %0)         ; <i8*> [#uses=1]

The scale of these multiplies is already handled by the typesize stuff.

llvm-svn: 108884

llvm-svn: 108883

EmitCXXNewAllocSize.  This code uses IRBuilder, which does
constant folding already.

llvm-svn: 108882

llvm-svn: 108879

llvm-svn: 108878

Convert the internal PassRegistrar class into a new, external PassRegistry class.  No intended functionality change at this point.

llvm-svn: 108877