llvm-svn: 108949

it to just do the things that need to be done when an instruction
is deleted.

llvm-svn: 108948

llvm-svn: 108947

llvm-svn: 108946

llvm-svn: 108945

Fixes <rdar://problem/8212123>.

llvm-svn: 108944

doing an overflow check.

llvm-svn: 108943

llvm-svn: 108942

Determine which loop exit blocks need a 'pre-exit' block inserted.
Recognize when this would be impossible.

llvm-svn: 108941

llvm-svn: 108940

bitcode file, so that two bitcode files where the same metadata kind
name happens to have been assigned a different ID can still be
linked together.

Eliminate the restriction that metadata kind IDs can't be 0.

Change MD_dbg from 1 to 0, because we can now, and because it's
less mysterious that way.

llvm-svn: 108939

handlers.

llvm-svn: 108938

llvm-svn: 108937

llvm-svn: 108936

threshold a bit per experimentation.

llvm-svn: 108935

arm explicitly.  X86 and ARM are the only two targets that support
disassembly, so our explicit list is enough.  These other targets
weren't getting pulled in anyway though, since there were no 
references to their symbols.

llvm-svn: 108934

enabled.  Add direct ARM support.

llvm-svn: 108933

Move more functionality from Pass.cpp to PassRegistry.cpp.  This global will go away eventually, but for now we still need it around.

llvm-svn: 108932

llvm-svn: 108931

llvm-svn: 108930

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