positive and negative forms of constants together.  This 
allows us to compile:

int foo(int x, int y) {
    return (x-y) + (x-y) + (x-y);
}

into:

_foo:                                                       ## @foo
	subl	%esi, %edi
	leal	(%rdi,%rdi,2), %eax
	ret

instead of (where the 3 and -3 were not factored):

_foo:
        imull   $-3, 8(%esp), %ecx
        imull   $3, 4(%esp), %eax
        addl    %ecx, %eax
        ret

this started out as:
    movl    12(%ebp), %ecx
    imull   $3, 8(%ebp), %eax
    subl    %ecx, %eax
    subl    %ecx, %eax
    subl    %ecx, %eax
    ret

This comes from PR5359.

llvm-svn: 92381

llvm-svn: 92380

class), provide a suggestion for the type or class found. However,
since we can't recover properly in this case, don't provide a fix-it
hint. Example:

test/FixIt/typo.m:8:3: error: use of undeclared identifier 'NSstring';
did you
      mean 'NSString'?
  NSstring *str = @"A string";
  ...
  ^
1 diagnostic generated.

llvm-svn: 92379

llvm-svn: 92378

llvm-svn: 92377

test/FixIt/typo.c:19:4: error: field designator 'bunds' does not refer to any
      field in type 'struct Window'; did you mean 'bounds'?
  .bunds.
   ^~~~~
   bounds

llvm-svn: 92376

llvm-svn: 92375

llvm-svn: 92374

This allows us to optimize test12 into:

define i32 @test12(i32 %X) {
  %factor = mul i32 %X, -3                        ; <i32> [#uses=1]
  %Z = add i32 %factor, 6                         ; <i32> [#uses=1]
  ret i32 %Z
}

instead of:

define i32 @test12(i32 %X) {
  %Y = sub i32 6, %X                              ; <i32> [#uses=1]
  %C = sub i32 %Y, %X                             ; <i32> [#uses=1]
  %Z = sub i32 %C, %X                             ; <i32> [#uses=1]
  ret i32 %Z
}

llvm-svn: 92373

sorted, so we can just do a linear scan.

llvm-svn: 92372

llvm-svn: 92371

llvm-svn: 92370

llvm-svn: 92369

fix RemoveDeadBinaryOp to actually do something.

llvm-svn: 92368

llvm-svn: 92367

instead of std::vector.

llvm-svn: 92366

Make sure that an overriding return type is complete before checking if it's covariant. Fixes PR5920.

llvm-svn: 92365

llvm-svn: 92364

improve some comments, simplify a bit of code.

llvm-svn: 92363

llvm-svn: 92362

Remove rtti.cpp, it's very fragile and has been marked XFAIL for a while now. Between rtti-layout.cpp and rtti-linkage.cpp, RTTI testing should be covered.

llvm-svn: 92361

llvm-svn: 92360

warning: comparison between signed and unsigned integer expressions
llvm-svn: 92359

llvm-svn: 92358

llvm-svn: 92357

test/FixIt/typo.cpp:41:15: error: initializer 'base' does not name a non-static
      data member or base class; did you mean the base class 'Base'?
  Derived() : base(),
              ^~~~
              Base
test/FixIt/typo.cpp:42:15: error: initializer 'ember' does not name a non-static
      data member or base class; did you mean the member 'member'?
              ember() { }
              ^~~~~
              member

llvm-svn: 92355

miscompilation, PR5458.

llvm-svn: 92354

llvm-svn: 92353

llvm-svn: 92352

llvm-svn: 92351

typo.cpp:18:1: error: use of undeclared identifier 'other_std'; did
      you mean 'otherstd'?
other_std::strng str1;
^~~~~~~~~
otherstd

llvm-svn: 92350

llvm-svn: 92349

typo.cpp:27:8: error: no template named 'basic_sting' in namespace 'std'; 
    did you mean 'basic_string'?
  std::basic_sting<char> b2;
  ~~~~~^~~~~~~~~~~
       basic_string

llvm-svn: 92348

llvm-svn: 92347

llvm-svn: 92346

  s.fnd("hello")

llvm-svn: 92345

llvm-svn: 92344

llvm-svn: 92343

Add new states for symbolic regions tracked by malloc checker. This enables us
to do malloc checking more accurately. See test case.

Based on Lei Zhang's patch and discussion.

llvm-svn: 92342

typo.cpp:22:10: error: use of undeclared identifier 'radious'; did
      you mean 'radius'?
  return radious * pi;
         ^~~~~~~
         radius

This was super-easy, since we already had decent recovery by looking
for names in dependent base classes.

llvm-svn: 92341