llvm-svn: 95488

llvm-svn: 95477

Do not emit callseq instructions around sibcalls. This eliminated some unnecessary stack adjustments.

llvm-svn: 95475

addresses in dbg.declare; ignore this for the
moment to prevent things from breaking.

llvm-svn: 95471

llvm-svn: 95468

Function-local metadata whose operands had been optimized to no longer refer to function-local IR were not getting written by BitcodeWriter; solution is for these metadata to be enumerated just like global metadata.

llvm-svn: 95467

This time it's for real! I am going to hook this up in the frontends as well.

The inliner has some experimental heuristics for dealing with the inline hint.
When given a -respect-inlinehint option, functions marked with the inline
keyword are given a threshold just above the default for -O3.

We need some experiments to determine if that is the right thing to do.

llvm-svn: 95466

llvm-svn: 95461

Radar 7614112.

llvm-svn: 95456

llvm-svn: 95454

llvm-svn: 95453

llvm-svn: 95452

llvm-svn: 95448

redundant with a correct one) pattern that was added for the disassembler.

llvm-svn: 95446

llvm-svn: 95445

	pslld	69, %mm3                ## encoding: [0x0f,0xf2,0x1c,0x25,0x45,0x00,0x00,0x00]

instead of like this:
	pslld	69, %mm3                ## encoding: [0x0f,0xf2,0x1c,0x25,0x45,0000,0000,0000]

this only affects 0.

llvm-svn: 95441

llvm-svn: 95440

Weird code sometimes uses pointer constants other than null. This patch
teaches SimplifyCFG to build switch instructions in those cases.

Code like this:

void f(const char *x) {
  if (!x)
    puts("null");
  else if ((uintptr_t)x == 1)
    puts("one");
  else if (x == (char*)2 || x == (char*)3)
    puts("two");
  else if ((intptr_t)x == 4)
    puts("four");
  else
    puts(x);
}

Now becomes a switch:

define void @f(i8* %x) nounwind ssp {
entry:
  %magicptr23 = ptrtoint i8* %x to i64            ; <i64> [#uses=1]
  switch i64 %magicptr23, label %if.else16 [
    i64 0, label %if.then
    i64 1, label %if.then2
    i64 2, label %if.then9
    i64 3, label %if.then9
    i64 4, label %if.then14
  ]

Note that LLVM's own DenseMap uses magic pointers.

llvm-svn: 95439

llvm-svn: 95438

llvm-svn: 95437

llvm-svn: 95435

pseudo instructions.

llvm-svn: 95433

llvm-svn: 95432

lower the SETB* instructions.

llvm-svn: 95431

xform it is checking to actually pass.  There is no need to match
m_SelectCst<0, -1> since instcombine canonicalizes that into not(sext).

Add matches for sext(not(x)) in addition to not(sext(x)).

llvm-svn: 95420

llvm-svn: 95414

llvm-svn: 95410

container data. This prevents it from holding onto dangling
pointers and potentially behaving unpredictably.

llvm-svn: 95409

llvm-svn: 95408

malloc caller in a profile.

llvm-svn: 95407

TSFlags directly instead of a TargetInstrDesc.

llvm-svn: 95405

llvm-svn: 95403

that in mind.

llvm-svn: 95402

llvm-svn: 95397

llc.cpp also defined these flags, meaning that when I linked all of LLVM's
libraries into a single shared library, llc crashed on startup with duplicate
flag definitions.  This patch passes them through the EngineBuilder into
JIT::selectTarget().

llvm-svn: 95390

llvm-svn: 95378

llvm-svn: 95368

llvm-svn: 95351

to start limping.

llvm-svn: 95350

	pushl	%ebp
	movl	%esp, %ebp
	movl	$42, %eax
	popl	%ebp
	ret

llvm-svn: 95344