llvm-svn: 103399

Based on a patch by Javier Martinez.

llvm-svn: 103391

changed dllexport code to use EmitBytes instead of EmitRawText, and changed the export option to use /EXPORT: instead of -export: on the windows platform

llvm-svn: 103377

llvm-svn: 103373

llvm-svn: 103372

when it detects undefined behavior.  llvm.trap generally codegens into some
thing really small (e.g. a 2 byte ud2 instruction on x86) and debugging this
sort of thing is "nontrivial".  For example, we now compile:

void foo() { *(int*)0 = 42; }

into:

_foo:
	pushl	%ebp
	movl	%esp, %ebp
	ud2

Some may even claim that this is a security hole, though that seems dubious
to me.  This addresses rdar://7958343 - Optimizing away null dereference 
potentially allows arbitrary code execution

llvm-svn: 103356

with a vector input and output into a shuffle vector.  This sort of 
sequence happens when the input code stores with one type and reloads
with another type and then SROA promotes to i96 integers, which make
everyone sad.

This fixes rdar://7896024

llvm-svn: 103354

llvm-svn: 103347

patch by Nathan Jeffords!

llvm-svn: 103346

ungracefully.

llvm-svn: 103334

stuff.

llvm-svn: 103333

LSRUse's Regs set after all pruning is done, rather than trying
to do it on the fly, which can produce an incomplete result.

This fixes a case where heuristic pruning was stripping all
formulae from a use, which led the solver to enter an infinite
loop.

Also, add a few asserts to diagnose this kind of situation.

llvm-svn: 103328

llvm-svn: 103327

llvm-svn: 103325

llvm-svn: 103318

and not the real problem itself, by dropping debug info for i128 values.
rdar://7958162.

llvm-svn: 103310

wider than 64 bits.

llvm-svn: 103309

llvm-svn: 103305

llvm-svn: 103304

llvm-svn: 103303

external and the item to be relocated should not have the address of the
symbol added in.

llvm-svn: 103302

llvm-svn: 103300

getConstantFP to accept the two supported long double
target types.  This was not the original intent, but
there are other places that assume this works and it's
easy enough to do.

llvm-svn: 103299

llvm-svn: 103295

whether the extract instructions are available.

rdar://7956878

llvm-svn: 103277

llvm-svn: 103276

llvm-svn: 103272

llvm-svn: 103271

llvm-svn: 103269

patch by Peter Housel!

llvm-svn: 103267

llvm-svn: 103266

llvm-svn: 103264

DebugInfoFinder and iterates over all the contents calling print.

llvm-svn: 103262

llvm-svn: 103261

as MachineSink, but it isn't constrained by MachineInstr-level details.

llvm-svn: 103257

methods, and add dump functions implemented in terms of the print.

llvm-svn: 103254

Use VLD2q32 / VST2q32 to reload / spill QQ (pair of Q) registers when stack slot is sufficiently aligned. Use VLDMD / VSTMD otherwise.

llvm-svn: 103235

Use VSTMD / VLDMD for spills and reloads of Q registers instead of VSTMQ / VLDQ. The later are aliases which ought to be eliminated but we can't because they are used for storing and loading v2f64 values.

llvm-svn: 103234

llvm-svn: 103233

instruction, rather than a location near where the new instruction
is being inserted.

llvm-svn: 103232