If the linker supports it, this will hold the CIE and FDE information in a
compact format. The implementation of the compact unwinding emission is coming
soon.

llvm-svn: 133658

llvm-svn: 133648

Specifically, gcc.c-torture/compile/pr21356.c.

llvm-svn: 133646

line with LLVM's general coding style.
No functionality change.

llvm-svn: 133645

llvm-svn: 133642

llvm-svn: 133640

Just tidy up a bit. No functional change.

llvm-svn: 133638

llvm-svn: 133636

is larger than the sum of the elements (including per-element padding).

llvm-svn: 133631

llvm-svn: 133619

that takes an ArrayRef.

llvm-svn: 133615

llvm-svn: 133614

llvm-svn: 133613

llvm-svn: 133612

representing a constant reference to ValType. Normally this is just
"const ValType &", but when ValType is a std::vector we want to use
ArrayRef as the reference type.

llvm-svn: 133611

be one with only one unconditional branch and no phis. Duplicating the phis in this case
is possible, but requeres liveness analysis or breaking edges.

llvm-svn: 133607

llvm-svn: 133599

Patch by Wei-Ren Chen

llvm-svn: 133589

llvm-svn: 133569

llvm-svn: 133567

to emit "movd" across the board to continue supporting a Darwin assembler bug.
This is the reincarnation of r133452.

llvm-svn: 133565

llvm-svn: 133561

There could be more than one DBG_VALUE instructions for variables where all of them have offset based on one register.

llvm-svn: 133560

explanation of what the EH table describes.

llvm-svn: 133559

Noticed on inspection.

llvm-svn: 133553

llvm-svn: 133536

llvm-svn: 133533

This is breaking compiler-rt and llvm-gcc builds on MacOSX when not using
the integrated assembler.

llvm-svn: 133524

Add support for sadd.with.overflow and uadd.with.overflow intrinsics to the CBackend by emitting definitions for each intrinsic that occurs in the module.

llvm-svn: 133522

llvm-svn: 133518

llvm-svn: 133514

self-hosted build failure has been fixed (r133512).

llvm-svn: 133513

because it won't work after my phi operand changes, because the incoming
blocks will no longer be Uses.

llvm-svn: 133512

1. (((x) & 0xFF00) >> 8) | (((x) & 0x00FF) << 8)
   => (bswap x) >> 16
2. ((x&0xff)<<8)|((x&0xff00)>>8)|((x&0xff000000)>>8)|((x&0x00ff0000)<<8))
   => (rotl (bswap x) 16)

This allows us to eliminate most of the def : Pat patterns for ARM rev16
revsh instructions. It catches many more cases for ARM and x86.

rdar://9609108

llvm-svn: 133503

ops.

This is a rewrite of the IV simplification algorithm used by
-disable-iv-rewrite. To avoid perturbing the default mode, I
temporarily split the driver and created SimplifyIVUsersNoRewrite. The
idea is to avoid doing opcode/pattern matching inside
IndVarSimplify. SCEV already does it. We want to optimize with the
full generality of SCEV, but optimize def-use chains top down on-demand rather
than rewriting the entire expression bottom-up. This was easy to do
for operations that SCEV can prove are identity function. So we're now
eliminating bitmasks and zero extends this way.

A result of this rewrite is that indvars -disable-iv-rewrite no longer
requires IVUsers.

llvm-svn: 133502

llvm-svn: 133499

handle functions with return type Complex long long.

llvm-svn: 133497

llvm-svn: 133496

llvm-svn: 133494

functions do not appear in the module.

llvm-svn: 133478