llvm-svn: 163882

Allow the second opcode info table to be 8, 16, or 32-bits as needed to represent additional fragments. This recovers some space on ATT X86 syntax and PowerPC which only need 40-bits instead of 48-bits. This also increases ARM to 64-bits to fully encode all of its operands.

llvm-svn: 163880

Reduce size of register name index tables by using uint16_t for all in tree targets. If more than 16-bits are needed for any out of tree targets, code will detect and use uint32_t instead.

llvm-svn: 163878

This is mostly documentation for the new machine model. It is designed
to be flexible, easy to incrementally refine for a subtarget, and
provide all the information that MachineScheduler will need.

If all goes well, I will follow up with an example of the new model in
use for ARM.

llvm-svn: 163877

llvm-svn: 163876

llvm-svn: 163875

1. Add MoveR3216
2. Correct spelling for Move32R16

Patch by Reed Kotler.

llvm-svn: 163869

The patch converts the "How to add a builder" document over to reStructuredText..

llvm-svn: 163860

umulo legalization.

Fixes PR13839

llvm-svn: 163856

closer to where they're needed.

llvm-svn: 163855

For gas compatibility.

rdar://12219394

llvm-svn: 163854

.set a, b - c + CONSTANT
d = b - c + CONSTANT

Both 'a' and 'd' should be marked as absolute symbols (N_ABS).

rdar://12219394

llvm-svn: 163853

loads and stores.

llvm-svn: 163844

mapSectionAddress() wasn't consistent.

llvm-svn: 163843

can't be used as a non-type template argument of type bool.

llvm-svn: 163840

Fix an issue in r163814.

llvm-svn: 163837

llvm-svn: 163835

llvm-svn: 163834

- Enhance the fix to PR12312 to support wider integer, such as 256-bit
  integer. If more than 1 fully evaluated vectors are found, POR them
  first followed by the final PTEST.

llvm-svn: 163832

- Find a legal vector type before casting and extracting element from it.
- As the new vector type may have more than 2 elements, build the final
  hi/lo pair by BFS pairing them from bottom to top.

llvm-svn: 163830

llvm-svn: 163827

Add a PatFrag to match X86tcret using 6 fixed registers or less. This
avoids folding loads into TCRETURNmi64 using 7 or more volatile
registers.

<rdar://problem/12282281>

llvm-svn: 163819

llvm-svn: 163817

llvm-svn: 163815

48-bit if necessary, in order to reduce the generated code size.

We have 900 cases not covered by OpcodeInfo in ATT AsmWriter and more in Intel
AsmWriter and ARM AsmWriter.

This patch reduced the clang Release build size by 50k, running on a Mac Pro.

llvm-svn: 163814

immediate operands to be copied.

Patch by Reed Kotler.

llvm-svn: 163811

The patch caused "Wrong topological sorting" assertions.

llvm-svn: 163810

This is common when storing to global variables.

llvm-svn: 163809

llvm-svn: 163808

Rename the flag which protects from escaped allocas, which may come from bugs in user code or in the compiler. Also, dont assert if the protection is not enabled.

llvm-svn: 163807

The current implementation does not allow more than 32 types to be properly handled with target lowering. This doubles the size to 64bit types and easily allows extension to more types.

llvm-svn: 163806

llvm-svn: 163805

llvm-svn: 163803

by xoring the high-bit. This fails if the source operand is a vector because we need to negate
each of the elements in the vector.

Fix rdar://12281066 PR13813.

llvm-svn: 163802

llvm-svn: 163801

Use Nick's suggestion of storing a large NULL into the GV instead of memset, which requires TargetData.

llvm-svn: 163799

Stack Coloring: We have code that checks that all of the uses of allocas
are within the lifetime zone. Sometime legitimate usages of allocas are
hoisted outside of the lifetime zone. For example, GEPS may calculate the
address of a member of an allocated struct. This commit makes sure that
we only check (abort regions or assert) for instructions that read and write
memory using stack frames directly. Notice that by allowing legitimate
usages outside the lifetime zone we also stop checking for instructions
which use derivatives of allocas. We will catch less bugs in user code
and in the compiler itself.

llvm-svn: 163791

* wrap code blocks in \code ... \endcode;
* refer to parameter names in paragraphs correctly (\arg is not what most
  people want -- it starts a new paragraph).

llvm-svn: 163790

llvm-svn: 163787

llvm-svn: 163783