oota-llvm.git
10 years agoRevert r205551, "Attempt to XFAIL this on mingw and cygwin hosts." It didn't fail...
NAKAMURA Takumi [Thu, 3 Apr 2014 20:08:02 +0000 (20:08 +0000)]
Revert r205551, "Attempt to XFAIL this on mingw and cygwin hosts." It didn't fail on cygming.

That said, it emits errors to the stderr (with exit(0));

  error: failed to compute relocation: IMAGE_REL_I386_SECREL
  error: failed to compute relocation: IMAGE_REL_I386_SECREL
  error: failed to compute relocation: IMAGE_REL_I386_SECREL
  error: failed to compute relocation: IMAGE_REL_I386_SECREL
  error: failed to compute relocation: IMAGE_REL_I386_SECREL
  error: failed to compute relocation: IMAGE_REL_I386_DIR32
  error: failed to compute relocation: IMAGE_REL_I386_SECREL
  error: failed to compute relocation: IMAGE_REL_I386_DIR32
  error: failed to compute relocation: IMAGE_REL_I386_SECREL
  error: failed to compute relocation: IMAGE_REL_I386_SECREL
  error: failed to compute relocation: IMAGE_REL_I386_DIR32

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205560 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agollvm/test/CodeGen/X86/peephole-multiple-folds.ll: Relax expressions to satisfy win32.
NAKAMURA Takumi [Thu, 3 Apr 2014 20:07:51 +0000 (20:07 +0000)]
llvm/test/CodeGen/X86/peephole-multiple-folds.ll: Relax expressions to satisfy win32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205559 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAttempt to XFAIL this on mingw and cygwin hosts. The line table on
Eric Christopher [Thu, 3 Apr 2014 18:23:52 +0000 (18:23 +0000)]
Attempt to XFAIL this on mingw and cygwin hosts. The line table on
these is very much off and is more than just the branch
from this bug incorrect:

Address            Line   Column File   ISA Discriminator Flags
------------------ ------ ------ ------ --- ------------- -------------
0x30830a0100000002      3      0      1   0             0  is_stmt
0x30830a0100000008      3      0      1   0             0  is_stmt end_sequence

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205551 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix PR19270 - type mismatch caused by invalid optimization.
Eli Bendersky [Thu, 3 Apr 2014 17:51:58 +0000 (17:51 +0000)]
Fix PR19270 - type mismatch caused by invalid optimization.

Patch by Jingyue Wu.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205547 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoLoosen up check so that we can pass on platforms that generate
Eric Christopher [Thu, 3 Apr 2014 17:40:08 +0000 (17:40 +0000)]
Loosen up check so that we can pass on platforms that generate
slightly more verbose than needed line tables, e.g.:

Address            Line   Column File   ISA Discriminator Flags
------------------ ------ ------ ------ --- ------------- -------------
0x0000000000000000      1      0      1   0             0  is_stmt
0x0000000000000000      1      0      1   0             0  is_stmt prologue_end
0x0000000000000010      2      0      1   0             0  is_stmt
0x0000000000000018      4      0      1   0             0  is_stmt

these should probably be looked at, but it isn't affecting the correctness
of the testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205546 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: update even more tests
Saleem Abdulrasool [Thu, 3 Apr 2014 17:35:22 +0000 (17:35 +0000)]
ARM: update even more tests

More updating of tests to be explicit about the target triple rather than
relying on the default target triple supporting ARM mode.

Indicate to lit that object emission is not yet available for Windows on ARM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205545 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoArrayRef: use std::vector::data() now that we are building in C++11 mode
Dmitri Gribenko [Thu, 3 Apr 2014 16:29:11 +0000 (16:29 +0000)]
ArrayRef: use std::vector::data() now that we are building in C++11 mode

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205542 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: fixup more tests to specify the target more explicitly
Saleem Abdulrasool [Thu, 3 Apr 2014 16:01:44 +0000 (16:01 +0000)]
ARM: fixup more tests to specify the target more explicitly

This changes the tests that were targeting ARM EABI to explicitly specify the
environment rather than relying on the default.  This breaks with the new
Windows on ARM support when running the tests on Windows where the default
environment is no longer EABI.

Take the opportunity to avoid a pointless redirect (helps when trying to debug
with providing a command line invocation which can be copy and pasted) and
removing a few greps in favour of FileCheck.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205541 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: tell LLVM about zext properties of ldrexb/ldrexh
Tim Northover [Thu, 3 Apr 2014 15:10:35 +0000 (15:10 +0000)]
ARM: tell LLVM about zext properties of ldrexb/ldrexh

Implementing this via ComputeMaskedBits has two advantages:
  + It actually works. DAGISel doesn't deal with the chains properly
    in the previous pattern-based solution, so they never trigger.
  + The information can be used in other DAG combines, as well as the
    trivial "get rid of truncs". For example if the trunc is in a
    different basic block.

rdar://problem/16227836

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205540 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Add negative tests confirm that supported ISA's don't allow instructions added...
Daniel Sanders [Thu, 3 Apr 2014 14:14:22 +0000 (14:14 +0000)]
[mips] Add negative tests confirm that supported ISA's don't allow instructions added in later ISA's

Summary:
test/MC/Mips/<isa1>/invalid-<isa2>.s
    Test that <isa1> does not support <isa2>'s instructions.
test/MC/Mips/<isa1>/invalid-<isa2>-xfail.s
    Things that should be invalid but currently aren't. Will XPASS if any
    become invalid.

Reviewers: matheusalmeida

Reviewed By: matheusalmeida

Differential Revision: http://llvm-reviews.chandlerc.com/D3262

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205538 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Implement ehb, ssnop, and pause in assembler
Daniel Sanders [Thu, 3 Apr 2014 13:21:51 +0000 (13:21 +0000)]
[mips] Implement ehb, ssnop, and pause in assembler

Summary: Add negative tests for pause

Reviewers: matheusalmeida

Reviewed By: matheusalmeida

Differential Revision: http://llvm-reviews.chandlerc.com/D3246

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205537 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: skip cmpxchg failure barrier if ordering is monotonic.
Tim Northover [Thu, 3 Apr 2014 13:06:54 +0000 (13:06 +0000)]
ARM: skip cmpxchg failure barrier if ordering is monotonic.

The terminal barrier of a cmpxchg expansion will be either Acquire or
SequentiallyConsistent. In either case it can be skipped if the
operation has Monotonic requirements on failure.

rdar://problem/15996804

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205535 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoImplementation of 16-bit microMIPS instructions MFHI and MFLO.
Zoran Jovanovic [Thu, 3 Apr 2014 12:47:34 +0000 (12:47 +0000)]
Implementation of 16-bit microMIPS instructions MFHI and MFLO.
Differential Revision: http://llvm-reviews.chandlerc.com/D3141

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205532 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Add initial (experimental) MIPS-IV support.
Daniel Sanders [Thu, 3 Apr 2014 12:13:36 +0000 (12:13 +0000)]
[mips] Add initial (experimental) MIPS-IV support.

Summary:
Adds the 'mips4' processor and a simple test of the ELF e_flags.

Patch by David Chisnall
His work was sponsored by: DARPA, AFRL

I made one small change to the testcase so that it uses
mips64-unknown-linux instead of mips4-unknown-linux.

This patch indirectly adds FeatureCondMov to FeatureMips64. This is ok
because it's supposed to be there anyway and it turns out that
FeatureCondMov is not a predicate of any instructions at the moment
(this is a bug that hasn't been noticed because there are no targets
without the conditional move instructions yet).

CC: theraven
Differential Revision: http://llvm-reviews.chandlerc.com/D3244

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205530 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix for PR 19261:
Eric Christopher [Thu, 3 Apr 2014 12:11:51 +0000 (12:11 +0000)]
Fix for PR 19261:

llc doesn't generate nodes for unconditional fall-through branches for targets
without FastISel implementation (X86 has it, but can be disabled by
"-fast-isel=false") in SelectionDAGBuilder::visitBr().

So for line 4 in the following testcase

1: void foo(int i){
2:   switch(i){
3:   default:
4:     break;
5:   }
6:   return;
7: }

there is no corresponding line in .debug_line section, and a debugger
cannot set a breakpoint at line 4.

Fix this by always emitting a branch when we're not optimizing and add a
testcase to ensure that there's code on every line we'd want to break.

Patch by Daniil Fukalov.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205529 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoMicroMIPS specific little endian fixup data byte ordering.
Zoran Jovanovic [Thu, 3 Apr 2014 12:01:01 +0000 (12:01 +0000)]
MicroMIPS specific little endian fixup data byte ordering.
Differential Revision: http://llvm-reviews.chandlerc.com/D3245

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205528 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: expand atomic ldrex/strex loops in IR
Tim Northover [Thu, 3 Apr 2014 11:44:58 +0000 (11:44 +0000)]
ARM: expand atomic ldrex/strex loops in IR

The previous situation where ATOMIC_LOAD_WHATEVER nodes were expanded
at MachineInstr emission time had grown to be extremely large and
involved, to account for the subtly different code needed for the
various flavours (8/16/32/64 bit, cmpxchg/add/minmax).

Moving this transformation into the IR clears up the code
substantially, and makes future optimisations much easier:

1. an atomicrmw followed by using the *new* value can be more
   efficient. As an IR pass, simple CSE could handle this
   efficiently.
2. Making use of cmpxchg success/failure orderings only has to be done
   in one (simpler) place.
3. The common "cmpxchg; did we store?" idiom can be exposed to
   optimisation.

I intend to gradually improve this situation within the ARM backend
and make sure there are no hidden issues before moving the code out
into CodeGen to be shared with (at least ARM64/AArch64, though I think
PPC & Mips could benefit too).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205525 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoPR19320:
Stepan Dyatkovskiy [Thu, 3 Apr 2014 11:29:15 +0000 (11:29 +0000)]
PR19320:
The trouble as in ARMAsmParser, in ParseInstruction method. It assumes that ARM::R12 + 1 == ARM::SP.
It is wrong, since ARM::<Register> codes are generated by tablegen and actually could be any random numbers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205524 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[ARM] When generating a vpaddl node the input lane type is not always the type of the
Silviu Baranga [Thu, 3 Apr 2014 10:44:27 +0000 (10:44 +0000)]
[ARM] When generating a vpaddl node the input lane type is not always the type of the
add operation since extract_vector_elt can perform an extend operation. Get the input lane
type from the vector on which we're performing the vpaddl operation on and extend or
truncate it to the output type of the original add node.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205523 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Extend MipsMCExpr class to handle %higher(sym1 - sym2 + const) and
Sasa Stankovic [Thu, 3 Apr 2014 10:37:45 +0000 (10:37 +0000)]
[mips] Extend MipsMCExpr class to handle %higher(sym1 - sym2 + const) and
%highest(sym1 - sym2 + const) relocations. Remove "ABS_" from VK_Mips_HI
and VK_Mips_LO enums in MipsMCExpr, to be consistent with VK_Mips_HIGHER
and VK_Mips_HIGHEST.

This change also deletes test file test/MC/Mips/higher_highest.ll and moves
its CHECK's to the new test file test/MC/Mips/higher-highest-addressing.s.
The deleted file tests that R_MIPS_HIGHER and R_MIPS_HIGHEST relocations are
emitted in the .o file. Since it uses -force-mips-long-branch option, it was
created when MipsLongBranch's implementation was emitting R_MIPS_HIGHER and
R_MIPS_HIGHEST relocations in the .o file. It was disabled when MipsLongBranch
started to directly calculate offsets.

Differential Revision: http://llvm-reviews.chandlerc.com/D3230

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205522 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: add regression test for r205519.
Tim Northover [Thu, 3 Apr 2014 09:36:05 +0000 (09:36 +0000)]
ARM64: add regression test for r205519.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205520 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: always use i64 for the RHS of shift operations
Tim Northover [Thu, 3 Apr 2014 09:26:16 +0000 (09:26 +0000)]
ARM64: always use i64 for the RHS of shift operations

Switching between i32 and i64 based on the LHS type is a good idea in
theory, but pre-legalisation uses i64 regardless of our choice,
leading to potential ISel errors.

Should fix PR19294.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205519 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: Use __STACK_LIMIT symbol for segmented stacks
Oliver Stannard [Thu, 3 Apr 2014 08:45:16 +0000 (08:45 +0000)]
ARM: Use __STACK_LIMIT symbol for segmented stacks

We cannot use STACK_LIMIT, as it is not reserved for the compiler
by the C spec.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205516 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoStack map docs. Remove some stray markup.
Andrew Trick [Thu, 3 Apr 2014 07:08:21 +0000 (07:08 +0000)]
Stack map docs. Remove some stray markup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205515 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: don't generate __sincos_stret calls unless on MachO
Tim Northover [Thu, 3 Apr 2014 07:06:13 +0000 (07:06 +0000)]
ARM64: don't generate __sincos_stret calls unless on MachO

This should fix PR19314.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205514 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoMinor update to the stack map documentation.
Andrew Trick [Thu, 3 Apr 2014 07:03:28 +0000 (07:03 +0000)]
Minor update to the stack map documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205513 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoDebugInfo: Use a 64 bit type for the subrange
David Blaikie [Thu, 3 Apr 2014 06:28:20 +0000 (06:28 +0000)]
DebugInfo: Use a 64 bit type for the subrange

While we were encoding 64 bit values (data8) in the subrange itself,
using a 32 bit type for the subrange was still confusing the gdb. Oh,
and make it unsigned too.

As the comment points out, this could be pushed into the frontend so
that it would be 32 or 64 bit as appropriate, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205512 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[CodeGen] Fix peephole optimizer bug introduced in r205481. Fixes PR19318.
Lang Hames [Thu, 3 Apr 2014 05:03:20 +0000 (05:03 +0000)]
[CodeGen] Fix peephole optimizer bug introduced in r205481. Fixes PR19318.

I should have read that comment a little more carefully. ;)

Regression test in the works, committing in the mean time to un-break people.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205511 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoHandle getting UnknownAddressOrSize or section_end().
Rafael Espindola [Thu, 3 Apr 2014 03:57:03 +0000 (03:57 +0000)]
Handle getting UnknownAddressOrSize or section_end().

These should probably be error conditions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205509 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoImplement get getSymbolFileOffset with getSymbolAddress.
Rafael Espindola [Thu, 3 Apr 2014 03:13:33 +0000 (03:13 +0000)]
Implement get getSymbolFileOffset with getSymbolAddress.

This has the following advantages:
* Less code.
* The old ELF implementation was wrong for non-relocatable objects.
* The old ELF implementation (and I think MachO) was wrong for thumb.

No current testcase since this is only used from MCJIT and it only uses
relocatable objects and I don't think it supports thumb yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205508 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRemove getSymbolValue.
Rafael Espindola [Thu, 3 Apr 2014 02:32:47 +0000 (02:32 +0000)]
Remove getSymbolValue.

All existing users explicitly ask for an address or a file offset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205503 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd support for the R_ARM_ABS32 relocation.
Rafael Espindola [Thu, 3 Apr 2014 02:27:00 +0000 (02:27 +0000)]
Add support for the R_ARM_ABS32 relocation.

This should bring the arm buildbots back.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205502 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoOnly clear the thumb bit from function addresses.
Rafael Espindola [Thu, 3 Apr 2014 02:20:43 +0000 (02:20 +0000)]
Only clear the thumb bit from function addresses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205500 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoSimplify ELFObjectFile<ELFT>::getSymbolAddress.
Rafael Espindola [Thu, 3 Apr 2014 01:51:15 +0000 (01:51 +0000)]
Simplify ELFObjectFile<ELFT>::getSymbolAddress.

In particular, we only need to fetch the section if this is a relocatable
object.

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205499 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRevert "[Constant Hoisting] Lazily compute the idom and cache the result."
Juergen Ributzka [Thu, 3 Apr 2014 01:38:47 +0000 (01:38 +0000)]
Revert "[Constant Hoisting] Lazily compute the idom and cache the result."

This code is no longer usefull, because we only compute and use the
IDom once. There is no benefit in caching it anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205498 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAccount for scalarization costs in BasicTTI::getMemoryOpCost for extending vector...
Hal Finkel [Thu, 3 Apr 2014 00:53:59 +0000 (00:53 +0000)]
Account for scalarization costs in BasicTTI::getMemoryOpCost for extending vector loads

When a vector type legalizes to a larger vector type, and the target does not
support the associated extending load (or truncating store), then legalization
will scalarize the load (or store) resulting in an associated scalarization
cost.  BasicTTI::getMemoryOpCost needs to account for this.

Between this, and r205487, PowerPC on the P7 with VSX enabled shows:

MultiSource/Benchmarks/PAQ8p/paq8p: 43% speedup
SingleSource/Benchmarks/BenchmarkGame/puzzle: 51% speedup
SingleSource/UnitTests/Vectorizer/gcc-loops 28% speedup

(some of these are new; some of these, such as PAQ8p, just reverse regressions
that VSX support would trigger)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205495 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRevert "Fix a nomenclature error in llvm-nm."
Rafael Espindola [Thu, 3 Apr 2014 00:19:35 +0000 (00:19 +0000)]
Revert "Fix a nomenclature error in llvm-nm."

This reverts commit r205479.

It turns out that nm does use addresses, it is just that every reasonable
relocatable ELF object has sections with address 0. I have no idea if those
exist in reality, but it at least it shows that llvm-nm should use the name
address.

The added test was includes an unusual .o file with non 0 section addresses. I
created it by hacking ELFObjectWriter.cpp.

Really sorry for the churn.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205493 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix test case.
Richard Trieu [Thu, 3 Apr 2014 00:14:18 +0000 (00:14 +0000)]
Fix test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205492 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[X86] As per suggestion from Craig Topper and Hal Finkel, override
Lang Hames [Wed, 2 Apr 2014 23:57:49 +0000 (23:57 +0000)]
[X86] As per suggestion from Craig Topper and Hal Finkel, override
TargetInstrInfo::findCommutedOpIndices to enable VFMA*231 commutation, rather
than abusing commuteInstruction.

Thanks very much for the suggestion guys!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205489 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix multi-register costs in BasicTTI::getCastInstrCost
Hal Finkel [Wed, 2 Apr 2014 23:18:54 +0000 (23:18 +0000)]
Fix multi-register costs in BasicTTI::getCastInstrCost

For an cast (extension, etc.), the currently logic predicts a low cost if the
associated operation (keyed on the destination type) is legal (or promoted).
This is not true when the number of values required to legalize the type is
changing. For example, <8 x i16> being sign extended by <8 x i32> is not
generically cheap on PPC with VSX, even though sign extension to v4i32 is
legal, because two output v4i32 values are required compared to the single
v8i16 input value, and without custom logic in the target, this conversion will
scalarize.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205487 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd test case for [Constant Hoisting] Erase dead cast instructions (r204538).
Juergen Ributzka [Wed, 2 Apr 2014 23:06:22 +0000 (23:06 +0000)]
Add test case for [Constant Hoisting] Erase dead cast instructions (r204538).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205484 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM Linux support
Renato Golin [Wed, 2 Apr 2014 23:03:28 +0000 (23:03 +0000)]
ARM Linux support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205483 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[CodeGen] Teach the peephole optimizer to remember (and exploit) all folding
Lang Hames [Wed, 2 Apr 2014 22:59:58 +0000 (22:59 +0000)]
[CodeGen] Teach the peephole optimizer to remember (and exploit) all folding
opportunities in the current basic block, rather than just the last one seen.

<rdar://problem/16478629>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205481 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix a nomenclature error in llvm-nm.
Rafael Espindola [Wed, 2 Apr 2014 22:52:46 +0000 (22:52 +0000)]
Fix a nomenclature error in llvm-nm.

What llvm-nm prints depends on the file format. On ELF for example, if the
file is relocatable, it prints offsets. If it is not, it prints addresses.
Since it doesn't really need to care what it is that it is printing, use the
generic term value.

Fix or implement getSymbolValue to keep llvm-nm working.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205479 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd ability to disable building LLVM utils
Pete Cooper [Wed, 2 Apr 2014 22:49:58 +0000 (22:49 +0000)]
Add ability to disable building LLVM utils

Patch by Chris Bieneman

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205478 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[PowerPC] Make PPCTTI::getMemoryOpCost call BasicTTI::getMemoryOpCost
Hal Finkel [Wed, 2 Apr 2014 22:43:49 +0000 (22:43 +0000)]
[PowerPC] Make PPCTTI::getMemoryOpCost call BasicTTI::getMemoryOpCost

PPCTTI::getMemoryOpCost will now make use of BasicTTI::getMemoryOpCost to
calculate the base cost of the memory access, and then adjust on top of that.
There is no functionality change from this modification, but it will become
important so that PPCTTI can take advantage of scalarization information for which
BasicTTI::getMemoryOpCost will account in the near future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205476 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd comments and test case for [DAG] Keep the opaque constant flag when performing...
Juergen Ributzka [Wed, 2 Apr 2014 22:21:01 +0000 (22:21 +0000)]
Add comments and test case for [DAG] Keep the opaque constant flag when performing unary constant folding operations (r204737).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205474 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agotypo
Adrian Prantl [Wed, 2 Apr 2014 22:17:30 +0000 (22:17 +0000)]
typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205473 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[X86] Make the VFMA*231 variants commutable and relax the alignment restrictions
Lang Hames [Wed, 2 Apr 2014 22:06:16 +0000 (22:06 +0000)]
[X86] Make the VFMA*231 variants commutable and relax the alignment restrictions
on FMA3 memory operands. FMA3 instructions are VEX encoded, so they can load
from unaligned memory.

Testcase to follow, along with related patch.

<rdar://problem/16478629>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205472 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRevert "Reapply "LTO: add API to set strategy for -internalize""
Duncan P. N. Exon Smith [Wed, 2 Apr 2014 22:05:57 +0000 (22:05 +0000)]
Revert "Reapply "LTO: add API to set strategy for -internalize""

This reverts commit r199244.

Conflicts:
include/llvm-c/lto.h
include/llvm/LTO/LTOCodeGenerator.h
lib/LTO/LTOCodeGenerator.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205471 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd comments and test case for [X86TTI] Make constant base pointers for GetElementPtr...
Juergen Ributzka [Wed, 2 Apr 2014 21:45:36 +0000 (21:45 +0000)]
Add comments and test case for [X86TTI] Make constant base pointers for GetElementPtr opaque (r204739).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205468 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: fixup tests to specify the target more explicitly
Saleem Abdulrasool [Wed, 2 Apr 2014 21:22:03 +0000 (21:22 +0000)]
ARM: fixup tests to specify the target more explicitly

This changes the tests that were targeting ARM EABI to explicitly specify the
environment rather than relying on the default.  This breaks with the new
Windows on ARM support when running the tests on Windows where the default
environment is no longer EABI.

Take the opportunity to avoid a pointless redirect (helps when trying to debug
with providing a command line invocation which can be copy and pasted) and
removing a few greps in favour of FileCheck.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205465 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd test case for [Stackmaps][X86TTI] Fix think-o in getIntImmCost calculation (r204738).
Juergen Ributzka [Wed, 2 Apr 2014 21:15:36 +0000 (21:15 +0000)]
Add test case for [Stackmaps][X86TTI] Fix think-o in getIntImmCost calculation (r204738).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205464 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: update subtarget information for Windows on ARM
Saleem Abdulrasool [Wed, 2 Apr 2014 20:32:05 +0000 (20:32 +0000)]
ARM: update subtarget information for Windows on ARM

Update the subtarget information for Windows on ARM.  This enables using the MC
layer to target Windows on ARM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205459 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoMake a few more range-based loops use explicit types.
Jim Grosbach [Wed, 2 Apr 2014 20:21:22 +0000 (20:21 +0000)]
Make a few more range-based loops use explicit types.

No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205458 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd back an assert that was lost in the ELFObjectFile.h split.
Rafael Espindola [Wed, 2 Apr 2014 20:00:33 +0000 (20:00 +0000)]
Add back an assert that was lost in the ELFObjectFile.h split.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205456 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoTargetLibraryInfo: Disable memcpy and memset on R600
Tom Stellard [Wed, 2 Apr 2014 19:53:29 +0000 (19:53 +0000)]
TargetLibraryInfo: Disable memcpy and memset on R600

There are no implementations of these for R600.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205455 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoSimplify resolveFrameIndex() signature.
Jim Grosbach [Wed, 2 Apr 2014 19:28:18 +0000 (19:28 +0000)]
Simplify resolveFrameIndex() signature.

Just pass a MachineInstr reference rather than an MBB iterator.
Creating a MachineInstr& is the first thing every implementation did
anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205453 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: cortex-m0 doesn't support unaligned memory access.
Jim Grosbach [Wed, 2 Apr 2014 19:28:13 +0000 (19:28 +0000)]
ARM: cortex-m0 doesn't support unaligned memory access.

Unlike other v6+ processors, cortex-m0 never supports unaligned accesses.
From the v6m ARM ARM:

"A3.2 Alignment support: ARMv6-M always generates a fault when an unaligned
access occurs."

rdar://16491560

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205452 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoMake some range based loop types more explicit.
Jim Grosbach [Wed, 2 Apr 2014 19:28:08 +0000 (19:28 +0000)]
Make some range based loop types more explicit.

No functional change, but more readable code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205451 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Add more Octeon cnMips instructions
Kai Nacke [Wed, 2 Apr 2014 18:40:43 +0000 (18:40 +0000)]
[mips] Add more Octeon cnMips instructions

Adds the instructions ext/ext32/cins/cins32.
It also changes pop/dpop to accept the two operand version and
adds a simple pattern to generate baddu.
Tests for the two operand versions (including baddu/dmul/dpop/pop)
and the code generation pattern for baddu are included.

Reviewed by: Daniel.Sanders@imgtec.com

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205449 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[C++11,ARM64] Range based for and explicit 'override' in STP cleanup.
Jim Grosbach [Wed, 2 Apr 2014 18:00:59 +0000 (18:00 +0000)]
[C++11,ARM64] Range based for and explicit 'override' in STP cleanup.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205446 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[C++11,ARM64] Range based for loops in constant promotion.
Jim Grosbach [Wed, 2 Apr 2014 18:00:56 +0000 (18:00 +0000)]
[C++11,ARM64] Range based for loops in constant promotion.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205445 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[C++11,ARM64] Range based for loops in load/store pair optimizer.
Jim Grosbach [Wed, 2 Apr 2014 18:00:53 +0000 (18:00 +0000)]
[C++11,ARM64] Range based for loops in load/store pair optimizer.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205444 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[C++11,ARM64] Range based for loops in target lowering.
Jim Grosbach [Wed, 2 Apr 2014 18:00:51 +0000 (18:00 +0000)]
[C++11,ARM64] Range based for loops in target lowering.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205443 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[C++11,ARM64] Range based for loops in frame lowering.
Jim Grosbach [Wed, 2 Apr 2014 18:00:49 +0000 (18:00 +0000)]
[C++11,ARM64] Range based for loops in frame lowering.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205442 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[C++11,ARM64] Range based for loops in pseudo expansion.
Jim Grosbach [Wed, 2 Apr 2014 18:00:46 +0000 (18:00 +0000)]
[C++11,ARM64] Range based for loops in pseudo expansion.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205441 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[C++11,ARM64] Range based for loops for LOH
Jim Grosbach [Wed, 2 Apr 2014 18:00:44 +0000 (18:00 +0000)]
[C++11,ARM64] Range based for loops for LOH

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205440 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[C++11,ARM64] Range based for loops TLS cleanup.
Jim Grosbach [Wed, 2 Apr 2014 18:00:41 +0000 (18:00 +0000)]
[C++11,ARM64] Range based for loops TLS cleanup.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205439 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[C++11,ARM64] Range based for loops in branch relaxation.
Jim Grosbach [Wed, 2 Apr 2014 18:00:39 +0000 (18:00 +0000)]
[C++11,ARM64] Range based for loops in branch relaxation.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205438 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[C++11,ARM64] Range based for loops in address type promotion.
Jim Grosbach [Wed, 2 Apr 2014 18:00:36 +0000 (18:00 +0000)]
[C++11,ARM64] Range based for loops in address type promotion.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205437 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[ARM64][CollectLOH] Remove the link to the radar from the comments.
Quentin Colombet [Wed, 2 Apr 2014 16:40:49 +0000 (16:40 +0000)]
[ARM64][CollectLOH] Remove the link to the radar from the comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205435 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[yaml2obj][ELF] Convert some static functions into class members to
Simon Atanasyan [Wed, 2 Apr 2014 16:34:54 +0000 (16:34 +0000)]
[yaml2obj][ELF] Convert some static functions into class members to
reduce number of arguments.

No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205434 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[yaml2obj][ELF] Remove unused typedef.
Simon Atanasyan [Wed, 2 Apr 2014 16:34:48 +0000 (16:34 +0000)]
[yaml2obj][ELF] Remove unused typedef.

No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205433 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[yaml2obj][ELF] Move section index to the ELFState class.
Simon Atanasyan [Wed, 2 Apr 2014 16:34:40 +0000 (16:34 +0000)]
[yaml2obj][ELF] Move section index to the ELFState class.

No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205432 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[yaml2obj][ELF] Remove relationship between ELFState
Simon Atanasyan [Wed, 2 Apr 2014 16:34:34 +0000 (16:34 +0000)]
[yaml2obj][ELF] Remove relationship between ELFState
and ContiguousBlobAccumulator classes. Pass ContiguousBlobAccumulator to
the handleSymtabSectionHeader function directly.

No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205431 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: Add support for segmented stacks
Oliver Stannard [Wed, 2 Apr 2014 16:10:33 +0000 (16:10 +0000)]
ARM: Add support for segmented stacks

Patch by Alex Crichton, ILyoan, Luqman Aden and Svetoslav.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205430 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoclarify comment
Adrian Prantl [Wed, 2 Apr 2014 15:49:45 +0000 (15:49 +0000)]
clarify comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205429 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agofix a comment to use ASCII aprostrophes.
Adrian Prantl [Wed, 2 Apr 2014 15:49:37 +0000 (15:49 +0000)]
fix a comment to use ASCII aprostrophes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205428 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: use GOT for weak symbols & PIC.
Tim Northover [Wed, 2 Apr 2014 14:39:11 +0000 (14:39 +0000)]
ARM64: use GOT for weak symbols & PIC.

Weak symbols cannot use the small code model's usual ADRP sequences since the
instruction simply may not be able to encode a value of 0.

This redirects them to use the GOT, which hopefully linkers are able to cope
with even in the static relocation model.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205426 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: fix lowering of fp128 fptosi/fptoui
Tim Northover [Wed, 2 Apr 2014 14:39:07 +0000 (14:39 +0000)]
ARM64: fix lowering of fp128 fptosi/fptoui

We were creating libcall nodes that returned an MVT::f128, when these
particular operations actually return an int of some stripe.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205425 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoSLPVectorizer: compare entire intrinsic for SLP compatibility.
Tim Northover [Wed, 2 Apr 2014 14:39:02 +0000 (14:39 +0000)]
SLPVectorizer: compare entire intrinsic for SLP compatibility.

Some Intrinsics are overloaded to the extent that return type equality (all
that's been checked up to now) does not guarantee that the arguments are the
same. In these cases SLP vectorizer should not recurse into the operands, which
can be achieved by comparing them as "Function *" rather than simply the ID.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205424 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: make sure first argument to INSERT_SUBVECTOR has right type.
Tim Northover [Wed, 2 Apr 2014 14:38:58 +0000 (14:38 +0000)]
ARM64: make sure first argument to INSERT_SUBVECTOR has right type.

Again, coalescing and other optimisations swiftly made the MachineInstrs
consistent again, but when compiled at -O0 a bad INSERT_SUBREGISTER was
produced.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205423 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: convert fp16 narrowing ISel to pseudo-instruction
Tim Northover [Wed, 2 Apr 2014 14:38:54 +0000 (14:38 +0000)]
ARM64: convert fp16 narrowing ISel to pseudo-instruction

The previous attempt was fine with optimisations, but was actually rather
cavalier with its types. When compiled at -O0, it produced invalid COPY
MachineInstrs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205422 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoMark FPB as a reserved register when needed.
Job Noorman [Wed, 2 Apr 2014 13:13:56 +0000 (13:13 +0000)]
Mark FPB as a reserved register when needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205421 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoWork around gold bug http://sourceware.org/PR16794.
Rafael Espindola [Wed, 2 Apr 2014 12:15:20 +0000 (12:15 +0000)]
Work around gold bug sourceware.org/PR16794.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205416 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRemove duplicated DMB instructions
Renato Golin [Wed, 2 Apr 2014 09:03:43 +0000 (09:03 +0000)]
Remove duplicated DMB instructions

ARM specific optimiztion, finding places in ARM machine code where 2 dmbs
follow one another, and eliminating one of them.

Patch by Reinoud Elhorst.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205409 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdded isTargetWindowsMSVC(), renamed isTargetMingw() to isTargetWindowsGNU()
Yaron Keren [Wed, 2 Apr 2014 04:27:51 +0000 (04:27 +0000)]
Added isTargetWindowsMSVC(), renamed isTargetMingw() to isTargetWindowsGNU()
and isTargetCygwin() to isTargetWindowsCygwin() to be consistent with the
four Windows environments in Triple.h.

Suggestion by Saleem Abdulrasool!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205393 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[LoopVectorizer] Count dependencies of consecutive pointers as uniforms
Hal Finkel [Wed, 2 Apr 2014 02:34:49 +0000 (02:34 +0000)]
[LoopVectorizer] Count dependencies of consecutive pointers as uniforms

For the purpose of calculating the cost of the loop at various vectorization
factors, we need to count dependencies of consecutive pointers as uniforms
(which means that the VF = 1 cost is used for all overall VF values).

For example, the TSVC benchmark function s173 has:
  ...
  %3 = add nsw i64 %indvars.iv, 16000
  %arrayidx8 = getelementptr inbounds %struct.GlobalData* @global_data, i64 0, i32 0, i64 %3
  ...
and we must realize that the add will be a scalar in order to correctly deduce
it to be profitable to vectorize this on PowerPC with VSX enabled. In fact, all
dependencies of a consecutive pointer must be a scalar (uniform), and so we
simply need to add all consecutive pointers to the worklist that currently
detects collects uniforms.

Fixes PR19296.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205387 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdjust comments regarding non-relocated abbrev offset in debug_info.dwo
David Blaikie [Wed, 2 Apr 2014 02:04:51 +0000 (02:04 +0000)]
Adjust comments regarding non-relocated abbrev offset in debug_info.dwo

I'm not sure the comment in the implementation really adds a lot of
value (it's clear that we emit zero when no symbol is provided, but it
doesn't explain why we would do that). Happy to iterate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205386 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoSplit debug_loc and debug_loc.dwo emission into two separate functions
David Blaikie [Wed, 2 Apr 2014 01:50:20 +0000 (01:50 +0000)]
Split debug_loc and debug_loc.dwo emission into two separate functions

Based on code review feedback from Eric Christopher on r204697

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205385 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoDebugInfo: Introduce DebugLocList to encapsulate a list of DebugLocEntries and an...
David Blaikie [Wed, 2 Apr 2014 01:43:18 +0000 (01:43 +0000)]
DebugInfo: Introduce DebugLocList to encapsulate a list of DebugLocEntries and an MC Label to refer to them

This removes the magic-number-esque code creating/retrieving the same
label for a debug_loc entry from two places and removes the last small
piece of reusable logic from emitDebugLoc so that there will be less
duplication when refactoring it into two functions (one for debug_loc,
the other for debug_loc.dwo).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205382 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[ARM64][CollectLOH] Add some comments to explain how the LOHs
Quentin Colombet [Wed, 2 Apr 2014 01:02:28 +0000 (01:02 +0000)]
[ARM64][CollectLOH] Add some comments to explain how the LOHs
framework works (for the compiler part), since the design
document is not available.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205379 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd a doxygen comment to DebugLocEntry::Merge.
Adrian Prantl [Tue, 1 Apr 2014 23:34:45 +0000 (23:34 +0000)]
Add a doxygen comment to DebugLocEntry::Merge.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205374 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoDebugLocEntry: Actually merge the loc entry when returning true.
David Blaikie [Tue, 1 Apr 2014 23:19:23 +0000 (23:19 +0000)]
DebugLocEntry: Actually merge the loc entry when returning true.

Seems we didn't have any test coverage for merging... awesome. So I
added some - but hit an llvm-objdump bug while I was there. I'm choosing
not to shave that yak right now.

Code review feedback/bug catch by Adrian Prantl in r205360.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205373 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix accidental fallthrough in DebugLocEntry::hasSameValueOrLocation
David Blaikie [Tue, 1 Apr 2014 22:25:09 +0000 (22:25 +0000)]
Fix accidental fallthrough in DebugLocEntry::hasSameValueOrLocation

No test case (this would invoke UB by examining uninitialized members,
etc, at best - and this code is apparently untested anyway - I'm about
to fix that)

Code review feedback from Adrian Prantl on r205360.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205367 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRemove unused function DebugLocEntry::isEmpty
David Blaikie [Tue, 1 Apr 2014 22:06:18 +0000 (22:06 +0000)]
Remove unused function DebugLocEntry::isEmpty

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205365 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRefactor out the comparison of the location/value in a DebugLocEntry
David Blaikie [Tue, 1 Apr 2014 22:04:07 +0000 (22:04 +0000)]
Refactor out the comparison of the location/value in a DebugLocEntry

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205364 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd inequality operator for MachineLocation.
David Blaikie [Tue, 1 Apr 2014 21:54:52 +0000 (21:54 +0000)]
Add inequality operator for MachineLocation.

Fixes the build I broke in r205360

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205361 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoDebugInfo: Split DebugLocEntry into its own file.
David Blaikie [Tue, 1 Apr 2014 21:49:04 +0000 (21:49 +0000)]
DebugInfo: Split DebugLocEntry into its own file.

It seems big enough that it deserves its own file - but it is header
only, so there's no need for another cpp file, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205360 91177308-0d34-0410-b5e6-96231b3b80d8