Commit Graph

104478 Commits

Author SHA1 Message Date
Yaron Keren
c45bee91b8 Two small enhancements for the JIT.
When JITting a large project such as Boost it's quite hard to figure out the problematic inline asm without debug location. This patch provides debug location printout before the JIT aborts due to inline asm. printDebugLoc() was exposed from MachineInstr.cpp and reused here.

If the JIT run with debug info, don't bomb on DBG_VALUE but ignore them.

http://reviews.llvm.org/D3416



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210201 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 17:35:28 +00:00
David Blaikie
024b693ca7 XFAIL: test/DebugInfo/missing-abstract-variable.ll on mips and ppc64 due to an inlined parameter that goes missing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210200 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 17:05:23 +00:00
Saleem Abdulrasool
510315c386 tools: fix parenthesis warning from GCC
Add parenthesis as suggested by GCC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210194 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 16:03:20 +00:00
Saleem Abdulrasool
fbb7c20395 tools: fix silly typo in llvm-readobj
Case insensitive case preserving file systems are not a good choice for
development.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210193 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 16:03:18 +00:00
Saleem Abdulrasool
fe3b74ec71 tools: initial implementation of WoA EH decoding
Add support to llvm-readobj to decode Windows ARM Exception Handling data.  This
uses the previously added datastructures to decode the information into a format
that can be used by tests.  This is a necessary step to add support for emitting
Windows on ARM exception handling information.

A fair amount of formatting inspiration is drawn from the Win64 EH printer as
well as the ARM EHABI printer.  This allows for a reasonably thorough look into
the encoded data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210192 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 15:47:15 +00:00
Saleem Abdulrasool
b35de82adc tools: introduce StreamWriter::printBoolean
Add a helper print method to print a boolean value as "Yes" or "No".  This is
intended to be used by the Windows ARM EH printer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210191 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 15:47:11 +00:00
Saleem Abdulrasool
0b25d84c27 Support: style/documentation cleanup for format
This is purely a documentation/whitespace cleanup for the format support
functions.

The current style does not duplicate the function/class names in the
documentation; conform to this style.

Additionally, there was a large amount of duplication of comments that added no
real value.  Use block comments for the related sets of functions which are used
for type deduction and parameter container classes.

No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210190 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 15:47:07 +00:00
Saleem Abdulrasool
bf9290fb48 Support: add additional comment for ARM EH structure
Replicate the fact that ARM::WinEH::RuntimeFunction purposefully does not merge
functions to accommodate raw data access use cases in tools such as readobj.
Pointed out by Renato during post-commit review.

No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210189 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 15:47:04 +00:00
Rafael Espindola
82db274d15 InstCombine: Improvement to check if signed addition overflows.
This patch implements two things:

1. If we know one number is positive and another is negative, we return true as
    signed addition of two opposite signed numbers will never overflow.

2. Implemented TODO : If one of the operands only has one non-zero bit, and if
    the other operand has a known-zero bit in a more significant place than it
    (not including the sign bit) the ripple may go up to and fill the zero, but
    won't change the sign. e.x -  (x & ~4) + 1

We make sure that we are ignoring 0 at MSB.

Patch by Suyog Sarda.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210186 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 15:39:14 +00:00
Tilmann Scheller
45a8d99f59 [AArch64] clang-format the load/store optimizer.
No change in functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210182 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 12:40:35 +00:00
Tilmann Scheller
b2caf9766e [AArch64] Fix some LLVM Coding Standards violations in the load/store optimizer.
Variable names should start with an upper case letter.

No change in functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210181 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 12:36:28 +00:00
Patrik Hagglund
e0e4fca46a Fix gcc -Wparentheses warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210178 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 11:21:11 +00:00
Nick Lewycky
7270890505 Fix a use of uninitialized value. OldCC is set when IsCmpZero || IsSwapped and read when ShouldUpdateCC || IsSwapped, and ShouldUpdateCC is independent. Fixes PR19932, but no test since I wasn't able to get any symptoms to appear, not even with valgrind and the testcase from the PR. It's clear what happened from inspection of the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210168 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 07:45:54 +00:00
Andrew Trick
5f22dd7858 Add a subtarget hook: enablePostMachineScheduler.
As requested by AArch64 subtargets.

Note that this will have no effect until the
AArch64 target actually enables the pass like this:
substitutePass(&PostRASchedulerID, &PostMachineSchedulerID);

As soon as armv7 switches over, PostMachineScheduler will become the
default postRA scheduler, so this won't be necessary any more.
Targets using the old postRA schedule would then do:
substitutePass(&PostMachineSchedulerID, &PostRASchedulerID);

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210167 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 07:06:27 +00:00
Andrew Trick
0c83424556 Move GenericScheduler and PostGenericScheduler into a header.
These were not exposed previously because I didn't want out-of-tree
targets to be too dependent on their internals. They can be reused for
a very wide variety of processors with casual scheduling needs without
exposing the classes by instead using hooks defined in
MachineSchedPolicy (we can add more if needed). When targets are more
aggressively tuned or want to provide custom heuristics, they can
define their own MachineSchedStrategy. I tend to think this is better
once you start customizing heuristics because you can copy over only
what you need. I don't think that layering heuristics generally works
well.

However, Arch64 targets now want to reuse the Generic scheduling logic
but also provide extensions. I don't see much harm in exposing the
Generic scheduling classes with a major caveat: these scheduling
strategies may change in the future without validating performance on
less mainstream processors. If you want to be immune from changes,
just define your own MachineSchedStrategy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210166 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 07:06:18 +00:00
Justin Bogner
e5d8481310 docs: Remove documentation for legacy PGO options
Late last year r191835 removed a largely unmaintained legacy PGO
infrastructure, but some of the docs were missed. Since these docs are
for things that don't actually exist anymore, they should be removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210165 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 06:29:38 +00:00
Simon Atanasyan
d126407627 [Object][ELF] Range-based loop simplification.
No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210164 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 05:51:44 +00:00
Alp Toker
3b3d2e2c3a GraphWriter: try gv before xdg-open
Avoid changing behaviour for everyone who's used to the traditional ghostview
UI, especially since it knows how to stay in the foreground unlike xdg-open.

Amendment to r210147.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210148 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 04:11:12 +00:00
Alp Toker
a5bd2adbc7 GraphWriter: support the XDG open utility
This runs a suitable viewer on Unix desktop environments specified by
Freedesktop.org (GNOME, KDE, Linux distributions etc.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210147 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 03:57:44 +00:00
Alp Toker
4830b9c727 config.h: fix layering and don't duplicate definitions
Also correct the llvm-config.h header guard so it doesn't depend on 'CONFIG_H'
which is commonly defined in external projects and caused trouble for
embedders.

In future llvm/Config/llvm-config.h will be installed, but not
the private llvm/Config/config.h header.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210144 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 03:21:38 +00:00
David Blaikie
5c0b13f3be DebugInfo: Partial revert r209984 due to more cases where abstract DbgVariables do not have associated DIEs.
Along with a test case to demonstrate that due to inlining order there
are cases where abstract variable DIEs are not constructed since the
abstract subprogram was built due to a previous inlining that optimized
away those variables. This produces incorrect debug info (the 'missing'
abstract variable causes the inlined instance of that variable to be
emitted with a full description (name, line, file) rather than
referencing the abstract origin), but this commit at least ensures that
it doesn't crash...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210143 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 01:30:59 +00:00
Matt Arsenault
1b68686365 Fix typos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210135 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 23:06:13 +00:00
Pete Cooper
dc6eaa4125 Calculate dead instructions when a live interval is created.
This gets us closer to being able to remove LiveVariables entirely which is where dead instructions are currently tagged as such.

Reviewed by Jakob Olesen


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210132 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 22:42:10 +00:00
Eric Christopher
957b2cc0f2 Revert r209381 as it isn't a local variable. Add a testcase so that
we know next time this happens.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210127 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 21:01:39 +00:00
Eric Christopher
79f634d783 Fixup formatting in the pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210126 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 21:01:35 +00:00
Rafael Espindola
f35a459723 Update comments to match reality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210125 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 20:25:26 +00:00
Rafael Espindola
8c2d2770e2 Fix a small bug in the parsing of anonymous globals.
It was able to parse

hidden dllexport global i32 42

but not

dllexport global i32 42

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210121 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 20:07:32 +00:00
Rafael Espindola
85422f7da3 Simplify the parsing of unnamed globals. No functionality changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210120 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 20:00:20 +00:00
Rafael Espindola
b20541c5fb Update comment. This should have been part of r210062.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210119 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 19:38:37 +00:00
Alp Toker
89f341af6d Remove some redundant doc comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210118 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 19:06:49 +00:00
Tilmann Scheller
1514ecc83a [AArch64] Fix typo in load/store optimizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210114 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 16:33:13 +00:00
Tilmann Scheller
9f039304b3 [AArch64] Add regression tests for the load/store optimizer which cover post-index update folding with sub rather than add.
The tests check that the following transform happens:

  (ldr|str) X, [x20]
   ...
  sub x20, x20, #16
   ->
  (ldr|str) X, [x20], #-16

with X being either w0, x0, s0, d0 or q0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210113 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 16:03:00 +00:00
Rafael Espindola
45178b9d60 Implement one operator== with another.
Thanks for David Blaikie for the suggestion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210107 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 15:06:22 +00:00
Evgeniy Stepanov
58a20d70fa [asan] Fix coverage instrumentation with -asan-globals=0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210103 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 14:16:00 +00:00
Tim Northover
1410a2c906 AArch64: mark small types (i1, i8, i16) as promoted
This means the output of LowerFormalArguments returns a lowered
SDValue with the correct type (expected in SelectionDAGBuilder).
Without this, an assertion under a DEBUG macro triggers when those
types are passed on the stack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210102 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 13:54:53 +00:00
Rafael Espindola
e9b2cf3456 Add operator== and operator!= to compare with nullptr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210100 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 13:26:18 +00:00
Rafael Espindola
b468431b37 Use an enum class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210078 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 05:26:12 +00:00
Rafael Espindola
18b4087194 Use an enum class.
Might also fix the windows build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210077 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 05:12:33 +00:00
Rafael Espindola
dacea252b5 Remove the last unspecified_bool_type from llvm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210076 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 05:05:15 +00:00
Rafael Espindola
7d5fe32ebf Make this operator bool() explicit to match the standard library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210073 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 04:54:15 +00:00
Rafael Espindola
08e66be96d Make this operator bool() explicit to match the standard library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210072 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 04:42:24 +00:00
Nick Lewycky
c69c42240e Ignore line numbers on debug intrinsics. Add an assert to ensure that we aren't emitting line number zero, the .gcno format uses this to indicate that the next field is a filename.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210068 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 04:25:36 +00:00
Jiangning Liu
9a2d239740 [AArch64] Correctly deal with VPR stack parameter passing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210067 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 03:25:09 +00:00
Alp Toker
1860902c45 Process::GetRandomNumber(): fix insecure RNG
This could have generated non-random output under error conditions in release
builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210065 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 03:01:03 +00:00
Rafael Espindola
2d21b25393 Allow alias to point to an arbitrary ConstantExpr.
This  patch changes GlobalAlias to point to an arbitrary ConstantExpr and it is
up to MC (or the system assembler) to decide if that expression is valid or not.

This reduces our ability to diagnose invalid uses and how early we can spot
them, but it also lets us do things like

@test5 = alias inttoptr(i32 sub (i32 ptrtoint (i32* @test2 to i32),
                                 i32 ptrtoint (i32* @bar to i32)) to i32*)

An important implication of this patch is that the notion of aliased global
doesn't exist any more. The alias has to encode the information needed to
access it in its metadata (linkage, visibility, type, etc).

Another consequence to notice is that getSection has to return a "const char *".
It could return a NullTerminatedStringRef if there was such a thing, but when
that was proposed the decision was to just uses "const char*" for that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210062 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 02:41:57 +00:00
Rafael Espindola
27bd9b361b Add back commit r210029.
The code was actually correct. Sorry for the confusion. I have expanded the
comment saying why the analysis is valid to avoid me misunderstaning it
again in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210052 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-02 22:01:04 +00:00
Rafael Espindola
376d5ef3c6 Convert test to FileCheck.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210049 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-02 21:23:54 +00:00
Rafael Espindola
2e1c072976 Revert "Add the nsw flag when we detect that an add will not signed overflow."
This reverts commit r210029.

It was not correctly handling cases where LHS and RHS had multiple but different
sign bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210048 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-02 21:12:19 +00:00
Eric Christopher
8962f1959d InitLibcallNames can take a Triple instead of a TargetMachine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210045 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-02 20:51:49 +00:00
Rafael Espindola
83223f52e7 Added support to optimize comparisons with "lshr exact" of a constant.
Patch by Rahul Jain.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210040 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-02 19:19:04 +00:00