Commit Graph

8754 Commits

Author SHA1 Message Date
Evan Cheng
459a7c6b6a Remove special handling of implicit_def. Fix a couple more bugs in liveintervalanalysis and coalescer handling of implicit_def.
Note, isUndef marker must be placed even on implicit_def def operand or else the scavenger will not ignore it. This is necessary because -O0 path does not use liveintervalanalysis, it treats implicit_def just like any other def.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74601 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 08:19:36 +00:00
Daniel Dunbar
d6bb283de9 Tweak MCSymbol doxyments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74599 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 07:03:41 +00:00
Daniel Dunbar
80f62d0062 Rename MCValue::isConstant to isAbsolute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74596 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 06:48:00 +00:00
Chris Lattner
a0faf7ae55 add comments, privatize interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74592 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 06:31:49 +00:00
Chris Lattner
36e74871b8 disable some ctors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74591 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 06:23:14 +00:00
Chris Lattner
14022f2a5a add some comments to MCSymbol header, make the ctor private so that only MCContext can create these.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74590 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 06:21:53 +00:00
Chris Lattner
e18e0c58dc improve comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74589 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 06:08:37 +00:00
Chris Lattner
0fd38069cb improve the APIs for creating struct and function types with no arguments/elements
to not have to create a temporary vector (in the API at least).  Patch by Jay Foad!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74584 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 04:13:31 +00:00
Evan Cheng
2578ba26e7 Handle IMPLICIT_DEF with isUndef operand marker, part 2. This patch moves the code to annotate machineoperands to LiveIntervalAnalysis. It also add markers for implicit_def that define physical registers. The rest, is just a lot of details.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74580 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 01:59:31 +00:00
Daniel Dunbar
5bcc8bd0c6 Remove unused AsmPrinter OptLevel argument, and propogate.
- This more or less amounts to a revert of r65379. I'm curious to know what
   happened that caused this variable to become unused.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74579 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 01:48:54 +00:00
Owen Anderson
db47ed0925 Add a global context, for easing backwards compatibility.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74574 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 23:39:59 +00:00
Daniel Dunbar
e303503da3 Fill in some methods for the MCValue field of an MCOperand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74572 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 23:37:44 +00:00
Daniel Dunbar
374d8bddac llvm-mc: Symbols in a relocatable expression of the (a - b + cst) form are
allowed to be undefined when the expression is seen, we cannot enforce the
same-section requirement until the entire assembly file has been seen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74565 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 22:49:27 +00:00
Bill Wendling
20c568f366 Add an "alignment" field to the MachineFunction object. It makes more sense to
have the alignment be calculated up front, and have the back-ends obey whatever
alignment is decided upon.

This allows for future work that would allow for precise no-op placement and the
like.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74564 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 22:38:32 +00:00
Andreas Bolka
f67799501c Drop redundant print impl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74553 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 21:33:56 +00:00
Dan Gohman
38a253ddf7 Reapply 74494, this time removing the conflicting definition of operator<<
in APIntTest.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74550 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 20:10:56 +00:00
Owen Anderson
72bf4473a6 Add wrappers for type construction to LLVMContext.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74542 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 17:50:28 +00:00
Owen Anderson
5217007006 Fix up header comments to make Chris happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 17:06:46 +00:00
Evan Cheng
50564ebc9e Temporarily restore the scavenger implicit_def checking code. MachineOperand isUndef mark is not being put on implicit_def of physical registers (created for parameter passing, etc.).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74519 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 09:19:42 +00:00
Evan Cheng
4784f1fc73 Add a bit IsUndef to MachineOperand. This indicates the def / use register operand is defined by an implicit_def. That means it can def / use any register and passes (e.g. register scavenger) can feel free to ignore them.
The register allocator, when it allocates a register to a virtual register defined by an implicit_def, can allocate any physical register without worrying about overlapping live ranges. It should mark all of operands of the said virtual register so later passes will do the right thing.

This is not the best solution. But it should be a lot less fragile to having the scavenger try to track what is defined by implicit_def.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74518 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 08:49:04 +00:00
Bill Wendling
527b6e6292 Temporarily revert r74494. It was causing failures in the unit tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74515 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 07:05:27 +00:00
Owen Anderson
5ec56cc438 Fix the build on Cygwin. Patch by Aaron Gray.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74510 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 05:33:46 +00:00
Daniel Dunbar
15d1707096 llvm-mc: Evaluation for relocatable expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74496 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 01:49:52 +00:00
Dan Gohman
9b27622ecb Delete a spurious blank line at the top of the file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74495 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 01:29:09 +00:00
Dan Gohman
670031666c Define an operator<< for APInt to be used with std::ostream.
This will allow it to be used in unittests that use gtest's
EXPECT_EQ.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 01:28:08 +00:00
Daniel Dunbar
3fb7683bec Normalize SourceMgr messages.
- Don't print "Parsing" in front of every message.

 - Take additional "type" argument which is prepended to the message (with ": ")
   if given.

 - Update clients to print errors (warnings) as:
<filename>:<line number>: error(warning): ...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74489 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 00:49:23 +00:00
Owen Anderson
2bc29dc0bc Add LLVMContext, which will eventually be used as a container for privatizing a lot of (currently) global state, including the
constant and type uniquing tables.  For now, just make it a wrapper around the existing APIs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74488 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 00:48:55 +00:00
Mikhail Glushenkov
583cf31973 Move the driver entry point out of Main.inc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74482 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 00:15:24 +00:00
Daniel Dunbar
c29dfa786a llvm-mc: Parse .{,b,p2}align{,w,l} directives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74478 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29 23:46:59 +00:00
Daniel Dunbar
dce0f3c556 llvm-mc: Diagnose misuse (mix) of defined symbols and labels.
- For example, we diagnose errors on:
--
a:
a = 10
--

 - For now we reject code like:
--
.long a
a = 10
--
   which "as" accepts (on Darwin).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74476 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29 23:43:14 +00:00
Daniel Dunbar
9146d0e89c Add SMLoc::isValid method.
- To support using SMLoc as a sentinel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74474 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29 23:28:55 +00:00
Daniel Dunbar
7908a6a189 Rename MCValue::getCst to getConstant and add MCValue::isConstant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74440 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29 19:51:00 +00:00
Sebastian Redl
37c286c181 Fix three MSVC 2008 warnings that completely clutter the build output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74430 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29 17:12:06 +00:00
David Greene
9b9838dbd4 Add more vector ValueTypes for AVX and other extended vector instruction
sets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74427 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29 16:47:10 +00:00
Duncan Sands
cd1267d2d6 Add triple for OpenBSD.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74422 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29 13:36:13 +00:00
Mikhail Glushenkov
95c1f5ba64 Make dynamic LLVMC plugins work on Windows (finally!).
Implemented by making lib/CompilerDriver a shared library that holds all the
global static data (CommandLine options, plugin registry) that we unfortunately
have to live with.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74417 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29 03:09:15 +00:00
Andreas Bolka
f35626d3cd Minimal LDA interface, maximally conservative tester.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74401 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-28 00:21:21 +00:00
Andreas Bolka
707207adae LDA analysis output scaffolding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74400 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-28 00:16:08 +00:00
Dan Gohman
4b35f83b91 Teach LoopSimplify how to merge multiple loop exits into a single exit,
when one of them can be converted to a trivial icmp and conditional
branch.

This addresses what is essentially a phase ordering problem.
SimplifyCFG knows how to do this transformation, but it doesn't do so
if the primary block has any instructions in it other than an icmp and
a branch. In the given testcase, the block contains other instructions,
however they are loop-invariant and can be hoisted. SimplifyCFG doesn't
have LoopInfo though, so it can't hoist them. And, it's important that
the blocks be merged before LoopRotation, as it doesn't support
multiple-exit loops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74396 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 21:30:38 +00:00
Dan Gohman
9d59d9f849 Eliminate a layer of indirection in LoopInfo and MachineLoopInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74394 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 21:22:48 +00:00
Dan Gohman
1c34375f79 Convert ScalarEvolution to use BumpPtrAllocator and FoldingSet, instead
of a team of individual allocations and a team of std::maps.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74393 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 21:21:31 +00:00
Dan Gohman
0a928335fa Remove a redundant #include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74392 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 21:18:51 +00:00
Dan Gohman
267a385342 Change SCEVExpander to use an IRBuilder to emit instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74391 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 21:18:18 +00:00
Dan Gohman
1d3b26ac02 Add a 'const' in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74389 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 20:53:16 +00:00
Dan Gohman
667d787c0a Incorporate the insertion point into the key of SCEVExpander's CSE map.
This helps it avoid reusing an instruction that doesn't dominate all
of the users, in cases where the original instruction was inserted
before all of the users were known.  This may result in redundant
expansions of sub-expressions that depend on loop-unpredictable values
in some cases, however this isn't very common, and it primarily impacts
IndVarSimplify, so GVN can be expected to clean these up.

This eliminates the need for IndVarSimplify's FixUsesBeforeDefs,
which fixes several bugs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74352 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26 22:53:46 +00:00
Devang Patel
acec7b35aa Remove unused routines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74351 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26 22:53:22 +00:00
Bob Wilson
ff0d3392e0 Add missing argument for vtbx intrinsic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74340 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26 22:27:22 +00:00
Bob Wilson
fd6d87d68a Add intrinsics for ARM NEON vtbl and vtbx operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74333 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26 21:45:05 +00:00
Chris Lattner
505e982040 fix a really subtle bug in the cross section of aliases and TLS:
the SelectionDAG::getGlobalAddress function properly looks through
aliases to determine thread-localness, but then passes the GV* down
to GlobalAddressSDNode::GlobalAddressSDNode which does not.  Instead
of passing down isTarget, just pass down the predetermined node
opcode.  This fixes some assertions with out of tree changes I'm 
working on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74325 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26 21:14:05 +00:00
Jeffrey Yasskin
d8ac1be686 Delete LoopPass::runOnFunctionBody. It was never used or implemented.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74320 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26 20:42:50 +00:00