Commit Graph

13235 Commits

Author SHA1 Message Date
Rafael Espindola
62b83b62f3 Layout one section until no relaxations are done and then move to the next
section.

This helps because in practice sections form a dag with debug sections pointing
to text sections. Finishing up the text sections first makes the debug section
relaxation trivial.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122314 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 04:22:09 +00:00
Chris Lattner
f1b4eafbfe rename MVT::Flag to MVT::Glue. "Flag" is a terrible name for
something that just glues two nodes together, even if it is
sometimes used for flags.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122310 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 02:38:05 +00:00
Jakob Stoklund Olesen
b907e8a2d4 Use IntEqClasses to compute connected components of live intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122296 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 00:48:17 +00:00
Jakob Stoklund Olesen
2a6899c539 Add ADT/IntEqClasses.h as a light-weight implementation of EquivalenceClasses.h.
This implementation already exists as ConnectedVNInfoEqClasses in
LiveInterval.cpp, and it seems to be generally useful to have a light-weight way
of forming equivalence classes of small integers.

IntEqClasses doesn't allow enumeration of the elements in a class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122293 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 00:04:46 +00:00
Owen Anderson
3b77f56194 Revert r122114 (CallbackVH observing use-list changes) because it caused severe slowdowns on the Linux self-host configuration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 22:28:03 +00:00
Bill Wendling
d7a0852464 This is still used and issuing an annoying warning. Don't deprecate something in
the library unless *all* uses have been converted over to the new form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122267 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 21:14:18 +00:00
Duncan Sands
43ff68ded0 Add a new convenience pass for testing InstructionSimplify. Previously
it could only be tested indirectly, via instcombine, gvn or some other
pass that makes use of InstructionSimplify, which means that testcases
had to be carefully contrived to dance around any other transformations
that that pass did.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122264 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 20:54:37 +00:00
Michael J. Spencer
c41f4de754 Fix spelling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122244 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 13:30:37 +00:00
Duncan Sands
0d7ce5ffa4 There is no need for isAssociative to take the type as an argument anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122242 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 13:10:23 +00:00
Duncan Sands
8e4f4390bc Discourage people from using isWeakForLinker when they should be using
mayBeOverridden.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122241 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 10:57:01 +00:00
Chris Lattner
4d8455ea4d update comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122212 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 00:56:59 +00:00
Nick Lewycky
9d38acb254 Use the new way of silencing this warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122195 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-19 20:57:14 +00:00
Nick Lewycky
476b242fe7 Add missing standard headers. Patch by Joerg Sonnenberger!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122193 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-19 20:43:38 +00:00
Chris Lattner
cc3029acdd add a version of IRBuilder::SetInsertPoint that takes an instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122180 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-19 19:16:22 +00:00
Chris Lattner
43afe75ad0 remove dead header
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122169 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-19 04:49:11 +00:00
Michael J. Spencer
c3207d8b5a Support/PathV1: Clarify deprecation warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122159 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 22:23:24 +00:00
Michael J. Spencer
7385509101 Support/PathV1: Deprecate get{Basename,Dirname,Suffix}.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122157 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 22:23:07 +00:00
Eric Christopher
9390983b08 Header warning patrol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122152 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 10:54:29 +00:00
Roman Divacky
7529b16410 Add support for lexing single quotes like 'c'.
This fixed 8615.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122150 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 08:56:37 +00:00
Owen Anderson
fffa863536 Revert r122143 through r122140, which collectively broke the LLVMC tests on
the buildbots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122149 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 07:37:18 +00:00
Rafael Espindola
3132780a2e Merge isAbsolute into IsSymbolRefDifferenceFullyResolved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122148 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 06:27:54 +00:00
Rafael Espindola
1ec5bd31fe Remove the MCObjectFormat class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122147 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 05:37:28 +00:00
Michael J. Spencer
47e8ae6324 Support/PathV1: Clarify deprecation warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122143 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 04:13:54 +00:00
Michael J. Spencer
b9c767cce5 Support/PathV1: Deprecate get{Basename,Dirname,Suffix}.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122141 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 04:13:36 +00:00
Rafael Espindola
d076482ab7 Revert 122011, 122012, 122013, 122023 adding back an important optimization.
I added a note, but suggestions on how to add a test are really welcome.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122138 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 03:57:21 +00:00
Rafael Espindola
bff66a86e6 Move some data to the TargetWriter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122134 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 03:27:34 +00:00
Michael J. Spencer
b3127bb06a Support/PathV1: Deprecate getLast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122116 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 00:19:10 +00:00
Owen Anderson
a479b23256 Add support to CallbackVH to receive notification when a Value's use-list changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122114 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 00:07:15 +00:00
Jakob Stoklund Olesen
89cab93fe9 Pass a Banner argument to the machine code verifier both from
createMachineVerifierPass and MachineFunction::verify.

The banner is printed before the machine code dump, just like the printer pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122113 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18 00:06:56 +00:00
Jakob Stoklund Olesen
8d12140437 Avoid dereferencing end() in collectInterferingVRegs() when there is no
interference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122108 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 23:16:38 +00:00
Jakob Stoklund Olesen
f428eb6c1b Enable loop splitting in RegAllocGreedy.
The heuristics split around the largest loop where the current register may be
allocated without interference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122106 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 23:16:32 +00:00
Bill Wendling
976ef86689 During local stack slot allocation, the materializeFrameBaseRegister function
may be called. If the entry block is empty, the insertion point iterator will be
the "end()" value. Calling ->getParent() on it (among others) causes problems.

Modify materializeFrameBaseRegister to take the machine basic block and insert
the frame base register at the beginning of that block. (It's very similar to
what the code does all ready. The only difference is that it will always insert
at the beginning of the entry block instead of after a previous materialization
of the frame base register. I doubt that that matters here.)

<rdar://problem/8782198>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122104 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 23:09:14 +00:00
Jakob Stoklund Olesen
d715e07efe Add more checks to IntervalMapOverlaps::advance() to ensure that advanceTo sees
monotonic keys.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122093 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 22:07:54 +00:00
Jakob Stoklund Olesen
5049ee5b11 It is allowed to call IntervalMap::const_iterator::advanceTo() with a key that
moves the iterator to end(), and it is valid to call it on end().

That means it is valid to call advanceTo() with any monotonic key sequence.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122092 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 22:07:51 +00:00
Michael J. Spencer
48c166bceb Fix 80 col.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122089 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 21:32:47 +00:00
Michael J. Spencer
965841cfe4 Support/Path: Deprecate PathV1::isAbsolute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122086 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 21:21:31 +00:00
Jakob Stoklund Olesen
4aec85ae01 Fix crash when IntervalMapOverlaps::advanceTo moves past the last overlap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122081 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 19:18:38 +00:00
Benjamin Kramer
d53f3c864b Pass StringRefs by value, for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122074 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 18:19:06 +00:00
Jakob Stoklund Olesen
090100fdb1 Add MachineLoopRange comparators for sorting loop lists by number and by area.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122073 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 18:13:52 +00:00
Rafael Espindola
6024c97ffa Stub out explicit MCELFObjectTargetWriter interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122067 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 17:45:22 +00:00
Michael J. Spencer
cc2a8fefb6 Support: Rename Path.h to PathV1.h and add a new Path.h that includes both V1 and V2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122065 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 17:22:36 +00:00
Rafael Espindola
285b3e5b61 Move createELFObjectWriter to its own header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122064 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 16:59:53 +00:00
Chris Lattner
e27db74a60 improve switch formation to handle small range
comparisons formed by comparisons.  For example,
this:

void foo(unsigned x) {
  if (x == 0 || x == 1 || x == 3 || x == 4 || x == 6) 
    bar();
}

compiles into:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	cmpl	$6, %edi
	ja	LBB0_2
## BB#1:                                ## %entry
	movl	%edi, %eax
	movl	$91, %ecx
	btq	%rax, %rcx
	jb	LBB0_3

instead of:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	cmpl	$2, %edi
	jb	LBB0_4
## BB#1:                                ## %switch.early.test
	cmpl	$6, %edi
	ja	LBB0_3
## BB#2:                                ## %switch.early.test
	movl	%edi, %eax
	movl	$88, %ecx
	btq	%rax, %rcx
	jb	LBB0_4

This catches a bunch of cases in GCC, which look like this:

 %804 = load i32* @which_alternative, align 4, !tbaa !0
 %805 = icmp ult i32 %804, 2
 %806 = icmp eq i32 %804, 3
 %or.cond121 = or i1 %805, %806
 %807 = icmp eq i32 %804, 4
 %or.cond124 = or i1 %or.cond121, %807
 br i1 %or.cond124, label %.thread, label %808

turning this into a range comparison.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122045 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 06:20:15 +00:00
Daniel Dunbar
b87422778c MC/Mach-O: On second thought, use a custom hook for enabling aggressive
IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on
enough cases for x86-32 that I would rather wait a bit on it.
 - In practice, we will want to change this eventually because it only means we
   generate less relocations (it also eliminates the need for the horrible
   '.set' hack that Darwin requires in some places).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122042 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 05:50:29 +00:00
Daniel Dunbar
1f3662abba MC/ObjectWriter: Add a new IsSymbolRefDifferenceFullyResolved target format specific hook.
- Currently just has stub implementations for Mach-O, ELF, and COFF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122037 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 04:54:54 +00:00
Jakob Stoklund Olesen
ff2e9b4225 Provide LiveIntervalUnion::Query::checkLoopInterference.
This is a three-way interval list intersection between a virtual register, a
live interval union, and a loop. It will be used to identify interference-free
loops for live range splitting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122034 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 04:09:47 +00:00
Daniel Dunbar
5d2477cecf MC/Assembler: Strip out object writer arguments, now that it is always available
-- and remove FIXME asking for the same!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122032 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 02:45:59 +00:00
Daniel Dunbar
feb7ba3d9a MC/Assembler: Make the MCObjectWriter available through the lifetime of the
assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122031 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 02:45:41 +00:00
Daniel Dunbar
7b62afac0a MC/Target: Remove HasScatteredSymbols target hook variable, which has been
superceded and was effectively dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122024 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 02:06:08 +00:00
Daniel Dunbar
8f714fedba MC/Expr: Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122023 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 02:05:45 +00:00