Commit Graph

7362 Commits

Author SHA1 Message Date
Daniel Dunbar e03eecb75f Remove Value::{isName, getNameRef}.
Also, change MDString to use a StringRef.

llvm-svn: 77098
2009-07-25 23:55:21 +00:00
Chris Lattner 60f3b73e11 this is (unfortunately) several changes mixed together:
1. Spell SectionFlags::Writeable as "Writable".
2. Add predicates for deriving SectionFlags from SectionKinds.
3. Sink ELF-specific getSectionPrefixForUniqueGlobal impl into
   ELFTargetAsmInfo.
4. Fix SectionFlagsForGlobal to know that BSS/ThreadBSS has the
   BSS bit set (the real fix for PR4619).
5. Fix isSuitableForBSS to not put globals with explicit sections
   set in BSS (which was the reason #4 wasn't fixed earlier).
6. Remove my previous hack for PR4619.

llvm-svn: 77085
2009-07-25 18:57:34 +00:00
Dan Gohman 1ddf98ad8e Convert a few more things to use raw_ostream.
llvm-svn: 77039
2009-07-25 01:43:01 +00:00
Daniel Dunbar 0dd5e1ed39 More migration to raw_ostream, the water has dried up around the iostream hole.
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
   "magic" DOUT behavior which avoided calling printing functions when the
   statement was disabled. In addition to being unnecessary magic, it had the
   downside of leaving code in -Asserts builds, and of hiding potentially
   unnecessary computations.

llvm-svn: 77019
2009-07-25 00:23:56 +00:00
Owen Anderson edb4a70325 Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come.
llvm-svn: 77011
2009-07-24 23:12:02 +00:00
Jakob Stoklund Olesen 1ae0736830 Add support for promoting SETCC operations.
llvm-svn: 76987
2009-07-24 18:22:59 +00:00
Chris Lattner 71b6d6946c remove a use of SectionFlagsForGlobal.
llvm-svn: 76970
2009-07-24 16:40:09 +00:00
Daniel Dunbar f26e740c89 More move to raw_ostream.
llvm-svn: 76966
2009-07-24 10:47:20 +00:00
Daniel Dunbar 796e43eede Move more to raw_ostream, provide support for writing MachineBasicBlock,
LiveInterval, etc to raw_ostream.

llvm-svn: 76965
2009-07-24 10:36:58 +00:00
Daniel Dunbar 8ef0735dd5 Move to raw_ostream.
llvm-svn: 76963
2009-07-24 09:53:24 +00:00
Daniel Dunbar 12368685d8 Switch to getNameStr().
llvm-svn: 76962
2009-07-24 08:24:36 +00:00
Chris Lattner 68d64a2d90 document SectionFlags::Named better and make it more easily greppable by
eliminating isNamed.

llvm-svn: 76946
2009-07-24 04:26:19 +00:00
Chris Lattner 308c7896a4 "fix" PR4612, which is a crash on:
%0 = malloc [3758096384 x i32]

The "malloc" instruction doesn't support 64-bits correctly (see PR715),
and should be removed.  Victor is actively working on fixing this, in 
the meantime just don't crash.

llvm-svn: 76899
2009-07-23 21:26:18 +00:00
Daniel Dunbar 5bf72e20eb Convert StringMap to using StringRef for its APIs.
- Yay for '-'s and simplifications!

 - I kept StringMap::GetOrCreateValue for compatibility purposes, this can
   eventually go away. Likewise the StringMapEntry Create functions still follow
   the old style.

 - NIFC.

llvm-svn: 76888
2009-07-23 18:17:34 +00:00
Lang Hames 077415e84b For real this time: PHI Def & Kill tracking added to PHIElimination.
llvm-svn: 76865
2009-07-23 05:44:24 +00:00
Lang Hames a77a3c3782 Added PHI Def & Kill tracking to PHIElimination pass.
llvm-svn: 76849
2009-07-23 04:34:03 +00:00
David Greene 1164d1f283 Reorder if-else branches as suggested by Bill.
llvm-svn: 76808
2009-07-22 22:32:19 +00:00
David Greene e88680e33e Constify the key in Mi2IndexMap.
llvm-svn: 76801
2009-07-22 21:56:14 +00:00
Evan Cheng d2d52d1906 Ignore undef uses.
llvm-svn: 76799
2009-07-22 21:51:42 +00:00
Daniel Dunbar 5899dda08c Switch some clients to Value::getName(), and other getName() user
simplification.
 - NFC

llvm-svn: 76789
2009-07-22 21:33:09 +00:00
David Greene 6e2eda1c8d Put comment printing under asm-verbose.
llvm-svn: 76780
2009-07-22 20:33:26 +00:00
David Greene 1e2a04ba99 Make some changes suggested by Bill and Evan.
llvm-svn: 76775
2009-07-22 20:08:25 +00:00
Chris Lattner b300a4f988 remove the SelectSectionForMachineConst hook, replacing it with
a new getSectionForMergableConstant hook.  This removes one dependence
of TAI on Type, and provides the hook with enough info to make the 
right decision based on whether the global has relocations etc.

llvm-svn: 76705
2009-07-22 00:28:43 +00:00
Evan Cheng 4dc848f3e8 Let each target determines whether a machine instruction is dead. If true, that allows late codeine passes to delete it.
This is considered a workaround. The problem is some targets are not modeling side effects correctly. PPC is apparently one of those. This patch allows ppc llvm-gcc to bootstrap on Darwin. Once we find out which instruction definitions are wrong, we can remove the PPCInstrInfo workaround.

llvm-svn: 76703
2009-07-22 00:25:27 +00:00
Owen Anderson 47db941fd3 Get rid of the Pass+Context magic.
llvm-svn: 76702
2009-07-22 00:24:57 +00:00
Chris Lattner 4565ef5b65 reimplement Constant::ContainsRelocations as
Constant::getRelocationInfo(), which has a much simpler
to use API.  It still should not be part of libvmcore, but
is better than it was.  Also teach it to be smart about 
hidden visibility.

llvm-svn: 76700
2009-07-22 00:05:44 +00:00
Lang Hames aa037759b2 Exposed PHIElimination pass within CodeGen.
llvm-svn: 76688
2009-07-21 23:47:33 +00:00
David Greene 3424275325 Add some support for iterative coalescers to calculate a joined live
range's weight properly.  This is turned off right now in the sense that
you'll get an assert if you get into a situation that can only be caused
by an iterative coalescer.  All other code paths operate exactly as
before so there is no functional change with this patch.  The asserts
should be disabled if/when an iterative coalescer gets added to trunk.

llvm-svn: 76680
2009-07-21 23:36:14 +00:00
Chris Lattner 9bd736e2f7 no really, I can spell!
llvm-svn: 76679
2009-07-21 23:36:01 +00:00
Chris Lattner cfb01e26bc add an API so target-independent codegen can determine if a constant
pool entry will require relocations against it.  I implemented this
conservatively for ARM, someone who is knowledgable about it should
see if this can be improved.

llvm-svn: 76678
2009-07-21 23:34:23 +00:00
Bruno Cardoso Lopes 40ca1f1c2e Change ELFCodeEmitter logic to emit the constant pool and jump tables to
their appropriate sections before the code itself. They need to be emitted
before the function because on some targets (x86 but not x86_64) the later
may reference a JT or CP entry address

llvm-svn: 76672
2009-07-21 23:13:26 +00:00
Chris Lattner 1eede6c635 revert r76602, 76603, and r76615, pending design discussions.
llvm-svn: 76646
2009-07-21 21:12:58 +00:00
Eli Friedman da9eda8ef6 Remove shift amount flavor. It isn't actually complete enough to
be useful, and it's currently unused.  (Some issues: it isn't actually 
rich enough to capture the semantics on many architectures, and
semantics can vary depending on the type being shifted.)

llvm-svn: 76633
2009-07-21 20:12:16 +00:00
David Greene ef1f36d3c7 Prefix IR dumps with LiveInterval indices when possible. This turns
this:

	%ESI<def> = MOV32rr %EDI<kill>
	ADJCALLSTACKDOWN64 0, %RSP<imp-def>, %EFLAGS<imp-def,dead>, %RSP<imp-use>
	%reg1027<def> = MOVZX64rr32 %ESI
	%reg1027<def> = ADD64ri8 %reg1027, 15, %EFLAGS<imp-def,dead>
	%reg1027<def> = AND64ri8 %reg1027, -16, %EFLAGS<imp-def,dead>
	%RDI<def> = MOV64rr %RSP
	%RDI<def> = SUB64rr %RDI, %reg1027<kill>, %EFLAGS<imp-def,dead>
	%RSP<def> = MOV64rr %RDI

into this:

4	%reg1024<def> = MOV32rr %EDI<kill>
12	ADJCALLSTACKDOWN64 0, %RSP<imp-def>, %EFLAGS<imp-def,dead>, %RSP<imp-use>
20	%reg1025<def> = MOVZX64rr32 %reg1024
28	%reg1026<def> = MOV64rr %reg1025<kill>
36	%reg1026<def> = ADD64ri8 %reg1026, 15, %EFLAGS<imp-def,dead>
44	%reg1027<def> = MOV64rr %reg1026<kill>
52	%reg1027<def> = AND64ri8 %reg1027, -16, %EFLAGS<imp-def,dead>
60	%reg1028<def> = MOV64rr %RSP
68	%reg1029<def> = MOV64rr %reg1028<kill>
76	%reg1029<def> = SUB64rr %reg1029, %reg1027<kill>, %EFLAGS<imp-def,dead>
84	%RSP<def> = MOV64rr %reg1029

This helps greatly when debugging register allocation and coalescing
problems.

llvm-svn: 76615
2009-07-21 18:56:32 +00:00
Chris Lattner 100865e59d make AsmPrinter::doFinalization iterate over the global variables
and call PrintGlobalVariable, allowing elimination and simplification
of various targets.

llvm-svn: 76604
2009-07-21 18:38:57 +00:00
David Greene 3b458645be Add PrefixPrinter arguments to the dump routines for MachineFunction and
MachineBasicBlock.  We'll use these shortly.

llvm-svn: 76603
2009-07-21 18:27:05 +00:00
Owen Anderson c37bc69e91 Rename getConstantInt{True|False} to get{True|False} at Chris' behest.
llvm-svn: 76598
2009-07-21 18:03:38 +00:00
Chris Lattner 1177cee9dc Rename LessPrivateGlobalPrefix -> LinkerPrivateGlobalPrefix to match the
LLVM IR concept.

llvm-svn: 76590
2009-07-21 17:30:51 +00:00
Evan Cheng 07a6ac6b29 Another rewriter bug exposed by recent coalescer changes. ReuseInfo::GetRegForReload() should make sure the "switched" register is in the desired register class. I'm surprised this hasn't caused more failures in the past.
llvm-svn: 76558
2009-07-21 09:15:00 +00:00
Daniel Dunbar 5899e340f3 Simplify / normalize some uses of Value::getName.
llvm-svn: 76553
2009-07-21 08:54:24 +00:00
Bruno Cardoso Lopes 12e543228d Support adding relocations for data sections, handling the cases where
global declared symbols are initialized with references from other global
symbols.

llvm-svn: 76540
2009-07-21 06:51:32 +00:00
Evan Cheng a7bb55ebb6 Fix a dagga combiner bug: avoid creating illegal constant.
Is this really a winning transformation?
fold (shl (srl x, c1), c2) -> (shl (and x, (shl -1, c1)), (sub c2, c1)) or                                                                              
                              (srl (and x, (shl -1, c1)), (sub c1, c2))

llvm-svn: 76535
2009-07-21 05:40:15 +00:00
Owen Anderson 2ad52176f9 Move a bit more state over to the LLVMContext.
llvm-svn: 76533
2009-07-21 02:47:59 +00:00
Evan Cheng 9a47392f2e Cross RC coalescing is now on by default.
llvm-svn: 76519
2009-07-21 00:22:59 +00:00
Dale Johannesen ade297d496 Move stripping of bitcasts in inline asm arguments
to a place where it affects everything.  Occurs
only on calls AFAIK.

llvm-svn: 76502
2009-07-20 23:27:39 +00:00
Bill Wendling d04f088345 Simplify the code in DarwinTargetAsmInfo::emitUsedDirectiveFor so that humans can understand it.
llvm-svn: 76480
2009-07-20 21:38:26 +00:00
Bill Wendling dde1a8eef4 Pass in the unfortunately named "LessPrivatePrefix" for the
"LinkerPrivatePrefix". It seems to have been used in only one place before I
started this "linker_private" business. I'm thinking that a rename is in
order...

llvm-svn: 76479
2009-07-20 21:30:28 +00:00
Evan Cheng 57106d6dc0 Use TII->findCommutedOpIndices to find the commute operands (rather than guessing).
llvm-svn: 76472
2009-07-20 21:16:08 +00:00
Evan Cheng 027d9f93ea Fix some sub-reg coalescing bugs where the coalescer wasn't updating the resulting interval's register class.
llvm-svn: 76458
2009-07-20 19:47:55 +00:00
Bruno Cardoso Lopes 447b7fd4bb For PC relative relocations where symbols are defined in the same section they
are referenced, ignore the relocation entry and patch the relocatable field with
the computed symbol offset directly

llvm-svn: 76414
2009-07-20 08:52:02 +00:00