mirrors/llvm-project
0
0
Fork 0
mirror of https://github.com/llvm/llvm-project.git synced 2025-05-10 22:46:05 +00:00
Code Issues Projects Releases Wiki Activity
63,800 Commits 1,258 Branches 288 Tags
Commit Graph

7344 Commits

Author SHA1 Message Date
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
Chris Lattner
58f9bb2ccd implement a new magic global "llvm.compiler.used" which is like llvm.used, but 
doesn't cause ".no_dead_strip" to be emitted on darwin.

llvm-svn: 76399
 2009-07-20 06:14:25 +00:00
Chris Lattner
029380fad7 use stripPointerCasts to simplify some code. 
llvm-svn: 76397
 2009-07-20 06:05:50 +00:00
Bill Wendling
a3c6f6bffa Add plumbing for the `linker_private' linkage type. This type is meant for 
"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.

This is plumbing, so we don't have a use of it yet. More to come, etc.

llvm-svn: 76385
 2009-07-20 01:03:30 +00:00
Jakob Stoklund Olesen
aba695c7d0 Fix http://llvm.org/bugs/show_bug.cgi?id=4583 
Inline asm instructions may have additional <imp-def,kill> register operands.
These operands are not marked with a flag like the normal asm operands, so we
must not assert that there is a flag.

llvm-svn: 76373
 2009-07-19 19:09:59 +00:00
Daniel Dunbar
ac0ca9241a Fix some minor MSVC compiler warnings. 
llvm-svn: 76356
 2009-07-19 01:38:38 +00:00
Bruno Cardoso Lopes
50bf9a60e5 Use R_X86_64_32S to handle Jump Table Index relocation entries. Hide TAI usage inside getSection* functions 
llvm-svn: 76347
 2009-07-18 23:24:01 +00:00
Bruno Cardoso Lopes
e376b53c7b Use a better name for the label relocations while emitting them for Jump Tables 
llvm-svn: 76334
 2009-07-18 20:52:11 +00:00
Bruno Cardoso Lopes
484e90b45e Add support to properly reference private symbols on relocation entries. 
Use proper relocation type to build relocations for JumpTables (rodata
sections).

llvm-svn: 76326
 2009-07-18 19:30:09 +00:00
Evan Cheng
090db9b7a9 Catch more coalescing opportunities. 
llvm-svn: 76282
 2009-07-18 04:52:23 +00:00
Evan Cheng
e20cbf3068 Enable cross register class coalescing. 
llvm-svn: 76281
 2009-07-18 02:10:10 +00:00
Evan Cheng
a776067d3f Fix pr4552. Stack slot coloring with register must take care not to generate illegal ams. 
llvm-svn: 76258
 2009-07-17 22:42:51 +00:00
Chris Lattner
1fcac9fa09 remove AsmPrinter::findGlobalValue, just use Value::stripPointerCasts instead. 
llvm-svn: 76246
 2009-07-17 22:00:23 +00:00
Evan Cheng
97b9a4b412 Simplify some more. 
llvm-svn: 76239
 2009-07-17 21:06:58 +00:00
Chris Lattner
1af5af8640 Use more terse and precise linkage checks. 
llvm-svn: 76237
 2009-07-17 21:00:50 +00:00
Dan Gohman
58b0e71886 Eliminate yet another copy of getOpcode. 
llvm-svn: 76236
 2009-07-17 20:58:59 +00:00
Chris Lattner
e03a866b34 these two pieces of code are the same because we always 
emit the EHFrame label next to the section_eh_frame and
eh_frame_common labels.

llvm-svn: 76234
 2009-07-17 20:53:51 +00:00
Chris Lattner
e79b2bc088 Untangle a snarl that I discovered when updating the mangler, 
starting in getCurrentFunctionEHName.  Among other problems,
we would try to privative a "foo.eh" label, but end up emitting
the label as _Lfoo.eh instead of L_foo.eh on darwin.  This is really
bad, and the linker has always tolerated these labels existing.
For now, just emit them as _foo.eh.

This patch also fixes problems with ".eh" labels on unnamed
functions and eliminates two strangely defined TargetAsmInfo
hooks.

llvm-svn: 76231
 2009-07-17 20:46:40 +00:00
Chris Lattner
7a7cd9294d fix include guard. 
llvm-svn: 76228
 2009-07-17 20:32:07 +00:00