Commit Graph

57004 Commits

Author SHA1 Message Date
Eric Christopher 42fa84a880 Rework constant expr and array handling for objectsize instcombining.
Fix bugs where we would compute out of bounds as in bounds, and where
we couldn't know that the linker could override the size of an array.

Add a few new testcases, change existing testcase to use a private
global array instead of extern.

llvm-svn: 95283
2010-02-04 02:55:34 +00:00
Evan Cheng 01676f9ff4 It's too risky to eliminate sext / zext of call results for tail call optimization even if the caller / callee attributes completely match. The callee may have been bitcast'ed (or otherwise lied about what it's doing).
llvm-svn: 95282
2010-02-04 02:45:02 +00:00
Dan Gohman 9946b5109c Change the argument to getIntegerSCEV to be an int64_t, rather
than int. This will make it more convenient for LSR, which does
a lot of things with int64_t offsets.

llvm-svn: 95281
2010-02-04 02:43:51 +00:00
Evan Cheng 9976832a05 Indirect tail call has to go through a call preserved register since it's after callee register pops. X86 isel lowering is using EAX / R11 and it was somehow adding that to function live out. That prevented the real function return register from being added to the function live out list and bad things happen.
This fixes 483.xalancbmk (with tail call opt).

llvm-svn: 95280
2010-02-04 02:40:39 +00:00
Sean Callanan 9eb8d6fb43 Filled in a few new APIs for the enhanced
disassembly library that provide access to
instruction information, and fixed ambiguous
wording in the comments for the header.

llvm-svn: 95274
2010-02-04 01:43:08 +00:00
Dan Gohman 77fe07a93a Use a tab instead of space after .type, for consistency.
llvm-svn: 95272
2010-02-04 01:42:13 +00:00
Dale Johannesen c337d6538a Rewrite FP constant handling in DEBUG_VALUE yet
again, so it more or less handles long double.
Restore \n removed in latest MC frenzy.

llvm-svn: 95271
2010-02-04 01:33:43 +00:00
Victor Hernandez d44ee35f30 Fix (and test) function-local metadata that occurs before the instruction that it refers to; fix is to not enumerate operands of function-local metadata until after all instructions have been enumerated
llvm-svn: 95269
2010-02-04 01:13:08 +00:00
Eric Christopher f12e18db21 If we're dealing with a zero-length array, don't lower to any
particular size, we just don't know what the length is yet.

llvm-svn: 95266
2010-02-03 23:56:07 +00:00
Dale Johannesen e5177e685c This test passes now on ppc darwin; if it doesn't pass
on some other ppc say something on the list.

llvm-svn: 95265
2010-02-03 22:33:17 +00:00
Dale Johannesen c5df1559ca This test passes now on ppc darwin, so reenable it.
llvm-svn: 95264
2010-02-03 22:29:02 +00:00
Dale Johannesen 0c426100d0 Debugging is now reenabled on PPC darwin, so reenable
these tests (they pass).

llvm-svn: 95263
2010-02-03 22:24:49 +00:00
Chris Lattner 223084d3ac enhance new encoder to support prefixes + RawFrm
instructions with no operands.  It can now handle

define void @test2() nounwind { ret void }

llvm-svn: 95261
2010-02-03 21:57:59 +00:00
Chris Lattner 6794f9b9f6 set up some infrastructure, some minor cleanups.
llvm-svn: 95260
2010-02-03 21:43:43 +00:00
Evan Cheng f4139067ee Speculatively disable x86 automatic tail call optimization while we track down a self-hosting issue.
llvm-svn: 95259
2010-02-03 21:40:40 +00:00
Evan Cheng 112a871fe2 Make test less fragile
llvm-svn: 95258
2010-02-03 21:39:04 +00:00
Chris Lattner f914be06d2 stub out a new X86 encoder, which can be tried with
-enable-new-x86-encoder until its stable.

llvm-svn: 95256
2010-02-03 21:24:49 +00:00
Chris Lattner 2f750f3b5a rename createX86MCCodeEmitter to more accurately reflect what it creates.
llvm-svn: 95254
2010-02-03 21:14:33 +00:00
Kevin Enderby 00f1e6c030 Added support for X86 instruction prefixes so llvm-mc can assemble them. The
Lock prefix, Repeat string operation prefixes and the Segment override prefixes.
Also added versions of the move string and store string instructions without the
repeat prefixes to X86InstrInfo.td. And finally marked the rep versions of
move/store string records in X86InstrInfo.td as isCodeGenOnly = 1 so tblgen is
happy building the disassembler files.

llvm-svn: 95252
2010-02-03 21:04:42 +00:00
Devang Patel d231689adb Emit appropriate expression to find virtual base offset.
llvm-svn: 95242
2010-02-03 20:08:48 +00:00
Devang Patel 999b499024 Provide interface to identifiy artificial methods.
llvm-svn: 95240
2010-02-03 19:57:19 +00:00
Jeffrey Yasskin 099552a0ca r94686 changed all ModuleProvider parameters to Modules, which made the
1-argument ExecutionEngine::create(Module*) ambiguous with the signature that
used to be ExecutionEngine::create(ModuleProvider*, defaulted_params).  Fixed
by removing the 1-argument create().  Fixes PR6221.

llvm-svn: 95236
2010-02-03 19:18:04 +00:00
Jeffrey Yasskin 212badaa60 Make docs less specific about their versions, at Chris's suggestion.
llvm-svn: 95231
2010-02-03 18:49:55 +00:00
Daniel Dunbar c0f5f284d4 Add llvm_supports_darwin_and_target to DejaGNU as well, I'd almost forgotten it
ever existed. :)

llvm-svn: 95230
2010-02-03 18:43:46 +00:00
Jeffrey Yasskin 696d965708 Mention the version in the documentation index and link to the 2.6 docs, which
is what most readers will actually be aiming for.

llvm-svn: 95229
2010-02-03 18:23:23 +00:00
Daniel Dunbar e3ee332fe0 llvm-mc: Add --show-inst option, for showing the MCInst inline with the assembly
output.

llvm-svn: 95227
2010-02-03 18:18:30 +00:00
Dan Gohman b44d2abc91 Add "Author Date Id Revision" svn:keyword properties to these files, as
is done with the other html files in doc, to hopefully keep strings like
"Last modified" current.

llvm-svn: 95225
2010-02-03 17:27:31 +00:00
Bob Wilson 04365c5f72 Adjust the heuristics used to decide when SROA is likely to be profitable.
The SRThreshold value makes perfect sense for checking if an entire aggregate
should be promoted to a scalar integer, but it is not so good for splitting
an aggregate into its separate elements.  A struct may contain a large embedded
array along with some scalar fields that would benefit from being split apart
by SROA.  Even if the total aggregate size is large, it may still be good to
perform SROA.  Thus, the most important piece of this patch is simply moving
the aggregate size comparison vs. SRThreshold so that it guards only the
aggregate promotion.

We have also been checking the number of elements to decide if an aggregate
should be split up.  The limit of "SRThreshold/4" seemed rather arbitrary,
and I don't think it's very useful to derive this limit from SRThreshold
anyway.  I've collected some data showing that the current default limit of
32 (since SRThreshold defaults to 128) is a reasonable cutoff for struct
types.  One thing suggested by the data is that distinguishing between structs
and arrays might be useful.  There are (obviously) a lot more large arrays
than large structs (as measured by the number of elements and not the total
size -- a large array inside a struct still counts as a single element given
the way we do SROA right now).  Out of 8377 arrays where we successfully
performed SROA while compiling a large set of benchmarks, only 16 of them had
more than 8 elements.  And, for those 16 arrays, it's not at all clear that
SROA was actually beneficial.  So, to offset the compile time cost of
investigating more large structs for SROA, the patch lowers the limit on array
elements to 8.

This fixes Apple Radar 7563690.

llvm-svn: 95224
2010-02-03 17:23:56 +00:00
Garrison Venn 8665bcddec Repository access test commit
llvm-svn: 95221
2010-02-03 12:00:02 +00:00
Zhongxing Xu f5e0e3c3a7 Remove redundant declaration.
llvm-svn: 95213
2010-02-03 09:05:21 +00:00
Zhongxing Xu dcfa2576b0 Add constructors.
llvm-svn: 95212
2010-02-03 09:04:11 +00:00
Chris Lattner 3bcbdb8a28 reapply r95206, this time actually delete the code I'm replacing in the third stub case.
llvm-svn: 95209
2010-02-03 06:42:38 +00:00
Chris Lattner 37fad99a05 revert r95206, it is apparently causing bootstrap failure on i386-darwin9
llvm-svn: 95208
2010-02-03 06:41:18 +00:00
Chris Lattner 44f7325de5 print instruction encodings with the existing comment facilities,
so that llvm-mc -show-encoding prints like this:

	hlt                                                 ## encoding: [0xf4]

instead of like this:

	hlt
                     # encoding: [0xf4]

llvm-svn: 95207
2010-02-03 06:28:13 +00:00
Chris Lattner 3eef965b06 make the x86 backend emit darwin stubs through mcstreamer
instead of textually.

llvm-svn: 95206
2010-02-03 06:21:16 +00:00
Chris Lattner 082f484074 make MachineModuleInfoMachO hold non-const MCSymbol*'s instead
of const ones.  non-const ones aren't very useful, because you can't
even, say, emit them.

llvm-svn: 95205
2010-02-03 06:18:30 +00:00
Chris Lattner edcf065a29 change addPassesToEmitFile to return true on failure instead of its input,
add -filetype=null for performance testing and remove -filetype=dynlib,
which isn't planned to be implemented.

llvm-svn: 95202
2010-02-03 05:55:08 +00:00
Evan Cheng 27a41d5473 Revert 94937 and move the noreturn check to codegen.
llvm-svn: 95198
2010-02-03 03:55:59 +00:00
Sean Callanan 6a6f9cc634 Fixed the disassembler so it accepts multiple
instructions on a single line.  Also made it a
bit more forgiving when it reports errors.

llvm-svn: 95197
2010-02-03 03:46:41 +00:00
John McCall df951bddb8 Make APInt::countLeadingZerosSlowCase() treat the contents of padding bits
as undefined.  Fixes an assertion in APFloat::toString noticed by Dale.

llvm-svn: 95196
2010-02-03 03:42:44 +00:00
Evan Cheng 40905b4302 Allow all types of callee's to be tail called. But avoid automatic tailcall if the callee is a result of bitcast to avoid losing necessary zext / sext etc.
llvm-svn: 95195
2010-02-03 03:28:02 +00:00
Jeffrey Yasskin bf5ce0a6c2 Reconfigure with autoconf-2.60, and fix autoconf.ac to work with that version.
llvm-svn: 95191
2010-02-03 02:11:49 +00:00
Chris Lattner 0b78cc2af5 don't emit \n's at the start of X86AsmPrinter::runOnMachineFunction,
.o files don't like that.

llvm-svn: 95187
2010-02-03 01:49:49 +00:00
Chris Lattner f1866ab682 privatize a bunch of methods and move \n printing into them.
llvm-svn: 95186
2010-02-03 01:46:05 +00:00
Chris Lattner aaa1db66a1 rename printMachineInstruction -> EmitInstruction
llvm-svn: 95184
2010-02-03 01:41:03 +00:00
Dale Johannesen a466692552 Reapply 95050 with a tweak to check the register class.
llvm-svn: 95183
2010-02-03 01:40:33 +00:00
Chris Lattner 6f1f865fba print instructions through the mcstreamer.
llvm-svn: 95181
2010-02-03 01:16:28 +00:00
Chris Lattner 402a111318 emit instructions through the streamer.
llvm-svn: 95180
2010-02-03 01:15:03 +00:00
Chris Lattner 183ef68ef7 Finally eliminate printMCInst and send instructions through
the streamer.  Demo:

$ cat t.ll 
define i32 @test() nounwind {
  ret i32 42
}
$ llc t.ll -o -
...
_test: 
	movl	$42, %eax
	ret
$ llc t.ll -o t.o -filetype=obj
$ otool -tv t.o 
t.o:
(__TEXT,__text) section
_test:
00000000	movl	$0x0000002a,%eax
00000005	ret

llvm-svn: 95179
2010-02-03 01:13:25 +00:00
Chris Lattner 996ec840d0 rejigger the world so that EmitInstruction prints the \n at
the end of the instruction instead of expecting the caller to
do it.  This currently causes the asm-verbose instruction 
comments to be on the next line.

llvm-svn: 95178
2010-02-03 01:09:55 +00:00
Chris Lattner 41ad1905c9 sink handling of target-independent machine instrs (other
than DEBUG_VALUE :(  ) into the target indep AsmPrinter.cpp
file.   This allows elimination of the 
NO_ASM_WRITER_BOILERPLATE hack among other things.

llvm-svn: 95177
2010-02-03 01:00:52 +00:00
Chris Lattner dee74e2805 make these less sensitive to asm verbose changes by disabling it for them.
llvm-svn: 95175
2010-02-03 00:48:53 +00:00
Dale Johannesen 55e768c99a Print FPImm a less kludgy way; APFloat.toString seems
to have some problems anyway.

llvm-svn: 95171
2010-02-03 00:36:40 +00:00
Bob Wilson 76e8c59509 Fix some comment typos.
llvm-svn: 95170
2010-02-03 00:33:21 +00:00
Chris Lattner 249453fff0 pass an instprinter into the AsmPrinter if it is available.
llvm-svn: 95168
2010-02-03 00:29:55 +00:00
Chris Lattner d111bd518d make any use of the "O" stream in asmprinter print to
stderr if in filetype=obj mode.  This is a hack, and will
live until dwarf emission and other random stuff that is
not yet going through MCStreamer is upgraded.  It only
impacts filetype=obj mode.

llvm-svn: 95166
2010-02-03 00:22:02 +00:00
Eric Christopher d86233c118 Recommit this, looks like it wasn't the cause.
llvm-svn: 95165
2010-02-03 00:21:58 +00:00
Evan Cheng 5f238a9650 ByVal frame object size should be that of the byval argument, not the size of the type which is just a pointer. This is not known to break stuff but is wrong nevertheless.
llvm-svn: 95163
2010-02-02 23:58:13 +00:00
Chris Lattner 8856a67e41 Hook up -filetype=obj through the MachO streamer. Here's a demo:
$ cat t.ll 
@g = global i32 42
$ llc t.ll -o t.o -filetype=obj
$ nm t.o
00000000 D _g

There is still a ton of work left.  Instructions are not being encoded
yet apparently.

llvm-svn: 95162
2010-02-02 23:57:42 +00:00
Jim Grosbach d0a2f52f8f As of r79039, we still try to eliminate the frame pointer on leaf functions,
even when -disable-fp-elim is specified.

llvm-svn: 95161
2010-02-02 23:56:14 +00:00
Evan Cheng 6f36a083ef Revert 95130.
llvm-svn: 95160
2010-02-02 23:55:14 +00:00
Dale Johannesen b3cfc2b77c Accept floating point immediates in DEBUG_VALUE.
llvm-svn: 95159
2010-02-02 23:54:23 +00:00
Daniel Dunbar bdbffbedf0 AsmParser/X86: Add temporary hack to allow parsing "sal". Eventually we need
some mechanism for specifying alternative syntaxes, but I'm not sure what form
that should take yet.

llvm-svn: 95158
2010-02-02 23:46:47 +00:00
Daniel Dunbar 3b8a4663b9 AsmMatcherEmitter: Use stable_sort when reordering instructions, so that order
is still deterministic even amongst ambiguous instructions (eventually ambiguous
match orders will be a hard error, but we aren't there yet).

llvm-svn: 95157
2010-02-02 23:46:36 +00:00
Chris Lattner c49f8c7456 use OwningPtr and factor code better.
llvm-svn: 95156
2010-02-02 23:45:17 +00:00
Chris Lattner b0d44c3807 refactor code so that LLVMTargetMachine creates the asmstreamer and
mccontext instead of having AsmPrinter do it.  This allows other 
types of MCStreamer's to be passed in.

llvm-svn: 95155
2010-02-02 23:37:42 +00:00
Eric Christopher e67d01a9a8 Hopefully temporarily revert this.
llvm-svn: 95154
2010-02-02 23:01:31 +00:00
Chris Lattner 530c72a65d simplify getVerboseAsm
llvm-svn: 95153
2010-02-02 22:58:13 +00:00
Chris Lattner 32445d300f move handling of asm-verbose out of AsmPrinter.cpp into LLVMTargetMachine.cpp with the rest of the command line options.
llvm-svn: 95152
2010-02-02 22:54:51 +00:00
Chris Lattner f8928453bc remove dead #include, stupid symlinks.
llvm-svn: 95150
2010-02-02 22:37:42 +00:00
Chris Lattner 73051044fd remove the # TAILCALL markers, which was causing the to fail.
It's unclear if the matcher is nondeterminstic of what here,
but I'm getting matches without TAILCALL and some other hosts
are getting matches with it.

llvm-svn: 95149
2010-02-02 22:36:29 +00:00
Chris Lattner 919b97436e Remove a bunch of stuff around the edges of the ELF writer.
Now the only use of the ELF writer is the JIT, which won't be
easy to fix in the short term. :( :(

llvm-svn: 95148
2010-02-02 22:31:11 +00:00
Eric Christopher f9553572b7 Reformat my last patch slightly.
llvm-svn: 95147
2010-02-02 22:29:26 +00:00
Chris Lattner f46359642f tidy some targets.
llvm-svn: 95146
2010-02-02 22:13:21 +00:00
Eric Christopher 4264e7e46f Re-add strcmp and known size object size checking optimization.
Passed bootstrap and nightly test run here.

llvm-svn: 95145
2010-02-02 22:10:43 +00:00
Chris Lattner 6a6137832d remove dead code.
llvm-svn: 95144
2010-02-02 22:03:00 +00:00
Daniel Dunbar 09d81caa12 MCAssembler/Darwin: Add a test (on Darwin) that we assemble a bunch of
instructions exactly like 'as', and produce equivalent .o files.

llvm-svn: 95143
2010-02-02 22:00:15 +00:00
Chris Lattner 308acc4ab0 detemplatize the ppc code emitter.
llvm-svn: 95142
2010-02-02 21:55:58 +00:00
Chris Lattner a3fa43932d remove dead code.
llvm-svn: 95141
2010-02-02 21:52:03 +00:00
Chris Lattner e8565d8eaf add a definition for ID.
llvm-svn: 95140
2010-02-02 21:49:29 +00:00
Chris Lattner 8d806876c0 detemplatize ARM code emitter.
llvm-svn: 95138
2010-02-02 21:48:51 +00:00
Daniel Dunbar 3184f22447 MCAsmParser/X86: Represent absolute memory operands as CodeGen does, with scale
== 1.

llvm-svn: 95137
2010-02-02 21:44:16 +00:00
Daniel Dunbar d28d6db735 MCCodeEmitter/X86: Handle tied registers better when converting MCInst ->
MCMachineInstr. This also fixes handling of tied registers for MRMSrcMem
instructions.

llvm-svn: 95136
2010-02-02 21:44:10 +00:00
Daniel Dunbar 255a8c8b13 MC/Mach-O: Set SOME_INSTRUCTIONS bit for sections.
llvm-svn: 95135
2010-02-02 21:44:01 +00:00
Chris Lattner c83cfb9dfa remove dead code.
llvm-svn: 95134
2010-02-02 21:38:59 +00:00
Chris Lattner 4578098b97 detemplatize alpha code emission, it is now JIT specific.
llvm-svn: 95133
2010-02-02 21:35:47 +00:00
Chris Lattner 0cd6c2a047 eliminate all the dead addSimpleCodeEmitter implementations.
eliminate random "code emitter" stuff in Alpha, except for
the JIT path.  Next up, remove the template cruft.

llvm-svn: 95131
2010-02-02 21:31:47 +00:00
Evan Cheng c1b0116ff1 Pass callsite return type to TargetLowering::LowerCall and use that to check sibcall eligibility.
llvm-svn: 95130
2010-02-02 21:29:10 +00:00
Dan Gohman 47d7347858 Make DenseSet's erase pass on the return value rather than swallowing it.
llvm-svn: 95127
2010-02-02 21:11:22 +00:00
Dan Gohman 6013cf9cbe Fix function names in comments. Thanks Duncan!
llvm-svn: 95126
2010-02-02 21:10:27 +00:00
Chris Lattner f0cb12acf2 eliminate FileModel::Model, just use CodeGenFileType. The client
of the code generator shouldn't care what object format a target
uses.

llvm-svn: 95124
2010-02-02 21:06:45 +00:00
Chris Lattner de9b3ada5d this apparently depends on the host somehow.
llvm-svn: 95122
2010-02-02 20:57:28 +00:00
Bill Wendling ed0278c37f XFAIL for PPC Darwin.
llvm-svn: 95121
2010-02-02 20:56:02 +00:00
Chris Lattner 2481509162 disable this test for now.
llvm-svn: 95120
2010-02-02 20:41:39 +00:00
Sean Callanan 0205452f38 ...and fixed the Makefile.
llvm-svn: 95119
2010-02-02 20:20:30 +00:00
Sean Callanan 2e66266d68 Renamed the ed directory to edis, as suggested
yesterday.  This eliminates possible confusion
about what exactly in this directory; the name
is still short, though.

llvm-svn: 95118
2010-02-02 20:11:23 +00:00
Chris Lattner 29e0702dc8 remove the remnants of TargetMachOWriterInfo.
llvm-svn: 95114
2010-02-02 19:41:23 +00:00
Chris Lattner 809ae81ff9 Add a new top-level MachO.h file for manifest constants, fixing
a layering violation from MC -> Target.

llvm-svn: 95113
2010-02-02 19:38:14 +00:00
Johnny Chen 8487d65ea2 Added t2BFI (Bitfield Insert) entry for disassembler, with blank pattern field.
llvm-svn: 95112
2010-02-02 19:31:58 +00:00
Chris Lattner d1e821f7eb remove PPCMachOWriterInfo.
llvm-svn: 95111
2010-02-02 19:23:55 +00:00
Chris Lattner 03dc0f7077 eliminate all forms of addPassesToEmitMachineCode except
the one used by the JIT.  Remove all forms of
addPassesToEmitFileFinish except the one used by the static
code generator.  Inline the remaining version of
addPassesToEmitFileFinish into its only caller.

llvm-svn: 95109
2010-02-02 19:14:27 +00:00
Kevin Enderby db32c4567b Added another version of the X86 assembler matcher test case.
This test case is different subset of the full auto generated test case, and a
larger subset that is in x86_32-bit.s (that set will encode correctly).  These
instructions can pass though llvm-mc as it were a logical cat(1) and then
reassemble to the same instruction.  It is useful as we bring up the parser and
matcher so we don't break things that currently work.

llvm-svn: 95107
2010-02-02 19:05:57 +00:00
Chris Lattner 57992e2da6 remove dead code, we're requesting TargetMachine::AssemblyFile here.
llvm-svn: 95105
2010-02-02 19:03:39 +00:00
Dale Johannesen da431c76fb Test revert 95050; there's a good chance it's causing
buildbot failure.

llvm-svn: 95103
2010-02-02 18:52:56 +00:00
Chris Lattner 2fdf5b535e Inline addAssemblyEmitter into its one real caller and delete
the -print-emitted-asm option.  The JIT shouldn't have to pull
in the asmprinter.

llvm-svn: 95100
2010-02-02 18:44:12 +00:00
Duncan Sands fa5f5965de Adding missing methods for creating Add, Mul, Neg and Sub with NUW.
llvm-svn: 95086
2010-02-02 12:53:04 +00:00
Zhongxing Xu 30678293f1 Return value on every path.
llvm-svn: 95075
2010-02-02 07:05:31 +00:00
Zhongxing Xu 0bb19a0483 simplify code.
llvm-svn: 95074
2010-02-02 06:33:32 +00:00
Zhongxing Xu b6c17a84d1 More logic correction: RemoveOverlap should always create new tree. Add a
parameter to record whether changes actually happened.

llvm-svn: 95073
2010-02-02 06:22:08 +00:00
Zhongxing Xu 4e9418ab28 Add a lookup method to the IntervalMap. The difference from the original
lookup is that if the lookup key is contained in the key, we return the data.

llvm-svn: 95070
2010-02-02 05:23:23 +00:00
Devang Patel 057c642486 Apparently gdb is not amused by empty lines in pubtypes section.
llvm-svn: 95064
2010-02-02 03:47:27 +00:00
Devang Patel 6d404adc1b NULL terminate name in pubtypes sections.
llvm-svn: 95062
2010-02-02 03:37:03 +00:00
Chris Lattner 8e2c471614 don't turn (A & (C0?-1:0)) | (B & ~(C0?-1:0)) -> C0 ? A : B
for vectors.  Codegen is generating awful code or segfaulting
in various cases (e.g. PR6204).

llvm-svn: 95058
2010-02-02 02:43:51 +00:00
Zhongxing Xu 372688757b Fix a bunch of errors in the old logic.
llvm-svn: 95056
2010-02-02 02:40:56 +00:00
Chris Lattner 302240d73e fix a crash in loop unswitch on a loop invariant vector condition.
llvm-svn: 95055
2010-02-02 02:26:54 +00:00
Chris Lattner 29bb9272a6 remove an unreduced testcase, rename another.
llvm-svn: 95054
2010-02-02 02:23:37 +00:00
Evan Cheng 55afd2564c Perform sibcall in some cases when arguments are passes memory. Look for cases
where callee's arguments are already in the caller's own caller's stack and
they line up perfectly. e.g.

extern int foo(int a, int b, int c);

int bar(int a, int b, int c) {
  return foo(a, b, c);
}

llvm-svn: 95053
2010-02-02 02:22:50 +00:00
Sean Callanan 339975e5d5 Removed an unnecessary class from the EDDisassembler
implementation.  Also made sure that the register maps
were created during disassembler initialization.

llvm-svn: 95051
2010-02-02 02:18:20 +00:00
Dale Johannesen c84816a62e Make local RA smarter about reusing input register of a copy
as output.  Needed for (functional) correctness in inline asm,
and should be generally beneficial.  7361612.

llvm-svn: 95050
2010-02-02 02:08:02 +00:00
Zhongxing Xu d2f8ba0b3d 11.8p1: A nested class is a member and as such has the same access rights as
any other member.

llvm-svn: 95047
2010-02-02 01:57:01 +00:00
Dan Gohman 949458d014 LangRef.html says that inttoptr and ptrtoint always use zero-extension
when the cast is extending.

llvm-svn: 95046
2010-02-02 01:44:02 +00:00
Dan Gohman f644af8bbe Factor out alignof expression folding into a separate function and
generalize it to handle more cases.

llvm-svn: 95045
2010-02-02 01:41:39 +00:00
Dan Gohman 7e5f1b2773 Various code simplifications.
llvm-svn: 95044
2010-02-02 01:38:49 +00:00
Daniel Dunbar 13ad81bd70 Update CMake.
llvm-svn: 95041
2010-02-02 01:12:20 +00:00
Eric Christopher 14dfc3f6df Don't need to check the last argument since it'll always be bool. We also
don't use TargetData here.

llvm-svn: 95040
2010-02-02 00:51:45 +00:00
Eric Christopher 9afa973203 More indentation/tabification fixes.
llvm-svn: 95036
2010-02-02 00:13:06 +00:00
Eric Christopher 1408234753 Untabify previous commit.
llvm-svn: 95035
2010-02-02 00:06:55 +00:00
Sean Callanan 10b9639b74 Changed to Chris Lattner's suggested approach, which
merely stubs out the blocks-based disassembly functions
if the library wasn't built with blocks, which allows a
constant .exports file and also properly deals with
situations in which the compiler used to build a client
is different from the compiler used to build the library.

llvm-svn: 95034
2010-02-02 00:04:46 +00:00
Nate Begeman 0b810279c8 Kill the Mach-O writer, and temporarily make filetype=obj an error.
The MCStreamer based assemblers will take over for this functionality.

llvm-svn: 95033
2010-02-01 23:56:58 +00:00
Sean Callanan 0972067c93 Fix for builds with separate source and build
directories (like, oh, say, any multistage build)

llvm-svn: 95028
2010-02-01 23:27:57 +00:00
Eric Christopher 56e4182c49 Formatting.
llvm-svn: 95027
2010-02-01 23:25:03 +00:00
Johnny Chen 5b66b31774 MOVi16 should also be marked as a UnaryDP instruction, i.e., it doesn't have a
Rn operand.

llvm-svn: 95025
2010-02-01 23:06:04 +00:00
Sean Callanan 23bd0193d4 Updated to use the proper .exports file for the
target platform, depending on whether the target
supports the blocks API or not

llvm-svn: 95024
2010-02-01 23:01:38 +00:00
Bill Wendling c5829c4a50 Add "dump" method to IVUsersOneStride.
llvm-svn: 95022
2010-02-01 22:51:23 +00:00
Dale Johannesen 257d2dafbd Testcase for 94996 (PR 6157)
llvm-svn: 95021
2010-02-01 22:46:05 +00:00
Evan Cheng a49d8e6d38 Fix PR6196. GV callee may not be a function.
llvm-svn: 95017
2010-02-01 22:40:09 +00:00
Evan Cheng 4eb3d2867c Add test case for 95013.
llvm-svn: 95014
2010-02-01 22:32:42 +00:00
Mon P Wang d74e0023c5 Improve EXTRACT_VECTOR_ELT patch based on comments from Duncan
llvm-svn: 95012
2010-02-01 22:15:09 +00:00
Sean Callanan 47cbefac94 Rollback on including blocks functionality in .exports
because some platforms don't support blocks and then
break because the symbols aren't present

llvm-svn: 95011
2010-02-01 21:57:50 +00:00
Bob Wilson d517b52012 Add an option to GVN to remove all partially redundant loads. This is currently
disabled by default.  This divides the existing load PRE code into 2 phases:
first it checks that it is safe to move the load to each of the predecessors
where it is unavailable, and then if it is safe, the code is changed to move
the load.  Radar 7571861.

llvm-svn: 95007
2010-02-01 21:17:14 +00:00
Duncan Sands 180334e13f Do an early exit when the result is known cheaply.
llvm-svn: 95002
2010-02-01 20:57:35 +00:00
Chris Lattner f5edeebd8c eliminate a bunch of pointless LLVMContext arguments.
llvm-svn: 95001
2010-02-01 20:48:08 +00:00
Duncan Sands dddba06e9e Fix typo "of" -> "or" and change the way a line was formatted to fit
into 80 columns to match my artistic preferences.

llvm-svn: 95000
2010-02-01 20:42:02 +00:00
Chris Lattner 94eb4b285b fix PR6195, a bug constant folding scalar -> vector compares.
llvm-svn: 94997
2010-02-01 20:04:40 +00:00
Dale Johannesen 0b30cfc57e fix PR 6157. Testcase pending.
llvm-svn: 94996
2010-02-01 19:54:53 +00:00
Chris Lattner 9306ffa05a cleanups.
llvm-svn: 94995
2010-02-01 19:54:45 +00:00
Chris Lattner 3c46e14137 fix PR6197 - infinite recursion in ipsccp due to block addresses
evaluateICmpRelation wasn't handling blockaddress.

llvm-svn: 94993
2010-02-01 19:35:08 +00:00
Mon P Wang 72c60c73af Fixed a couple of optimization with EXTRACT_VECTOR_ELT that assumes the result
type is the same as the element type of the vector.  EXTRACT_VECTOR_ELT can
be used to extended the width of an integer type.  This fixes a bug for
Generic/vector-casts.ll on a ppc750.

llvm-svn: 94990
2010-02-01 19:03:18 +00:00
Dan Gohman 36bca4e4ba Update this test for a trivial register allocation difference.
llvm-svn: 94989
2010-02-01 19:00:32 +00:00
Dan Gohman e5e1b7b05a Generalize target-independent folding rules for sizeof to handle more
cases, and implement target-independent folding rules for alignof and
offsetof. Also, reassociate reassociative operators when it leads to
more folding.

Generalize ScalarEvolution's isOffsetOf to recognize offsetof on
arrays. Rename getAllocSizeExpr to getSizeOfExpr, and getFieldOffsetExpr
to getOffsetOfExpr, for consistency with analagous ConstantExpr routines.

Make the target-dependent folder promote GEP array indices to
pointer-sized integers, to make implicit casting explicit and exposed
to subsequent folding.

And add a bunch of testcases for this new functionality, and a bunch
of related existing functionality.

llvm-svn: 94987
2010-02-01 18:27:38 +00:00
Chris Lattner 846a52e228 fix rdar://7590304, a miscompilation of objc apps on arm. The caller
of objc message send was getting marked arm_apcscc, but the prototype
isn't.  This is fine at runtime because objcmsgsend is implemented in
assembly.  Only turn a mismatched caller and callee into 'unreachable'
if the callee is a definition.

llvm-svn: 94986
2010-02-01 18:11:34 +00:00
Chris Lattner 2cecedf081 fix rdar://7590304, an infinite loop in instcombine. In the invoke
case, instcombine can't zap the invoke for fear of changing the CFG.
However, we have to do something to prevent the next iteration of
instcombine from inserting another store -> undef before the invoke
thereby getting into infinite iteration between dead store elim and
store insertion.

Just zap the callee to null, which will prevent the next iteration
from doing anything.

llvm-svn: 94985
2010-02-01 18:04:58 +00:00
Bob Wilson f65ba356e1 Fix pr6198 by moving the isSized() check to an outer conditional.
The testcase from pr6198 does not crash for me -- I don't know what's up with
that -- so I'm not adding it to the tests.

llvm-svn: 94984
2010-02-01 17:41:44 +00:00
Dan Gohman de047f2051 Add a getNUWMul function.
llvm-svn: 94982
2010-02-01 16:38:14 +00:00
Dan Gohman ede94e6850 Add a generalized form of ConstantExpr::getOffsetOf which works for
array types as well as struct types, and which accepts arbitrary
Constant indicies.  

llvm-svn: 94981
2010-02-01 16:37:38 +00:00
Bruno Cardoso Lopes aa8c429a53 MulOp is actually a Mips specific node, so do the match using Opcode. This fixes PR6192
llvm-svn: 94977
2010-02-01 12:16:39 +00:00
Zhongxing Xu d41dacdcbf Add an immutable interval map, prepared to be used by flat memory model
in the analyzer. WIP.

llvm-svn: 94976
2010-02-01 10:43:31 +00:00
Sean Callanan bc7bd4bf40 Whoops, left some debugging code in that broke
a buildbot.  Removed.

llvm-svn: 94975
2010-02-01 09:02:24 +00:00
Sean Callanan 328f60f08c Added the enhanced disassembly library's implementation and
fleshed out the .exports file.  I still have to fix several
details of operand parsing, but the basic functionality is
there and usable.

llvm-svn: 94974
2010-02-01 08:49:35 +00:00
Zhongxing Xu 7120eb77d1 Simplify code. We can compare TNew with T in one batch.
llvm-svn: 94973
2010-02-01 07:32:52 +00:00
Evan Cheng ed8ca56eeb Undo r94946 now all the tests are passing again.
llvm-svn: 94970
2010-02-01 02:13:39 +00:00
Bruno Cardoso Lopes 1cb8b33d61 Fix stack size bug while using o32 abi
llvm-svn: 94969
2010-02-01 02:03:24 +00:00
Johnny Chen b3562f7cf6 For MVNr and MVNs, we need to set Inst{25} = 0 so as not to confuse the decoder.
llvm-svn: 94955
2010-01-31 11:22:28 +00:00
Evan Cheng b33dbc5019 Change TAILJMP's to be varargs and transfer implicit uses over from TCRETURN's. Otherwise the missing uses can make post-regalloc scheduling do bad things. This fixes 403.gcc.
llvm-svn: 94950
2010-01-31 07:28:44 +00:00
Evan Cheng 9adc6f46cf Fix a missing check from my last commit.
llvm-svn: 94949
2010-01-31 07:27:31 +00:00
Evan Cheng 7f62def0f9 Avoid recursive sibcall's.
llvm-svn: 94946
2010-01-31 06:44:49 +00:00
Eli Friedman 0de0b3677a Remove a completed item, add a couple new ones.
llvm-svn: 94945
2010-01-31 04:55:32 +00:00
Eli Friedman 690c7f4dfd Remove test which is no longer relevant.
llvm-svn: 94944
2010-01-31 04:40:45 +00:00
Eli Friedman a2cc2875fc Simplify/generalize the xor+add->sign-extend instcombine.
llvm-svn: 94943
2010-01-31 04:29:12 +00:00
Eli Friedman 37a8197b61 Add a small transform: transform -(X<<Y) to (-X<<Y) when the shift has a single
use and X is free to negate.

llvm-svn: 94941
2010-01-31 02:30:23 +00:00
Sean Callanan 9aeccadce4 Moved InstallLexer() from the X86-specific AsmLexer
to the TargetAsmLexer class so that clients can
actually use the TargetAsmLexer they get from a
Target.

llvm-svn: 94940
2010-01-31 02:28:18 +00:00
Evan Cheng d86d3fe0c3 Do not mark no-return calls tail calls. It'll screw up special calls like longjmp and it doesn't make much sense for performance reason. If my logic is faulty, please let me know.
llvm-svn: 94937
2010-01-31 00:59:31 +00:00
Bruno Cardoso Lopes 193e64c699 Fix PR6144. Reload GP before the emission of CALLSEQ_END to guarantee the right reload order
llvm-svn: 94915
2010-01-30 18:32:07 +00:00
Bruno Cardoso Lopes 7ee71912ed Fix mov.d out register by using the FFR register class directly
llvm-svn: 94914
2010-01-30 18:29:19 +00:00
Anton Korobeynikov 25df248382 Fix a gross typo: ARMv6+ may or may not support unaligned memory operations.
Even if they are suported by the core, they can be disabled
(this is just a configuration bit inside some register).

Allow unaligned memops on darwin and conservatively disallow them otherwise.

llvm-svn: 94889
2010-01-30 14:08:12 +00:00
Bob Wilson 56600a15ad Check alignment of loads when deciding whether it is safe to execute them
unconditionally.  Besides checking the offset, also check that the underlying
object is aligned as much as the load itself.

llvm-svn: 94875
2010-01-30 04:42:39 +00:00
Evan Cheng 70f714fdbe Allow more tailcall optimization: calls with inputs that are all passed in registers.
llvm-svn: 94873
2010-01-30 01:22:00 +00:00
Evan Cheng 2d5a75b42a Don't forget to transfer target flag when inserting a tailcall instruction.
llvm-svn: 94872
2010-01-30 01:16:15 +00:00
Devang Patel 160c92dd19 Emit declaration DIE for the class static variables.
llvm-svn: 94870
2010-01-30 01:08:30 +00:00
Daniel Dunbar 76e5d70c57 MC/X86 AsmParser: Handle absolute memory operands correctly. We were doing
something totally broken and parsing them as immediates, but the .td file also
had the wrong match class so things sortof worked. Except, that is, that we
would parse
  movl $0, %eax
as
  movl 0, %eax
Feel free to guess how well that worked.

llvm-svn: 94869
2010-01-30 01:02:48 +00:00
Daniel Dunbar cf18153de2 AsmMatcher: Create operand classes before use, apparently records aren't visited
in the order they were declared.

llvm-svn: 94868
2010-01-30 01:02:37 +00:00
Dale Johannesen e057403835 Fix a case where debug_value could affect codegen.
llvm-svn: 94866
2010-01-30 00:57:47 +00:00
Bob Wilson 4b71b6c179 Use more specific types to avoid casts. No functionality change.
llvm-svn: 94863
2010-01-30 00:41:10 +00:00
Bob Wilson 2e51136f80 Remove ARM-specific calling convention from this test. Target data is
needed for this test, but otherwise, there's nothing ARM-specific about
it and no need to specify the calling convention.

llvm-svn: 94862
2010-01-30 00:40:23 +00:00
Daniel Dunbar f05d00787a X86.td: Refactor to bring operands that use print_pcrel_imm together.
llvm-svn: 94861
2010-01-30 00:24:12 +00:00
Daniel Dunbar e9aa36c895 FileCheck: When looking for "possible matches", only compare against the prefix
line. Turns out edit_distance can be slow if the string we are scanning for
happens to be quite large.

llvm-svn: 94860
2010-01-30 00:24:06 +00:00
Daniel Dunbar a97adee959 AsmMatcher/X86: Separate out sublass for memory operands that have no segment
register, and use to cleanup a FIXME in X86AsmParser.cpp.

llvm-svn: 94859
2010-01-30 00:24:00 +00:00
Jakob Stoklund Olesen e27dc727e2 Keep iterating over all uses when meeting a phi node in AllUsesOfValueWillTrapIfNull().
This bug was exposed by my inliner cost changes in r94615, and caused failures
of lencod on most architectures when building with LTO.

This patch fixes lencod and 464.h264ref on x86-64 (and likely others).

llvm-svn: 94858
2010-01-29 23:54:14 +00:00
Daniel Dunbar 7f0421eebb MC/X86: Add a nice X86 assembler matcher test case from Kevin Enderby.
- This test case is auto generated, and has been verified to round-trip
   correctly through llvm-mc by checking the assembled .o file before and after
   piping through llvm-mc. It will be extended over time as the matcher grows
   support for more instructions.

llvm-svn: 94857
2010-01-29 23:32:40 +00:00
Johnny Chen 34a6afc68d Modified encoding bits specification for VFP instructions. In particular, the D
bit (Inst{22}) and the M bit (Inst{5}) should be left unspecified.  For binary
format instructions, Inst{6} and Inst{4} need to specified for proper decodings.

llvm-svn: 94855
2010-01-29 23:21:10 +00:00
Dan Gohman 5ded1424b0 Print a comment next to "materializable" global values, to distinguish
them from values that are not actually defined in the module.

llvm-svn: 94854
2010-01-29 23:12:36 +00:00
Evan Cheng 25217ffaed PPC is not ready for sibcall optimization.
llvm-svn: 94853
2010-01-29 23:05:56 +00:00
Bob Wilson 1b8453067b Preserve load alignment in instcombine transformations. I've been unable to
create a testcase where this matters.  The select+load transformation only
occurs when isSafeToLoadUnconditionally is true, and in those situations,
instcombine also changes the underlying objects to be aligned.  This seems
like a good idea regardless, and I've verified that it doesn't pessimize
the subsequent realignment.

llvm-svn: 94850
2010-01-29 22:39:21 +00:00
Dan Gohman 2bf486eb14 Minor code cleanup.
llvm-svn: 94848
2010-01-29 21:57:46 +00:00
Dan Gohman df22bbf76c Skip whitespace when looking for a potential intended match.
Before:

<stdin>:94:1: note: possible intended match here
 movsd 4096(%rsi), %xmm0
^

After:
<stdin>:94:2: note: possible intended match here
 movsd 4096(%rsi), %xmm0
 ^

llvm-svn: 94847
2010-01-29 21:55:16 +00:00
Dan Gohman 838fb09a75 Fix the position of the caret in the FileCheck error message.
Before:

test/CodeGen/X86/lsr-reuse.ll:52:34: error: expected string not found in input
; CHECK: movsd -2048(%rsi), %xmm0
                                 ^

After:

test/CodeGen/X86/lsr-reuse.ll:52:10: error: expected string not found in input
; CHECK: movsd -2048(%rsi), %xmm0
         ^

llvm-svn: 94846
2010-01-29 21:53:18 +00:00
Junjie Gu 6abe6cb8b5 Make sure the size is doubled (not 4x).
llvm-svn: 94845
2010-01-29 21:34:26 +00:00
Sean Callanan fd86e790cc Removed symbols from .exports that are not yet in
the library.

llvm-svn: 94844
2010-01-29 21:21:44 +00:00
Dale Johannesen ad00f03e86 Add assertion to humor the paranoid.
llvm-svn: 94843
2010-01-29 21:21:28 +00:00
Victor Hernandez 6b7f4216b6 We were not writing bitcode for function-local metadata whose operands have been erased (making it not have any more function-local operands)
llvm-svn: 94842
2010-01-29 21:19:19 +00:00