Commit Graph

35659 Commits

Author SHA1 Message Date
Chris Lattner ba2d0b89ff add an early out to ProcessBranchOnXOR to speed it up,
handle the case when we can infer an input to the xor
from all inputs that agree, instead of going into an
infinite loop.  Another part of PR6199

llvm-svn: 94321
2010-01-23 19:16:25 +00:00
Chris Lattner de5ab4860f fix a crash in jump threading, PR6119
llvm-svn: 94319
2010-01-23 18:56:07 +00:00
Chris Lattner 249da5cb73 implement a simple instcombine xform that has been in the
readme forever.

llvm-svn: 94318
2010-01-23 18:49:30 +00:00
Chris Lattner 97331ae668 add a note
llvm-svn: 94317
2010-01-23 18:42:37 +00:00
Chris Lattner 082da53f9a add some notes, making posix-memalign be nocapture would be an easy improvement.
llvm-svn: 94312
2010-01-23 17:59:23 +00:00
Bill Wendling 8cbc25d945 Remove the '-disable-scheduling' flag and replace it with the 'source' option of
the '-pre-RA-sched' flag. It actually makes more sense to do it this way. Also,
keep track of the SDNode ordering by default. Eventually, we would like to make
this ordering a way to break a "tie" in the scheduler. However, doing that now
breaks the "CodeGen/X86/abi-isel.ll" test for 32-bit Linux.

llvm-svn: 94308
2010-01-23 10:26:57 +00:00
Benjamin Kramer 14bb114c92 Respect operator precedence (and silence a gcc 4.3 warning).
llvm-svn: 94304
2010-01-23 09:54:23 +00:00
Chris Lattner b1301f7bce mcize lcomm, simplify .comm, extend both to support 64-bit sizes.
llvm-svn: 94299
2010-01-23 07:47:02 +00:00
Chris Lattner 76bdea3290 resolve a fixme: the "nonexecutable stack directive" is actually
a .section.  Switch to it with SwitchSection.

However, I think that this directive should be safe on any ELF target.
If so, we should hoist it up out of the X86 and SystemZ targets.

llvm-svn: 94298
2010-01-23 07:21:06 +00:00
Chris Lattner e244ff35d8 remove a dead call.
llvm-svn: 94297
2010-01-23 07:17:54 +00:00
Chris Lattner c55ea3fbcc use helpers.
llvm-svn: 94296
2010-01-23 07:00:21 +00:00
Chris Lattner 0bfd279b37 mcize visibility directives.
llvm-svn: 94295
2010-01-23 06:53:23 +00:00
Chris Lattner 685508cf49 move the various directive enums out of the MCStreamer class
into a new MCDirectives.h file.

llvm-svn: 94294
2010-01-23 06:39:22 +00:00
Chris Lattner d1acffc845 Change constantexpr global variable initializers to convert the constants
to MCExpr then emit them through MCStreamer with EmitValue.  I think all
global variable initializers are now going through mcstreamer.

llvm-svn: 94293
2010-01-23 06:17:14 +00:00
Eric Christopher c1451d764f Don't lower splat vector load to relative to the esp if the
stack may be misaligned.

Update test accordingly.

Patch by Evan Cheng!

llvm-svn: 94291
2010-01-23 06:02:43 +00:00
Chris Lattner 1deb09c28d mcstreamerize .no_dead_strip and .reference for static ctors/dtors.
llvm-svn: 94290
2010-01-23 05:51:36 +00:00
Eric Christopher ba7cd4c393 Reapply 94059 while fixing the calling convention setup
for strcpy.

llvm-svn: 94287
2010-01-23 05:29:06 +00:00
Chris Lattner b065f1bc31 remove unneeded directive set.
llvm-svn: 94286
2010-01-23 05:28:25 +00:00
Chris Lattner 5241cde324 use some helpers instead of duplicating logic.
llvm-svn: 94285
2010-01-23 05:26:25 +00:00
Chris Lattner 4225a7b987 mcize jump table and constant pool entry labels, .local on elf,
and some .weak directives.

llvm-svn: 94284
2010-01-23 05:19:23 +00:00
Chris Lattner 68eeb5ec9c emit .ascii and .asciz through MCStreamer.
llvm-svn: 94282
2010-01-23 04:54:10 +00:00
Chris Lattner 531732b23c simplify code a bit.
llvm-svn: 94281
2010-01-23 04:42:42 +00:00
Mon P Wang e04b4567f8 InstCombine should not fold sext/zext of a vector and a bitcast to a scalar to a sext/zext
llvm-svn: 94280
2010-01-23 04:35:57 +00:00
Ted Kremenek 4a1aa119a3 Update CMake build.
llvm-svn: 94278
2010-01-23 04:01:37 +00:00
Chris Lattner c3f23b84ea remove one form of EmitString, just use EmitBytes instead. We must
be careful to add a \0 at the end though, because EmitString didn't
do this.

llvm-svn: 94277
2010-01-23 03:11:46 +00:00
Sean Callanan 5051cb8010 Added the skeleton for the implementation of the X86
target-specific AsmLexer, and added the appropriate
registration calls.

llvm-svn: 94275
2010-01-23 02:43:15 +00:00
Sean Callanan 86c1181c3d Modified the register matcher function in AsmMatcher to
be static.  Also made it possible for clients to get it
and no other functions from ...GenAsmMatcher.inc by
defining REGISTERS_ONLY before including GenAsmMatcher.inc.
This sets the stage for target-specific lexers that can
identify registers and return AsmToken::Register as
appropriate.

llvm-svn: 94266
2010-01-23 00:40:33 +00:00
Devang Patel 0e44c51a3e Avoid using "Type" as the variable name.
llvm-svn: 94262
2010-01-23 00:26:28 +00:00
Victor Hernandez 5006e43faf In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store
llvm-svn: 94260
2010-01-23 00:17:34 +00:00
Chris Lattner ded9af63bb teach MCAsmStreamer::EmitBytes to use .ascii and .asciz
llvm-svn: 94259
2010-01-23 00:15:00 +00:00
Victor Hernandez 73b0f99f17 Make sure ValueFn starts off empty
llvm-svn: 94256
2010-01-23 00:03:28 +00:00
Evan Cheng c22893a3b7 Enable pre-regalloc scheduling load clustering by default.
llvm-svn: 94255
2010-01-22 23:49:45 +00:00
Evan Cheng 16cf934381 Be more conservative with clustering f32 / f64 loads.
llvm-svn: 94254
2010-01-22 23:49:11 +00:00
Chris Lattner 6f2d99df03 move "EOL" from asmprinter to dwarfprinter. It should eventually
be completely eliminated, but today is not that day.

llvm-svn: 94253
2010-01-22 23:47:11 +00:00
Chris Lattner 56940ab899 remove uses of EOL.
llvm-svn: 94252
2010-01-22 23:43:14 +00:00
Chris Lattner 7859b1c226 add a new EmitCFAByte method and use it.
llvm-svn: 94251
2010-01-22 23:40:08 +00:00
Chris Lattner fa82355f33 move uleb printing from asmprinter to dwarfprinter, mcize,
cleanup and eliminate a bunch more uses of "EOL".

llvm-svn: 94250
2010-01-22 23:18:42 +00:00
Jeffrey Yasskin 690818fc27 Make OProfile support compile again after r93630 removed
DebugLocTuple.  Also use an AssertingVH to ensure that MDNodes aren't
destroyed while the FilenameCache is using them.

llvm-svn: 94245
2010-01-22 23:04:39 +00:00
Chris Lattner 2303145081 move sleb printing out of asmprinter into dwarf printer, make clients
handle the comment better, MCize the non-.sleb case.

llvm-svn: 94244
2010-01-22 22:56:55 +00:00
Devang Patel ac277eb930 Remove MetadataBase class because it is not adding significant value.
llvm-svn: 94243
2010-01-22 22:52:10 +00:00
Dale Johannesen 7048797468 Ignore DEBUG_VALUE when building live intervals;
this makes the code work transparently the same
whether they're there or not.

llvm-svn: 94240
2010-01-22 22:38:21 +00:00
Chris Lattner edf96a4cc3 add a new DwarfPrinter::EmitEncodingByte method which handles
pretty printing encoding comments and eliminates redundancy on
the client side.  We now get pretty dwarf like this again:

        .byte   255                                         ## @LPStart Encoding = omit
        .byte   0                                           ## @TType Encoding = absptr
        .byte   0x28                                        ## @TType base offset
        .byte   3                                           ## Call site Encoding = udata4
        .byte   0x1a                                        ## Call site table size
...

llvm-svn: 94239
2010-01-22 22:38:16 +00:00
Chris Lattner 69bb026835 rename the dwarf class to DwarfPrinter. This matches the filename
and much more accurately describes what it is all about.

llvm-svn: 94233
2010-01-22 22:23:57 +00:00
Chris Lattner 00a6ae240e fix indentation
llvm-svn: 94232
2010-01-22 22:19:51 +00:00
Chris Lattner f5c834fce1 inline away the trivial AsmPrinter::EOL() method.
llvm-svn: 94230
2010-01-22 22:09:00 +00:00
Chris Lattner 13037516aa inline AsmPrinter::PrintHex into its two trivial callers.
llvm-svn: 94228
2010-01-22 21:57:56 +00:00
Chris Lattner 978e2f02a8 change this to be a static function instead of a method on asmprinter.
llvm-svn: 94227
2010-01-22 21:50:41 +00:00
Chris Lattner 00562558ab make the loop comment printer print out a much better structured
output.  An example:

        .align  4, 0x90
LBB1_5:                                                     ## %while.cond3
                                                            ##   Parent Loop BB1_1 Depth=1
                                                            ## =>  This Loop Header: Depth=2
                                                            ##       Child Loop BB1_8 Depth 3
                                                            ##       Child Loop BB1_6 Depth 3

llvm-svn: 94225
2010-01-22 21:43:28 +00:00
Chris Lattner 1386a88c95 Changes to fix buffering that I forgot to commit with previous patch.
llvm-svn: 94222
2010-01-22 21:16:10 +00:00
Chris Lattner e567c8e67f For blocks that are not loop headers, just print their loop depth and header BB.
For loop headers, print Inner loop along with the other stuff so it doesn't take
an extra line.  We now get stuff like this:

LBB1_4:                                                     ## %land.end
                                                            ##   in Loop: Header=BB1_1 Depth=1
        notb    %al
        testb   $1, %al
        jne     LBB1_8

and:

LBB1_6:                                                     ## %while.cond7
                                                            ## Inner Loop Header: Depth=3
                                                            ##     Inside Loop BB1_5 Depth 2
                                                            ##   Inside Loop BB1_1 Depth 1

which still isn't great for loop headers, but is much less verbose.

llvm-svn: 94221
2010-01-22 21:11:06 +00:00
Chris Lattner 23e43dbba1 reenable the label loop comments and switch them to use the formatted
comment emission stuff.  I'm going to rewrite this though because the
current output doesn't make sense.

llvm-svn: 94215
2010-01-22 21:00:45 +00:00
Daniel Dunbar 862023fcb2 Mark EH_RETURN64 as CodeGenOnly.
llvm-svn: 94205
2010-01-22 20:16:37 +00:00
Benjamin Kramer 3838dfbaea Another strncmp -> StringRef.startswith simplification.
llvm-svn: 94203
2010-01-22 20:00:21 +00:00
Chris Lattner a3eee3cb69 Convert some more random-comment-printing stuff to use
AddComment and GetCommentOS.  Add a blank line between globals
(even in non-verbose mode) to make the assembly more readable.

llvm-svn: 94202
2010-01-22 19:52:01 +00:00
Chris Lattner 8fa0e35f97 add a new MCAsmStreamer::GetCommentOS method to simplify stuff
that doesn't want to use twines.

llvm-svn: 94199
2010-01-22 19:17:48 +00:00
Bob Wilson 6c0c8d41b4 Revert 94059. It is breaking the MultiSource/Benchmarks/Prolangs-C/bison
test on ARM.

llvm-svn: 94198
2010-01-22 19:16:40 +00:00
Chris Lattner efcadd659d add missing break, PR6114, patch by M Wahab.
llvm-svn: 94197
2010-01-22 19:11:53 +00:00
Victor Hernandez 016b286758 Fix/strengthen verification of llvm.dbg.declare
llvm-svn: 94195
2010-01-22 19:06:12 +00:00
Victor Hernandez 5f8c8c034a Keep ignoring pointer-to-pointer bitcasts
llvm-svn: 94194
2010-01-22 19:05:05 +00:00
Chris Lattner e5f7214fac use both the Mangler and the CBE's mangler for identifiers,
this should fix a problem duncan saw handling symbols with '.' in them.

llvm-svn: 94192
2010-01-22 18:33:00 +00:00
Chris Lattner e1d8a319a1 rename addComment -> AddComment for consistency.
llvm-svn: 94190
2010-01-22 18:21:35 +00:00
Benjamin Kramer 94b993ed8a Simplify some uses of str(n)cmp with StringRef.
llvm-svn: 94189
2010-01-22 18:21:23 +00:00
Torok Edwin fbcd2c76d5 Fix TimeValue::now() on Unix.
TimeValue()::now().toEpochTime() is supposed to be the same as time(),
but it wasn't, because toEpoch subtracted PosixZeroTime, but now()
didn't add PosixZeroTime!
Add a unittest to check this works.

llvm-svn: 94178
2010-01-22 15:51:31 +00:00
Dan Gohman 6f08fa70c1 Revert r94066, which was the patch which added a Verifier pass after
LoopStrengthReduce, as it's causing too much trouble (even with the
old LoopStrengthReduce code).

llvm-svn: 94172
2010-01-22 10:48:28 +00:00
Chris Lattner cfa5ebc336 add comment support to the rest of the directives.
llvm-svn: 94168
2010-01-22 07:36:39 +00:00
Chris Lattner e649401824 stop using strtoll, it gives windows heartburn.
llvm-svn: 94167
2010-01-22 07:34:12 +00:00
Chris Lattner 38e9219f71 Add the ability for MCStreamer to emit comments on the same line as directives.
Switch over the asm-verbose comment for double values to use it.  We now get:

_x:
	.long	343597384                                   ## double 1.231200e+02
	.long	1079953326

For example, note that the comment is on the same line as the .long.  Woo.

llvm-svn: 94166
2010-01-22 07:29:22 +00:00
Chris Lattner 0522eb2160 pass "-fasm-verbose" into createAsmStreamer.
llvm-svn: 94165
2010-01-22 07:06:15 +00:00
Chris Lattner 7ba0661f27 Stop building RTTI information for *most* llvm libraries. Notable
missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.

llvm-svn: 94164
2010-01-22 06:49:46 +00:00
Chris Lattner 5264fce147 give PassNameParser a home.
llvm-svn: 94162
2010-01-22 06:29:25 +00:00
Chris Lattner aec33da793 add an out-of-line virtual method to CmpInst to give it a home.
llvm-svn: 94161
2010-01-22 06:25:37 +00:00
Chris Lattner c7a8eaf614 elimiante the dynamic_cast's from opt.
llvm-svn: 94160
2010-01-22 06:03:06 +00:00
Chris Lattner e0701f987f drop the pass name from the output.
llvm-svn: 94158
2010-01-22 05:52:51 +00:00
Chris Lattner 0b1c7235aa eliminate dynamic_cast from this file.
llvm-svn: 94157
2010-01-22 05:46:59 +00:00
Chris Lattner 9efd4fcceb eliminate a bunch more unneeded dynamic_cast's.
llvm-svn: 94156
2010-01-22 05:37:10 +00:00
Chris Lattner 2fa26e5fd0 eliminate a bunch of dynamic_cast's.
llvm-svn: 94155
2010-01-22 05:24:46 +00:00
Chris Lattner 21889d7337 eliminate a bunch of dynamic_cast's.
llvm-svn: 94154
2010-01-22 04:55:08 +00:00
Evan Cheng 9d92aaabf1 Teach pre-regalloc scheduler to schedule loads from nearby addresses. It may improve cache locality. This is controlled by -cluster-loads for now.
llvm-svn: 94148
2010-01-22 03:36:51 +00:00
Evan Cheng 4f026f3750 Add two target hooks to determine whether two loads are near and should be scheduled together.
llvm-svn: 94147
2010-01-22 03:34:51 +00:00
Chris Lattner 81e2b9a237 add new file
llvm-svn: 94132
2010-01-22 01:58:44 +00:00
Chris Lattner 5b0e01c54e move some files out of the llvm-mc tool into the MCParser library so
other tools can link it.

llvm-svn: 94131
2010-01-22 01:58:08 +00:00
Chris Lattner 9a184b368b forgot to svn add these, doh.
llvm-svn: 94130
2010-01-22 01:55:10 +00:00
Chris Lattner 00646cfbd4 create a new MCParser library and move some stuff into it.
llvm-svn: 94129
2010-01-22 01:44:57 +00:00
Chris Lattner 88c46d713b stub out a new TargetAsmLexer interface.
llvm-svn: 94125
2010-01-22 00:58:59 +00:00
Dan Gohman 045f81981a Revert LoopStrengthReduce.cpp to pre-r94061 for now.
llvm-svn: 94123
2010-01-22 00:46:49 +00:00
Jim Grosbach 267430f74d Fix PR5694. The CMN instructions set the flags differently from CMP, so they
cannot be directly interchanged for comparisons against negated values.
Disable the CMN instructions for the time being.

llvm-svn: 94119
2010-01-22 00:08:13 +00:00
Victor Hernandez 7b151e9f06 No need to look through bitcasts for DbgInfoIntrinsic
llvm-svn: 94114
2010-01-21 23:09:12 +00:00
Victor Hernandez ae4d949721 DbgInfoIntrinsic no longer appear in an instruction's use list
llvm-svn: 94113
2010-01-21 23:08:36 +00:00
Victor Hernandez 5f5abd598c No need to look through bitcasts for DbgInfoIntrinsic
llvm-svn: 94112
2010-01-21 23:07:15 +00:00
Victor Hernandez 1df65186d1 DbgInfoIntrinsics no longer appear in an instruction's use list; so clean up looking for them in use iterations and remove OnlyUsedByDbgInfoIntrinsics()
llvm-svn: 94111
2010-01-21 23:05:53 +00:00
Dan Gohman b1ee154b6b When inserting expressions for post-increment users which contain
loop-variant components, adds must be inserted after the increment.
Keep track of the increment position for this case, and insert
these adds in the correct location.

llvm-svn: 94110
2010-01-21 23:01:22 +00:00
Dan Gohman cb8d577eb2 Include IVUsers information in LSR's debug output.
llvm-svn: 94108
2010-01-21 22:46:32 +00:00
Dan Gohman 29916e023d Prune the search for candidate formulae if the number of register
operands exceeds the number of registers used in the initial
solution, as that wouldn't lead to a profitable solution anyway.

llvm-svn: 94107
2010-01-21 22:42:49 +00:00
Evan Cheng 32bfe1e837 Trim unneeded includes.
llvm-svn: 94105
2010-01-21 21:44:43 +00:00
Dan Gohman c903499ff8 Add a comment.
llvm-svn: 94104
2010-01-21 21:31:09 +00:00
Chris Lattner 24716b6c63 It turns out that this #include is needed because otherwise
ValueMapper.cpp ends up calling an out of line 
__ZNK4llvm12PATypeHolder3getEv, which is a template and llvm-config
determines arbitrarily to use the one in libipo.  This sucks, but
keeping the #include is a reasonable workaround.

llvm-svn: 94103
2010-01-21 21:29:25 +00:00
Chris Lattner 9889b4be04 unbreak the build, apparently without this transformutils starts depending on libipa?
llvm-svn: 94102
2010-01-21 21:20:51 +00:00
Chris Lattner e39837d5ee tidy up
llvm-svn: 94101
2010-01-21 21:05:54 +00:00
Chris Lattner 5522f05d32 tidy up
llvm-svn: 94100
2010-01-21 21:01:47 +00:00
Chris Lattner 43f2eecffa remove dead .erase.
llvm-svn: 94098
2010-01-21 20:43:39 +00:00
Jim Grosbach 143f7eb4c8 back this out for now. Growing Function is not good.
llvm-svn: 94097
2010-01-21 20:10:22 +00:00
Chris Lattner 3785c11cd4 fix a problem with a missing _, testcase pending.
llvm-svn: 94095
2010-01-21 19:58:19 +00:00
Victor Hernandez a9ad174b49 Don't need to include IntrinsicInst.h any more
llvm-svn: 94092
2010-01-21 19:33:59 +00:00
Victor Hernandez d089f4e10b No need to map NULL operands of metadata
llvm-svn: 94091
2010-01-21 19:26:20 +00:00
Dan Gohman 9b85ae26b1 Make the parser include the lower level error message in its own error
message, to be more informative.

llvm-svn: 94072
2010-01-21 10:15:06 +00:00
Dan Gohman 7c6759094a Avoid printing a spurious semicolon when there is no filename.
llvm-svn: 94071
2010-01-21 10:13:27 +00:00
Dan Gohman 60a9bf414e When re-using an existing cast for a user, it's still necessary to call
rememberInstruction so that future users of that user will be inserted
in the correct position. This fixes the Darwin selfhost.

llvm-svn: 94070
2010-01-21 10:08:42 +00:00
Nick Lewycky 9e26c1cc0c Fix a crasher trying to fold each element in a comparison between two vectors
if one of the vectors didn't have elements (such as undef). Fixes PR 6096.

Fix an issue in the constant folder where fcmp (<2 x %ty>, <2 x %ty>) would
have <2 x i1> type if constant folding was successful and i1 type if it wasn't.
This exposed a related issue in the bitcode reader.

llvm-svn: 94069
2010-01-21 07:03:21 +00:00
Dan Gohman 55a365e797 Run the verifier after LSR, to help catch use-before-def errors before
they reach codegen.

llvm-svn: 94066
2010-01-21 03:51:36 +00:00
Dan Gohman 51ad99d2c5 Re-implement the main strength-reduction portion of LoopStrengthReduction.
This new version is much more aggressive about doing "full" reduction in
cases where it reduces register pressure, and also more aggressive about
rewriting induction variables to count down (or up) to zero when doing so
reduces register pressure.

It currently uses fairly simplistic algorithms for finding reuse
opportunities, but it introduces a new framework allows it to combine
multiple strategies at once to form hybrid solutions, instead of doing
all full-reduction or all base+index.

llvm-svn: 94061
2010-01-21 02:09:26 +00:00
Eric Christopher fa863258d0 Add strcpy_chk -> strcpy support for "don't know" object size
answers.  This will update as object size checking gets better information.

llvm-svn: 94059
2010-01-21 01:04:38 +00:00
Evan Cheng 5d30f7c91c Fix a minor issue in x86 load / store folding table. movups does an unaligned load so it doesn't require 16-byte alignment.
llvm-svn: 94058
2010-01-21 00:55:14 +00:00
Jim Grosbach e029a6a5ed Make sure that landing pad entries in the EH call site table are in the proper
order for SjLj style exception handling.

llvm-svn: 94055
2010-01-21 00:43:30 +00:00
Chris Lattner 3c5bf71353 simplify this code.
llvm-svn: 94048
2010-01-20 23:30:28 +00:00
Jim Grosbach d7cf27a1d1 SjLj EH introduces can introduce an additional edge to a landing pad and pad
normalization needs to take this into account.

llvm-svn: 94046
2010-01-20 23:03:55 +00:00
Chris Lattner 32fb9564bc eliminate FnStubInfo, using MachineModuleInfoMachO instead.
this makes function stub emission determinstic.

llvm-svn: 94033
2010-01-20 21:36:48 +00:00
Dale Johannesen c5db599813 make findDebugLoc a class method
llvm-svn: 94032
2010-01-20 21:36:02 +00:00
Chris Lattner 2f7c279257 split function stub printing out to its own function,
no functionality change.

llvm-svn: 94030
2010-01-20 21:19:44 +00:00
Chris Lattner 1ff4794cbb eliminate the GVStubs and HiddenGVStubs maps, and use
MachineModuleInfoMachO instead.  This eliminates two sources
of nondeterministic output in the ppc backend, but function
stubs are still bad.

llvm-svn: 94029
2010-01-20 21:16:14 +00:00
Chris Lattner 1edfeb2c46 don't forget to initialize an instance variable!
llvm-svn: 94021
2010-01-20 20:48:59 +00:00
David Greene 0985160c54 When XDEBUG is enabled, check for SelectionDAG cycles at some key
points.  This will help us find future problems like the one
described in PR6019.

llvm-svn: 94019
2010-01-20 20:13:31 +00:00
Chris Lattner da363d9af8 adopt getAdjustedAnalysisPointer in a few more passes.
llvm-svn: 94018
2010-01-20 20:09:02 +00:00
Chris Lattner 3b03327c14 adopt getAdjustedAnalysisPointer in two more passes.
llvm-svn: 94017
2010-01-20 19:53:32 +00:00
Chris Lattner 397af34e6f adopt getAdjustedAnalysisPointer in BasicCallGraph.
llvm-svn: 94015
2010-01-20 19:51:46 +00:00
Chris Lattner af362f014d add some new methods to adjust this pointers. Not used yet.
llvm-svn: 94013
2010-01-20 19:26:14 +00:00
Chris Lattner c47ece59a8 don't send null pointers through the constantexpr codepath unneededly.
llvm-svn: 94010
2010-01-20 17:57:50 +00:00
Chris Lattner 6a7939243f reduce redundant are's.
llvm-svn: 94008
2010-01-20 17:53:51 +00:00
Jakob Stoklund Olesen 8a19d3c96c Move per-function inline threshold calculation to a method.
No functional change except the forgotten test for
InlineLimit.getNumOccurrences() == 0 in the CurrentThreshold2 calculation.

llvm-svn: 94007
2010-01-20 17:51:28 +00:00
Chris Lattner 9fc980403e use getGlobalDirective(), don't hardcode .globl. PR6093
llvm-svn: 94006
2010-01-20 17:50:30 +00:00
David Greene 35dca86659 Fix an infinite recursion problem. dbgs() should return errs() in
release mode.

llvm-svn: 94001
2010-01-20 15:27:19 +00:00
Chris Lattner 71601e8b3b eliminate some uses of AsmPrinter::EmitIntXXX
llvm-svn: 93996
2010-01-20 07:41:15 +00:00
Victor Hernandez ab62196c9d Backout r93990
llvm-svn: 93995
2010-01-20 07:37:49 +00:00
Chris Lattner db42c8d23d inline and radically simplify printDataDirective. It will eventually
go completely away.

llvm-svn: 93994
2010-01-20 07:33:29 +00:00
Chris Lattner f8dcf784a7 emit basic block labels with mcstreamer.
llvm-svn: 93993
2010-01-20 07:24:05 +00:00
Chris Lattner 4c8b1824f0 emit integer and fp zeros as (e.g.) .byte 0 instead of .space 1,
for tidiness.

llvm-svn: 93992
2010-01-20 07:19:19 +00:00
Chris Lattner 03cb2a3035 signficant cleanups to EmitGlobalConstant (including streamerization
of int initializers), change some methods to be static functions,
use raw_ostream::write_hex instead of a smallstring dance with 
APValue::toStringUnsigned(S, 16).

llvm-svn: 93991
2010-01-20 07:11:32 +00:00
Victor Hernandez 6c50c06e70 Fix/strengthen verification of llvm.dbg.declare
llvm-svn: 93990
2010-01-20 06:57:02 +00:00
Victor Hernandez f2462407ee Switch Elts from vector to SmallVector
llvm-svn: 93989
2010-01-20 06:56:16 +00:00
Chris Lattner 37020ccf48 switch ConstantFP emission to use MCStreamer, significantly
simplifying the code.

llvm-svn: 93988
2010-01-20 06:53:37 +00:00
Chris Lattner 45eeffcc2a make mcasmstreamer handle expanding 8 byte integer constants to
4-byte constants if .quad isn't supported.  Switch a bunch of
methods used by the dwarf writer to use OutStreamer.EmitIntValue.

llvm-svn: 93987
2010-01-20 06:45:39 +00:00
Chris Lattner 38caaf14c1 give createAsmStreamer an 'isLittleEndian' argument.
llvm-svn: 93986
2010-01-20 06:39:07 +00:00
Chris Lattner 2b4364fe03 revert 93934, removing the MCAsmInfo endianness bit. I can't
stomache MCAsmInfo having this, and I found a better solution to
this layering issue.

llvm-svn: 93985
2010-01-20 06:34:14 +00:00
Victor Hernandez d0b2ff9b7a Fix if/else brackets; getFunctionForValue() is to be called for non-metadata values
llvm-svn: 93984
2010-01-20 06:22:33 +00:00
Chandler Carruth d6514b1e13 Fix the conditions to unambiguously show the logic they represent. This is the
logic enforced in the test case as well, so hopefully it is correct. Please
review Victor.

llvm-svn: 93980
2010-01-20 06:01:02 +00:00
Victor Hernandez 5fa88d4e30 Map operands of all function-local metadata, not just metadata passed to llvm.dbg.declare intrinsics
llvm-svn: 93979
2010-01-20 05:49:59 +00:00
Victor Hernandez 20425abea4 Avoid unnecessary Elts array
llvm-svn: 93978
2010-01-20 05:44:11 +00:00
Victor Hernandez e5f2af7594 Refactor common parts of MDNode::getFunction() and assertLocalFunction() into getFunctionForValue()
llvm-svn: 93977
2010-01-20 04:45:57 +00:00
Devang Patel 7771b7c621 If a instruction belongs to another function (and not current function) as per debug info attached with the instruction then ignore the dangling lexical scope of this instruction. Such scopes are unreachable.
llvm-svn: 93967
2010-01-20 02:05:23 +00:00
David Greene 3b2a68ceb8 Add some asserts to check SelectionDAG problems earlier.
llvm-svn: 93960
2010-01-20 00:59:23 +00:00
Dale Johannesen 91970b4ea2 Move findDebugLoc somewhere more central. Fix
more cases where debug declarations affect
debug line info.

llvm-svn: 93953
2010-01-20 00:19:24 +00:00
Dan Gohman 954f49014d Fold (add x, shl(0 - y, n)) -> sub(x, shl(y, n)), to simplify some code
that SCEVExpander can produce when running on behalf of LSR.

llvm-svn: 93949
2010-01-19 23:30:49 +00:00
Bob Wilson 6a4491b8c7 Wrap some comments to 80 columns.
llvm-svn: 93940
2010-01-19 22:56:26 +00:00
Dale Johannesen aa6655557b Fix a case where debug_value was perturbing the
line number info.

llvm-svn: 93937
2010-01-19 22:50:05 +00:00
Dan Gohman ca19445d08 When doing address-mode sinking, expand the base register first, rather
than the scaled register. This makes it more likely that subsequent
AddrModeMatcher queries will match the new address the same way as the
old, instead of accidentally matching what had been the base register
as the new scaled register, and then failing to match the scaled register.
This fixes some problems with address-mode sinking multiple muls into a
block, which will be a lot more common with some upcoming
LoopStrengthReduction changes.

llvm-svn: 93935
2010-01-19 22:45:06 +00:00
Chris Lattner 003b5c8472 give MCAsmInfo a 'has little endian' bit. This is unfortunate, but
I really want clients of the streamer to be able to say "emit this
64-bit integer" and have it get broken down right by the streamer.

I may change this in the future, we'll see how it works out.

llvm-svn: 93934
2010-01-19 22:42:28 +00:00
Dan Gohman 8d67d2f5f8 Add a comment and tidy up some whitespace.
llvm-svn: 93932
2010-01-19 22:27:22 +00:00
Dan Gohman 510bffca45 Fix a typo and an 80-column violation in comments.
llvm-svn: 93931
2010-01-19 22:26:02 +00:00
Dan Gohman f86d904b7d Give ScalarEvolution access to the DominatorTree. It'll need this
to make more intellegent AddRec folding decisions.

llvm-svn: 93930
2010-01-19 22:21:27 +00:00
Chris Lattner eaef5e111d simplify the rest of fp constant printing.
llvm-svn: 93929
2010-01-19 22:16:33 +00:00
Chris Lattner c70daf316e simplify the code for printing x86 long double, don't do work
for -fverbose-asm unless it's on.

llvm-svn: 93926
2010-01-19 22:11:05 +00:00
Jakob Stoklund Olesen e8800b8d7c Identify predicate and optional-def operands when printing machine
instructions.

llvm-svn: 93925
2010-01-19 22:08:34 +00:00
Chris Lattner dc50e5d128 add a new EmitIntValue method that MCStreamer impls can optionally define
and that clients can use.

llvm-svn: 93923
2010-01-19 22:03:38 +00:00
Dan Gohman d693472821 Add a new helper function to IVUsers for returning the "canonical"
form of an expression. This is the expression without the
post-increment adjustment made, which is useful in determining
which registers will be used by the expansion.

llvm-svn: 93921
2010-01-19 21:55:32 +00:00
Chris Lattner ecaf0dcbc6 eliminate AsmPrinter::EmitZeros: just use MCStreamer directly.
llvm-svn: 93918
2010-01-19 21:51:22 +00:00
Sean Callanan 936b0d3144 Promoted the getTok() method to MCAsmParser so that
the two token accessor functions are declared consistently.
Modified the clients of MCAsmParser to reflect this change.

llvm-svn: 93916
2010-01-19 21:44:56 +00:00
Xerxes Ranby 17dc3a0a94 Stubs for getHostCPUFeatures API. This implements part of PR5389.
llvm-svn: 93913
2010-01-19 21:26:05 +00:00
Jakob Stoklund Olesen bdc17f6840 Remove predicates when changing an add into an unpredicable mov.
Since the mov is executed unconditionally, make sure that the add didn't have
any predicate.

llvm-svn: 93909
2010-01-19 21:08:28 +00:00
Benjamin Kramer f007697c56 Update CMake list.
llvm-svn: 93905
2010-01-19 20:59:04 +00:00
David Greene f1c7388b29 Add some new debugging APIs to print out "raw" SelectionDAGs to make
understanding CannotYTetSelect and other errors easier.

llvm-svn: 93901
2010-01-19 20:37:34 +00:00
Sean Callanan a83fd7d52c Propagated the parser-side Lex function's declaration to
MCAsmParser, and changed the target-specific AsmParsers
to use it.

llvm-svn: 93900
2010-01-19 20:27:46 +00:00
Bruno Cardoso Lopes e1afaf5c22 Fix a bug introduced on r92564 where the name "Node" was already
in use by Mips.

llvm-svn: 93897
2010-01-19 19:57:07 +00:00
Chris Lattner c35681b298 Generalize mcasmstreamer data emission APIs to take an address space
identifier.  There is no way to work around it.

llvm-svn: 93896
2010-01-19 19:46:13 +00:00
Evan Cheng bf43525a29 Do not extend extension results beyond the use of a PHI instruction at the start of a use block. A PHI use is expected to kill its source values.
llvm-svn: 93895
2010-01-19 19:45:51 +00:00
Chris Lattner fefcb1531c refactor code to be static functions instead of methods on AsmPrinter.
This fixes some bugs handling address spaces.

llvm-svn: 93891
2010-01-19 19:10:44 +00:00
Chris Lattner ed89f60f5e mcstreamerize AsmPrinter::EmitZeros, at least when emitting to the
default address space.

llvm-svn: 93890
2010-01-19 18:58:52 +00:00
Chris Lattner 4340cb3246 add an MCAsmStreamer::EmitFill specialization of EmitFill that
emits one directive instead of N.  Not doing this would be a
significant regression on the # bytes generated by .fill.

llvm-svn: 93889
2010-01-19 18:52:28 +00:00
Chris Lattner 0c65fd4902 add a "MCStreamer::EmitFill" method, and move the default implementation
(which just iteratively emits bytes) to MCStreamer.

llvm-svn: 93888
2010-01-19 18:45:47 +00:00
Chris Lattner 9c31b0c695 remove MAI::ZeroDirectiveSuffix, which is only used by MASM,
which we don't support anymore.

llvm-svn: 93886
2010-01-19 18:37:01 +00:00
Jim Grosbach 04770f2aa1 For aligned load/store instructions, it's only required to know whether a
function can support dynamic stack realignment. That's a much easier question
to answer at instruction selection stage than whether the function actually
will have dynamic alignment prologue. This allows the removal of the
stack alignment heuristic pass, and improves code quality for cases where
the heuristic would result in dynamic alignment code being generated when
it was not strictly necessary.

llvm-svn: 93885
2010-01-19 18:31:11 +00:00
Chris Lattner 18f49ce2d3 optimize ~(~X >>s Y) --> (X >>s Y), patch by Edmund Grimley
Evans!

llvm-svn: 93884
2010-01-19 18:16:19 +00:00
Bruno Cardoso Lopes 4f34432d09 On pic function calls some arguments were marked dead and
the instruction to load those args removed. This fix PR6071

llvm-svn: 93880
2010-01-19 17:00:43 +00:00
Bruno Cardoso Lopes c9818a77cb load f64 +0.0 in a cleaner way. This fix part of PR5445
llvm-svn: 93876
2010-01-19 12:53:04 +00:00
Bruno Cardoso Lopes 2f5c8e3495 Fix return registers for mips eabi
llvm-svn: 93875
2010-01-19 12:37:35 +00:00
Chris Lattner 3024e9813e mcstreamer'ize the rest of EmitGlobalVariable that is used on
darwin.  The next big piece to get global variables streamerized
is EmitGlobalConstant.

llvm-svn: 93870
2010-01-19 06:41:24 +00:00
Chris Lattner cd2915e467 stop using the .lcomm pseudoop on darwin, instead, directly use the
.zerofill directive.  Streamerize its generation.

llvm-svn: 93868
2010-01-19 06:25:51 +00:00
Devang Patel 018b29b039 MDNodes are not expected to disappear or replaced by another MDNode, so there is no need to pay the cost of WeakVH and ValueMaps.
llvm-svn: 93865
2010-01-19 06:19:05 +00:00
Devang Patel 1083b5fc3f Avoid including DebugInfo.h in AsmPrinter.h
llvm-svn: 93864
2010-01-19 06:09:04 +00:00
Chris Lattner 00fa4b67e6 zap the ARM version of PrintGlobalVariable, which I missed.
llvm-svn: 93863
2010-01-19 06:08:15 +00:00
Chris Lattner 95b98959b0 mc'ize some stuff, don't comment out .lcomm directive in -fverbose-asm mode.
llvm-svn: 93860
2010-01-19 06:01:04 +00:00
Chris Lattner 282466abf7 factor this code better.
llvm-svn: 93859
2010-01-19 05:51:42 +00:00
Chris Lattner c7a062d187 Now that we have everything nicely factored (e.g. asmprinter is not
doing global variable classification anymore) and hookized, sink almost
all target targets global variable emission code into AsmPrinter and out
of each target.

Some notes:

1. PIC16 does completely custom and crazy stuff, so it is not changed.
2. XCore has some custom handling for extra directives.  I'll look at it next.
3. This switches linux/ppc to use .globl instead of .global.  If .globl is
   actually wrong, let me know and I'll fix it.
4. This makes linux/ppc get a lot of random cases right which were obviously
   wrong before, it is probably now a bit healthier.
5. Blackfin will probably start getting .comm and other things that it didn't
   before.  If this is undesirable, it should explicitly opt out of these
   things by clearing the relevant fields of MCAsmInfo.

This leads to a nice diffstat:
 14 files changed, 127 insertions(+), 830 deletions(-)

llvm-svn: 93858
2010-01-19 05:38:33 +00:00
Chris Lattner f75fe9e34c use %object like other elf targets, gas accepts either.
llvm-svn: 93857
2010-01-19 05:25:38 +00:00
Chris Lattner 9d749a2fc4 simplify the mips target to print .size and .type for c strings
just like all other elf targets.  Bruno, if this isn't right, please
let me know + why :)

llvm-svn: 93856
2010-01-19 05:23:59 +00:00
Chris Lattner b1f2934fc7 hookize the cygwin ".linkonce" directive.
llvm-svn: 93855
2010-01-19 05:08:13 +00:00
Chris Lattner 826d77fb07 more cleanups. Emit the .local directive even on cygwin/mingw.
I'm not sure that this is correct, but it causes no test failures,
and just emitting a .comm without protecting its linkage somehow
is surely not right.

llvm-svn: 93854
2010-01-19 04:59:55 +00:00
Chris Lattner f8a128a1a8 some cleanups
llvm-svn: 93853
2010-01-19 04:53:18 +00:00
Chris Lattner dccbb28bca add a bool for whether .lcomm takes an alignment instead of basing this on "isdarwin".
llvm-svn: 93852
2010-01-19 04:48:20 +00:00
Chris Lattner 6a160517a0 hoist handling of external globals and special globals up to common code.
This makes a similar code dead in all the other targets, I'll clean it up
in a bit.

This also moves handling of lcomm up before acquisition of a section,
since lcomm never needs a section.

llvm-svn: 93851
2010-01-19 04:39:15 +00:00
Chris Lattner e9d28b19cf move production of .reference directives for static ctor/dtor list on
darwin into common code.

llvm-svn: 93849
2010-01-19 04:34:02 +00:00
Bob Wilson 58d59fe394 Fix a crash in scalarrepl for memcpy/memmove where the source and destination
are the same.  I had already fixed a similar problem where the source and
destination were different bitcasts derived from the same alloca, but the
previous fix still did not handle the case where both operands are exactly
the same value.  Radar 7552893.

llvm-svn: 93848
2010-01-19 04:32:48 +00:00