1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-28 06:22:51 +01:00
Commit Graph

11580 Commits

Author SHA1 Message Date
Bill Wendling
50a1812023 Add MC encodings for some Thumb instructions. Test for a few of them. The "bx
lr" instruction cannot be tested just yet. It requires matching a "condition
code", but adding one of those makes things go south quickly...

llvm-svn: 119774
2010-11-19 01:33:10 +00:00
Bill Wendling
ef43273c51 Add support for parsing the writeback ("!") token.
llvm-svn: 119761
2010-11-18 23:43:05 +00:00
Owen Anderson
c0d5d13769 More tests.
llvm-svn: 119756
2010-11-18 23:30:10 +00:00
Owen Anderson
ca14474db4 Fix encodings for pkhbt, and fix some tests where I accidentally tested ARM mode instead of Thumb2.
llvm-svn: 119755
2010-11-18 23:29:56 +00:00
Tanya Lattner
9cac0edef3 Fix bug in DAGCombiner for ARM that was trying to do a ShiftCombine on illegal types (vector should be split first).
Added test case.

llvm-svn: 119749
2010-11-18 22:06:46 +00:00
Owen Anderson
25dc3a4fe6 More Thumb2 encodings.
llvm-svn: 119737
2010-11-18 21:15:19 +00:00
Owen Anderson
eec8c82d32 Fill out the set of Thumb2 multiplication operator encodings.
llvm-svn: 119733
2010-11-18 20:32:18 +00:00
Duncan Sands
a61bc1a41a The DAGCombiner was threading select over pairs of extending loads even
if the extension types were not the same.  The result was that if you
fed a select with sext and zext loads, as in the testcase, then it
would get turned into a zext (or sext) of the select, which is wrong
in the cases when it should have been an sext (resp. zext).  Reported
and diagnosed by Sebastien Deldon.

llvm-svn: 119728
2010-11-18 20:05:18 +00:00
Duncan Sands
4562d3b919 Factor code for testing whether replacing one value with another
preserves LCSSA form out of ScalarEvolution and into the LoopInfo
class.  Use it to check that SimplifyInstruction simplifications
are not breaking LCSSA form.  Fixes PR8622.

llvm-svn: 119727
2010-11-18 19:59:41 +00:00
Eric Christopher
bc6a51d63f Rewrite stack callee saved spills and restores to use push/pop instructions.
Remove movePastCSLoadStoreOps and associated code for simple pointer
increments. Update routines that depended upon other opcodes for save/restore.

Adjust all testcases accordingly.

llvm-svn: 119725
2010-11-18 19:40:05 +00:00
Owen Anderson
c2db966e5e Completely rework the datastructure GVN uses to represent the value number to leader mapping. Previously,
this was a tree of hashtables, and a query recursed into the table for the immediate dominator ad infinitum
if the initial lookup failed.  This led to really bad performance on tall, narrow CFGs.

We can instead replace it with what is conceptually a multimap of value numbers to leaders (actually
represented by a hashtable with a list of Value*'s as the value type), and then
determine which leader from that set to use very cheaply thanks to the DFS numberings maintained by
DominatorTree.  Because there are typically few duplicates of a given value, this scan tends to be
quite fast.  Additionally, we use a custom linked list and BumpPtr allocation to avoid any unnecessary
allocation in representing the value-side of the multimap.

This change brings with it a 15% (!) improvement in the total running time of GVN on 403.gcc, which I
think is pretty good considering that includes all the "real work" being done by MemDep as well.

The one downside to this approach is that we can no longer use GVN to perform simple conditional progation,
but that seems like an acceptable loss since we now have LVI and CorrelatedValuePropagation to pick up
the slack.  If you see conditional propagation that's not happening, please file bugs against LVI or CVP.

llvm-svn: 119714
2010-11-18 18:32:40 +00:00
Dan Gohman
ec75e876ab Add support for PHI-translating sext, zext, and trunc instructions,
enabling more PRE. PR8586.

llvm-svn: 119704
2010-11-18 17:05:13 +00:00
Chris Lattner
c752718881 remove a pointless restriction from memcpyopt. It was
refusing to optimize two memcpy's like this:

copy A <- B
copy C <- A

if it couldn't prove that noalias(B,C).  We can eliminate
the copy by producing a memmove instead of memcpy.

llvm-svn: 119694
2010-11-18 08:00:57 +00:00
Chris Lattner
1000d06bee filecheckize, this is still not optimal, see PR8643
llvm-svn: 119693
2010-11-18 07:49:32 +00:00
Chris Lattner
6048697a30 allow eliminating an alloca that is just copied from an constant global
if it is passed as a byval argument.  The byval argument will just be a
read, so it is safe to read from the original global instead.  This allows
us to promote away the %agg.tmp alloca in PR8582

llvm-svn: 119686
2010-11-18 06:41:51 +00:00
Chris Lattner
791e914b1b enhance the "alloca is just a memcpy from constant global"
to ignore calls that obviously can't modify the alloca
because they are readonly/readnone.

llvm-svn: 119683
2010-11-18 06:26:49 +00:00
Chris Lattner
44ccd4643d fix a small oversight in the "eliminate memcpy from constant global"
optimization.  If the alloca that is "memcpy'd from constant" also has
a memcpy from *it*, ignore it: it is a load.  We now optimize the testcase to:

define void @test2() {
  %B = alloca %T
  %a = bitcast %T* @G to i8*
  %b = bitcast %T* %B to i8*
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %a, i64 124, i32 4, i1 false)
  call void @bar(i8* %b)
  ret void
}

previously we would generate:

define void @test() {
  %B = alloca %T
  %b = bitcast %T* %B to i8*
  %G.0 = getelementptr inbounds %T* @G, i32 0, i32 0
  %tmp3 = load i8* %G.0, align 4
  %G.1 = getelementptr inbounds %T* @G, i32 0, i32 1
  %G.15 = bitcast [123 x i8]* %G.1 to i8*
  %1 = bitcast [123 x i8]* %G.1 to i984*
  %srcval = load i984* %1, align 1
  %B.0 = getelementptr inbounds %T* %B, i32 0, i32 0
  store i8 %tmp3, i8* %B.0, align 4
  %B.1 = getelementptr inbounds %T* %B, i32 0, i32 1
  %B.12 = bitcast [123 x i8]* %B.1 to i8*
  %2 = bitcast [123 x i8]* %B.1 to i984*
  store i984 %srcval, i984* %2, align 1
  call void @bar(i8* %b)
  ret void
}

llvm-svn: 119682
2010-11-18 06:20:47 +00:00
Chris Lattner
c1e63bb987 filecheckize
llvm-svn: 119681
2010-11-18 06:16:43 +00:00
Rafael Espindola
93a07b464e Change CodeGen to use .loc directives. This produces a lot more readable output
and testing is easier.  A good example is the unknown-location.ll test that
now can just look for ".loc 1 0 0".  We also don't use a DW_LNE_set_address for
every address change anymore.

llvm-svn: 119613
2010-11-18 02:04:25 +00:00
Dale Johannesen
06f479d543 Do not throw away alignment when generating the DAG for
memset; we may need it to decide between MOVAPS and MOVUPS
later.  Adjust a test that was looking for wrong code.
PR 3866 / 8675131.

llvm-svn: 119605
2010-11-18 01:35:23 +00:00
Owen Anderson
b7970b2c6a Try again at providing Thumb2 encodings for basic multiplication operators.
llvm-svn: 119601
2010-11-18 01:08:42 +00:00
John Thompson
8c52bd2004 Fixed to use input redirection for source - to eliminate .s output.
llvm-svn: 119599
2010-11-18 00:50:20 +00:00
Owen Anderson
e8906ba112 Revert r119593 while I figure out my testing disagrees with the buildbot.
llvm-svn: 119597
2010-11-18 00:42:51 +00:00
Owen Anderson
47a64ab90c Provide correct Thumb2 encodings for basic multiplication operators.
llvm-svn: 119593
2010-11-18 00:19:10 +00:00
John Thompson
b33f935bc3 Bug 8621 fix - pointer cast stripped from inline asm constraint argument.
llvm-svn: 119590
2010-11-17 23:58:47 +00:00
Wesley Peck
890a8357af Now that the MBlaze backend is in its own directory, split the test cases into multiple files for different types of instructions.
llvm-svn: 119580
2010-11-17 22:54:43 +00:00
Owen Anderson
ea6ac4cdff Second attempt at correct encodings for Thumb2 bitfield instructions.
llvm-svn: 119575
2010-11-17 22:16:31 +00:00
Dale Johannesen
a87210e350 These tests are looking for library function names that
appear to differ on Linux.  Try to make them pass on Linux.
Would be good for a Linux person to review this.

llvm-svn: 119572
2010-11-17 21:57:32 +00:00
Bob Wilson
a217a6e40b Change ARMGlobalMerge to keep BSS globals in separate pools.
This completes the fixes for Radar 8673120.

llvm-svn: 119566
2010-11-17 21:25:39 +00:00
Bob Wilson
819660b716 Fix ARMGlobalMerge pass to check if globals are entirely within range.
It is generally not sufficient to check if the starting offset is in range
of the maximum offset that can be efficiently used for the target.

llvm-svn: 119565
2010-11-17 21:25:36 +00:00
Bob Wilson
49bf8702f0 Change the symbol for merged globals from "merged" to "_MergedGlobals".
This makes it more clear that the symbol is an internal, compiler-generated
name and gives a little more description about its contents.

llvm-svn: 119564
2010-11-17 21:25:33 +00:00
Bob Wilson
fd7399b6a6 Fix the ARMGlobalMerge pass to look at variable sizes instead of pointer sizes.
It was mistakenly looking at the pointer type when checking for the size of
global variables.  This is a partial fix for Radar 8673120.

llvm-svn: 119563
2010-11-17 21:25:27 +00:00
Owen Anderson
2adebbb603 Revert r119551, which broke buildbots.
llvm-svn: 119555
2010-11-17 20:48:51 +00:00
Owen Anderson
c7750780fc Provide Thumb2 encodings for bitfield instructions.
llvm-svn: 119551
2010-11-17 20:35:29 +00:00
Evan Cheng
ce610bd6b3 Remove ARM isel hacks that fold large immediates into a pair of add, sub, and,
and xor. The 32-bit move immediates can be hoisted out of loops by machine
LICM but the isel hacks were preventing them.

Instead, let peephole optimization pass recognize registers that are defined by
immediates and the ARM target hook will fold the immediates in.

Other changes include 1) do not fold and / xor into cmp to isel TST / TEQ
instructions if there are multiple uses. This happens when the 'and' is live
out, machine sink would have sinked the computation and that ends up pessimizing
code. The peephole pass would recognize situations where the 'and' can be
toggled to define CPSR and eliminate the comparison anyway.

2) Move peephole pass to after machine LICM, sink, and CSE to avoid blocking
important optimizations.

rdar://8663787, rdar://8241368

llvm-svn: 119548
2010-11-17 20:13:28 +00:00
Owen Anderson
d88cfe5453 More miscellaneous Thumb2 encodings.
llvm-svn: 119546
2010-11-17 19:57:38 +00:00
Benjamin Kramer
1b330efb46 InstCombine: Add a missing irem identity (X % X -> 0).
llvm-svn: 119538
2010-11-17 19:11:46 +00:00
Rafael Espindola
b6fcca35a2 Add support for .int.
llvm-svn: 119512
2010-11-17 16:24:40 +00:00
Rafael Espindola
9186952072 Add support for .2byte, .4byte and .8byte.
Fixes PR8631.

llvm-svn: 119511
2010-11-17 16:15:42 +00:00
Che-Liang Chiou
f8ffd59ccb Add simple arithmetics and %type directive for PTX
llvm-svn: 119485
2010-11-17 08:08:49 +00:00
Bill Wendling
f0a1acba8c Proper encoding for VLDM and VSTM instructions. The register lists for these
instructions have to distinguish between lists of single- and double-precision
registers in order for the ASM matcher to do a proper job. In all other
respects, a list of single- or double-precision registers are the same as a list
of GPR registers.

llvm-svn: 119460
2010-11-17 04:32:08 +00:00
Dale Johannesen
0cd940f72b Test for llvm-gcc patch 119392.
llvm-svn: 119393
2010-11-16 21:57:15 +00:00
Duncan Sands
825c7d7f79 In which I discover the existence of loops. Threading an operation
over a phi node by applying it to each operand may be wrong if the
operation and the phi node are mutually interdependent (the testcase
has a simple example of this).  So only do this transform if it would
be correct to perform the operation in each predecessor of the block
containing the phi, i.e. if the other operands all dominate the phi.
This should fix the FFMPEG snow.c regression reported by İsmail Dönmez.

llvm-svn: 119347
2010-11-16 12:16:38 +00:00
Rafael Espindola
47e7ef8c8f A bit more of gnu as compatibility when handling relocations with aliases.
llvm-svn: 119328
2010-11-16 04:11:46 +00:00
Bill Wendling
e15bf6b98d Test encodings for LDM and STM.
llvm-svn: 119315
2010-11-16 01:38:20 +00:00
Jakob Stoklund Olesen
ea79975a68 Fix PR8612 in the standard spiller, take two.
The live range of a register defined by an early clobber starts at the use slot,
not the def slot.

Except when it is an early clobber tied to a use operand. Then it starts at the
def slot like a standard def.

llvm-svn: 119305
2010-11-16 00:40:59 +00:00
Owen Anderson
686fae59e6 Add Thumb2 encodings for mov and friends.
llvm-svn: 119295
2010-11-16 00:29:56 +00:00
Rafael Espindola
53a8ae85b7 Change the 11 byte nop to be a single instruction.
llvm-svn: 119286
2010-11-15 23:10:30 +00:00
Jakob Stoklund Olesen
465c07cc66 Revert "Fix PR8612 in the standard spiller as well."
This reverts r119183 which borke the buildbots.

llvm-svn: 119270
2010-11-15 21:51:51 +00:00
Owen Anderson
db1a4541c2 Provide Thumb2 encodings for sxtb and friends.
llvm-svn: 119185
2010-11-15 21:12:05 +00:00
Eric Christopher
22b01f0d76 Recommit this change and remove the failing part of the test - it didn't
pass in the first place and was masked by earlier failures not warning
and aborting the block.

llvm-svn: 119184
2010-11-15 21:11:06 +00:00
Jakob Stoklund Olesen
920856ab38 Fix PR8612 in the standard spiller as well.
The live range of a register defined by an early clobber starts at the use slot,
not the def slot.

llvm-svn: 119183
2010-11-15 20:55:53 +00:00
Jakob Stoklund Olesen
86fba16eb1 When spilling a register defined by an early clobber, make sure that the new
live ranges for the spill register are also defined at the use slot instead of
the normal def slot.

This fixes PR8612 for the inline spiller. A use was being allocated to the same
register as a spilled early clobber def.

This problem exists in all the spillers. A fix for the standard spiller is
forthcoming.

llvm-svn: 119182
2010-11-15 20:55:49 +00:00
Owen Anderson
0bb2efeb7d Add Thumb2 encodings for comparison and shift operators.
llvm-svn: 119176
2010-11-15 19:58:36 +00:00
Owen Anderson
5ae5db8931 Add correct Thumb2 encodings for mvn and friends.
llvm-svn: 119170
2010-11-15 18:45:17 +00:00
Duncan Sands
ccdccb2776 Teach InstructionSimplify the trick of skipping incoming phi
values that are equal to the phi itself.

llvm-svn: 119161
2010-11-15 17:52:45 +00:00
Duncan Sands
658bdcf094 Move PHI tests to phi.ll, out of select.ll.
llvm-svn: 119153
2010-11-15 16:43:28 +00:00
Rafael Espindola
1f6440b1e2 Change MCExpr::EvaluateAsRelocatableImpl of variables to return the original
variable if recursing fails to simplify it.

Factor AliasedSymbol to be a method of MCSymbol.

Update MCAssembler::EvaluateFixup to match the change in
EvaluateAsRelocatableImpl.

Remove the WeakRefExpr hack, as the object writer now sees the weakref with
no extra effort needed.

Nothing else is using MCTargetExpr, but keep it for now.

Now that the ELF writer sees relocations with aliases, handle

    .weak    foo2
foo2:
    .weak    bar2
    .set    bar2,foo2
    .quad    bar2

the same way gas does and produce a relocation with bar2.

llvm-svn: 119152
2010-11-15 16:33:49 +00:00
Rafael Espindola
f6c0121c93 Fix PR8565.
This moves most of the isUsed logic to the MCSymbol itself. With this we
get a bit more relaxed about allowing definitions after uses: uses that
don't evaluate their argument immediately (jmp foo) are accepted.

ddunbar, this was the smallest compromise I could think of that lets us
accept gcc (and clang!) assembly.

llvm-svn: 119144
2010-11-15 14:40:36 +00:00
Chris Lattner
3e135493e9 remove a pointless testcase.
llvm-svn: 119119
2010-11-15 05:07:03 +00:00
Chris Lattner
7743db8f20 remove some extraneous quotes to make the new instprinter match.
llvm-svn: 119104
2010-11-15 02:43:46 +00:00
Rafael Espindola
5572cb1aed Move the logic to decide with which symbol we produce a relocation (if any) to
a central location. This also makes us a bit more compatible with gas.

llvm-svn: 119094
2010-11-14 23:53:26 +00:00
Chris Lattner
8cb5c07514 add some nounwind's.
llvm-svn: 119086
2010-11-14 22:22:14 +00:00
Rafael Espindola
59a93284d7 Fix another case of a .comm directive without a corresponding .type
directive.

llvm-svn: 119073
2010-11-14 21:11:16 +00:00
Rafael Espindola
1884e6d475 Fix the type of a symbol created with .comm and no corresponding .type.
llvm-svn: 119060
2010-11-14 19:40:55 +00:00
Dale Johannesen
05a7c613fa Segregate tests by target.
llvm-svn: 119050
2010-11-14 18:14:32 +00:00
Duncan Sands
617030ad18 Teach InstructionSimplify about phi nodes. I chose to have it simply
offload the work to hasConstantValue rather than do something more
complicated (such handling mutually recursive phis) because (1) it is
not clear it is worth it; and (2) if it is worth it, maybe such logic
would be better placed in hasConstantValue.  Adjust some GVN tests
which are now cleaned up much further (eg: all phi nodes are removed).

llvm-svn: 119043
2010-11-14 13:30:18 +00:00
Chris Lattner
7ade54ed02 rename test.
llvm-svn: 119033
2010-11-14 07:03:49 +00:00
Chris Lattner
9b45357c09 filecheckize, remove an old and useless test
llvm-svn: 119032
2010-11-14 07:03:38 +00:00
Chris Lattner
449c3bd7b5 this test is pretty pointless and "propogation" isn't a word (or so Misha claims).
llvm-svn: 119031
2010-11-14 07:02:03 +00:00
Rafael Espindola
444d9c0b02 Handle a peculiar comdat case: Creating a section with an undefined
signature symbol causes a local symbol to be created unless there is
some other use of the symbol.

llvm-svn: 119026
2010-11-14 04:17:37 +00:00
Duncan Sands
47dddbe925 Testcase to go along with commit 118923 ("Have GVN simplify instructions
as it goes").  Before -std-compile-opts only got it down to
  %a = tail call i32 @foo(i32 0) readnone
  %x = tail call i32 @foo(i32 %a) readnone
  %y = tail call i32 @foo(i32 %a) readnone
  %z = icmp eq i32 %x, %y
  ret i1 %z
while now -basicaa -gvn alone reduce it to
  %a = call i32 @foo(i32 0) readnone
  %x = call i32 @foo(i32 %a) readnone
  ret i1 true

llvm-svn: 119009
2010-11-13 21:33:19 +00:00
Peter Collingbourne
4ec6b2dbe7 Recognise 32-bit ror-based bswap implementation used by uclibc
llvm-svn: 119007
2010-11-13 19:54:30 +00:00
Duncan Sands
88fc6cd7fe Generalize the reassociation transform in SimplifyCommutative (now renamed to
SimplifyAssociativeOrCommutative) "(A op C1) op C2" -> "A op (C1 op C2)",
which previously was only done if C1 and C2 were constants, to occur whenever
"C1 op C2" simplifies (a la InstructionSimplify).  Since the simplifying operand
combination can no longer be assumed to be the right-hand terms, consider all of
the possible permutations.  When compiling "gcc as one big file", transform 2
(i.e. using right-hand operands) fires about 4000 times but it has to be said
that most of the time the simplifying operands are both constants.  Transforms
3, 4 and 5 each fired once.  Transform 6, which is an existing transform that
I didn't change, never fired.  With this change, the testcase is now optimized
perfectly with one run of instcombine (previously it required instcombine +
reassociate + instcombine, and it may just have been luck that this worked).

llvm-svn: 119002
2010-11-13 15:10:37 +00:00
Wesley Peck
4a2644f203 Fixed error and re-enabled MBlaze MC disassembler tests.
llvm-svn: 118987
2010-11-13 05:48:21 +00:00
Rafael Espindola
9cd0fd30e0 Parse and record the gnu_unique_object type.
llvm-svn: 118980
2010-11-13 04:51:02 +00:00
Dale Johannesen
7a2e75185a This test stops after disassembling 1 instructions on
darwin and, judging from the buildbots, Linux.
Removing it for now, but this is not the right fix,
Wesley please look at it.

llvm-svn: 118977
2010-11-13 03:55:04 +00:00
Rafael Espindola
00c5605efc Parse and remember discriminators in .loc line. I try to output them with
another patch.
This lets us parse a bit more of the gcc 4.5 output.

llvm-svn: 118975
2010-11-13 03:18:27 +00:00
Wesley Peck
5c8b28f1fe Add test cases that should have been committed with 118969.
llvm-svn: 118974
2010-11-13 02:51:00 +00:00
Wesley Peck
c534d55751 1. Adding test cases for MBlaze MC disassembler.
2. Fixing several errors in disassembler uncovered by test cases.
3. Fixing invalid encoding of PCMPEQ and PCMPNE uncovered by test cases.

llvm-svn: 118969
2010-11-13 02:37:59 +00:00
Evan Cheng
a7d3c3d387 Add conditional move of large immediate.
llvm-svn: 118968
2010-11-13 02:25:14 +00:00
Rafael Espindola
e296fd654b Fix the encoding of negative line deltas.
llvm-svn: 118962
2010-11-13 01:06:27 +00:00
Daniel Dunbar
95f870ece4 lli: Switch to using ParseIRFile, for consistency with other LLVM tools.
- Also, switch tests to not using llvm-as. They run 20% faster now, not that it matters.

llvm-svn: 118952
2010-11-13 00:28:01 +00:00
Evan Cheng
a08372d4b4 Fix an obvious typo which inverted an immediate.
llvm-svn: 118951
2010-11-13 00:27:47 +00:00
Eric Christopher
ba758d0df4 This should be still failing, but is. Disable it with the
forget-me-stick for now.

llvm-svn: 118950
2010-11-13 00:25:06 +00:00
Wesley Peck
28f124b047 1. Adding missing immediate mode asm parser test cases.
2. Fixing improper immediate mode reverse subtract.

llvm-svn: 118948
2010-11-13 00:03:46 +00:00
Wesley Peck
f11db049fe Fixing improperly encoded reverse subtract instructions in MBlaze backend.
llvm-svn: 118943
2010-11-12 23:41:10 +00:00
Wesley Peck
be71f5db40 1. Finishing MBlaze MC asm parser test cases
2. Parsing .word directive in MBlaze asm parser
3. Fixing hack where memory instructions reversed order of last two parameters
4. Fixing many improperly encoded instructions
5. Support parsing special instructions (MFS,MTS,etc.)
6. Removing unused functions from inst printer

llvm-svn: 118941
2010-11-12 23:30:17 +00:00
Evan Cheng
19f018a1be Add conditional mvn instructions.
llvm-svn: 118935
2010-11-12 22:42:47 +00:00
Owen Anderson
f1ffc8fdc9 First stab at providing correct Thumb2 encodings, start with adc.
llvm-svn: 118924
2010-11-12 21:12:40 +00:00
Evan Cheng
b565d1acf9 Add some missing isel predicates on def : pat patterns to avoid generating VFP vmla / vmls (they cause stalls). Disabling them in isel is properly not a right solution, I'll look into a proper solution next.
llvm-svn: 118922
2010-11-12 20:32:20 +00:00
Chris Lattner
2a70c4e38a accept lret as an alias for lretl, fixing the reopened part of PR8592
llvm-svn: 118916
2010-11-12 18:54:56 +00:00
Andrew Trick
a2f5bd63ff Emacs auto-fill bug.
llvm-svn: 118908
2010-11-12 18:17:46 +00:00
Andrew Trick
e5e40ec069 Test case for PR8287: SD scheduling time. Fixed in r118904.
llvm-svn: 118906
2010-11-12 17:57:22 +00:00
Chris Lattner
612039e538 implement PR8592: empirically "lretq" is a "lret" with a rex.w prefix.
llvm-svn: 118903
2010-11-12 17:41:20 +00:00
Rafael Espindola
dc54b2b285 gnu as support both % and @ before types, do the same.
llvm-svn: 118893
2010-11-12 15:47:08 +00:00
Kalle Raiskila
f89d0d0389 Fix memory access lowering on SPU, adding
support for the case where alignment<value size.

These cases were silently miscompiled before this patch.
Now they are overly verbose -especially storing is- and
any front-end should still avoid misaligned memory 
accesses as much as possible. The bit juggling algorithm
added here probably has some room for improvement still.

llvm-svn: 118889
2010-11-12 10:14:03 +00:00
Dan Gohman
bc5a716f10 Enhance DSE to handle the case where a free call makes more than
one store dead. This is especially noticeable in
SingleSource/Benchmarks/Shootout/objinst.

llvm-svn: 118875
2010-11-12 02:19:17 +00:00
Dan Gohman
2cf0e523cb Filecheckize.
llvm-svn: 118874
2010-11-12 02:02:39 +00:00
Bruno Cardoso Lopes
37f2439cbd Enable mips32 mul instruction. Patch by Akira Hatanaka <ahatanaka@mips.com>
llvm-svn: 118864
2010-11-12 00:38:32 +00:00