Commit Graph

74522 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen 43859a6ad2 Rename {First,Last}Use to {First,Last}Instr.
With a 'FirstDef' field right there, it is very confusing that FirstUse
refers to an instruction that may be a def.

llvm-svn: 136739
2011-08-02 22:54:14 +00:00
Evan Cheng fd7f6c9438 lldb doesn't need the edis dylib any more.
llvm-svn: 136738
2011-08-02 22:53:48 +00:00
Eli Friedman 5c863aeefd ARM backend support for atomicrmw and cmpxchg with non-monotonic ordering. Not especially pretty, but seems to work well enough. If this looks okay, I'll put together similar patches for Mips, PPC, and Alpha.
llvm-svn: 136737
2011-08-02 22:44:16 +00:00
Jakob Stoklund Olesen ae8027cc95 Add a BlockInfo::FirstDef field.
This is either an invalid SlotIndex, or valno->def for the first value
defined inside the block. PHI values are not counted as defined inside
the block.

The FirstDef field will be used when estimating the cost of spilling
around a block.

llvm-svn: 136736
2011-08-02 22:37:22 +00:00
Jakob Stoklund Olesen f047ff4fe1 Delete BlockInfo::LiveThrough. It wasn't used any more.
llvm-svn: 136735
2011-08-02 22:37:20 +00:00
Nick Lewycky e8ae02dfb9 Teach InstCombine that lifetime intrincs aren't a real user on the result of a
malloc call.

llvm-svn: 136732
2011-08-02 22:08:01 +00:00
Jakob Stoklund Olesen d2a7d1ed97 Extend the SpillPlacement interface with two new features.
The PrefBoth constraint is used for blocks that ideally want a live-in
value both on the stack and in a register. This would be used by a block
that has a use before interference forces a spill.

Secondly, add the ChangesValue flag to BlockConstraint. This tells
SpillPlacement if a live-in value on the stack can be reused as a
live-out stack value for free. If the block redefines the virtual
register, a spill would be required for that.

This extra information will be used by SpillPlacement to more accurately
calculate spill costs when a value can exist both on the stack and in a
register.

The simplest example is a basic block that reads the virtual register,
but doesn't change its value. Spilling around such a block requires a
reload, but no spill in the block.

The spiller already knows this, but the spill placer doesn't. That can
sometimes lead to suboptimal regions.

llvm-svn: 136731
2011-08-02 21:53:03 +00:00
Bill Wendling bbcb7cde34 Add the documentation for the 'landingpad' instruction. Improve the 'invoke'
instruction's documentation to reference the landingpad and resume instructions.

llvm-svn: 136729
2011-08-02 21:52:38 +00:00
Rafael Espindola 3ea478b7ac Move methods in PassManagerBuilder offline.
llvm-svn: 136727
2011-08-02 21:50:27 +00:00
Rafael Espindola 591eaa481e move PassManagerBuilder.h to IPO. This is a non intuitive place to put it,
but it solves a layering violation since things in Support are not supposed to
use things in Transforms.

llvm-svn: 136726
2011-08-02 21:50:24 +00:00
Eli Friedman 366bccefad Add new atomic instructions to SCCP. No functional change, but stops debug spam.
llvm-svn: 136723
2011-08-02 21:35:16 +00:00
Nick Lewycky 99890a225f Lifetime intrinsics on undef are dead.
llvm-svn: 136722
2011-08-02 21:19:27 +00:00
Chad Rosier 8c9d9b2f0f Update the default bug report url in autoconf.
llvm-svn: 136721
2011-08-02 20:53:43 +00:00
Chris Lattner d3d65ab791 no need to count the terminators.
llvm-svn: 136718
2011-08-02 20:29:13 +00:00
Rafael Espindola c48e10cd54 Assume .cfi_startproc is the first thing in a function. If the function is
externally visable, create a local symbol to use in the CFE. If not, use the
function label itself.

Fixes PR10420.

llvm-svn: 136716
2011-08-02 20:24:22 +00:00
Eli Friedman 04c5025cd5 Don't create a ridiculous EXTRACT_ELEMENT. PR10563.
The testcase looks extremely fragile, so I'm adding an assertion which should catch any cases like this.

llvm-svn: 136711
2011-08-02 18:38:35 +00:00
Owen Anderson 713406f88d Fix the broken encodings for the VFP vmov.f32 and vmov.f64 instructions, as well as the comments that explain them incorrectly.
llvm-svn: 136707
2011-08-02 18:30:00 +00:00
Jim Grosbach c8c63914c5 Tidy up. 80 columns.
llvm-svn: 136705
2011-08-02 18:16:36 +00:00
Jim Grosbach 9ec152b6bf ARM: rename addrmode7 to addr_offset_none.
Use a more descriptive name so the code is more self-documenting.

llvm-svn: 136704
2011-08-02 18:07:32 +00:00
Roman Divacky 11a044634a Comment out the PPC relocation offset adjustment. It must be done differently.
This unbreaks some tests.

llvm-svn: 136692
2011-08-02 16:15:32 +00:00
Bruno Cardoso Lopes 5ada908140 Make this kind of lowering to be supported by 256-bit instructions:
shuffle (scalar_to_vector (load (ptr + 4))), undef, <0, 0, 0, 0>
To:
  shuffle (vload ptr)), undef, <1, 1, 1, 1>
Fix PR10494

llvm-svn: 136691
2011-08-02 16:06:18 +00:00
Roman Divacky e6a11dcc72 Remove trailing semicolon.
llvm-svn: 136690
2011-08-02 15:54:03 +00:00
Roman Divacky 038c1a1a73 Sketch out PowerPC ELF writer. This is enough to get clang -integrated-as
to compile a working hello world on FreeBSD/PPC32.

llvm-svn: 136689
2011-08-02 15:51:38 +00:00
Bill Wendling 6bc7caa334 Duncan's english is better than mine. :-)
llvm-svn: 136684
2011-08-02 06:39:13 +00:00
Bill Wendling 46ffaa95bd Remove the LLVMBuildUnwind C API function.
The 'unwind' function is going away with the new EH rewrite. This is step 0 in
keeping front-ends from using it.

llvm-svn: 136683
2011-08-02 06:20:17 +00:00
Andrew Trick 77c55428fa Use consistent terminology for loop exit/exiting blocks. Name change only.
llvm-svn: 136677
2011-08-02 04:23:35 +00:00
Benjamin Kramer c4189ff0fc Remove empty test.
llvm-svn: 136675
2011-08-02 02:47:45 +00:00
Owen Anderson bddf40e082 Revert r136503 and r136480 in an effort to fix non-determinism in the llvm-gcc buildbots on i386. Devang is looking into the root cause.
llvm-svn: 136674
2011-08-02 02:23:42 +00:00
John McCall c26ea5a51a I am the code owner for Clang's IR generation; this has been true
for awhile, but it's good to make this official.  

Just to be clear, Doug and Ted "elected" me to this position.

Might as well add myself to the credits list while I'm at it.

llvm-svn: 136673
2011-08-02 01:38:19 +00:00
Eli Friedman 4bc9f3c174 Minor wording tweak for memory model.
llvm-svn: 136668
2011-08-02 01:15:34 +00:00
Eli Friedman 8d468f88a2 Fix a couple silly typos in IRBuilder in the new atomic instructions.
llvm-svn: 136665
2011-08-02 00:45:35 +00:00
Nick Lewycky a530a4d925 Bail from FastISel when we encounter a volatile memset intrinsic. Patch by Ivan
Krasin!

llvm-svn: 136663
2011-08-02 00:40:16 +00:00
Owen Anderson 3022d6711d Make the FixedLengthDecoderEmitter smart enough to autogenerate decoders for encodings like "let Inst{11-7} = foo;", where the RHS has no bitwidth specifiers.
llvm-svn: 136660
2011-08-01 22:45:43 +00:00
Jim Grosbach 9f620a6883 Move imm0_255 to ARMInstrInfo.td with the other immediate predicates.
llvm-svn: 136656
2011-08-01 22:02:20 +00:00
Jim Grosbach 0f731b3232 Fix comments.
llvm-svn: 136655
2011-08-01 21:55:12 +00:00
Bruno Cardoso Lopes a8e3673816 Add v4f64 -> v2f32 fp_round support. Also add a testcase to exercise
the legalizer. This commit together with the two previous ones fixes
PR10495.

llvm-svn: 136654
2011-08-01 21:54:09 +00:00
Bruno Cardoso Lopes 616fe60548 Teach PreprocessISelDAG to be aware of vector types and to not process them.
llvm-svn: 136653
2011-08-01 21:54:05 +00:00
Bruno Cardoso Lopes bd30a4b584 Lower CONCAT_VECTORS to use two VINSERTF128 instructions instead of
using a stack store.

llvm-svn: 136652
2011-08-01 21:54:02 +00:00
Roman Divacky 2fbb48ae20 Fix a typo.
llvm-svn: 136646
2011-08-01 20:38:27 +00:00
Owen Anderson faee2cf9ff The FixedLenDecoder needs to gracefully handle failing per-instruction decoder hooks in addition to per-operand decoder hooks.
llvm-svn: 136645
2011-08-01 20:06:49 +00:00
Chandler Carruth c099a6f9ce Actually finish switching to the new system for Target sublibrary
TableGen deps introduced in r136023. This completes the fixing that
dgregor started in r136621. Sorry for missing these the first time
around.

This should fix some of the random race-condition failures people are
still seeing with CMake.

llvm-svn: 136643
2011-08-01 19:55:11 +00:00
Bruno Cardoso Lopes 7513939ddd Since vectors with all ones can't be created with a 256-bit instruction,
avoid returning early for v8i32 types, which would only be valid for
vector with all zeros. Also split the handling of zeros and ones into separate
checking logic since they are handled differently. This fixes PR10547

llvm-svn: 136642
2011-08-01 19:51:53 +00:00
Evan Cheng de4ae46607 Set endianess and pointer size for PPC Linux. Bug noticed by Roman Divacky.
llvm-svn: 136639
2011-08-01 19:43:05 +00:00
Jakub Staszak 8b13b59f60 Change SmallVector to SmallPtrSet in BranchProbabilityInfo. Handle cases where
one than one successor goes to the same block.

llvm-svn: 136638
2011-08-01 19:16:26 +00:00
Owen Anderson 37ef826040 Enhance the fixed length disassembler to better handle operand decoding failures.
llvm-svn: 136635
2011-08-01 18:44:37 +00:00
Owen Anderson 36bc519a7f Add a clear() operation to MCInst, to drop all of its operands. Useful for the disassembler, where we may realize fairly late into decoding that something is wrong and need to reset.
llvm-svn: 136634
2011-08-01 18:43:18 +00:00
Richard Osborne 0cc000ef29 Fix crash with varargs function with no named parameters.
llvm-svn: 136623
2011-08-01 16:45:59 +00:00
Douglas Gregor d41f3a161f Update CMake target names for tablegen-generated data in the X86 and ARM targets. This should fix the CMake build with MSVC.
llvm-svn: 136621
2011-08-01 16:29:27 +00:00
Jakub Staszak 6b31963d6c Add BlockFrequency::getEntryFrequency()
llvm-svn: 136618
2011-08-01 15:22:10 +00:00
Jay Foad 92c1913e22 Add braces.
llvm-svn: 136612
2011-08-01 12:48:54 +00:00
Jay Foad 26db79d236 Simplify printAlias.
llvm-svn: 136611
2011-08-01 12:29:14 +00:00
Jay Foad 7f4cd9e678 Micro-optimisation in getAliasedGlobal.
llvm-svn: 136610
2011-08-01 12:28:01 +00:00
Jay Foad 8dfee5f6bf Remove an unnecessary cast.
llvm-svn: 136609
2011-08-01 12:27:15 +00:00
Jay Foad 97c14a6b39 The operands of a GlobalAlias are always Constants. Simplify things
accordingly.

llvm-svn: 136608
2011-08-01 12:20:36 +00:00
Chandler Carruth 09fae1f257 I mis-interpreted the MCDisassembler's intended dependencies. Now to fix
them properly. Specifically, the disassembler clearly attempts to
initialiaze all TargetInfo, MCTargeDesc, AsmParser, and Disassembler
sublibraries of registered targets. This makes the CMakeLists accurately
reflect this intent in the code.

This should fix the last of the link errors that I have gotten reports
of on OS X, but if anyone continues to see link errors, continue to
pester me and I'll look into it.

llvm-svn: 136603
2011-07-31 22:00:40 +00:00
Bill Wendling ae8b5ea838 Fix some validation errors.
llvm-svn: 136591
2011-07-31 06:47:33 +00:00
Bill Wendling 537603b35d Fix some validation errors.
llvm-svn: 136590
2011-07-31 06:45:03 +00:00
Bill Wendling f891bf8b30 Add the 'resume' instruction for the new EH rewrite.
This adds the 'resume' instruction class, IR parsing, and bitcode reading and
writing. The 'resume' instruction resumes propagation of an existing (in-flight)
exception whose unwinding was interrupted with a 'landingpad' instruction (to be
added later).

llvm-svn: 136589
2011-07-31 06:30:59 +00:00
Jakub Staszak 6651b33671 Do not handle cases with >= and <= predicates.
llvm-svn: 136588
2011-07-31 05:54:04 +00:00
Jakub Staszak e348afb612 Remove untrue comment.
llvm-svn: 136587
2011-07-31 04:51:14 +00:00
Jakub Staszak bfb1ae223b Do not handle case where LHS is equal to zero, because InstCombiner always moves
it to RHS anyway.

llvm-svn: 136586
2011-07-31 04:47:20 +00:00
Rafael Espindola a3a44f3fc3 Add a small gep optimization I noticed was missing while reading some IL.
llvm-svn: 136585
2011-07-31 04:43:41 +00:00
Jakob Stoklund Olesen 163e7a73f1 Time the emission of debug values.
llvm-svn: 136584
2011-07-31 03:53:42 +00:00
Jakub Staszak 17af66a62f Add Zero Heurestics to BranchProbabilityInfo. If we compare value to zero we
decide whether condition is likely to be true this way:

x == 0  ->  false
x <  0  ->  false
x <= 0  ->  false
x != 0  ->  true
x >  0  ->  true
x >= 0  ->  true

llvm-svn: 136583
2011-07-31 03:27:24 +00:00
Benjamin Kramer 99d53ff456 Remove InvalidateStructLayoutInfo from the ocaml bindings.
llvm-svn: 136582
2011-07-31 01:12:39 +00:00
Jakob Stoklund Olesen eb5ea833ed Revert r136528 "Enable compact region splitting by default."
While this generally helped x86-64, there was some large regressions
for i386.

llvm-svn: 136571
2011-07-30 17:19:14 +00:00
Chandler Carruth 27246dc784 Switch another of the old dependencies on implicitly produced synthetic
rules to the new explicitly listed TableGen rules. Somehow I missed this
in my original sweep.

llvm-svn: 136567
2011-07-30 10:10:23 +00:00
Chandler Carruth b58053bb41 Remove yet another buried and hidden implicit dependency: every single
sub-library for the targets depended on the core target CodeGen library.
This completely undermined the careful work to separate the those
libraries, especially the MC-layer ones. This surfaced as circular
dependencies when the libraries were built as shared libraries where
CMake doesn't allow cycles.

This should fix PR10537. I'll watch the bots to see if there is fallout
on other platforms.

llvm-svn: 136565
2011-07-30 08:47:05 +00:00
Bill Wendling ad088e6724 Revert r136253, r136263, r136269, r136313, r136325, r136326, r136329, r136338,
r136339, r136341, r136369, r136387, r136392, r136396, r136429, r136430, r136444,
r136445, r136446, r136253 pending review.

llvm-svn: 136556
2011-07-30 05:42:50 +00:00
Sean Callanan 147c83ed4d Added several architecture names.
llvm-svn: 136552
2011-07-30 01:29:54 +00:00
Jakob Stoklund Olesen 5670f850c6 Revert "Don't check liveness of unallocatable registers."
The ARM target depends on CPSR liveness being tracked after register
allocation.

llvm-svn: 136548
2011-07-30 00:57:25 +00:00
Chandler Carruth 68b23116cb Make my attempt to build up global deps variables actually utilize
globally scoped constructs. Also, round-trip these dependencies through
the LLVMConfig.cmake.in file thata is used by CMake-based clients of
"installed" (or built) LLVM trees.

llvm-svn: 136543
2011-07-29 23:52:01 +00:00
Jakob Stoklund Olesen 95cc5440e9 Don't check liveness of unallocatable registers.
This includes registers like EFLAGS and ST0-ST7. We don't check for
liveness issues in the verifier and scavenger because registers will
never be allocated from these classes.

While in SSA form, we do care about the liveness of unallocatable
unreserved registers. Liveness of EFLAGS and ST0 neds to be correct for
MachineDCE and MachineSinking.

llvm-svn: 136541
2011-07-29 23:36:21 +00:00
Jakob Stoklund Olesen 9dd184151b Check for multiple defs in the machine code verifier.
llvm-svn: 136535
2011-07-29 23:02:48 +00:00
Owen Anderson e08f5b5b37 Correctly handle scattered operands where the bits of the operand are contiguous, but out of order.
llvm-svn: 136534
2011-07-29 23:01:18 +00:00
Jakob Stoklund Olesen 9760f04ef9 Add an isSSA() flag to MachineRegisterInfo.
This flag is true from isel to register allocation when the machine
function is required to be in SSA form.  The TwoAddressInstructionPass
and PHIElimination passes clear the flag.

The SSA flag wil be used by the machine code verifier to check for SSA
form, and eventually an assertion can enforce it in +Asserts builds.
This will catch the common target error of creating machine code with
multiple defs of a virtual register.

llvm-svn: 136532
2011-07-29 22:51:22 +00:00
David Greene af8ee2cdee Unconstify Inits
Remove const qualifiers from Init references, per Chris' request.

llvm-svn: 136531
2011-07-29 22:43:06 +00:00
Jakub Staszak 0480a8fbbb Do not lose branch weights when lowering SwitchInst.
llvm-svn: 136529
2011-07-29 22:25:21 +00:00
Jakob Stoklund Olesen b5c2d3210c Enable compact region splitting by default.
This helps generate better code in functions with high register
pressure.

llvm-svn: 136528
2011-07-29 22:10:27 +00:00
Eric Christopher aa5030066f Add support for the 'Q' constraint.
Fixes rdar://9866494

llvm-svn: 136523
2011-07-29 21:18:58 +00:00
David Greene ebeb779b72 Remove a blank line from the top.
llvm-svn: 136511
2011-07-29 20:50:18 +00:00
Chris Lattner 34a7db7ae8 have the verifier catch gep's into opaque struct types. PR10473
llvm-svn: 136510
2011-07-29 20:32:28 +00:00
Jim Grosbach 51726e2147 ARM SRS instruction parsing, diassembly and encoding support.
Fix the instruction encoding for operands. Refactor mode to use explicit
instruction definitions per FIXME to be more consistent with loads/stores.
Fix disassembler accordingly. Add tests.

llvm-svn: 136509
2011-07-29 20:26:09 +00:00
Chandler Carruth 3566477679 On mac, it seems the MC disassembler is actually using the targetinfo
for targets that don't have an MC-ized disassembler. I'm suspicious that
this shouldn't actually be happening, but hoping to fix the CMake build
on macs first, and investigate why second.

llvm-svn: 136508
2011-07-29 20:23:34 +00:00
Jakub Staszak 539db98987 Remove unneeded const_cast.
llvm-svn: 136506
2011-07-29 20:05:36 +00:00
Jim Grosbach e537438ca5 ARM CPS mode immediate is 5 bits, not 4.
llvm-svn: 136505
2011-07-29 20:02:39 +00:00
Devang Patel ce0ceebb1c Clear DbgValues in the end.
llvm-svn: 136503
2011-07-29 19:49:58 +00:00
Jakub Staszak efd94c8fea Add more constantness in BranchProbabilityInfo.
llvm-svn: 136502
2011-07-29 19:30:00 +00:00
David Greene a74bd90d3b [AVX] Make DagInits Unique
Make sure DagInits are unique and created only once.

llvm-svn: 136501
2011-07-29 19:07:26 +00:00
David Greene 760f867c7d [AVX] Make FieldInit Unique
Make sure FieldInits are unique and created only once.

llvm-svn: 136500
2011-07-29 19:07:24 +00:00
David Greene 7f501e8b4d [AVX] Make VarListElementInit Unique
Make sure VarListElementInits are unique and created only once.

llvm-svn: 136499
2011-07-29 19:07:23 +00:00
David Greene 9aa82842c7 [AVX] Make VarBitInit Unique
Make sure VarBitInits are unique and created only once.

llvm-svn: 136498
2011-07-29 19:07:22 +00:00
David Greene cde30d04b7 [AVX] Make VarInit Unique
Make sure VarInits are unique and created only once.

llvm-svn: 136497
2011-07-29 19:07:21 +00:00
David Greene daba48800f [AVX] Make TernOpInit Unique
Make sure TernOpInits are unique and created only once.  This will be
important for AVX/SIMD as many operators will be used to generate
patterns and other relevant data.

llvm-svn: 136496
2011-07-29 19:07:20 +00:00
David Greene 3acab9c5fe [AVX] Make BinOpInit Unique
Make sure BinOpInits are unique and created only once.  This will be
important for AVX/SIMD as many operators will be used to generate
patterns and other relevant data.

llvm-svn: 136495
2011-07-29 19:07:19 +00:00
David Greene 2b6c8b3794 [AVX] Make UnOpInit Unique
Make sure UnOpInits are unique and created only once.  This will be
important for AVX/SIMD as many operators will be used to generate
patterns and other relevant data.

llvm-svn: 136494
2011-07-29 19:07:18 +00:00
David Greene c52270be8a [AVX] Make ListInits Unique
Ensure ListInits are unique and only created once.  This will be
important for AVX as lists will be used extensively to pass generic
patterns, prefix information and other things to lower-level
pattern-generation classes.

llvm-svn: 136493
2011-07-29 19:07:16 +00:00
David Greene 3468b0f483 [AVX] Make CodeInit Unique
Use a StringMap to ensure CodeInits are unique and created only
once.

llvm-svn: 136492
2011-07-29 19:07:15 +00:00
David Greene 3ff33c9123 [AVX] Make StringInit Unique
Use a StringMap to ensure the StringInits are unique.  This is
especially important for AVX where we will have many smallish
strings representing instruction prefixes, suffixes and the like.

llvm-svn: 136491
2011-07-29 19:07:14 +00:00
David Greene a44263c0cc [AVX] Make IntInit Unique
Use a DenseMap to make sure only one IntInit of any value exists.

llvm-svn: 136490
2011-07-29 19:07:12 +00:00