Commit Graph

14930 Commits

Author SHA1 Message Date
Torok Edwin
c44943ed4f C/OCaml API to retrieve struct name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141285 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-06 12:12:50 +00:00
Evan Cheng
cf2adb945a Cosmetic change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141269 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-06 02:47:18 +00:00
Peter Collingbourne
de8f33c199 Build system infrastructure for multiple tblgens.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141266 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-06 01:51:51 +00:00
Jakob Stoklund Olesen
d9c1fa5205 Remove the TRI::getSubRegisterRegClass() hook.
This restores my karma after I added TRI::getSubClassWithSubReg().

Register constraints are applied 'backwards'.  Starting from the
register class required by an instruction operand, the correct question
is: 'How can I constrain the super-register register class so all its
sub-registers satisfy the instruction constraint?' The
getMatchingSuperRegClass() hook answers that.

We never need to go 'forwards': Starting from a super-register register
class, what register class are the sub-registers in?  The
getSubRegisterRegClass() hook did that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141258 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-06 00:08:27 +00:00
Bill Wendling
d3b56cbb7d Add accessor method to check if the landing pad symbol has call site information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141244 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05 23:26:10 +00:00
David Greene
bda579b8ba Add Multidef Data Structures
Add a set of data structures and members analogous to those used for
multiclass defs.  These will represent a new kind of multiclass def: a
multidef.  The idea behind the multidef is to process a list of items
and create a def record for each one inside the enclosing multiclass.
This allows the user to dynamically create a set of defs based on the
contents of a list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141230 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05 22:42:17 +00:00
Bill Wendling
84fb7dd09e Add an ivar that maps a landing pad's EH symbol to the call sites that may jump
to the landing pad. This will be used by the back-end to generate the jump
tables for dispatching the arriving longjmp in sjlj eh.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141224 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05 22:20:38 +00:00
Rafael Espindola
11f1a8335e Check for the returns_twice attribute in callsFunctionThatReturnsTwice. This
fixes PR11038, but there are still some cleanups to be done.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141204 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05 20:05:13 +00:00
Jakob Stoklund Olesen
845d2c0c77 Add TRI::getSubClassWithSubReg(RC, Idx) function.
This function is used to constrain a register class to a sub-class that
supports the given sub-register index.

For example, getSubClassWithSubReg(GR32, sub_8bit) -> GR32_ABCD.

The function will be used to compute register classes when emitting
INSERT_SUBREG and EXTRACT_SUBREG nodes and for register class inflation
of sub-register operations.

The version provided by TableGen is usually adequate, but targets can
override.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141142 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05 00:35:49 +00:00
Owen Anderson
2fec6c5ff1 Teach the MC to output code/data region marker labels in MachO and ELF modes. These are used by disassemblers to provide better disassembly, particularly on targets like ARM Thumb that like to intermingle data in the TEXT segment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141135 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04 23:26:17 +00:00
Kevin Enderby
9e5887b17e Adding back support for printing operands symbolically to ARM's new disassembler
using llvm's public 'C' disassembler API now including annotations.

Hooked this up to Darwin's otool(1) so it can again print things like branch
targets for example this:
 blx _puts
instead of this:
 blx #-36
and includes support for annotations for branches to symbol stubs like:
 bl	0x40 @ symbol stub for: _puts
and annotations for pc relative loads like this:
 ldr	r3, #8 @ literal pool for: Hello, world!
Also again can print the expression encoded in the Mach-O relocation entries for
things like this:
 movt r0, :upper16:((_foo-_bar)+1234)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141129 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04 22:44:48 +00:00
Jakob Stoklund Olesen
7016cf66ee Allow <undef> flags on def operands as well as uses.
The <undef> flag says that a MachineOperand doesn't read its register,
or doesn't depend on the previous value of its register.

A full register def never depends on the previous register value.  A
partial register def may depend on the previous value if it is intended
to update part of a register.

For example:

  %vreg10:dsub_0<def,undef> = COPY %vreg1
  %vreg10:dsub_1<def> = COPY %vreg2

The first copy instruction defines the full %vreg10 register with the
bits not covered by dsub_0 defined as <undef>.  It is not considered a
read of %vreg10.

The second copy modifies part of %vreg10 while preserving the rest.  It
has an implicit read of %vreg10.

This patch adds a MachineOperand::readsReg() method to determine if an
operand reads its register.

Previously, this was modelled by adding a full-register <imp-def>
operand to the instruction.  This approach makes it possible to
determine directly from a MachineOperand if it reads its register.  No
scanning of MI operands is required.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04 21:49:33 +00:00
Bill Wendling
fbc6e404c4 Doxygen-ize comments. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141122 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04 21:25:01 +00:00
Bill Wendling
58d3548ea4 Add method to determine if a begin label has a call site number associated with it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141107 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04 20:31:56 +00:00
Devang Patel
58c620024a Put GCOVFile and other related interface in a common header so that llvm-cov tool can share it with GCOV writer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141095 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04 17:24:48 +00:00
Nick Lewycky
e97728ecf8 The product of two chrec's can always be represented as a chrec.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141066 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04 06:51:26 +00:00
Andrew Trick
f143b79b78 LSR should avoid redundant edge splitting.
This handles the case in which LSR rewrites an IV user that is a phi and
splits critical edges originating from a switch.
Fixes <rdar://problem/6453893> LSR is not splitting edges "nicely"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141059 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04 03:50:44 +00:00
Andrew Trick
2aeb8027d6 whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141058 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04 03:34:49 +00:00
Devang Patel
0e6a24d92a Add C api for Instruction->eraseFromParent().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141023 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03 20:59:18 +00:00
Rafael Espindola
25456ef74c Add the returns_twice attribute to LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141001 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03 14:45:37 +00:00
Ted Kremenek
4f101db885 Make canonicalization of ImmutableSetRef::asImmutableSet() semi-explicit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140959 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-02 01:47:07 +00:00
Peter Collingbourne
7c78888887 Move TableGen's parser and entry point into a library
This is the first step towards splitting LLVM and Clang's tblgen executables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140951 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-01 16:41:13 +00:00
Andrew Trick
b2ab2fa524 Inlining and unrolling heuristics should be aware of free truncs.
We want heuristics to be based on accurate data, but more importantly
we don't want llvm to behave randomly. A benign trunc inserted by an
upstream pass should not cause a wild swings in optimization
level. See PR11034. It's a general problem with threshold-based
heuristics, but we can make it less bad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140919 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-01 01:39:05 +00:00
Andrew Trick
5c655413cf whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140916 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-01 01:27:56 +00:00
Jakob Stoklund Olesen
c8e2bb68bb Store sub-class lists as a bit vector.
This uses less memory and it reduces the complexity of sub-class
operations:

- hasSubClassEq() and friends become O(1) instead of O(N).

- getCommonSubClass() becomes O(N) instead of O(N^2).

In the future, TableGen will infer register classes.  This makes it
cheap to add them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140898 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-30 22:19:07 +00:00
Jakob Stoklund Olesen
e27e1ca3c9 Move getCommonSubClass() into TRI.
It will soon need the context.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140896 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-30 22:18:51 +00:00
Jim Grosbach
026fa8782c Tidy up. Formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140810 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-29 21:43:01 +00:00
Nick Lewycky
5fa301bfa9 Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140807 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-29 21:07:46 +00:00
Eli Friedman
bb5a7442e3 Clean up uses of switch instructions so they are not dependent on the operand ordering. Patch by Stepan Dyatkovskiy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140803 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-29 20:21:17 +00:00
Jakob Stoklund Olesen
92fb79b7a6 Expand the x86 V_SET0* pseudos right after register allocation.
This also makes it possible to reduce the number of pseudo instructions
and get rid of the encoding information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140776 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-29 05:10:54 +00:00
Jakob Stoklund Olesen
cc84cda919 Remove NumImplicitOps which is now unused.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140767 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-29 01:47:36 +00:00
Michael J. Spencer
13afc5eff2 Object: Add isSection{Data,BSS}.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140721 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-28 20:57:30 +00:00
Bill Wendling
6ef94175d1 Create and use an llvm.eh.sjlj.functioncontext intrinsic.
This intrinsic is used to pass the index of the function context to the back-end
for further processing. The back-end is in charge of filling in the rest of the
entries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140676 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-28 03:36:43 +00:00
Jakob Stoklund Olesen
df4b35e3dd Remove X86-dependent stuff from SSEDomainFix.
This also enables domain swizzling for AVX code which required a few
trivial test changes.

The pass will be moved to lib/CodeGen shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140659 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-27 23:50:46 +00:00
Jakob Stoklund Olesen
98e933f9ad Promote the X86 Get/SetSSEDomain functions to TargetInstrInfo.
I am going to unify the SSEDomainFix and NEONMoveFix passes into a
single target independent pass.  They are essentially doing the same
thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140652 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-27 22:57:18 +00:00
Jim Grosbach
5405d58e21 Rename AddSelectionDAGCSEId() to addSelectionDAGCSEId().
Naming conventions consistency. No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140636 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-27 20:59:33 +00:00
Michael J. Spencer
a51d7d97b0 Object: Add archive support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140626 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-27 19:36:55 +00:00
Nadav Rotem
a3c42f3d4e Cleanup PromoteIntOp_EXTRACT_VECTOR_ELT and PromoteIntRes_SETCC.
Add a new method: getAnyExtOrTrunc and use it to replace the manual check.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140603 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-27 11:16:47 +00:00
Eli Friedman
46cb5afdcd Enhance alias analysis for atomic instructions a bit. Upgrade a couple alias-analysis tests to the new atomic instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140557 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-26 20:15:28 +00:00
James Molloy
439780eeae Fix emission of debug data for global variables. getContext() on DIGlobalVariables is not valid any more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140539 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-26 17:40:42 +00:00
Jakob Stoklund Olesen
c291e2f578 Add target hook for pseudo instruction expansion.
Many targets use pseudo instructions to help register allocation.  Like
the COPY instruction, these pseudos can be expanded after register
allocation.  The early expansion can make life easier for PEI and the
post-ra scheduler.

This patch adds a hook that is called for all remaining pseudo
instructions from the ExpandPostRAPseudos pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140472 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-25 19:21:35 +00:00
Jakob Stoklund Olesen
74e2d6ea66 Clean up code after renaming LowerSubregs -> ExpandPostRAPseudos.
No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140470 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-25 16:46:08 +00:00
Daniel Dunbar
bb0a6126cf sys::Process: Add a SetWorkingDirectory method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140433 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23 23:23:36 +00:00
Anna Zaks
b3e3b006bd Add getTreeFactory() to ImmutableSet to allow construction of ImmutableSetRef from an ImmutableSet object.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140402 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23 19:10:26 +00:00
Eric Christopher
d8282cd64f We're no longer going to bother supporting platforms that don't
support C89.

We probably didn't support them anyways.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140361 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23 00:53:10 +00:00
Owen Anderson
124e182103 Start stubbing out MCModule and MCAtom, which provide an API for accessing the rich disassembly of a complete object or executable.
These are very much a work in progress, and not really useful yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140345 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-22 22:32:22 +00:00
Jakob Stoklund Olesen
91fb536a34 Add a MinNumRegs argument to MRI::constrainRegClass().
The function will refuse to use a register class with fewer registers
than MinNumRegs.  This can be used by clients to avoid accidentally
increase register pressure too much.

The default value of MinNumRegs=0 doesn't affect how constrainRegClass()
works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140339 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-22 21:39:31 +00:00
Andrew Trick
3be654f808 Lower ARM adds/subs to add/sub after adding optional CPSR operand.
This is still a hack until we can teach tblgen to generate the
optional CPSR operand rather than an implicit CPSR def. But the
strangeness is now limited to the selection DAG. ADD/SUB MI's no
longer have implicit CPSR defs, nor do we allow flag setting variants
of these opcodes in machine code. There are several corner cases to
consider, and getting one wrong would previously lead to nasty
miscompilation. It's not the first time I've debugged one, so this
time I added enough verification to ensure it won't happen again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140228 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-21 02:20:46 +00:00
Benjamin Kramer
ab6acef531 DebugInfo: Add equality operators and default constructor to DILineInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140223 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-21 01:13:16 +00:00
Bill Wendling
9e7013a506 Use ArrayRef instead of an explicit 'const std::vector &'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140172 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20 19:05:04 +00:00
Andrew Trick
83a8031336 Restore hasPostISelHook tblgen flag.
No functionality change. The hook makes it explicit which patterns
require "special" handling. i.e. it self-documents tblgen
deficiencies. I plan to add verification in ExpandISelPseudos and
Thumb2SizeReduce to catch any missing hasPostISelHooks. Otherwise it's
too fragile.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140160 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20 18:22:31 +00:00
Akira Hatanaka
70303688bc Add mips64 & mips64el to Triple. Patch by Liu with modifications.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140157 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20 18:09:37 +00:00
NAKAMURA Takumi
16ddc062c6 include/llvm/Config/llvm-config.h.in: Add the entry LLVM_PATH_XDOT_PY, for consistency against llvm-config.h.cmake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140137 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20 03:54:11 +00:00
NAKAMURA Takumi
81da2e1ada include/llvm/Config: Reorder LLVM_HAS_ATOMICS along config.h.in for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140136 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20 03:54:05 +00:00
NAKAMURA Takumi
f9ef3b6e9e include/llvm/Config/config.h.cmake: Unbreak CMake build to tweak LLVM_HAS_ATOMICS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140135 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20 03:53:57 +00:00
Andrew Trick
4815d56bb2 ARM isel bug fix for adds/subs operands.
Modified ARMISelLowering::AdjustInstrPostInstrSelection to handle the
full gamut of CPSR defs/uses including instructins whose "optional"
cc_out operand is not really optional. This allowed removal of the
hasPostISelHook to simplify the .td files and make the implementation
more robust.
Fixes rdar://10137436: sqlite3 miscompile


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140134 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20 03:17:40 +00:00
Eric Christopher
eae5a13078 Remove more of llvmc and dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140121 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20 00:34:27 +00:00
Eric Christopher
776d99342b Regenerate configure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140065 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19 20:46:12 +00:00
Eric Christopher
627445f3e6 Rename LLVM_MULTITHREADED define and fix build without threads.
Patch by Arrowdodger.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140064 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19 20:43:23 +00:00
Ted Kremenek
166e0539c9 Add ImmutableMapRef and ImmutableSetRef, which consolidate Immutable[Map,Set] and its Factory. This may eventually replace Immtuable[Map,Set].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139967 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-16 23:01:25 +00:00
Owen Anderson
98c5ddabca Don't attach annotations to MCInst's. Instead, have the disassembler return, and the printer accept, an annotation string which can be passed through if the client cares about annotations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139876 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 23:38:46 +00:00
Ivan Krasin
71280b55a3 use 64-bit types instead of off_t/size_t to avoid the issue when
gold plugin is built with Large File Support (sizeof(off_t) == 64 on i686)
and the rest of LLVM is built w/o Large File Support
(sizeof(off_t) == 32 on i686) which corrupts the stack.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139873 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 23:13:00 +00:00
Benjamin Kramer
c9935f378e Unbreak the build for compilers that don't include cstdint everywhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139868 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 22:26:16 +00:00
Benjamin Kramer
b3514569d0 CommandLine: Add support for 64 bit unsigned integer options.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139848 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 21:17:37 +00:00
Benjamin Kramer
101b1c5ff1 DWARF: Put all the pieces we have together and provide a single accessor to DIContext that provides line information when given an address.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139836 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 20:43:22 +00:00
Owen Anderson
ede042dc8d Add support for stored annotations to MCInst, and provide facilities for MC-based InstPrinters to print them out. Enhance the ARM and X86 InstPrinter's to do so in verbose mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139820 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 18:36:29 +00:00
Jakob Stoklund Olesen
a1dd30553d Use getPrevSlot() instead of getPrevIndex().
The getPrevIndex() function moves to the same slot in the previous
instruction.  For getVNInfoBefore(), we just need the previous slot in
the same instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139793 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 15:31:49 +00:00
Nick Lewycky
2460f32a8a Despite what the GCC wiki says, a quick search shows that
DW_AT_GNU_template_name = 0x2110, not 0x2108. That would explain those 
attr #0x2110 under the DW_TAG_GNU_template_template_param I'm seeing. Migrate
from documented values to reality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139785 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 05:30:55 +00:00
Nick Lewycky
3a4178ea13 Add some more DWARF extensions from:
1. http://gcc.gnu.org/wiki/TemplateParmsDwarf
2. ftp://ftp.software.ibm.com/software/os390/czos/dwarf/mips_extensions.pdf


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139784 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 05:21:03 +00:00
Jakob Stoklund Olesen
df8412c4c1 Stop verifying hasPHIKill() flags.
There is only one legitimate use remaining, in addIntervalsForSpills().
All other calls to hasPHIKill() are only used to update PHIKill flags.

The addIntervalsForSpills() function is part of the old spilling
framework, only used by linearscan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139783 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 05:16:30 +00:00
Jakob Stoklund Olesen
573a32d487 Leave hasPHIKill flags alone in LiveInterval::RenumberValues.
It is conservatively correct to keep the hasPHIKill flags, even after
deleting PHI-defs.

The calculation can be very expensive after taildup has created a
quadratic number of indirectbr edges in the CFG, and the hasPHIKill flag
isn't used for anything after RenumberValues().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139780 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 04:37:18 +00:00
Nick Lewycky
f59c532cfd Update Dwarf enums list for DWARF 4.
Note that DW_TAG_rvalue_reference_type is officially 0x42, not 0x41.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139779 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 04:23:44 +00:00
Andrew Trick
b1afbac64b [regcoalescing] bug fix for RegistersDefinedFromSameValue.
An improper SlotIndex->VNInfo lookup was leading to unsafe copy removal.
Fixes PR10920 401.bzip2 miscompile with no IV rewrite.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139765 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 01:09:33 +00:00
Douglas Gregor
d26d6b68dd Update the comment for system_temp_directory() to indicate when it
will ignore the erasedOnReboot option, and properly escape the
backslash in "C:\TEMP". Thanks to Aaron and Francois.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139755 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14 23:21:47 +00:00
Devang Patel
734a67cda5 Add support to emit debug info for C++0x nullptr type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139751 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14 23:13:28 +00:00
Douglas Gregor
55cf815e19 Add a simple routine to determine the typical system directory for
temporary data. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139725 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14 20:27:01 +00:00
Jim Grosbach
6148225b95 Move state var to private class member.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139697 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14 16:37:04 +00:00
Douglas Gregor
dcd9996241 Add APInt support for converting to/from hexatridecimal strings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139695 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14 15:54:46 +00:00
Benjamin Kramer
ac241fe9f0 Object: make the following changes into SymbolRef
- Add enum SymbolType and function getSymbolType()
- Add function isGlobal() - it's returns true for symbols that can be used in another objects, such as library functions.
- Rename function getAddress() to getOffset() and add new function getAddress(), because currently getAddress() returns section offset of symbol first byte. new getAddress() return symbol address.
- Change usage SymbolRef::getAddress() to getOffset() in tools/llvm-nm and tools/llvm-objdump.

Patch by Danil Malyshev!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139683 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14 01:22:52 +00:00
Benjamin Kramer
357b571841 Remove unimplemented function prototypes from PathV2. They can be readded when someone cares enough.
Patch by Aaron Ballman!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139682 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14 01:14:36 +00:00
Benjamin Kramer
836623420d ObjectFile: Add support for mach-o-style dSYM companion files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139676 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14 00:39:22 +00:00
Eric Christopher
e640a228f6 Fix indenting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139670 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13 23:45:39 +00:00
Kevin Enderby
f1c21a8da6 First step in supporting #line directives in assembler. This step parses the
#line directives with the needed support in the lexer.  Next will be to build
a simple file/line# table mapping source SMLoc's for later use by diagnostics.
And the last step will be to get the diagnostics to use the mapping for file
and line numbers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139669 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13 23:45:18 +00:00
Benjamin Kramer
edca044ab8 Remove include of header that doesn't exist (yet).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139629 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13 19:55:32 +00:00
Benjamin Kramer
72c0d7fdd3 Sketch out a DWARF parser.
This introduces a new library to LLVM: libDebugInfo. It will provide debug information
parsing to LLVM. Much of the design and some of the code is taken from the LLDB project.

It also contains an llvm-dwarfdump tool that can dump the abbrevs and DIEs from an
object file. It can be used to write tests for DWARF input and output easily.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139627 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13 19:42:23 +00:00
Benjamin Kramer
8c74f7f299 Add the DataExtractor utility class.
It is an endian-aware helper that can read data from a StringRef. It will
come in handy for DWARF parsing. This class is inspired by LLDB's
DataExtractor, but is stripped down to the bare minimum needed for DWARF.

Comes with unit tests!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139626 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13 19:42:16 +00:00
Jakob Stoklund Olesen
ee5655dca4 Switch extendInBlock() to take a kill slot instead of the last use slot.
Three out of four clients prefer this interface which is consistent with
extendIntervalEndTo() and LiveRangeCalc::extend().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139604 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13 16:47:56 +00:00
Devang Patel
de9ddbf19a Maintain hexadecimal order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139601 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13 16:39:59 +00:00
Devang Patel
5443140021 Add DW_ATE_UTF, which clang started using in my previous commit!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139503 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12 17:18:20 +00:00
Nadav Rotem
fbad25e120 CR fixes per Bruno's request.
Undo the changes from r139285 which added custom lowering to vselect.
Add tablegen lowering for vselect.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139479 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-11 15:02:23 +00:00
Duncan Sands
73c8415d90 Mark the eh.typeid.for intrinsic as being 'const', which it is inside
any given function.  As pointed out by John McCall, this is needed to
have redundant eh.typeid.for tests be eliminated in the presence of
cleanups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139360 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09 07:50:37 +00:00
Devang Patel
9aee335c23 Directly point debug info to the stack slot of the arugment, instead of trying to keep track of vreg in which it the arugment is copied. The LiveDebugVariable can keep track of variable's ranges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139330 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-08 22:59:09 +00:00
Benjamin Kramer
0fcab076f0 Add support for relocations to ObjectFile.
Patch by Danil Malyshev!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139314 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-08 20:52:17 +00:00
James Molloy
b950585cc5 Refactor instprinter and mcdisassembler to take a SubtargetInfo. Add -mattr= handling to llvm-mc. Reviewed by Owen Anderson.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139237 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-07 17:24:38 +00:00
Duncan Sands
758ba1f4ed When inlining exception handling code into another function, ensure that
duplicate tests are eliminated (for example if the two functions both have
a catch clause catching the same type, ensure the redundant one is removed).
Note that it would probably be safe to say that eh.typeid.for is 'const',
but since two calls to it with the same argument can give different results
(but only if the calls are in different functions), it seems more correct to
mark it only 'pure'; this doesn't get in the way of the optimization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139236 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-07 16:44:14 +00:00
Eli Friedman
981a010c09 Relax the MemOperands on atomics a bit. Fixes -verify-machineinstrs failures for atomic laod/store on ARM.
(The fix for the related failures on x86 is going to be nastier because we actually need Acquire memoperands attached to the atomic load instrs, etc.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139221 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-07 02:23:42 +00:00
Duncan Sands
28b77e968d Add codegen support for vector select (in the IR this means a select
with a vector condition); such selects become VSELECT codegen nodes.
This patch also removes VSETCC codegen nodes, unifying them with SETCC
nodes (codegen was actually often using SETCC for vector SETCC already).
This ensures that various DAG combiner optimizations kick in for vector
comparisons.  Passes dragonegg bootstrap with no testsuite regressions
(nightly testsuite as well as "make check-all").  Patch mostly by
Nadav Rotem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139159 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06 19:07:46 +00:00
Duncan Sands
4a544a79bd Split the init.trampoline intrinsic, which currently combines GCC's
init.trampoline and adjust.trampoline intrinsics, into two intrinsics
like in GCC.  While having one combined intrinsic is tempting, it is
not natural because typically the trampoline initialization needs to
be done in one function, and the result of adjust trampoline is needed
in a different (nested) function.  To get around this llvm-gcc hacks the
nested function lowering code to insert an additional parent variable
holding the adjust.trampoline result that can be accessed from the child
function.  Dragonegg doesn't have the luxury of tweaking GCC code, so it
stored the result of adjust.trampoline in the memory GCC set aside for
the trampoline itself (this is always available in the child function),
and set up some new memory (using an alloca) to hold the trampoline.
Unfortunately this breaks Go which allocates trampoline memory on the
heap and wants to use it even after the parent has exited (!).  Rather
than doing even more hacks to get Go working, it seemed best to just use
two intrinsics like in GCC.  Patch mostly by Sanjoy Das.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139140 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06 13:37:06 +00:00
Duncan Sands
dabc280672 Add some simple insertvalue simplifications, for the purpose of cleaning
up do-nothing exception handling code produced by dragonegg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139113 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-05 06:52:48 +00:00
Andrew Trick
252ef7a61a Comment and clarifying assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139036 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02 21:20:46 +00:00
Duncan Sands
147272b8a7 Darwin wants ctors/dtors to be ordered the other way round to linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139015 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02 18:07:19 +00:00
Benjamin Kramer
36a16015ac Don't drop alignment info on local common symbols.
- On COFF the .lcomm directive has an alignment argument.
- On ELF we fall back to .local + .comm

Based on a patch by NAKAMURA Takumi.

Fixes PR9337, PR9483 and PR10128.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138976 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01 23:04:27 +00:00
Rafael Espindola
f940a1a869 Remove the old tail duplication pass. It is not used and is unable to update
ssa, so it has to be run really early in the pipeline. Any replacement
should probably use the SSAUpdater.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138841 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30 23:03:45 +00:00
Benjamin Kramer
d4522460d4 Teach macho-dump to dump the uleb128s referred to by linkedit_data segments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138836 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30 22:10:58 +00:00
Jeffrey Yasskin
cda2a146d1 Fix C++0x narrowing errors when char is unsigned.
In the case of EDInstInfo, this would actually cause a bug when -1 became 255
and was then compared >=0 in llvm-mc/Disassembler.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138825 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30 20:53:29 +00:00
Nicolas Geoffray
5af214fef0 The code model of JIT should default to JITDefault.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138819 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30 19:50:33 +00:00
Rafael Espindola
76927d7586 Emit segmented-stack specific code into function prologues for
X86. Modify the pass added in the previous patch to call this new
code.

This new prologues generated will call a libgcc routine (__morestack)
to allocate more stack space from the heap when required

Patch by Sanjoy Das.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138812 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30 19:39:58 +00:00
Rafael Espindola
0f9827cd94 Command line option to enable support for segmented stacks:
-segmented-stacks.
Patch by Sanjoy Das!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138811 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30 19:29:02 +00:00
Evan Cheng
37fefc20d3 Follow up to r138791.
Add a instruction flag: hasPostISelHook which tells the pre-RA scheduler to
call a target hook to adjust the instruction. For ARM, this is used to
adjust instructions which may be setting the 's' flag. ADC, SBC, RSB, and RSC
instructions have implicit def of CPSR (required since it now uses CPSR physical
register dependency rather than "glue"). If the carry flag is used, then the
target hook will *fill in* the optional operand with CPSR. Otherwise, the hook
will remove the CPSR implicit def from the MachineInstr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138810 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30 19:09:48 +00:00
Benjamin Kramer
9942acab0a Teach macho-dump how to dump linkedit_data load commands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138807 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30 18:33:37 +00:00
Benjamin Kramer
bc6b89ed31 Add load commands from Lion to Macho.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138806 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30 18:33:34 +00:00
Jim Grosbach
f8e1e3e729 Thumb2 parsing and encoding for IT blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138773 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29 22:24:09 +00:00
Jim Grosbach
d33b276bcb Tidy up. Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138767 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29 21:15:20 +00:00
Jim Grosbach
7e0d22cbf7 Tidy up. 80 columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138750 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29 18:22:04 +00:00
Andrew Trick
0e122d1c24 Reapply r138695. Fix PassManager stack depths.
Patch by Xiaoyi Guo!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138737 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29 17:07:00 +00:00
Tobias Grosser
05d7138018 Add AMDIL as valid target triple to LLVM.
Submitted by: Villmow, Micah <Micah.Villmow@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138734 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29 15:44:55 +00:00
Andrew Trick
8592a0cda4 Reverting r138695 to see if it fixes clang self host.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138701 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27 06:10:16 +00:00
Andrew Trick
b846192230 Fix PassManager stack depths.
Patch by Xiaoyi Guo!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138695 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27 02:11:03 +00:00
Andrew Trick
5434c1e73b LoopInfo::updateUnloop fix, and verify Block->Loop maps.
Fixes an oversight, and adds verification to catch it in the unloop.ll tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138622 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26 03:06:34 +00:00
Bill Wendling
c82a61c6c6 Initial check in that will auto-upgrade the old EH scheme to the new EH scheme.
This upgrade suffers from the problems of the old EH scheme - i.e., that the
calls to llvm.eh.exception() and llvm.eh.selector() can wander off and get
lost. It makes a valiant effort to reclaim these little lost lambs.

This is a first draft, so it hasn't yet been hooked up to the parser.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138602 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25 23:22:40 +00:00
David Greene
32c371f0df Constify Comparison
Make ConstantInt::uge() const so it may be used in const contexts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138579 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25 20:18:22 +00:00
Eli Friedman
327236cd6c Basic x86 code generation for atomic load and store instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138478 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24 20:50:09 +00:00
Nadav Rotem
4c7c0f2353 Implement Constant::isAllOnesValue(). Fix ConstantFolding to use the new api.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138469 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24 20:18:38 +00:00
Evan Cheng
3e74d6fdd2 Move TargetRegistry and TargetSelect from Target to Support where they belong.
These are strictly utilities for registering targets and components.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138450 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24 18:08:43 +00:00
Nate Begeman
7ced7763ca Add some useful accessors to c++ api that appear to be missing from the c api
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138371 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-23 20:27:46 +00:00
Evan Cheng
7801136b95 Some refactoring so TargetRegistry.h no longer has to include any files
from MC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138367 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-23 20:15:21 +00:00
Eric Christopher
acc8f2d938 Revert "Address Duncan's CR request:"
This reverts commit 20a05be15e. (svn rev 138340)

Conflicts:

	test/Transforms/InstCombine/bitcast.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138366 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-23 20:11:10 +00:00
Nadav Rotem
20a05be15e Address Duncan's CR request:
1. Cleanup the tests in ConstantFolding.cpp
2. Implement isAllOnes for Constant, ConstantFP, ConstantVector





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138340 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-23 17:48:43 +00:00
Ivan Krasin
38fb2db6c9 This patch adds support of le32 pseudo-cpu that stands for generic
32-bit little-endian CPU. Used by PNaCl and Emscripten.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138335 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-23 16:59:00 +00:00
Benjamin Kramer
6667e54296 Add an MCInstrAnalysis version of isCall.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138305 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-22 23:41:41 +00:00
Jay Foad
ff7782bcc9 Remove DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS, folding its
functionality into DEFINE_TRANSPARENT_OPERAND_ACCESSORS. A side-effect
of this is that the operand accessors for Constants will tolerate NULL
operands, fixing PR10663.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138230 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-22 09:37:03 +00:00
Devang Patel
93d39be530 Do not use named md nodes to track variables that are completely optimized. This does not scale while doing LTO with debug info. New approach is to include list of variables in the subprogram info directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138145 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-19 23:28:12 +00:00
Jakob Stoklund Olesen
cafe614035 Add IntervalMap::const_iterator::atBegin().
It returns true when operator--() can be called.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138107 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-19 22:04:19 +00:00
Benjamin Kramer
613d13beb0 C API functions must be able to see their extern "C" definitions, or it will be impossible to call them from C.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138022 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-19 01:36:54 +00:00
Bill Wendling
7e8840c4d9 Add SplitLandingPadPredecessors().
SplitLandingPadPredecessors is similar to SplitBlockPredecessors in that it
splits the current block and attaches a set of predecessors to the new basic
block. However, it differs from SplitBlockPredecessors in that it's specifically
designed to handle landing pad blocks.

Two new basic blocks are created: one that is has the vector of predecessors as
its predecessors and one that has the remaining predecessors as its
predecessors. Those two new blocks then receive a cloned copy of the landingpad
instruction from the original block. The landingpad instructions are joined in a
PHI, etc. Like SplitBlockPredecessors, it updates the LLVM IR, AliasAnalysis,
DominatorTree, DominanceFrontier, LoopInfo, and LCCSA analyses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138014 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-19 00:05:40 +00:00
Ivan Krasin
fb23462889 Add NativeClient operating system support.
This patch adds support of NativeClient (*-*-nacl) OS support to LLVM.
It's already supported in autoconf/config.sub.

The motivation for this change is to start upstreaming PNaCl work. The
whole set of patches include llvm backends (i686, x86_64, ARM),
llvm-gcc (probably, would not be upstreamed because it's deprecated)
and clang (the work has been just started, the amount of changes is
going to be low and the most of the work is expected to be done close
to the mainline).




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138005 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-18 22:54:21 +00:00
Ivan Krasin
74af88a666 FastISel: avoid function calls between the materialization of the constant and its use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137993 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-18 22:06:10 +00:00
Chris Lattner
489fee1b64 Rip out the old StructType APIs as warned about on llvmdev last week.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137953 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-18 17:39:28 +00:00
Richard Osborne
c4dcf323cc Add intrinsics for SETEV, GETED, GETET.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137938 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-18 13:00:48 +00:00
Bill Wendling
2ac0e6be05 Add the support in code-gen for the landingpad instruction lowering.
The landingpad instruction is lowered into the EXCEPTIONADDR and EHSELECTION
SDNodes. The information from the landingpad instruction is harvested by the
'AddLandingPadInfo' function. The new EH uses the current EH scheme in the
back-end. This will change once we switch over to the new scheme. (Reviewed by
Jakob!)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137880 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-17 21:56:44 +00:00
Bill Wendling
c1dbf0cdb4 Remove unneeded sentence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137854 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-17 19:33:27 +00:00
Jordy Rose
c68c8623d0 ...and make sure DynamicLibrary builds by removing "const" from the Invalid placeholder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137843 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-17 18:28:14 +00:00
Jordy Rose
77b6f2fd22 Don't use NULL to represent an invalid library; Cygwin uses this for RTLD_DEFAULT. Caught by Takumi.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137841 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-17 18:23:17 +00:00
Owen Anderson
83e3f67fb6 Allow the MCDisassembler to return a "soft fail" status code, indicating an instruction that is disassemblable, but invalid. Only used for ARM UNPREDICTABLE instructions at the moment.
Patch by James Molloy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-17 17:44:15 +00:00
Jordy Rose
0bce85fbfa Use DynamicLibrary instances as a way to get symbols from a specific library. Preparation for upcoming (preliminary) support for plugins for the static analyzer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137791 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-17 00:29:32 +00:00
Devang Patel
94c7ddb6f5 Until now all debug info MDNodes referred to a root MDNode, a compile unit. This simplified handling of these needs in dwarf writer. However, one side effect of this is that during link time optimization all these MDNodes are _not_ uniqued. In other words there will be N number of MDNodes describing "int", "char" and all other types, which would suddenly grow when each object file starts using libraries like STL.
MDNodes graph structure such that compiler unit keeps track of important MDNodes and update dwarf writer to process mdnodes top-down instead of bottom up.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137778 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 22:09:43 +00:00
Devang Patel
d6a49773ff Increment debug info version to accommodate upcoming change in debug info node structure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137751 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 21:00:05 +00:00
Bill Wendling
d2e103daf8 Add getFirstInsertionPt() method.
getFirstInsertionPt() returns an iterator to the first insertion point in a
basic block. This is after all PHIs and any other instruction which is required
to be at the top of the basic block (like LandingPadInst).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137744 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 20:42:52 +00:00
Jim Grosbach
1b84cce77f Remove unused Target argument from AsmParser construction methods.
The argument is unused, and is a layering violation in any case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137735 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 18:33:49 +00:00
Jim Grosbach
ac29c0af3d Remove unused forward declaration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137734 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 18:31:36 +00:00
Jim Grosbach
0ba45d4fb3 Tidy up. Trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137721 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 16:38:17 +00:00
David Chisnall
7a817eae6c Add a mechanism for optimisation plugins to register passes that all front ends can use without needing to be aware of the plugin (or the plugin be aware of the front end).
Before 3.0, I'd like to add a mechanism for automatically loading a set of plugins from a config file.  API suggestions welcome...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137717 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 13:58:41 +00:00
Rafael Espindola
48c4c6807b Remove unimplemented method. Fixes PR10658.
Thanks to Jonas Gafele for noticing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137716 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 13:53:50 +00:00
Jim Grosbach
19cb7f491f MCTargetAsmParser target match predicate support.
Allow a target assembly parser to do context sensitive constraint checking
on a potential instruction match. This will be used, for example, to handle
Thumb2 IT block parsing.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137675 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 23:03:29 +00:00
Devang Patel
6326a4238d Add a finalize() hook, that'll let DIBuilder construct compile unit lazily.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137673 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 23:00:00 +00:00
Jim Grosbach
47a24ab4d7 Move MatchResultTy enum into base class definition.
No need for it to be redefined as part of every derived target asm parser
class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137649 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 20:53:08 +00:00
Devang Patel
6f9d8ffe5e Refactor. Global variables are part of compile unit so let CompileUnit create new global variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137621 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 17:57:41 +00:00
Jim Grosbach
bb0752b040 Tidy up trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137619 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 17:30:25 +00:00
Nick Lewycky
53b2b73643 Remove the last improper use of getGlobalContext() from LLVM.
This caused a race condition where a thread calls ~LLVMContextImpl which calls
Module::dropAllReferences which calls begin() on an empty ilist that would
create the sentinel, which racily accesses the global context.

This can not be fixed by locking inside createSentinel because the lock would
need to be shared with all users of the global context, including those that
reside outside LLVM's own code.


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2011-08-13 01:04:44 +00:00
Bill Wendling
e6e8826870 Initial commit of the 'landingpad' instruction.
This implements the 'landingpad' instruction. It's used to indicate that a basic
block is a landing pad. There are several restrictions on its use (see
LangRef.html for more detail). These restrictions allow the exception handling
code to gather the information it needs in a much more sane way.

This patch has the definition, implementation, C interface, parsing, and bitcode
support in it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137501 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 20:24:12 +00:00
Devang Patel
92a36e6583 Constify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137489 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 18:18:02 +00:00
Devang Patel
cd9f6c53de Use ArrayRef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137485 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 18:10:19 +00:00
Chris Lattner
d95f8f6ada add ifdef's to let people easily remove these dead api for testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137483 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 18:08:19 +00:00
Chris Lattner
f4bbcaabeb add two missing function impls
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137470 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 17:43:05 +00:00
Chris Lattner
2c38d65fd9 add new accessors to reflect new terminology in struct types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137468 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 17:31:02 +00:00
Duncan Sands
1f6a329f79 Silence a bunch (but not all) "variable written but not read" warnings
when building with assertions disabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137460 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 14:54:45 +00:00
Chris Lattner
823eb1ca11 Fix an obscure bug in PointerUnion that would bite PointerUnion3/4. Basically,
when checking isNull(), we'd pick off the sentinel bit for the outer 
PointerUnion, but would not recursively convert the inner pointerunion to bool,
so if *its* sentinel bit is set, isNull() would incorrectly return false.

No testcase, because someone hit this when they were trying to refactor code
to use PointerUnion3, but they since found a better solution.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137428 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 04:31:38 +00:00
NAKAMURA Takumi
1221139f10 include/llvm/Config/config.h.cmake: Reorder to follow config.h.in, and import stuff from llvm-config.h.cmake and clang/config.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137424 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 03:27:54 +00:00
NAKAMURA Takumi
8776fa44d4 CMake: Eliminate unused checks and #undef(s) as below;
STACK_DIRECTION
YYTEXT_POINTER
HAVE_NAMESPACES
HAVE_STD_ITERATOR
HAVE_FWD_ITERATOR
HAVE_BI_ITERATOR
HAVE_GLOBAL_HASH_MAP
HAVE_GLOBAL_HASH_SET
HAVE_GNU_EXT_HASH_MAP
HAVE_GNU_EXT_HASH_SET
HAVE_STD_EXT_HASH_MAP
HAVE_STD_EXT_HASH_SET

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137423 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 03:27:48 +00:00
NAKAMURA Takumi
b43b09eef5 include/llvm/Config/llvm-config.h: Reorder and reword to follow (generated) config.h.in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 01:50:50 +00:00
NAKAMURA Takumi
4362c6225e configure: Update since r136721.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137412 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 01:50:43 +00:00
Nick Lewycky
2fc75d5d60 A virtual destructor for the class with virtual methods!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137400 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 00:32:15 +00:00
Andrew Trick
b1831c6640 Allow loop unrolling to get known trip counts from ScalarEvolution.
SCEV unrolling can unroll loops with arbitrary induction variables. It
is a prerequisite for -disable-iv-rewrite performance. It is also
easily handles loops of arbitrary structure including multiple exits
and is generally more robust.

This is under a temporary option to avoid affecting default
behavior for the next couple of weeks. It is needed so that I can
checkin unit tests for updateUnloop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137384 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-11 23:36:16 +00:00
NAKAMURA Takumi
4c7324d032 DataTypes.h.cmake: Tweak INT32_MIN for MSVC. MSC treats -2147483648 as -(2147483648U).
It caused an unexpected behavior since r137254.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137365 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-11 21:59:55 +00:00
Chad Rosier
78eb93c591 Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137286 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-11 00:22:48 +00:00
Devang Patel
5bc942cc3c Stay within 80 columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137283 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 23:58:09 +00:00
Andrew Trick
fb62b8deb3 Reapplying r136844.
An algorithm for incrementally updating LoopInfo within a
LoopPassManager. The incremental update should be extremely cheap in
most cases and can be used in places where it's not feasible to
regenerate the entire loop forest.

- "Unloop" is a node in the loop tree whose last backedge has been removed.
- Perform reverse dataflow on the block inside Unloop to propagate the
  nearest loop from the block's successors.
- For reducible CFG, each block in unloop is visited exactly
  once. This is because unloop no longer has a backedge and blocks
  within subloops don't change parents.
- Immediate subloops are summarized by the nearest loop reachable from
  their exits or exits within nested subloops.
- At completion the unloop blocks each have a new parent loop, and
  each immediate subloop has a new parent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137276 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 23:22:57 +00:00
Andrew Trick
d8a2f3ab91 Cleanup. Remove an extraneous GraphTraits specialization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137264 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 22:55:39 +00:00
Devang Patel
b549bcfe6c Distinguish between two copies of one inlined variable. Take 2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137253 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 21:50:54 +00:00
Devang Patel
103b8e653c Provide utility to extract and use lexical scoping information from machine instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137237 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 19:04:06 +00:00
Andrew Trick
bddb7f8210 Cleanup. Make ScalarEvolution an explicit argument of the
SimplifyIndVar utility since it is required.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137202 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 04:22:26 +00:00
Andrew Trick
4b4bb71bcd Added a SimplifyIndVar utility to simplify induction variable users
based on ScalarEvolution without changing the induction variable phis.

This utility is the main tool of IndVarSimplifyPass, but the pass also
restructures induction variables in strange ways that are sensitive to
pass ordering. This provides a way for other loop passes to simplify
new uses of induction variables created during transformation. The
utility may be used by any pass that preserves ScalarEvolution. Soon
LoopUnroll will use it.

The net effect in this checkin is to cleanup the IndVarSimplify pass
by factoring out the SimplifyIndVar algorithm into a standalone utility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137197 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 03:46:27 +00:00
Andrew Trick
2d31ae3d9d Cleanup. Added LoopBlocksDFS::perform for simple clients.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137195 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 01:59:05 +00:00
Peter Collingbourne
59c1ba96ba Preserve the name for this variant of IRBuilder::CreateCall
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137192 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 01:10:08 +00:00
Andrew Trick
306afdf443 Cleanup. Avoid relying on specialization of std::distance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137191 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 00:49:12 +00:00
Andrew Trick
b1eede1281 Fix the LoopUnroller to handle nontrivial loops and partial unrolling.
These are not individual bug fixes. I had to rewrite a good chunk of
the unroller to make it sane. I think it was getting lucky on trivial
completely unrolled loops with no early exits. I included some fairly
simple unit tests for partial unrolling. I didn't do much stress
testing, so it may not be perfect, but should be usable now.


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2011-08-10 00:28:10 +00:00
Jakob Stoklund Olesen
c66d36028b Trim an unneeded header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137184 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09 23:49:21 +00:00
Eli Friedman
21006d40ac Representation of 'atomic load' and 'atomic store' in IR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09 23:02:53 +00:00
Rafael Espindola
dd3d68f7a9 Add missing file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137162 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09 22:19:52 +00:00
Jakob Stoklund Olesen
6d1fd0b979 Move CalculateRegClass to MRI::recomputeRegClass.
This function doesn't have anything to do with spill weights, and MRI
already has functions for manipulating the register class of a virtual
register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137123 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09 16:46:27 +00:00
Devang Patel
48d726fbce Provide method to print variable's extended name which includes inline location.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137095 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09 01:03:14 +00:00
Jakob Stoklund Olesen
27215676c7 Refer to the RegisterCoalescer pass by ID.
A public interface is no longer needed since RegisterCoalescer is not an
analysis any more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137082 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09 00:29:53 +00:00
Jakob Stoklund Olesen
2df3f58a0b Hoist hasLoadFromStackSlot and hasStoreToStackSlot.
These the methods are target-independent since they simply scan the
memory operands.  They can live in TargetInstrInfoImpl.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137063 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-08 20:53:24 +00:00
Benjamin Kramer
08de97a5b0 Pacify virtual dtor warnings and cmake buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137060 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-08 19:09:02 +00:00
Benjamin Kramer
41ab14b725 Add MCInstrAnalysis class. This allows the targets to specify own versions of MCInstrDescs functions.
- Add overrides for ARM.
- Teach llvm-objdump to use this instead of plain MCInstrDesc.

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2011-08-08 18:56:44 +00:00
Chandler Carruth
4147f39769 Temporarily revert r135528 which distinguishes between two copies of one
inlined variable, based on the discussion in PR10542.

This explodes the runtime of several passes down the pipeline due to
a large number of "copies" remaining live across a large function. This
only shows up with both debug and opt, but when it does it creates
a many-minute compile when self-hosting LLVM+Clang. There are several
other cases that show these types of regressions.

All of this is tracked in PR10542, and progress is being made on fixing
the issue. Once its addressed, the re-instated, but until then this
restores the performance for self-hosting and other opt+debug builds.

Devang, let me know if this causes any trouble, or impedes fixing it in
any way, and thanks for working on this!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136953 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-05 00:51:31 +00:00
Duncan Sands
1203486d92 Fix a place that was clearly forgotten when the type legalization
logic moved over to its own enum.  Noticed by Andrey Karpov with
the PVS-studio tool.


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2011-08-04 16:01:54 +00:00
Andrew Trick
0712108d22 Reverting r136884 updateUnloop, which crashed a linux builder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136857 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-04 01:04:37 +00:00
Andrew Trick
762797d1af An algorithm for incrementally updating LoopInfo within a
LoopPassManager. The incremental update should be extremely cheap in
most cases and can be used in places where it's not feasible to
regenerate the entire loop forest.

- "Unloop" is a node in the loop tree whose last backedge has been removed.
- Perform reverse dataflow on the block inside Unloop to propagate the
  nearest loop from the block's successors.
- For reducible CFG, each block in unloop is visited exactly
  once. This is because unloop no longer has a backedge and blocks
  within subloops don't change parents.
- Immediate subloops are summarized by the nearest loop reachable from
  their exits or exits within nested subloops.
- At completion the unloop blocks each have a new parent loop, and
  each immediate subloop has a new parent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136844 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 23:50:25 +00:00
Andrew Trick
fbfb806e3f whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136840 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 23:43:49 +00:00