Commit Graph

2267 Commits

Author SHA1 Message Date
Dan Gohman
3974667c1a Add a new bit to SUnit to record whether a node has implicit physreg
defs, regardless of whether they are actually used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67528 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-23 16:10:52 +00:00
Dan Gohman
f49f0cdb48 Clarify a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67525 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-23 15:54:02 +00:00
Sebastian Redl
48fe63526e Fix the Win32 VS2008 build:
- Make type declarations match the struct/class keyword of the definition.
 - Move AddSignalHandler into the namespace where it belongs.
 - Correctly call functions from template base.
 - Some other small changes.
With this patch, LLVM and Clang should build properly and with far less noise under VS2008.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-19 23:26:52 +00:00
Evan Cheng
a24752ff43 Added MachineInstr::isRegTiedToDefOperand to check for two-addressness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67335 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-19 20:30:06 +00:00
Dan Gohman
56e04a80b3 SADDO and UADDO are commutative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67319 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-19 18:53:45 +00:00
Dan Gohman
14ea1ec232 Fix FastISel's assumption that i1 values are always zero-extended
by inserting explicit zero extensions where necessary. Included
is a testcase where SelectionDAG produces a virtual register
holding an i1 value which FastISel previously mistakenly assumed
to be zero-extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66941 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13 20:42:20 +00:00
Evan Cheng
1606e8e4cd Fix some significant problems with constant pools that resulted in unnecessary paddings between constant pool entries, larger than necessary alignments (e.g. 8 byte alignment for .literal4 sections), and potentially other issues.
1. ConstantPoolSDNode alignment field is log2 value of the alignment requirement. This is not consistent with other SDNode variants.
2. MachineConstantPool alignment field is also a log2 value.
3. However, some places are creating ConstantPoolSDNode with alignment value rather than log2 values. This creates entries with artificially large alignments, e.g. 256 for SSE vector values.
4. Constant pool entry offsets are computed when they are created. However, asm printer group them by sections. That means the offsets are no longer valid. However, asm printer uses them to determine size of padding between entries.
5. Asm printer uses expensive data structure multimap to track constant pool entries by sections.
6. Asm printer iterate over SmallPtrSet when it's emitting constant pool entries. This is non-deterministic.


Solutions:
1. ConstantPoolSDNode alignment field is changed to keep non-log2 value.
2. MachineConstantPool alignment field is also changed to keep non-log2 value.
3. Functions that create ConstantPool nodes are passing in non-log2 alignments.
4. MachineConstantPoolEntry no longer keeps an offset field. It's replaced with an alignment field. Offsets are not computed when constant pool entries are created. They are computed on the fly in asm printer and JIT.
5. Asm printer uses cheaper data structure to group constant pool entries.
6. Asm printer compute entry offsets after grouping is done.
7. Change JIT code to compute entry offsets on the fly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66875 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13 07:51:59 +00:00
Evan Cheng
a2e6435e48 Two coalescer fixes in one.
1. Use the same value# to represent unknown values being merged into sub-registers.
2. When coalescer commute an instruction and the destination is a physical register, update its sub-registers by merging in the extended ranges.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-11 00:03:21 +00:00
Bill Wendling
163ba3fa39 Refine the Dwarf writer timers so that they measure exception writing and debug
writing individually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66577 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-10 21:23:25 +00:00
Bill Wendling
91b8b8010a Add a timer to the DwarfWriter pass that measures the total time it takes to
emit exception and debug Dwarf info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66571 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-10 20:41:52 +00:00
Chris Lattner
3e0cc2634e wire up support for emitting "special" values from inline asm
format strings with the standard ${:foo} syntax.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66527 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-10 05:37:13 +00:00
Bill Wendling
9aaa0796ad Revert r66415. It's causing failures during bootstrap builds:
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/libgcc2.c: In function '__muldi3':
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/libgcc2.c:567: internal compiler error: Bus error
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/libgcc2.c: In function '__lshrdi3':
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/libgcc2.c:421: internal compiler error: Bus error
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
make[5]: *** [libgcc/./_lshrdi3.o] Error 1
make[5]: *** Waiting for unfinished jobs....
make[5]: *** [libgcc/./_muldi3.o] Error 1
make[5]: *** [libgcc/./_negdi2.o] Error 1


--- Reverse-merging (from foreign repository) r66415 into '.':
U    include/llvm/BasicBlock.h
U    include/llvm/ADT/ilist_node.h
U    include/llvm/CodeGen/SelectionDAG.h
U    include/llvm/CodeGen/MachineFunction.h
U    include/llvm/CodeGen/MachineBasicBlock.h
U    include/llvm/Function.h



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66426 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 18:01:33 +00:00
Bob Wilson
1a6d31aee6 Add a constructor for BuildVectorSDNode and revert the temporary workaround
from 66280.  I was unable to verify this with gcc-3.4.6, but with gcc-3.3 it
avoids the "base class with only non-default constructor in class without
a constructor" warning.  Apparently that warning was promoted to an error
in gcc-3.4.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66424 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 17:07:15 +00:00
Gabor Greif
5c3e7b1718 in builds without asserts we do not need to allocate the Next pointer in "ghostly" sentinels
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66415 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 07:09:01 +00:00
Tanya Lattner
2ee7f8381f Add default constructor to SDNode to make gcc 3.4.6 happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66280 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06 18:17:45 +00:00
Gabor Greif
abab81f420 do not close friendship with every odd class
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66229 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06 01:09:27 +00:00
Gabor Greif
f3841fcbd5 ooops, forgot to include the pointless-write eliminator in my previous checkin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66081 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 21:54:31 +00:00
Gabor Greif
c23b8719ef Give sentinel traits the right to determine the policy where the sentinel is kept.
This should result in less indirect memory accesses, less dead writes and tighter code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66061 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 20:36:44 +00:00
Gabor Greif
c7f6b8c5d4 "Ghostify" embedded sentinels. This is a real win in all cases
because less bytes are allocated and subobject construction is gone.
For reference how it works, see BasicBlock.h.
Btw. it is very assuring to see that somebody has invented
this ilist-embedded sentinel technique before me :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66026 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 06:57:48 +00:00
Dan Gohman
0f8b53f19d Fix a bunch of Doxygen syntax issues. Escape special characters,
and put @file directives on their own comment line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65920 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 02:55:14 +00:00
Bob Wilson
24e338e8a3 Generalize BuildVectorSDNode::isConstantSplat to use APInts and handle
arbitrary vector sizes.  Add an optional MinSplatBits parameter to specify
a minimum for the splat element size.  Update the PPC target to use the
revised interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65899 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02 23:24:16 +00:00
Bob Wilson
a27ea9e89f Combine PPC's GetConstantBuildVectorBits and isConstantSplat functions to a new
method in a BuildVectorSDNode "pseudo-class".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65747 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 01:13:55 +00:00
Evan Cheng
a87008d90b Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65482 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25 22:49:59 +00:00
Evan Cheng
e3d423244a Clean up dwarf writer, part 1. This eliminated the horrible recursive getGlobalVariablesUsing and replaced it something readable. It eliminated use of slow UniqueVector and replaced it with StringMap, SmallVector, and DenseMap, etc. It also fixed some non-deterministic behavior.
This is a very minor compile time win.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65438 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25 07:04:34 +00:00
Scott Michel
8f1579aedc Expand tabs to spaces (overlooked in previous commit)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65427 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25 03:57:49 +00:00
Scott Michel
df38043a46 Remove all "cached" data from BuildVectorSDNode, preferring to retrieve
results via reference parameters.

This patch also appears to fix Evan's reported problem supplied as a
reduced bugpoint test case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65426 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25 03:12:50 +00:00
Bill Wendling
57f0db833d Overhaul my earlier submission due to feedback. It's a large patch, but most of
them are generic changes.

- Use the "fast" flag that's already being passed into the asm printers instead
  of shoving it into the DwarfWriter.

- Instead of calling "MI->getParent()->getParent()" for every MI, set the
  machine function when calling "runOnMachineFunction" in the asm printers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24 08:30:20 +00:00
Bill Wendling
5aa4977fba - Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emit
a DBG_LABEL or not. We want to fall back to the original way of emitting debug
  info when we're in -O0/-fast mode.
- Add plumbing in to pass the "Fast" flag to places that need it.
- XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I
  need to investigate still.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65367 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24 02:35:30 +00:00
Scott Michel
4214a5531c Introduce the BuildVectorSDNode class that encapsulates the ISD::BUILD_VECTOR
instruction. The class also consolidates the code for detecting constant
splats that's shared across PowerPC and the CellSPU backends (and might be
useful for other backends.) Also introduces SelectionDAG::getBUID_VECTOR() for
generating new BUILD_VECTOR nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65296 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22 23:36:09 +00:00
Bill Wendling
4ed0c5fb07 Add an accessor method to DwarfWriter to tell of debugging info should be emitted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65092 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20 00:44:43 +00:00
Bill Wendling
5d0f68134e Add a default debug location object to the Machine Function. It's used to emit a default debugging label at the beginning of a function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65091 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20 00:42:52 +00:00
Bill Wendling
4dd82f6aaa Print out a new label only if the debug location *tuple* is different. The debug
locations may change, but the tuples may be the same.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65039 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19 09:16:38 +00:00
Bill Wendling
cb819f13d7 Put code that generates debug labels into TableGen so that it can be used by
everyone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64978 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18 23:12:06 +00:00
Nate Begeman
d6b7a242d3 Add support to the JIT for true non-lazy operation. When a call to a function
that has not been JIT'd yet, the callee is put on a list of pending functions
to JIT.  The call is directed through a stub, which is updated with the address
of the function after it has been JIT'd.  A new interface for allocating and
updating empty stubs is provided.

Add support for removing the ModuleProvider the JIT was created with, which
would otherwise invalidate the JIT's PassManager, which is initialized with the
ModuleProvider's Module.

Add support under a new ExecutionEngine flag for emitting the infomration 
necessary to update Function and GlobalVariable stubs after JITing them, by
recording the address of the stub and the name of the GlobalValue.  This allows
code to be copied from one address space to another, where libraries may live
at different virtual addresses, and have the stubs updated with their new
correct target addresses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64906 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18 08:31:02 +00:00
Dan Gohman
97357614b5 Factor out the code to add a MachineOperand to a MachineInstrBuilder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64891 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18 05:45:50 +00:00
Dan Gohman
865f006bb4 Eliminate several more unnecessary intptr_t casts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64888 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18 05:09:16 +00:00
Scott Michel
fdc40a0a69 Remove trailing whitespace to reduce later commit patch noise.
(Note: Eventually, commits like this will be handled via a pre-commit hook that
 does this automagically, as well as expand tabs to spaces and look for 80-col
 violations.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64827 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17 22:15:04 +00:00
Bill Wendling
86e6cb924b --- Merging (from foreign repository) r64714 into '.':
U    include/llvm/CodeGen/DebugLoc.h
U    lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp

Enable debug location generation at -Os. This goes with the reapplication of the
r63639 patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64715 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17 01:04:54 +00:00
Cedric Venet
aff9c270de Unbreak the build on win32.
Cleanup some warning.

Remark: when struct/class are declared differently than they are defined, this make problem for VC++ since it seems to mangle class differently that struct. These error are very hard to understand and find. So please, try to keep your definition/declaration in sync.

Only tested with VS2008. hope it does not break anything. feel free to revert.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64554 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-14 16:06:42 +00:00
Dale Johannesen
a200c8faf8 Remove non-DebugLoc versions of BuildMI.
"I got blisters on my fingers."



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64439 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:35:20 +00:00
Dale Johannesen
21b5541814 Eliminate a couple of non-DebugLoc BuildMI variants.
Modify callers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64409 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 23:08:38 +00:00
Dan Gohman
47ac0f0c7c When scheduling a block in parts, keep track of the overall
instruction index across each part. Instruction indices are used
to make live range queries, and live ranges can extend beyond
scheduling region boundaries.

Refactor the ScheduleDAGSDNodes class some more so that it
doesn't have to worry about this additional information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64288 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 04:27:20 +00:00
Dan Gohman
18e9a6b3af It isn't necessary to explicitly clear the contents of std::vector
and DenseMap members in a destructor. And tidy up a comment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64265 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 00:18:15 +00:00
Dan Gohman
9e64bbb322 Factor out more code for computing register live-range informationfor
scheduling, and generalize is so that preserves state across
scheduling regions. This fixes incorrect live-range information around
terminators and labels, which are effective region boundaries.

In place of looking for terminators to anchor inter-block dependencies,
introduce special entry and exit scheduling units for this purpose.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64254 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 23:27:53 +00:00
Evan Cheng
0a1fcce092 Fix PR3486. Fix a bug in code that manually patch physical register live interval after its sub-register is coalesced with a virtual register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64082 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-08 11:04:35 +00:00
Evan Cheng
86fb9fdb20 Strengthen the previous check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64076 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-08 08:24:28 +00:00
Evan Cheng
77fde2cbb1 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64073 91177308-0d34-0410-b5e6-96231b3b80d8 2009-02-08 07:48:37 +00:00
Dan Gohman
1fdbc1dd4e Constify TargetInstrInfo::EmitInstrWithCustomInserter, allowing
ScheduleDAG's TLI member to use const.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64018 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 16:15:20 +00:00
Dale Johannesen
92570c4a1a Make SDNode constructors take a DebugLoc always.
Adjust derived classes to pass UnknownLoc where
a DebugLoc does not make sense.  Pick one of
DebugLoc and non-DebugLoc variants to survive
for all such classes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64000 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 02:15:05 +00:00
Dale Johannesen
472da14240 Deleted one line too many. oops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63996 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 01:34:19 +00:00