Commit Graph

15436 Commits

Author SHA1 Message Date
Andrew Trick
ee5fd9cf10 mi-sched: DEBUG cleanup, call tracePick for unidirectional scheduling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189993 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 21:00:16 +00:00
Andrew Trick
85d7f0be78 80 columns
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189992 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 21:00:13 +00:00
Andrew Trick
16bb45c5c8 mi-sched: Suppress register pressure tracking when the scheduling window is too small.
If the instruction window is < NumRegs/2, pressure tracking is not
likely to be effective. The scheduler has to process a very large
number of tiny blocks. We want this to be fast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189991 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 21:00:11 +00:00
Andrew Trick
d1d0d37a19 mi-sched: Load clustering is a bit to expensive to enable unconditionally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189990 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 21:00:08 +00:00
Andrew Trick
00b5fa4c28 mi-sched: Reuse an invalid HazardRecognizer to save compile time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189989 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 21:00:05 +00:00
Andrew Trick
40b52bb8f2 mi-sched: bypass heuristic checks when regpressure tracking is disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189988 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 21:00:02 +00:00
Andrew Trick
42ebb3ad41 Added -misched-regpressure option.
Register pressure tracking is half the complexity of the
scheduler. It's useful to be able to turn it off for compile time and
performance comparisons.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189987 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 20:59:59 +00:00
Eric Christopher
4dc211ae39 Unify and clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189977 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 19:53:21 +00:00
Michael Gottesman
dc42d031fb Revert "Revert "Remove the darwin gdb option, that version of gdb is now dead and the rest of the compatibility should be done on a dwarf-N level.""
This reverts commit r189913.

Talked with Eric on IRC. I am going to XFAIL the failing test since it
is using what Eric described as "the member hack" which was needed on
that old GDB.

Sorry for the noise!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189914 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 04:39:38 +00:00
Michael Gottesman
14ce9f1d25 Revert "Remove the darwin gdb option, that version of gdb is now dead and the rest of the compatibility should be done on a dwarf-N level."
This reverts commit r189903.

This commit broke the phase 1 buildbot for a while.

http://lab.llvm.org:8013/builders/clang-x86_64-darwin11-nobootstrap-RAincremental/builds/6684

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189913 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 04:31:56 +00:00
Eric Christopher
0a69049b62 Remove the darwin gdb option, that version of gdb is now dead and
the rest of the compatibility should be done on a dwarf-N level.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189903 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 02:02:10 +00:00
Eric Christopher
04031a6c22 Make the default dwarf version 3 for darwin when we can't find one
in the module. Add a FIXME with a comment about darwin's ld.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189902 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 01:38:30 +00:00
Eric Christopher
800a876128 Add a hashing routine that handles hashing types. Add a test for
hashing the contents of DW_FORM_data1 on top of a type with attributes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189862 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-03 21:57:57 +00:00
Eric Christopher
41627cf813 Sentences end with periods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189861 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-03 21:57:50 +00:00
Eric Christopher
bd18c8d090 Add the rest of the stock attributes to the attribute table.
This won't affect the kinds of hashes we test for as we actually
do hashing based on form and attribute. Change the fission-hash
testcase one last time to handle DW_AT_comp_dir.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189840 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-03 20:00:20 +00:00
Andrew Trick
c94e7b50c3 Fix my previous checkin to updatePressureDiffs.
There was one case that we could hit a DebugValue where I didn't think
to check. DebugValues are evil. No checkinable test case, sorry. It's
an obvious fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189717 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-31 05:17:58 +00:00
Andrew Trick
846b31d74a Use LiveRangeQuery for instruction-level liveness queries.
Remove redundant or bug-prone LiveInterval APIs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189685 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-30 17:58:49 +00:00
Andrew Trick
663bd99227 mi-sched: update PressureDiffs on-the-fly for liveness.
This removes all expensive pressure tracking logic from the scheduling
critical path of node comparison.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189643 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-30 04:36:57 +00:00
Andrew Trick
1362dcb589 Replace LiveInterval::killedAt with isKilledAtInstr.
Return true for LRGs that end at EarlyClobber or Register slots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189642 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-30 04:31:01 +00:00
Andrew Trick
da6fc15f0f mi-sched: improve the generic register pressure comparison.
Only compare pressure within the same set. When multiple sets are
affected, we prioritize the most constrained set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189641 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-30 04:27:29 +00:00
Andrew Trick
4c60b8a78d mi-sched: Precompute a PressureDiff for each instruction, adjust for liveness later.
Created SUPressureDiffs array to hold the per node PDiff computed during DAG building.

Added a getUpwardPressureDelta API that will soon replace the old
one. Compute PressureDelta here from the precomputed PressureDiffs.

Updating for liveness will come next.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189640 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-30 03:49:48 +00:00
Andrew Trick
6dc6a89d73 comment typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189635 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-30 02:02:12 +00:00
Eric Christopher
2612354594 Don't bother emitting the pubtypes section on darwin since there aren't
any maintained consumers of it on that platform.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189631 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-30 00:40:17 +00:00
Eric Christopher
ab6cd83731 Reformat slightly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189630 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-30 00:39:57 +00:00
Andrew Trick
851bb2c9cb Comment and revise the cyclic critical path code.
This should be much more clear now. It's still disabled pending testing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189597 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-29 18:04:49 +00:00
Hal Finkel
f208398528 Revert: r189565 - Add getUnrollingPreferences to TTI
Revert unintentional commit (of an unreviewed change).

Original commit message:

Add getUnrollingPreferences to TTI

Allow targets to customize the default behavior of the generic loop unrolling
transformation. This will be used by the PowerPC backend when targeting the A2
core (which is in-order with a deep pipeline), and using more aggressive
defaults is important.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189566 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-29 03:33:15 +00:00
Hal Finkel
32f258b96a Add getUnrollingPreferences to TTI
Allow targets to customize the default behavior of the generic loop unrolling
transformation. This will be used by the PowerPC backend when targeting the A2
core (which is in-order with a deep pipeline), and using more aggressive
defaults is important.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189565 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-29 03:29:57 +00:00
Hal Finkel
253acef7a5 Use TargetSubtargetInfo::useAA() in DAGCombine
This uses the TargetSubtargetInfo::useAA() function to control the defaults of
the -combiner-alias-analysis and -combiner-global-alias-analysis options.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189564 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-29 03:29:55 +00:00
Hal Finkel
738073c4aa Add useAA() to TargetSubtargetInfo
There are several optional (off-by-default) features in CodeGen that can make
use of alias analysis. These features are important for generating code for
some kinds of cores (for example the (in-order) PPC A2 core). This adds a
useAA() function to TargetSubtargetInfo to allow these features to be enabled
by default on a per-subtarget basis.

Here is the first use of this function: To control the default of the
-enable-aa-sched-mi feature.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189563 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-29 03:25:05 +00:00
Juergen Ributzka
2b884bcbce Fix a typo and coding style of a previous commit. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189526 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-28 22:33:58 +00:00
Eric Christopher
6b6345f016 Remove support for the .debug_inlined section. No known software
in use supports it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189439 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-28 04:04:28 +00:00
Eric Christopher
c3e9457f6d Add a TODO here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189428 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-28 00:13:08 +00:00
Eric Christopher
7ced4fa257 Add support for DW_FORM_dataN and DW_FORM_udata to the DIE hashing
algorithm. Update the split dwarf hashing testcase accordingly - this
should be the last time that the hash of an empty file changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189427 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-28 00:10:38 +00:00
Eric Christopher
7b2ee399d9 Use DW_FORM_sdata for signed constant values and udata on occasion
when we can. Migrate from using blocks when we're adding just a
single attribute and floating point values are an unsigned, not signed,
bag of bits.

Update all test cases accordingly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189419 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-27 23:49:04 +00:00
Tim Northover
5d8c2e460c DAGCombiner: make sure or/shl/srl really has zero high bits before forming bswap
We want to convert code like (or (srl N, 8), (shl N, 8)) into (srl (bswap N),
const), but this is only valid if the bits above 16 on the source pattern are
0, the checks we were doing on this were slightly wrong before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189348 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-27 13:46:45 +00:00
Owen Anderson
15cfa585eb Remove an over-zealous assertion. A pointer type could be illegal if the target is prepared to custom-legalize pointer operands. This assertion was evaluated before the target would have a chance to do so, making it impossible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189299 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-27 00:28:23 +00:00
Eric Christopher
fdaf0308c8 Formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189296 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 23:58:22 +00:00
Eric Christopher
30410d5993 Make the lifetime of the DICompileUnit we're constructing from the
MDNode more clear as just for a single argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189294 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 23:57:03 +00:00
Eric Christopher
a9b2c79e26 Have the skeleton compile unit construction method take the CU it
is constructing from as an input and keep the same unique identifier.
We can use this to connect items which must stay in the .o file
(e.g. pubnames and pubtypes) to the skeleton cu rather than having
duplicate unique numbers for the sections and needing to do lookups
based on MDNode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189293 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 23:50:43 +00:00
Eric Christopher
4c65ab79a7 Remove duplicate set of CompilationDir.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189292 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 23:50:40 +00:00
Eric Christopher
7b87895a6c Remove the language parameter and variable from the compile unit. We
can get it via the MDNode that's passed in. Save that instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189291 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 23:50:38 +00:00
Eric Christopher
63ae7c9aec Treat the pubtypes section similarly to the pubnames section and emit
it by default under linux or when we're trying to keep compatibility
with old gdb versions.

Fix testcase for option name change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189289 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 23:24:35 +00:00
Eric Christopher
978046bd07 Only emit the section sym if we're emitting the section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189288 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 23:24:31 +00:00
Eric Christopher
03be5e5b6e Fix thinko.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189279 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 20:58:35 +00:00
Tom Stellard
edd08f7428 SelectionDAG: Remove unnecessary uses of TargetLowering::getPointerTy()
If we have a binary operation like ISD:ADD, we can set the result type
equal to the result type of one of its operands rather than using
TargetLowering::getPointerTy().

Also, any use of DAG.getIntPtrConstant(C) as an operand for a binary
operation can be replaced with:
DAG.getConstant(C, OtherOperand.getValueType());

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189227 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 15:06:10 +00:00
Tom Stellard
c52565157d SelectionDAG: Use correct pointer size when splitting vector stores
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189224 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 15:05:55 +00:00
Tom Stellard
da25cd3e6d SelectionDAG: Use correct pointer size when lowering function arguments v2
This adds minimal support to the SelectionDAG for handling address spaces
with different pointer sizes.  The SelectionDAG should now correctly
lower pointer function arguments to the correct size as well as generate
the correct code when lowering getelementptr.

This patch also updates the R600 DataLayout to use 32-bit pointers for
the local address space.

v2:
  - Add more helper functions to TargetLoweringBase
  - Use CHECK-LABEL for tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189221 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 15:05:36 +00:00
David Majnemer
b31eebd3fd AsmPrinter: Get rid of llvm$workaround$fake$stub$
We currently emit labels with the prefix Lllvm$workaround$fake$stub$ if
the target's MCAsmInfo has getLinkOnceDirective() mapped to something
interesting.  This was apparently a work around introduced in r31033 for
binutils that we don't need anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189187 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-25 09:18:19 +00:00
Benjamin Kramer
0b6962f4be Add a function object to compare the first or second component of a std::pair.
Replace instances of this scattered around the code base.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189169 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-24 12:54:27 +00:00
Benjamin Kramer
4321d4e4a9 Simplify code. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189168 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-24 12:15:54 +00:00