Mikhail Glushenkov [Sun, 7 Dec 2008 16:42:47 +0000 (16:42 +0000)]
Try to guess when the auto-generated cl::Sink option should be marked 'extern'.
This would be much easier to do if the CommandLine library didn't use
global state. Global state is evil.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60659
91177308-0d34-0410-b5e6-
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Mikhail Glushenkov [Sun, 7 Dec 2008 16:42:22 +0000 (16:42 +0000)]
Add a (progn)-like construct for (actions). Implemented as a DAG list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60658
91177308-0d34-0410-b5e6-
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Mikhail Glushenkov [Sun, 7 Dec 2008 16:41:50 +0000 (16:41 +0000)]
Add tests for tblgen's LLVMC backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60657
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Mikhail Glushenkov [Sun, 7 Dec 2008 16:41:11 +0000 (16:41 +0000)]
Use (actions) instead of option properties, support external options.
Also includes a major refactoring. See documentation for more
information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60656
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Chris Lattner [Sun, 7 Dec 2008 08:50:20 +0000 (08:50 +0000)]
add support for caching pointer dependence queries. Nothing uses this yet
so it "can't" break anything. That said, it does appear to work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60654
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 7 Dec 2008 07:22:45 +0000 (07:22 +0000)]
fix a bug I introduced in simplifycfg handling single entry phi
nodes. FoldSingleEntryPHINodes deletes the PHI, so there is no
need to delete it afterward.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60653
91177308-0d34-0410-b5e6-
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Owen Anderson [Sun, 7 Dec 2008 05:33:18 +0000 (05:33 +0000)]
Switch to top-down mode and fix a crasher this exposed caused by an error in the
live interval updating.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60652
91177308-0d34-0410-b5e6-
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Nick Lewycky [Sun, 7 Dec 2008 03:49:52 +0000 (03:49 +0000)]
Fix typo, psuedo -> pseudo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60651
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 7 Dec 2008 02:56:57 +0000 (02:56 +0000)]
Some internal refactoring to make it easier to cache results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60650
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 7 Dec 2008 02:15:47 +0000 (02:15 +0000)]
Introduce a new MemDep::getNonLocalPointerDependency
method. This will eventually take over load/store dep
queries from getNonLocalDependency. For now it works
fine, but is incredibly slow because it does no caching.
Lets not switch GVN to use it until that is fixed :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60649
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 7 Dec 2008 01:50:16 +0000 (01:50 +0000)]
push the "pointer case" up the analysis stack a bit. This causes
duplication of logic (in 2 places) to determine what pointer a
load/store touches. This will be addressed in a future commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60648
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 7 Dec 2008 01:21:14 +0000 (01:21 +0000)]
make clients have to know how to call getCallSiteDependencyFrom
instead of making getDependencyFrom do it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60647
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 7 Dec 2008 00:39:19 +0000 (00:39 +0000)]
rename some variables for consistency
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60644
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 7 Dec 2008 00:38:27 +0000 (00:38 +0000)]
I love how using out of scope variables is not an error with GCC, no really I do.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60643
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Chris Lattner [Sun, 7 Dec 2008 00:35:51 +0000 (00:35 +0000)]
Rename getCallSiteDependency -> getCallSiteDependencyFrom to
emphasize the scanning and make it more similar to
getDependencyFrom
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60642
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Chris Lattner [Sun, 7 Dec 2008 00:28:02 +0000 (00:28 +0000)]
a memdep query on a volatile load/store will always return
clobber with the current implementation. Instead of returning
a "precise clobber" just return a fuzzy one. This doesn't
matter to any clients anyway and should speed up analysis time
very very slightly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60641
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Chris Lattner [Sun, 7 Dec 2008 00:25:15 +0000 (00:25 +0000)]
don't bother touching volatile stores, they will just return clobber on
everything interesting anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60640
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Chris Lattner [Sun, 7 Dec 2008 00:21:18 +0000 (00:21 +0000)]
remove the ability to get memdep info for vaarg. I don't think the
original impl was correct and noone actually makes the query anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60639
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Chris Lattner [Sun, 7 Dec 2008 00:16:50 +0000 (00:16 +0000)]
make getDependencyFrom private.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60637
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Chris Lattner [Sun, 7 Dec 2008 00:15:10 +0000 (00:15 +0000)]
improve a note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60636
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Chris Lattner [Sat, 6 Dec 2008 22:52:12 +0000 (22:52 +0000)]
some more PRE/GVN/DSE related notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60633
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Chris Lattner [Sat, 6 Dec 2008 22:49:05 +0000 (22:49 +0000)]
add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60632
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Chris Lattner [Sat, 6 Dec 2008 19:28:22 +0000 (19:28 +0000)]
some random notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60624
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Nick Lewycky [Sat, 6 Dec 2008 17:57:05 +0000 (17:57 +0000)]
Minor cleanup. Use dyn_cast, not isa/cast pairs. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60623
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Evan Cheng [Sat, 6 Dec 2008 02:00:55 +0000 (02:00 +0000)]
Clean up some ARM GV asm printing out; minor fixes to match what gcc does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60621
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Chris Lattner [Sat, 6 Dec 2008 00:53:22 +0000 (00:53 +0000)]
Reimplement the inner loop of DSE. It now uniformly uses getDependence(),
doesn't do its own local caching, and is slightly more aggressive about
free/store dse (see testcase). This eliminates the last external client
of MemDep::getDependenceFrom().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60619
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Dan Gohman [Fri, 5 Dec 2008 23:39:24 +0000 (23:39 +0000)]
Don't use plain %x to print pointer values. I had changed it from %p
since %p isn't formatted consistently, but obviously plain %x is wrong.
PRIxPTR with a cast to uintptr_t would work here, but that requires
inconvenient build-system changes. %lu works on all current and
foreseable future hosts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60616
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Dale Johannesen [Fri, 5 Dec 2008 22:38:21 +0000 (22:38 +0000)]
Fix test to pass on Linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60614
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Dale Johannesen [Fri, 5 Dec 2008 21:55:35 +0000 (21:55 +0000)]
Forgot a file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60609
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Dale Johannesen [Fri, 5 Dec 2008 21:47:27 +0000 (21:47 +0000)]
Make LoopStrengthReduce smarter about hoisting things out of
loops when they can be subsumed into addressing modes.
Change X86 addressing mode check to realize that
some PIC references need an extra register.
(I believe this is correct for Linux, if not, I'm sure
someone will tell me.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60608
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Chris Lattner [Fri, 5 Dec 2008 21:04:20 +0000 (21:04 +0000)]
Make a few major changes to memdep and its clients:
1. Merge the 'None' result into 'Normal', making loads
and stores return their dependencies on allocations as Normal.
2. Split the 'Normal' result into 'Clobber' and 'Def' to
distinguish between the cases when memdep knows the value is
produced from when we just know if may be changed.
3. Move some of the logic for determining whether readonly calls
are CSEs into memdep instead of it being in GVN. This still
leaves verification that the arguments are hte same to GVN to
let it know about value equivalences in different contexts.
4. Change memdep's call/call dependency analysis to use
getModRefInfo(CallSite,CallSite) instead of doing something
very weak. This only really matters for things like DSA, but
someday maybe we'll have some other decent context sensitive
analyses :)
5. This reimplements the guts of memdep to handle the new results.
6. This simplifies GVN significantly:
a) readonly call CSE is slightly simpler
b) I eliminated the "getDependencyFrom" chaining for load
elimination and load CSE doesn't have to worry about
volatile (they are always clobbers) anymore.
c) GVN no longer does any 'lastLoad' caching, leaving it to
memdep.
7. The logic in DSE is simplified a bit and sped up. A potentially
unsafe case was eliminated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60607
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Dan Gohman [Fri, 5 Dec 2008 20:12:48 +0000 (20:12 +0000)]
Demangle and pretty-print symbols in internal backtraces. Patch by
Wesley Peck, with a few fixes by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60605
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Anton Korobeynikov [Fri, 5 Dec 2008 19:38:49 +0000 (19:38 +0000)]
Revert invalid r60393. It causes llvm-gcc bootstrap fails in release builds.
See PR3160 for details
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60604
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Evan Cheng [Fri, 5 Dec 2008 19:26:37 +0000 (19:26 +0000)]
This test also requires -mattr=+sse41.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60601
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Chris Lattner [Fri, 5 Dec 2008 18:46:19 +0000 (18:46 +0000)]
Make it illegal to call getDependency* on non-memory instructions
like binary operators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60600
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Evan Cheng [Fri, 5 Dec 2008 17:41:31 +0000 (17:41 +0000)]
Reason #3 from 60595 doesn't hold true. If we can fold a PIC load from constpool into a use, the rewrite happens at time of spill (not in VirtRegMap). Later on, if the GlobalBaseReg is spilled, the spiller can see the use uses GlobalBaseReg and do the right thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60596
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Evan Cheng [Fri, 5 Dec 2008 17:23:48 +0000 (17:23 +0000)]
Effectively undo 60461 in PIC mode which simply transform V_SET0 / V_SETALLONES into a load from constpool in order to fold into restores. This is not safe to do when PIC base is being used for a number of reasons:
1. GlobalBaseReg may have been spilled.
2. It may not be live at the use.
3. Spiller doesn't know this is happening so it won't prevent GlobalBaseReg from being spilled later (That by itself is a nasty hack. It's needed because we don't insert the reload until later).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60595
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Chris Lattner [Fri, 5 Dec 2008 17:04:12 +0000 (17:04 +0000)]
Fix test/Transforms/GVN/pre-load.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60594
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Evan Cheng [Fri, 5 Dec 2008 17:00:16 +0000 (17:00 +0000)]
Fix comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60592
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Cedric Venet [Fri, 5 Dec 2008 13:37:30 +0000 (13:37 +0000)]
The use of the construct:
for(Type1 B = ...;;) { Type2 B ; ... }
is bad: code is hard to read and VS VS don't like it (it ignore the second declaration of B).
This patch fix the problem in tablegen. Please don't write code like this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60590
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Chris Lattner [Fri, 5 Dec 2008 07:49:08 +0000 (07:49 +0000)]
Make IsValueFullyAvailableInBlock safe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60588
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 5 Dec 2008 07:11:05 +0000 (07:11 +0000)]
add a new pop_back_val method which returns the value popped. This is
heretical from a STL standpoint, but is oh-so-useful for things that
can't throw exceptions when copied, like, well, everything in LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60587
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Dan Gohman [Fri, 5 Dec 2008 05:45:42 +0000 (05:45 +0000)]
Drop the reg argument to isRegReDefinedByTwoAddr, which was redundant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60586
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Dan Gohman [Fri, 5 Dec 2008 05:35:21 +0000 (05:35 +0000)]
Update comments. There is no getArgumentAccesses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60585
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Dan Gohman [Fri, 5 Dec 2008 05:31:14 +0000 (05:31 +0000)]
Teach StackSlotColoring to update MachineMemOperands when
changing the stack slots on an instruction, to keep them
consistent with the actual memory addresses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60584
91177308-0d34-0410-b5e6-
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Dan Gohman [Fri, 5 Dec 2008 05:30:02 +0000 (05:30 +0000)]
Ignore IMPLICIT_DEF instructions when computing physreg liveness.
While they appear to provide a normal clobbering def, they don't
in the case of the awkward IMPLICIT_DEF+INSERT_SUBREG idiom. It
would be good to change INSERT_SUBREG; until then, this change
allows post-regalloc scheduling to cope in a mildly conservative
way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60583
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Evan Cheng [Fri, 5 Dec 2008 01:06:39 +0000 (01:06 +0000)]
Re-did 60519. It turns out Darwin's handling of hidden visibility symbols are a bit more complicate than I expected. Both declarations and weak definitions still need a stub indirection. However, the stubs are in data section and they contain the addresses of the actual symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60571
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Scott Michel [Fri, 5 Dec 2008 00:01:00 +0000 (00:01 +0000)]
CellSPU: Add new directory under tests/CodeGen/CellSPU to retain tests that
aren't part of the test suite but are generally useful nonetheless, and can
be expanded later to test the backend against the actual Cell SPU system.
There's basically no other good place to put this code, so put it here for
the time being.
- vecoperations.c: Vector shuffles for all supported vector types, tests
for v16i8 add and multiply.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60566
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Ted Kremenek [Thu, 4 Dec 2008 22:51:11 +0000 (22:51 +0000)]
Have raw_fd_ostream keep track of the position in the file to make tell() go faster by not requiring a flush().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60560
91177308-0d34-0410-b5e6-
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Devang Patel [Thu, 4 Dec 2008 21:40:31 +0000 (21:40 +0000)]
Enable LoopIndexSplit pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60555
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Devang Patel [Thu, 4 Dec 2008 21:38:42 +0000 (21:38 +0000)]
Rewrite code that 1) filters loops and 2) calculates new loop bounds.
This fixes many bugs. I will add more test cases in a separate check-in.
Some day, the code that manipulates CFG and updates dom. info could use refactoring help.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60554
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Owen Anderson [Thu, 4 Dec 2008 21:20:30 +0000 (21:20 +0000)]
Factor out some common code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60553
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Scott Michel [Thu, 4 Dec 2008 21:01:44 +0000 (21:01 +0000)]
CellSPU: Fix bug 3055
- Add v4f32, v2f64 to LowerVECTOR_SHUFFLE
- Look for vector rotate in shuffle elements, generate a vector rotate
instead of a full-blown shuffle when opportunity presents itself.
- Generate larger test harness and fix a few interesting but obscure bugs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60552
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Duncan Sands [Thu, 4 Dec 2008 18:08:40 +0000 (18:08 +0000)]
When allocating a stack temporary, use the correct
number of bytes for types such as i1 which are not
a multiple of 8 bits in length.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60543
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Scott Michel [Thu, 4 Dec 2008 17:16:59 +0000 (17:16 +0000)]
Missing closing brace and reverse conditional condition on NDEBUG
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60541
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Chris Lattner [Thu, 4 Dec 2008 06:31:07 +0000 (06:31 +0000)]
Start simplifying a switch that has a successor that is a switch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60534
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Chris Lattner [Thu, 4 Dec 2008 06:14:27 +0000 (06:14 +0000)]
This code is apparently quite confused. In the meantime,
get it building when NDEBUG is set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60532
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Bill Wendling [Thu, 4 Dec 2008 04:07:00 +0000 (04:07 +0000)]
Temporarily revert r60519. It was causing a bootstrap failure:
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT barrier.lo -MD -MP -MF .deps/barrier.Tpo -c ../../../llvm-gcc.src/libgomp/barrier.c -fno-common -DPIC -o .libs/barrier.o
checking for sys/file.h... /var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:non-relocatable subtraction expression, "_gomp_tls_key" minus "L1$pb"
/var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:symbol: "_gomp_tls_key" can't be undefined in a subtraction expression
make[4]: *** [barrier.lo] Error 1
make[4]: *** Waiting for unfinished jobs....
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT alloc.lo -MD -MP -MF .deps/alloc.Tpo -c ../../../llvm-gcc.src/libgomp/alloc.c -o alloc.o >/dev/null 2>&1
yes
checking for sys/param.h... make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-target-libgomp] Error 2
make[1]: *** Waiting for unfinished jobs....
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60527
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Scott Michel [Thu, 4 Dec 2008 03:02:42 +0000 (03:02 +0000)]
CellSPU:
- First patch from Nehal Desai, a new contributor at Aerospace. Nehal's patch
fixes sign/zero/any-extending loads for integers and floating point. Example
code, compiled w/o debugging or optimization where he first noticed the bug:
int main(void) {
float a = 99.0;
printf("%d\n", a);
return 0;
}
Verified that this code actually works on a Cell SPU.
Changes by Scott Michel:
- Fix bug in the value type list constructed by SPUISD::LDRESULT to include
both the load result's result and chain, not just the chain alone.
- Simplify LowerLOAD and remove extraneous and unnecessary chains.
- Remove unused SPUISD pseudo instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60526
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Dan Gohman [Thu, 4 Dec 2008 02:15:26 +0000 (02:15 +0000)]
Use register names instead of numbers in debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60525
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Dan Gohman [Thu, 4 Dec 2008 02:14:57 +0000 (02:14 +0000)]
Make debug output more informative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60524
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Evan Cheng [Thu, 4 Dec 2008 01:56:50 +0000 (01:56 +0000)]
Visibility hidden GVs do not require extra load of symbol address from the GOT or non-lazy-ptr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60519
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Dan Gohman [Thu, 4 Dec 2008 01:35:46 +0000 (01:35 +0000)]
Add minimal support for disambiguating memory references. Currently
the main thing this covers is spills to distinct spill slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60517
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Chris Lattner [Thu, 4 Dec 2008 00:07:59 +0000 (00:07 +0000)]
add a debugging option to help track down j-t problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60514
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Dan Gohman [Wed, 3 Dec 2008 23:07:27 +0000 (23:07 +0000)]
Rewrite the liveness bookkeeping code to fix a bunch of
issues with subreg operands and tied operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60510
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Dale Johannesen [Wed, 3 Dec 2008 22:45:31 +0000 (22:45 +0000)]
Make the debugging dump be a full line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60509
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Dale Johannesen [Wed, 3 Dec 2008 22:43:56 +0000 (22:43 +0000)]
Remove an unused field.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60508
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Dan Gohman [Wed, 3 Dec 2008 21:37:21 +0000 (21:37 +0000)]
Have PseudoSourceValue override Value::dump, so that it works
on PseudoSourceValue values. This also fixes a FIXME in
lib/VMCode/AsmWriter.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60507
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Dale Johannesen [Wed, 3 Dec 2008 20:56:12 +0000 (20:56 +0000)]
Fix a misspelled function name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60506
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Chris Lattner [Wed, 3 Dec 2008 19:44:02 +0000 (19:44 +0000)]
Factor some code into a new FoldSingleEntryPHINodes method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60501
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Dan Gohman [Wed, 3 Dec 2008 19:38:38 +0000 (19:38 +0000)]
Fix an inconsistency in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60500
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Evan Cheng [Wed, 3 Dec 2008 19:38:05 +0000 (19:38 +0000)]
Use mmx (punpckldq VR64, (mmx_v_set0)) to clear high 32-bits of a VR64 register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60499
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Dan Gohman [Wed, 3 Dec 2008 19:37:34 +0000 (19:37 +0000)]
Don't charge the full latency for anti and output dependencies. This is
an area where eventually it would be good to use target-dependent
information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60498
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Dale Johannesen [Wed, 3 Dec 2008 19:33:10 +0000 (19:33 +0000)]
A step towards geting linux ppc to work (see PR 3099)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60497
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Dan Gohman [Wed, 3 Dec 2008 19:32:26 +0000 (19:32 +0000)]
When looking for anti-dependences on the critical path, don't bother
examining non-anti-dependence edges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60496
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Dan Gohman [Wed, 3 Dec 2008 19:30:13 +0000 (19:30 +0000)]
Add a comment about callee-saved registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60495
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Dale Johannesen [Wed, 3 Dec 2008 19:25:46 +0000 (19:25 +0000)]
Fix a really wrong comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60494
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Chris Lattner [Wed, 3 Dec 2008 19:18:54 +0000 (19:18 +0000)]
fix a really incorrect comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60492
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Dan Gohman [Wed, 3 Dec 2008 18:43:12 +0000 (18:43 +0000)]
Split foldMemoryOperand into public non-virtual and protected virtual
parts, and add target-independent code to add/preserve
MachineMemOperands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60488
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Dan Gohman [Wed, 3 Dec 2008 18:15:48 +0000 (18:15 +0000)]
Rename isSimpleLoad to canFoldAsLoad, to better reflect its meaning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60487
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Dan Gohman [Wed, 3 Dec 2008 18:11:40 +0000 (18:11 +0000)]
Extend X86's addFrameReference to add a MachineMemOperand for
the frame reference. This will help post-RA scheduling determine
that spills to distinct stack slots are independent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60486
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Rafael Espindola [Wed, 3 Dec 2008 17:14:56 +0000 (17:14 +0000)]
Fix some tests. The grep for "il" was matching "file".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60485
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Dan Gohman [Wed, 3 Dec 2008 17:10:41 +0000 (17:10 +0000)]
Update a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60484
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Duncan Sands [Wed, 3 Dec 2008 12:36:16 +0000 (12:36 +0000)]
Only check that the result of the mapping was not
a new node if the node was actually remapped.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60482
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Rafael Espindola [Wed, 3 Dec 2008 11:01:37 +0000 (11:01 +0000)]
Fix bug 3140.
Print a single parameter .file directive if we have an ELF target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60480
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Richard Osborne [Wed, 3 Dec 2008 10:59:16 +0000 (10:59 +0000)]
Add support for ISD::TRAP to the XCore backend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60479
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Evan Cheng [Wed, 3 Dec 2008 08:38:43 +0000 (08:38 +0000)]
Refactor code. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60478
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Bill Wendling [Wed, 3 Dec 2008 08:32:02 +0000 (08:32 +0000)]
CC should only be a ConstantSDNode at this point. Just use 'cast' instead of 'dyn_cast'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60477
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Evan Cheng [Wed, 3 Dec 2008 08:20:45 +0000 (08:20 +0000)]
Fix test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60476
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Chris Lattner [Wed, 3 Dec 2008 07:48:27 +0000 (07:48 +0000)]
testcase for br undef folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60471
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Chris Lattner [Wed, 3 Dec 2008 07:48:08 +0000 (07:48 +0000)]
Teach jump threading some more simple tricks:
1) have it fold "br undef", which does occur with
surprising frequency as jump threading iterates.
2) teach j-t to delete dead blocks. This removes the successor
edges, reducing the in-edges of other blocks, allowing
recursive simplification.
3) Fold things like:
br COND, BBX, BBY
BBX:
br COND, BBZ, BBW
which also happens because jump threading iterates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60470
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Chris Lattner [Wed, 3 Dec 2008 07:45:15 +0000 (07:45 +0000)]
third time is the charm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60469
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Chris Lattner [Wed, 3 Dec 2008 07:43:05 +0000 (07:43 +0000)]
fix assertion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60468
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Chris Lattner [Wed, 3 Dec 2008 06:41:50 +0000 (06:41 +0000)]
don't spew tons of stuff to the output. This testcase is *not* for
loop deletion (it is for a ton of passes), which is very bad.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60465
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Chris Lattner [Wed, 3 Dec 2008 06:40:52 +0000 (06:40 +0000)]
Rename DeleteBlockIfDead to DeleteDeadBlock and make it
unconditionally delete the block. All likely clients will
do the checking anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60464
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Chris Lattner [Wed, 3 Dec 2008 06:37:44 +0000 (06:37 +0000)]
Factor some code out of SimplifyCFG, forming a new
DeleteBlockIfDead method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60463
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Dan Gohman [Wed, 3 Dec 2008 05:21:24 +0000 (05:21 +0000)]
Mark x86's V_SET0 and V_SETALLONES with isSimpleLoad, and teach X86's
foldMemoryOperand how to "fold" them, by converting them into constant-pool
loads. When they aren't folded, they use xorps/cmpeqd, but for example when
register pressure is high, they may now be folded as memory operands, which
reduces register pressure.
Also, mark V_SET0 isAsCheapAsAMove so that two-address-elimination will
remat it instead of copying zeros around (V_SETALLONES was already marked).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60461
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Bill Wendling [Wed, 3 Dec 2008 02:43:12 +0000 (02:43 +0000)]
Change label to 'carry' for unsigned adds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60460
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Dan Gohman [Wed, 3 Dec 2008 02:30:17 +0000 (02:30 +0000)]
Add a sanity-check to tablegen to catch the case where isSimpleLoad
is set but mayLoad is not set. Fix all the problems this turned up.
Change code to not use isSimpleLoad instead of mayLoad unless it
really wants isSimpleLoad.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60459
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Dan Gohman [Wed, 3 Dec 2008 02:10:00 +0000 (02:10 +0000)]
Fix a missing #include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60458
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