Benjamin Kramer [Fri, 24 Dec 2010 22:23:59 +0000 (22:23 +0000)]
Fix a thinko pointed out by Frits van Bommel: looking through global variables in isBytewiseValue is not safe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122550
91177308-0d34-0410-b5e6-
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Rafael Espindola [Fri, 24 Dec 2010 21:22:02 +0000 (21:22 +0000)]
Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We now
have a single point where targets test if a relocation is needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122549
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Fri, 24 Dec 2010 21:17:12 +0000 (21:17 +0000)]
MemCpyOpt: Turn memcpys from a constant into a memset if possible.
This allows us to compile "int cst[] = {-1, -1, -1};" into
movl $-1, 16(%rsp)
movq $-1, 8(%rsp)
instead of
movl _cst+8(%rip), %eax
movl %eax, 16(%rsp)
movq _cst(%rip), %rax
movq %rax, 8(%rsp)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122548
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Fri, 24 Dec 2010 16:41:46 +0000 (16:41 +0000)]
MC/Mach-O/ARM: Start handling some Thumb branches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122547
91177308-0d34-0410-b5e6-
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Andrew Trick [Fri, 24 Dec 2010 07:10:19 +0000 (07:10 +0000)]
Minor cleanup related to my latest scheduler changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122545
91177308-0d34-0410-b5e6-
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Andrew Trick [Fri, 24 Dec 2010 06:46:50 +0000 (06:46 +0000)]
Fix a few cases where the scheduler is not checking for phys reg copies. The scheduling node may have a NULL DAG node, yuck.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122544
91177308-0d34-0410-b5e6-
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Jim Grosbach [Fri, 24 Dec 2010 05:06:32 +0000 (05:06 +0000)]
Trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122542
91177308-0d34-0410-b5e6-
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Andrew Trick [Fri, 24 Dec 2010 05:03:26 +0000 (05:03 +0000)]
Various bits of framework needed for precise machine-level selection
DAG scheduling during isel. Most new functionality is currently
guarded by -enable-sched-cycles and -enable-sched-hazard.
Added InstrItineraryData::IssueWidth field, currently derived from
ARM itineraries, but could be initialized differently on other targets.
Added ScheduleHazardRecognizer::MaxLookAhead to indicate whether it is
active, and if so how many cycles of state it holds.
Added SchedulingPriorityQueue::HasReadyFilter to allowing gating entry
into the scheduler's available queue.
ScoreboardHazardRecognizer now accesses the ScheduleDAG in order to
get information about it's SUnits, provides RecedeCycle for bottom-up
scheduling, correctly computes scoreboard depth, tracks IssueCount, and
considers potential stall cycles when checking for hazards.
ScheduleDAGRRList now models machine cycles and hazards (under
flags). It tracks MinAvailableCycle, drives the hazard recognizer and
priority queue's ready filter, manages a new PendingQueue, properly
accounts for stall cycles, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122541
91177308-0d34-0410-b5e6-
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Andrew Trick [Fri, 24 Dec 2010 04:28:06 +0000 (04:28 +0000)]
whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122539
91177308-0d34-0410-b5e6-
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Cameron Zwarich [Fri, 24 Dec 2010 03:09:36 +0000 (03:09 +0000)]
Simplify a check for implicit defs and remove a FIXME.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122537
91177308-0d34-0410-b5e6-
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Kevin Enderby [Fri, 24 Dec 2010 00:12:02 +0000 (00:12 +0000)]
In llvm-mc parse a Hash token as a full line comment. Allows handling of
preprocessed .s files and matches darwin gas. rdar://
8798690
Also fix a comment on the next line of AsmParser.cpp after this new code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122531
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Jim Grosbach [Fri, 24 Dec 2010 00:03:39 +0000 (00:03 +0000)]
Use a StringSwitch<> instead of a manually constructed string matcher.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122530
91177308-0d34-0410-b5e6-
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Owen Anderson [Thu, 23 Dec 2010 23:56:24 +0000 (23:56 +0000)]
When determining if we can fold (x >> C1) << C2, the bits that we need to verify are zero
are not the low bits of x, but the bits that WILL be the low bits after the operation completes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122529
91177308-0d34-0410-b5e6-
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Evan Cheng [Thu, 23 Dec 2010 23:54:17 +0000 (23:54 +0000)]
Code clean up. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122528
91177308-0d34-0410-b5e6-
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Jim Grosbach [Thu, 23 Dec 2010 23:20:13 +0000 (23:20 +0000)]
Remove dead patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122524
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Jim Grosbach [Thu, 23 Dec 2010 23:19:54 +0000 (23:19 +0000)]
Recognize a few more documented register name aliases for ARM in the asm lexer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122523
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Bob Wilson [Thu, 23 Dec 2010 22:45:49 +0000 (22:45 +0000)]
Radar
8803471: Fix expansion of ARM BCCi64 pseudo instructions.
If the basic block containing the BCCi64 (or BCCZi64) instruction ends with
an unconditional branch, that branch needs to be deleted before appending
the expansion of the BCCi64 to the end of the block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122521
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Oscar Fuentes [Thu, 23 Dec 2010 21:27:22 +0000 (21:27 +0000)]
Do not re-test for the existence of pthread.h.
It was causing problems on the MinGW build. See PR8849.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122518
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Torok Edwin [Thu, 23 Dec 2010 21:22:09 +0000 (21:22 +0000)]
XFAIL vg_leak the new test as the rest.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122517
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Owen Anderson [Thu, 23 Dec 2010 20:57:35 +0000 (20:57 +0000)]
It is possible for SimplifyCFG to cause PHI nodes to become redundant too late in the optimization
pipeline to be caught by instcombine, and it's not feasible to catch them in SimplifyCFG because the
use-lists are in an inconsistent state at the point where it could know that it need to simplify them.
Instead, have CodeGenPrepare look for trivially redundant PHIs as part of its general cleanup effort.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122516
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Chris Lattner [Thu, 23 Dec 2010 18:28:41 +0000 (18:28 +0000)]
Flag -> Glue, the ongoing saga
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122513
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Chris Lattner [Thu, 23 Dec 2010 17:24:32 +0000 (17:24 +0000)]
flags -> glue for selectiondag
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122509
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Chris Lattner [Thu, 23 Dec 2010 17:13:18 +0000 (17:13 +0000)]
sdisel flag -> glue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122507
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Chris Lattner [Thu, 23 Dec 2010 17:03:20 +0000 (17:03 +0000)]
continue renaming flag -> glue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122506
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Torok Edwin [Thu, 23 Dec 2010 15:49:26 +0000 (15:49 +0000)]
Fix OCaml bindings crash, PR8847.
See http://caml.inria.fr/mantis/view.php?id=4166
If we call only external functions from a module, then its 'let _' bindings
don't get executed, which means that the exceptions don't get registered for use
in the C code.
This in turn causes llvm_raise to call raise_with_arg() with a NULL pointer and
cause a segmentation fault.
The workaround is to declare all 'external' functions as 'val' in these .mli
files.
Also added a separate testcase (the testcase must call only external functions
for the bug to occur).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122497
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Benjamin Kramer [Thu, 23 Dec 2010 15:32:07 +0000 (15:32 +0000)]
Remove/fix invalid README entries. The well thought out strcpy function doesn't return a pointer to the end of the string.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122496
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Thu, 23 Dec 2010 15:07:02 +0000 (15:07 +0000)]
Remove some obsolete README items, add a new one off the top of my head.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122495
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Andrew Trick [Thu, 23 Dec 2010 05:42:20 +0000 (05:42 +0000)]
Reorganize ListScheduleBottomUp in preparation for modeling machine cycles and instruction issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122491
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Andrew Trick [Thu, 23 Dec 2010 04:16:14 +0000 (04:16 +0000)]
Converted LiveRegCycles to LiveRegGens. It's easier to work with and allows multiple nodes per cycle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122474
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Andrew Trick [Thu, 23 Dec 2010 03:43:21 +0000 (03:43 +0000)]
In CheckForLiveRegDef use TRI->getOverlaps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122473
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Andrew Trick [Thu, 23 Dec 2010 03:15:51 +0000 (03:15 +0000)]
Fixes PR8823: add-with-overflow-128.ll
In the bottom-up selection DAG scheduling, handle two-address
instructions that read/write unspillable registers. Treat
the entire chain of two-address nodes as a single live range.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122472
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Mon P Wang [Thu, 23 Dec 2010 01:41:32 +0000 (01:41 +0000)]
Preserve the address space when generating bitcasts for MemTransferInst in ConvertToScalarInfo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122462
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Jeffrey Yasskin [Thu, 23 Dec 2010 00:58:24 +0000 (00:58 +0000)]
Change all self assignments X=X to (void)X, so that we can turn on a
new gcc warning that complains on self-assignments and
self-initializations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122458
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Bill Wendling [Thu, 23 Dec 2010 00:49:18 +0000 (00:49 +0000)]
Default to armv7 instead of armv6.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122457
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Jim Grosbach [Wed, 22 Dec 2010 23:26:02 +0000 (23:26 +0000)]
Trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122456
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Benjamin Kramer [Wed, 22 Dec 2010 23:17:45 +0000 (23:17 +0000)]
DAGCombine add (sext i1), X into sub X, (zext i1) if sext from i1 is illegal. The latter usually compiles into smaller code.
example code:
unsigned foo(unsigned x, unsigned y) {
if (x != 0) y--;
return y;
}
before:
_foo: ## @foo
cmpl $1, 4(%esp) ## encoding: [0x83,0x7c,0x24,0x04,0x01]
sbbl %eax, %eax ## encoding: [0x19,0xc0]
notl %eax ## encoding: [0xf7,0xd0]
addl 8(%esp), %eax ## encoding: [0x03,0x44,0x24,0x08]
ret ## encoding: [0xc3]
after:
_foo: ## @foo
cmpl $1, 4(%esp) ## encoding: [0x83,0x7c,0x24,0x04,0x01]
movl 8(%esp), %eax ## encoding: [0x8b,0x44,0x24,0x08]
adcl $-1, %eax ## encoding: [0x83,0xd0,0xff]
ret ## encoding: [0xc3]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122455
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Benjamin Kramer [Wed, 22 Dec 2010 23:12:15 +0000 (23:12 +0000)]
InstCombine: creating selects from -1 and 0 is fine, they combine into a sext from i1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122453
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Wed, 22 Dec 2010 23:09:28 +0000 (23:09 +0000)]
X86: Lower a select directly to a setcc_carry if possible.
int test(unsigned long a, unsigned long b) { return -(a < b); }
compiles to
_test: ## @test
cmpq %rsi, %rdi ## encoding: [0x48,0x39,0xf7]
sbbl %eax, %eax ## encoding: [0x19,0xc0]
ret ## encoding: [0xc3]
instead of
_test: ## @test
xorl %ecx, %ecx ## encoding: [0x31,0xc9]
cmpq %rsi, %rdi ## encoding: [0x48,0x39,0xf7]
movl $-1, %eax ## encoding: [0xb8,0xff,0xff,0xff,0xff]
cmovael %ecx, %eax ## encoding: [0x0f,0x43,0xc1]
ret ## encoding: [0xc3]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122451
91177308-0d34-0410-b5e6-
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Rafael Espindola [Wed, 22 Dec 2010 22:16:24 +0000 (22:16 +0000)]
Add r122359 back now that the bug in MCDwarfLineAddrFragment fragment has been
fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122448
91177308-0d34-0410-b5e6-
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Dan Gohman [Wed, 22 Dec 2010 22:10:08 +0000 (22:10 +0000)]
Constify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122447
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Rafael Espindola [Wed, 22 Dec 2010 22:04:28 +0000 (22:04 +0000)]
Assert that the AddrDelta expression is really constant and wrap it in a set
if we have a lame assembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122446
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Wed, 22 Dec 2010 22:01:30 +0000 (22:01 +0000)]
When RegAllocGreedy decides to spill the interferences of the current register,
pick the victim with the lowest total spill weight.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122445
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Jakob Stoklund Olesen [Wed, 22 Dec 2010 22:01:28 +0000 (22:01 +0000)]
Include a shadow of the original CFG edges in the edge bundle graph.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122444
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Rafael Espindola [Wed, 22 Dec 2010 21:51:29 +0000 (21:51 +0000)]
Rename NeedsSetToChangeDiffSize to HasAggressiveSymbolFolding which is a much
better name and matches what is used in the MachO writer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122443
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Daniel Dunbar [Wed, 22 Dec 2010 21:26:43 +0000 (21:26 +0000)]
MC/Mach-O/ARM: Don't try to use scattered relocs for BR24 fixups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122441
91177308-0d34-0410-b5e6-
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Rafael Espindola [Wed, 22 Dec 2010 21:15:13 +0000 (21:15 +0000)]
Add reduced test from 8845.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122438
91177308-0d34-0410-b5e6-
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Rafael Espindola [Wed, 22 Dec 2010 19:05:49 +0000 (19:05 +0000)]
Revert r122359 while I debug PR8845.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122427
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Matt Beaumont-Gay [Wed, 22 Dec 2010 18:25:55 +0000 (18:25 +0000)]
Fix another conditional expression mismatched enum type warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122419
91177308-0d34-0410-b5e6-
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Duncan Sands [Wed, 22 Dec 2010 17:15:25 +0000 (17:15 +0000)]
When determining whether the new instruction was already present in
the original instruction, half the cases were missed (making it not
wrong but suboptimal). Also correct a typo (A <-> B) in the second
chunk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122414
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Duncan Sands [Wed, 22 Dec 2010 17:08:04 +0000 (17:08 +0000)]
Make this test not depend on how the variable is named.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122413
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Wed, 22 Dec 2010 16:52:19 +0000 (16:52 +0000)]
MC/Mach-O/ARM: We always use the SECTDIFF reloc type on ARM, which is
esp. important given that the LOCAL_SECTDIFF enumeration got redefined.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122412
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Daniel Dunbar [Wed, 22 Dec 2010 16:45:29 +0000 (16:45 +0000)]
MC/Mach-O/ARM: Clone off an ARM version of RecordScatteredRelocation until I figure out how it is supposed to work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122410
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Daniel Dunbar [Wed, 22 Dec 2010 16:32:41 +0000 (16:32 +0000)]
MC/Mach-O: Return to reporting errors if we see unexpected fixup kinds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122409
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Wed, 22 Dec 2010 16:32:37 +0000 (16:32 +0000)]
MC/Mach-O/ARM: Recognize generic _Data_N fixup kinds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122408
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Wed, 22 Dec 2010 16:19:24 +0000 (16:19 +0000)]
MC/Mach-O/ARM: Add enough relocation logic to get BR24 relocations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122407
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Wed, 22 Dec 2010 16:19:20 +0000 (16:19 +0000)]
MC/Mach-O/ARM: Fix thinko.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122406
91177308-0d34-0410-b5e6-
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Rafael Espindola [Wed, 22 Dec 2010 16:11:57 +0000 (16:11 +0000)]
Use references and simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122405
91177308-0d34-0410-b5e6-
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Rafael Espindola [Wed, 22 Dec 2010 16:03:00 +0000 (16:03 +0000)]
Simplify the handling of .size expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122404
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Wed, 22 Dec 2010 13:50:05 +0000 (13:50 +0000)]
MC/Mach-O/ARM: Stub out RecordARMRelocation, which is mostly a copy of
RecordRelocation with lots of FIXMEs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122402
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Wed, 22 Dec 2010 13:49:56 +0000 (13:49 +0000)]
Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122401
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Daniel Dunbar [Wed, 22 Dec 2010 13:49:43 +0000 (13:49 +0000)]
MC/Mach-O: Split out RecordARMRelocation for now, it is weird enough it isn't
clear how to keep in the generic path (yet).
- Will revisit when it actually works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122400
91177308-0d34-0410-b5e6-
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Duncan Sands [Wed, 22 Dec 2010 13:36:08 +0000 (13:36 +0000)]
Add a generic expansion transform: A op (B op' C) -> (A op B) op' (A op C)
if both A op B and A op C simplify. This fires fairly often but doesn't
make that much difference. On gcc-as-one-file it removes two "and"s and
turns one branch into a select.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122399
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Che-Liang Chiou [Wed, 22 Dec 2010 10:38:51 +0000 (10:38 +0000)]
ptx: add ld instruction and test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122398
91177308-0d34-0410-b5e6-
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Duncan Sands [Wed, 22 Dec 2010 09:40:51 +0000 (09:40 +0000)]
Add some statistics, good for understanding how much more powerful
instcombine is compared to instsimplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122397
91177308-0d34-0410-b5e6-
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Oscar Fuentes [Wed, 22 Dec 2010 08:30:17 +0000 (08:30 +0000)]
Fixes file extension for loadable modules on OS X.
Patch by Wesley Peck!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122395
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 22 Dec 2010 08:02:57 +0000 (08:02 +0000)]
Fix a bug in ReduceLoadWidth that wasn't handling extending
loads properly. We miscompiled the testcase into:
_test: ## @test
movl $128, (%rdi)
movzbl 1(%rdi), %eax
ret
Now we get a proper:
_test: ## @test
movl $128, (%rdi)
movsbl (%rdi), %eax
movzbl %ah, %eax
ret
This fixes PR8757.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122392
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Chris Lattner [Wed, 22 Dec 2010 08:01:44 +0000 (08:01 +0000)]
more cleanups, move a check for "roundedness" earlier to reject
unhanded cases faster and simplify code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122391
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Chris Lattner [Wed, 22 Dec 2010 07:36:50 +0000 (07:36 +0000)]
reduce indentation and improve comments, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122389
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Wesley Peck [Wed, 22 Dec 2010 01:29:32 +0000 (01:29 +0000)]
Don't generate carry bit when loading immediate values on the Microblaze.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122385
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Wesley Peck [Wed, 22 Dec 2010 01:15:01 +0000 (01:15 +0000)]
Add support for some of the LLVM atomic operations to the MBlaze backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122384
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Wesley Peck [Wed, 22 Dec 2010 00:53:07 +0000 (00:53 +0000)]
Modeling the carry bit in the MSR register of the MicroBlaze.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122381
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Wesley Peck [Wed, 22 Dec 2010 00:22:59 +0000 (00:22 +0000)]
Fix a regression introduced into the MBlaze delay slot filler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122379
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Owen Anderson [Tue, 21 Dec 2010 23:54:34 +0000 (23:54 +0000)]
Give GVN back the ability to perform simple conditional propagation on conditional branch values.
I still think that LVI should be handling this, but that capability is some ways off in the future,
and this matters for some significant benchmarks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122378
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Matt Beaumont-Gay [Tue, 21 Dec 2010 23:43:23 +0000 (23:43 +0000)]
GCC objects to the two sides of a conditional expression having different enum
types, but they're just getting converted to unsigned anyway, so cast first
(and ask questions later).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122377
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Owen Anderson [Tue, 21 Dec 2010 22:31:24 +0000 (22:31 +0000)]
Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122371
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Andrew Trick [Tue, 21 Dec 2010 22:27:44 +0000 (22:27 +0000)]
In DelayForLiveRegsBottomUp, handle instructions that read and write
the same physical register. Simplifies the fix from the previous
checkin r122211.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122370
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Andrew Trick [Tue, 21 Dec 2010 22:25:04 +0000 (22:25 +0000)]
whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122368
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Dale Johannesen [Tue, 21 Dec 2010 21:55:50 +0000 (21:55 +0000)]
Reapply 122353-122355 with fixes. 122354 was wrong;
the shift type was needed one place, the shift count
type another. The transform in 123555 had the same
problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122366
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Benjamin Kramer [Tue, 21 Dec 2010 21:41:44 +0000 (21:41 +0000)]
Add some x86 specific dagcombines for conditional increments.
(add Y, (sete X, 0)) -> cmp X, 1; adc 0, Y
(add Y, (setne X, 0)) -> cmp X, 1; sbb -1, Y
(sub (sete X, 0), Y) -> cmp X, 1; sbb 0, Y
(sub (setne X, 0), Y) -> cmp X, 1; adc -1, Y
for
unsigned foo(unsigned a, unsigned b) {
if (a == 0) b++;
return b;
}
we now get:
foo:
cmpl $1, %edi
movl %esi, %eax
adcl $0, %eax
ret
instead of:
foo:
testl %edi, %edi
sete %al
movzbl %al, %eax
addl %esi, %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122364
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Benjamin Kramer [Tue, 21 Dec 2010 21:30:19 +0000 (21:30 +0000)]
GVN's Expression is not POD-like (it contains a SmallVector). Simplify code while at it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122362
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Dale Johannesen [Tue, 21 Dec 2010 21:22:27 +0000 (21:22 +0000)]
Revert 122353-122355 for the moment, they broke stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122360
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Rafael Espindola [Tue, 21 Dec 2010 20:51:42 +0000 (20:51 +0000)]
Simplify EvaluateAsAbsolute now that EvaluateAsRelocatableImpl does all
the folding it can.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122359
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Rafael Espindola [Tue, 21 Dec 2010 20:35:18 +0000 (20:35 +0000)]
Don't relax org or align. They change size as the relaxation happens, but they
are not actually relaxed. For example, a section with only alignments will never
needs relaxation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122356
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Dale Johannesen [Tue, 21 Dec 2010 20:10:51 +0000 (20:10 +0000)]
Add a new transform to DAGCombiner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122355
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Dale Johannesen [Tue, 21 Dec 2010 20:06:19 +0000 (20:06 +0000)]
Get the type of a shift from the shift, not from its shift
count operand. These should be the same but apparently are
not always, and this is cleaner anyway. This improves the
code in an existing test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122354
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Dale Johannesen [Tue, 21 Dec 2010 20:00:06 +0000 (20:00 +0000)]
Shift by the word size is invalid IR; don't create it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122353
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Chris Lattner [Tue, 21 Dec 2010 18:05:22 +0000 (18:05 +0000)]
fix some typos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122349
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David Greene [Tue, 21 Dec 2010 17:25:43 +0000 (17:25 +0000)]
Revert 122341. It breaks some darwin tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122346
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Stuart Hastings [Tue, 21 Dec 2010 17:16:58 +0000 (17:16 +0000)]
Fix indentation, add comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122345
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Duncan Sands [Tue, 21 Dec 2010 17:08:55 +0000 (17:08 +0000)]
Visit instructions deterministically. Use a FIFO so as to approximately
visit instructions before their uses, since InstructionSimplify does a
better job in that case. All this prompted by Frits van Bommel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122343
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Stuart Hastings [Tue, 21 Dec 2010 17:07:24 +0000 (17:07 +0000)]
Missing logic for nested CALLSEQ_START/END.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122342
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David Greene [Tue, 21 Dec 2010 16:55:53 +0000 (16:55 +0000)]
Fix PR 8199. This patch prepends the build tool dir to LLVM programs
being tested. This ensures that we test the tools just built and not
some random tools that might happen to be in the user's PATH. This
makes LLVM testing much more stable and predictable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122341
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Jim Grosbach [Tue, 21 Dec 2010 16:16:00 +0000 (16:16 +0000)]
Tidy up a bit. Trailing whitespace, hard tabs and 80-columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122337
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Duncan Sands [Tue, 21 Dec 2010 16:12:03 +0000 (16:12 +0000)]
If an instruction simplifies, try again to simplify any uses of it. This is
not very important since the pass is only used for testing, but it does make
it more realistic. Suggested by Frits van Bommel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122336
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Daniel Dunbar [Tue, 21 Dec 2010 15:26:45 +0000 (15:26 +0000)]
MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrong
type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122334
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Duncan Sands [Tue, 21 Dec 2010 15:12:22 +0000 (15:12 +0000)]
Add an additional InstructionSimplify factorization test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122333
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Duncan Sands [Tue, 21 Dec 2010 15:03:43 +0000 (15:03 +0000)]
While I don't think any later transforms can fire, it seems cleaner to
not assume this (for example in case more transforms get added below
it). Suggested by Frits van Bommel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122332
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Duncan Sands [Tue, 21 Dec 2010 14:48:48 +0000 (14:48 +0000)]
Fix inverted condition noticed by Frits van Bommel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122331
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Duncan Sands [Tue, 21 Dec 2010 14:00:22 +0000 (14:00 +0000)]
Pull a few more simplifications out of instcombine (there are still
plenty left though!), in particular for multiplication.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122330
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Duncan Sands [Tue, 21 Dec 2010 13:39:20 +0000 (13:39 +0000)]
Fix typo in comment, spotted by Deewiant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122329
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