495afdffd7
autoconf: Add --disable-embed-stdcxx to suppress linking libstdc++.a into llvm.dll with --enable-shared on Cygming.
...
Cygwin has stdc++.dll in it's distribution, and we can assume distro's stdc++.dll might be available.
llvm-svn: 122622
2010-12-29 03:59:14 +00:00
c6fce17b3e
autoconf: [PR7874] Add --disable-pthreads to suppress detecting pthreads on certain hosts.
...
This would be needed to build pthread*.dll-free distribution on recent MinGW-MSYS distros.
llvm-svn: 122621
2010-12-29 03:59:03 +00:00
a834008959
test/Transforms/ConstProp/logicaltest.ll: FileCheck-ize.
...
llvm-svn: 122620
2010-12-29 03:58:56 +00:00
dbacfb73e0
test/CodeGen/X86/negative-sin.ll: FileCheck-ize.
...
llvm-svn: 122619
2010-12-29 03:58:47 +00:00
74835a22d8
test/CodeGen/X86/fp-in-intregs.ll: FileCheck-ize.
...
llvm-svn: 122618
2010-12-29 03:58:36 +00:00
458fd305d4
Add text explaining an assertion.
...
llvm-svn: 122617
2010-12-29 03:52:51 +00:00
2ae93b2c9c
Remove second return.
...
llvm-svn: 122616
2010-12-29 02:42:33 +00:00
563301dfdb
Fix bug when trying to output uint16_t or uint32_t.
...
llvm-svn: 122615
2010-12-29 02:30:49 +00:00
290d71671e
Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. Looks
...
like 6 is a fixed point of that and so the previous tests were OK :-)
llvm-svn: 122614
2010-12-29 01:42:56 +00:00
1be1fe033c
fix PR8867: a crash handling fp128. Thanks to Nick for the testcase.
...
llvm-svn: 122613
2010-12-29 01:33:36 +00:00
426e68f793
Implement cfi_def_cfa_register.
...
llvm-svn: 122612
2010-12-29 00:26:06 +00:00
86d347dd31
Initial .cfi_offset implementation.
...
llvm-svn: 122611
2010-12-29 00:09:59 +00:00
6fe33fdd63
Simplify some code in MachineVerifier that was doing the correct thing, but not
...
in the most obvious way.
llvm-svn: 122610
2010-12-28 23:45:38 +00:00
6bbfb6c06c
Don't produce a "DW_CFA_advance_loc 0".
...
llvm-svn: 122609
2010-12-28 23:38:03 +00:00
146666eabb
Revert the optimization in r122596. It is correct for all current targets, but
...
it relies on assumptions that may not be true in the future.
llvm-svn: 122608
2010-12-28 23:02:56 +00:00
2f15503d5a
Multiple SPARC backend fixes: added Y register; updated select_cc, subx, subxcc defs/uses;
...
and fixed CustomInserter.
llvm-svn: 122607
2010-12-28 20:39:17 +00:00
4c8c95b099
Integers are primitive types. Update the documentation to state this
...
This was done for label, void, floating point, x86mmx, metadata,
just not integer.
llvm-svn: 122606
2010-12-28 20:29:31 +00:00
65a699d4d0
simplify this, isBytewiseValue handles the extra check. We still
...
check for "multiple of a byte" in size to make it clear that the
>> 3 below is safe.
llvm-svn: 122604
2010-12-28 18:53:48 +00:00
102bc01900
add a note from llvmdev
...
llvm-svn: 122603
2010-12-28 18:45:02 +00:00
85d91982ca
Implement .cfi_remember_state and .cfi_restore_state.
...
llvm-svn: 122602
2010-12-28 18:36:23 +00:00
1f22457975
Clarify that InstructionSimplify only returns values that dominate the
...
original instruction.
llvm-svn: 122601
2010-12-28 18:01:19 +00:00
c6fa6d25ab
Small optimization to speed up replacementPreservesLCSSAForm.
...
llvm-svn: 122600
2010-12-28 18:00:24 +00:00
b6d52b8b64
Cast away "comparison between signed and unsigned integer" warnings.
...
llvm-svn: 122598
2010-12-28 13:52:52 +00:00
110442d8a0
Fix a signed/unsigned comparison warning.
...
llvm-svn: 122597
2010-12-28 13:05:13 +00:00
92f6e4290c
Avoid iterating every operand of an instruction in StrongPHIElimination, since
...
we are only interested in the defs when discovering interferences.
This is a 28% speedup running StrongPHIElimination on 403.gcc.
llvm-svn: 122596
2010-12-28 10:49:33 +00:00
496770debc
Pacify the compiler. BestWeight cannot in fact be used uninitialized
...
in this function, but the compiler was warning that it might be when
doing a release build.
llvm-svn: 122595
2010-12-28 10:07:15 +00:00
3784c5ea3c
Fix warning about size potentially being used uninitialized
...
when doing a release build.
llvm-svn: 122594
2010-12-28 10:02:42 +00:00
5cf10e691b
Silence gcc warning about an unused variable when doing a release build.
...
llvm-svn: 122593
2010-12-28 09:41:15 +00:00
736a35d9ab
Relax address updates in the eh_frame section.
...
llvm-svn: 122591
2010-12-28 05:39:27 +00:00
a75b87b55a
Start adding basic support for emitting the call frame instructions.
...
llvm-svn: 122590
2010-12-28 04:15:37 +00:00
c581fe7e81
Support/Path: Deprecate Path::hasMagicNumber and replace all uses with fs::has_magic.
...
llvm-svn: 122589
2010-12-28 01:49:21 +00:00
9d1419841a
Fix typo.
...
llvm-svn: 122588
2010-12-28 01:49:10 +00:00
848f46bb84
Support/PathV2: Implement has_magic.
...
llvm-svn: 122587
2010-12-28 01:49:01 +00:00
5e5cfbe871
Change an assertion to assert what the code actually relies upon.
...
llvm-svn: 122586
2010-12-27 22:08:42 +00:00
cb18bfa3d2
fix some issues Frits noticed, add AliasAnalysis as a dependency
...
llvm-svn: 122585
2010-12-27 18:39:08 +00:00
1de2dd0e5e
Add support for .cfi_lsda.
...
llvm-svn: 122584
2010-12-27 15:56:22 +00:00
a895c69431
MC/Mach-O/Thumb: Select appropriate relocation types for Thumb.
...
llvm-svn: 122583
2010-12-27 14:49:49 +00:00
25d046ce68
Land a first cut at StrongPHIElimination. There are only 5 new test failures
...
when running without the verifier, and I have not yet checked them to see if
the new results are still correct. There are more verifier failures, but they
all seem to be additional occurrences of verifier failures that occur with the
existing PHIElimination pass. There are a few obvious issues with the code:
1) It doesn't properly update the register equivalence classes during copy
insertion, and instead recomputes them before merging live intervals and
renaming registers. I wanted to keep this first patch simple for debugging
purposes, but it shouldn't be very hard to do this.
2) It doesn't mix the renaming and live interval merging with the copy insertion
process, which leads to a lot of virtual register churn. Virtual registers and
live intervals are created, only to later be merged into others. The code should
be smarter and only create a new virtual register if there is no existing
register in the same congruence class.
3) In one place the code uses a DenseMap per basic block, which is unnecessary
heap allocation. There should be an inline storage version of DenseMap.
I did a quick compile-time test of running llc on 403.gcc with and without
StrongPHIElimination. It is slightly slower with StrongPHIElimination, because
the small decrease in the coalescer runtime can't beat the increase in phi
elimination runtime. Perhaps fixing the above performance issues will narrow
the gap.
I also haven't yet run any tests of the quality of the generated code.
llvm-svn: 122582
2010-12-27 10:08:19 +00:00
b95bfe1667
Add knowledge of phi-def and phi-kill valnos to MachineVerifier's predecessor
...
valno verification. The "Different value live out of predecessor" check is
incorrect in the case of phi-def valnos, so just skip that check for phi-def
valnos and instead check that all of the valnos for predecessors have phi-kill.
Fixes PR8863.
llvm-svn: 122581
2010-12-27 05:17:23 +00:00
9e590024f6
Support/PathV1: Deprecate GetRootDirectory.
...
llvm-svn: 122580
2010-12-27 03:21:41 +00:00
8fc59a682f
Handle reloc_riprel_4byte_movq_load. Should make the bots happy.
...
llvm-svn: 122579
2010-12-27 02:03:24 +00:00
2ac8355ecd
Add support for the same encodings of the personality function that gnu as
...
supports.
llvm-svn: 122577
2010-12-27 00:36:05 +00:00
84bd73c527
BuildLibCalls: Nuke EmitMemCpy, EmitMemMove and EmitMemSet. They are dead and superseded by IRBuilder.
...
llvm-svn: 122576
2010-12-27 00:25:32 +00:00
7cba269dfb
SimplifyLibCalls: Use IRBuilder to simplify code.
...
llvm-svn: 122575
2010-12-27 00:16:46 +00:00
b9fe685b9a
have loop-idiom nuke instructions that feed stores that get removed.
...
llvm-svn: 122574
2010-12-27 00:03:23 +00:00
29e14edc8d
implement enough of the memset inference algorithm to recognize and insert
...
memsets. This is still missing one important validity check, but this is enough
to compile stuff like this:
void test0(std::vector<char> &X) {
for (std::vector<char>::iterator I = X.begin(), E = X.end(); I != E; ++I)
*I = 0;
}
void test1(std::vector<int> &X) {
for (long i = 0, e = X.size(); i != e; ++i)
X[i] = 0x01010101;
}
With:
$ clang t.cpp -S -o - -O2 -emit-llvm | opt -loop-idiom | opt -O3 | llc
to:
__Z5test0RSt6vectorIcSaIcEE: ## @_Z5test0RSt6vectorIcSaIcEE
## BB#0: ## %entry
subq $8, %rsp
movq (%rdi), %rax
movq 8(%rdi), %rsi
cmpq %rsi, %rax
je LBB0_2
## BB#1: ## %bb.nph
subq %rax, %rsi
movq %rax, %rdi
callq ___bzero
LBB0_2: ## %for.end
addq $8, %rsp
ret
...
__Z5test1RSt6vectorIiSaIiEE: ## @_Z5test1RSt6vectorIiSaIiEE
## BB#0: ## %entry
subq $8, %rsp
movq (%rdi), %rax
movq 8(%rdi), %rdx
subq %rax, %rdx
cmpq $4, %rdx
jb LBB1_2
## BB#1: ## %for.body.preheader
andq $-4, %rdx
movl $1, %esi
movq %rax, %rdi
callq _memset
LBB1_2: ## %for.end
addq $8, %rsp
ret
llvm-svn: 122573
2010-12-26 23:42:51 +00:00
6cf8d6cc6e
start using irbuilder to make mem intrinsics in a few passes.
...
llvm-svn: 122572
2010-12-26 22:57:41 +00:00
143a07cfee
add methods to IRBuilder to create memcpy/memset/memmove.
...
llvm-svn: 122571
2010-12-26 22:49:25 +00:00
54462cd730
Fix .cfi_personality on 32 bit systems.
...
llvm-svn: 122570
2010-12-26 22:47:37 +00:00
9ae2d05d45
Add support for @note. Patch by Jörg Sonnenberger.
...
llvm-svn: 122568
2010-12-26 21:30:59 +00:00
7c5f9c35d1
sketch more of this out.
...
llvm-svn: 122567
2010-12-26 20:45:45 +00:00
9141b611ad
Add basic support for .cfi_personality.
...
llvm-svn: 122566
2010-12-26 20:20:31 +00:00
9cb1035f94
move isBytewiseValue out to ValueTracking.h/cpp
...
llvm-svn: 122565
2010-12-26 20:15:01 +00:00
81ae3f299a
actually add the file...
...
llvm-svn: 122563
2010-12-26 19:39:38 +00:00
2ef535a4e4
Start of a pass for recognizing memset and memcpy idioms.
...
No functionality yet.
llvm-svn: 122562
2010-12-26 19:32:44 +00:00
30342fb1fd
Simplify code.
...
llvm-svn: 122561
2010-12-26 15:23:45 +00:00
f9e0a56b94
fix some sort of weird pasto
...
llvm-svn: 122560
2010-12-26 12:05:11 +00:00
424de3498b
add a note
...
llvm-svn: 122559
2010-12-26 03:53:31 +00:00
03a102bff3
Generalize a previous change, fixing PR8855 - an valid large immediate
...
rejected by the mc assembler.
llvm-svn: 122557
2010-12-25 21:36:35 +00:00
d729d0dcdb
don't lose TD info
...
llvm-svn: 122556
2010-12-25 20:52:04 +00:00
20fca48341
switch the inliner alignment enforcement stuff to use the
...
getOrEnforceKnownAlignment function, which simplifies the code
and makes it stronger.
llvm-svn: 122555
2010-12-25 20:42:38 +00:00
6fcd32e7d7
Move getOrEnforceKnownAlignment out of instcombine into Transforms/Utils.
...
llvm-svn: 122554
2010-12-25 20:37:57 +00:00
e13f1ead9b
Support/PathV1: Deprecate makeAbsolute and remove Unix impl because it annoys people.
...
llvm-svn: 122553
2010-12-25 20:10:11 +00:00
481de07b00
Header warning patrol.
...
llvm-svn: 122551
2010-12-25 02:38:01 +00:00
b90b2f0635
Fix a thinko pointed out by Frits van Bommel: looking through global variables in isBytewiseValue is not safe.
...
llvm-svn: 122550
2010-12-24 22:23:59 +00:00
0f8abeba1d
Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We now
...
have a single point where targets test if a relocation is needed.
llvm-svn: 122549
2010-12-24 21:22:02 +00:00
ea9152e551
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)
llvm-svn: 122548
2010-12-24 21:17:12 +00:00
7f2bb4dcae
MC/Mach-O/ARM: Start handling some Thumb branches.
...
llvm-svn: 122547
2010-12-24 16:41:46 +00:00
5ce945ca3a
Minor cleanup related to my latest scheduler changes.
...
llvm-svn: 122545
2010-12-24 07:10:19 +00:00
c94056692a
Fix a few cases where the scheduler is not checking for phys reg copies. The scheduling node may have a NULL DAG node, yuck.
...
llvm-svn: 122544
2010-12-24 06:46:50 +00:00
50986b5d39
Trailing whitespace.
...
llvm-svn: 122542
2010-12-24 05:06:32 +00:00
10ffc2b6c2
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.
llvm-svn: 122541
2010-12-24 05:03:26 +00:00
c416ba612b
whitespace
...
llvm-svn: 122539
2010-12-24 04:28:06 +00:00
ab434079d3
Simplify a check for implicit defs and remove a FIXME.
...
llvm-svn: 122537
2010-12-24 03:09:36 +00:00
fa3c6f148c
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.
llvm-svn: 122531
2010-12-24 00:12:02 +00:00
ffaea0f017
Use a StringSwitch<> instead of a manually constructed string matcher.
...
llvm-svn: 122530
2010-12-24 00:03:39 +00:00
226ac14afb
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.
llvm-svn: 122529
2010-12-23 23:56:24 +00:00
62de0fa671
Code clean up. No functionality change.
...
llvm-svn: 122528
2010-12-23 23:54:17 +00:00
545858d209
Remove dead patterns.
...
llvm-svn: 122524
2010-12-23 23:20:13 +00:00
bcfa4a945a
Recognize a few more documented register name aliases for ARM in the asm lexer.
...
llvm-svn: 122523
2010-12-23 23:19:54 +00:00
36be00ceb3
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.
llvm-svn: 122521
2010-12-23 22:45:49 +00:00
4c6340188a
Do not re-test for the existence of pthread.h.
...
It was causing problems on the MinGW build. See PR8849.
llvm-svn: 122518
2010-12-23 21:27:22 +00:00
78561c96b3
XFAIL vg_leak the new test as the rest.
...
llvm-svn: 122517
2010-12-23 21:22:09 +00:00
5d690d4168
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.
llvm-svn: 122516
2010-12-23 20:57:35 +00:00
2a0a3b43d7
Flag -> Glue, the ongoing saga
...
llvm-svn: 122513
2010-12-23 18:28:41 +00:00
11a33811b6
flags -> glue for selectiondag
...
llvm-svn: 122509
2010-12-23 17:24:32 +00:00
f647e95b9a
sdisel flag -> glue.
...
llvm-svn: 122507
2010-12-23 17:13:18 +00:00
f7f9e8c978
continue renaming flag -> glue.
...
llvm-svn: 122506
2010-12-23 17:03:20 +00:00
5abf51bde0
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).
llvm-svn: 122497
2010-12-23 15:49:26 +00:00
dfa40f8f19
Remove/fix invalid README entries. The well thought out strcpy function doesn't return a pointer to the end of the string.
...
llvm-svn: 122496
2010-12-23 15:32:07 +00:00
b37ae33125
Remove some obsolete README items, add a new one off the top of my head.
...
llvm-svn: 122495
2010-12-23 15:07:02 +00:00
528fad91d2
Reorganize ListScheduleBottomUp in preparation for modeling machine cycles and instruction issue.
...
llvm-svn: 122491
2010-12-23 05:42:20 +00:00
a52f325c35
Converted LiveRegCycles to LiveRegGens. It's easier to work with and allows multiple nodes per cycle.
...
llvm-svn: 122474
2010-12-23 04:16:14 +00:00
12acde11cb
In CheckForLiveRegDef use TRI->getOverlaps.
...
llvm-svn: 122473
2010-12-23 03:43:21 +00:00
033efdf4d7
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.
llvm-svn: 122472
2010-12-23 03:15:51 +00:00
18b762a946
Preserve the address space when generating bitcasts for MemTransferInst in ConvertToScalarInfo
...
llvm-svn: 122462
2010-12-23 01:41:32 +00:00
9b43f33620
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.
llvm-svn: 122458
2010-12-23 00:58:24 +00:00
f14bb1e98b
Default to armv7 instead of armv6.
...
llvm-svn: 122457
2010-12-23 00:49:18 +00:00
8c48503baa
Trailing whitespace.
...
llvm-svn: 122456
2010-12-22 23:26:02 +00:00
1f4dfbbcb0
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]
llvm-svn: 122455
2010-12-22 23:17:45 +00:00
8ef5001b27
InstCombine: creating selects from -1 and 0 is fine, they combine into a sext from i1.
...
llvm-svn: 122453
2010-12-22 23:12:15 +00:00
6020ed9d99
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]
llvm-svn: 122451
2010-12-22 23:09:28 +00:00
4124ab1255
Add r122359 back now that the bug in MCDwarfLineAddrFragment fragment has been
...
fixed.
llvm-svn: 122448
2010-12-22 22:16:24 +00:00
0bbdaf5723
Constify.
...
llvm-svn: 122447
2010-12-22 22:10:08 +00:00
d91e11932c
Assert that the AddrDelta expression is really constant and wrap it in a set
...
if we have a lame assembler.
llvm-svn: 122446
2010-12-22 22:04:28 +00:00
0acb69d53c
When RegAllocGreedy decides to spill the interferences of the current register,
...
pick the victim with the lowest total spill weight.
llvm-svn: 122445
2010-12-22 22:01:30 +00:00
29836e6572
Include a shadow of the original CFG edges in the edge bundle graph.
...
llvm-svn: 122444
2010-12-22 22:01:28 +00:00
a6cd2d821a
Rename NeedsSetToChangeDiffSize to HasAggressiveSymbolFolding which is a much
...
better name and matches what is used in the MachO writer.
llvm-svn: 122443
2010-12-22 21:51:29 +00:00
ac8173cf71
MC/Mach-O/ARM: Don't try to use scattered relocs for BR24 fixups.
...
llvm-svn: 122441
2010-12-22 21:26:43 +00:00
1af01a69d4
Add reduced test from 8845.
...
llvm-svn: 122438
2010-12-22 21:15:13 +00:00
0e14b61c0b
Revert r122359 while I debug PR8845.
...
llvm-svn: 122427
2010-12-22 19:05:49 +00:00
6b5d2519b3
Fix another conditional expression mismatched enum type warning.
...
llvm-svn: 122419
2010-12-22 18:25:55 +00:00
a45cfbd405
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.
llvm-svn: 122414
2010-12-22 17:15:25 +00:00
bab9456f81
Make this test not depend on how the variable is named.
...
llvm-svn: 122413
2010-12-22 17:08:04 +00:00
45140d2efc
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.
llvm-svn: 122412
2010-12-22 16:52:19 +00:00
11617c8666
MC/Mach-O/ARM: Clone off an ARM version of RecordScatteredRelocation until I figure out how it is supposed to work.
...
llvm-svn: 122410
2010-12-22 16:45:29 +00:00
dde72ef0c1
MC/Mach-O: Return to reporting errors if we see unexpected fixup kinds.
...
llvm-svn: 122409
2010-12-22 16:32:41 +00:00
a191cfd97e
MC/Mach-O/ARM: Recognize generic _Data_N fixup kinds.
...
llvm-svn: 122408
2010-12-22 16:32:37 +00:00
9ccf843a61
MC/Mach-O/ARM: Add enough relocation logic to get BR24 relocations.
...
llvm-svn: 122407
2010-12-22 16:19:24 +00:00
56f13732e2
MC/Mach-O/ARM: Fix thinko.
...
llvm-svn: 122406
2010-12-22 16:19:20 +00:00
50ce2f06de
Use references and simplify.
...
llvm-svn: 122405
2010-12-22 16:11:57 +00:00
73c0ae77ca
Simplify the handling of .size expressions.
...
llvm-svn: 122404
2010-12-22 16:03:00 +00:00
083132e131
MC/Mach-O/ARM: Stub out RecordARMRelocation, which is mostly a copy of
...
RecordRelocation with lots of FIXMEs.
llvm-svn: 122402
2010-12-22 13:50:05 +00:00
a63db77f2e
Simplify.
...
llvm-svn: 122401
2010-12-22 13:49:56 +00:00
1e5be3653c
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.
llvm-svn: 122400
2010-12-22 13:49:43 +00:00
fbb9ac3cca
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.
llvm-svn: 122399
2010-12-22 13:36:08 +00:00
aaedf8be1c
ptx: add ld instruction and test
...
llvm-svn: 122398
2010-12-22 10:38:51 +00:00
3547d2ebd8
Add some statistics, good for understanding how much more powerful
...
instcombine is compared to instsimplify.
llvm-svn: 122397
2010-12-22 09:40:51 +00:00
9f2b3842a3
Fixes file extension for loadable modules on OS X.
...
Patch by Wesley Peck!
llvm-svn: 122395
2010-12-22 08:30:17 +00:00
cafc1e60bb
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.
llvm-svn: 122392
2010-12-22 08:02:57 +00:00
9a499e96eb
more cleanups, move a check for "roundedness" earlier to reject
...
unhanded cases faster and simplify code.
llvm-svn: 122391
2010-12-22 08:01:44 +00:00
222374d886
reduce indentation and improve comments, no functionality change.
...
llvm-svn: 122389
2010-12-22 07:36:50 +00:00
ff2cd2ea6c
Don't generate carry bit when loading immediate values on the Microblaze.
...
llvm-svn: 122385
2010-12-22 01:29:32 +00:00
3a3a5795c5
Add support for some of the LLVM atomic operations to the MBlaze backend.
...
llvm-svn: 122384
2010-12-22 01:15:01 +00:00
1cd1554ca0
Modeling the carry bit in the MSR register of the MicroBlaze.
...
llvm-svn: 122381
2010-12-22 00:53:07 +00:00
8143c61b91
Fix a regression introduced into the MBlaze delay slot filler.
...
llvm-svn: 122379
2010-12-22 00:22:59 +00:00
5ab8d4b5e5
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.
llvm-svn: 122378
2010-12-21 23:54:34 +00:00
890cb2d506
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).
llvm-svn: 122377
2010-12-21 23:43:23 +00:00
12470778d7
Remove dead code.
...
llvm-svn: 122371
2010-12-21 22:31:24 +00:00
fbb3ed8774
In DelayForLiveRegsBottomUp, handle instructions that read and write
...
the same physical register. Simplifies the fix from the previous
checkin r122211.
llvm-svn: 122370
2010-12-21 22:27:44 +00:00
2085a96513
whitespace
...
llvm-svn: 122368
2010-12-21 22:25:04 +00:00
a94e36bbee
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.
llvm-svn: 122366
2010-12-21 21:55:50 +00:00
f6ddc4a1de
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
llvm-svn: 122364
2010-12-21 21:41:44 +00:00
43493c089f
GVN's Expression is not POD-like (it contains a SmallVector). Simplify code while at it.
...
llvm-svn: 122362
2010-12-21 21:30:19 +00:00
87c47499c6
Revert 122353-122355 for the moment, they broke stuff.
...
llvm-svn: 122360
2010-12-21 21:22:27 +00:00
a468ae02cb
Simplify EvaluateAsAbsolute now that EvaluateAsRelocatableImpl does all
...
the folding it can.
llvm-svn: 122359
2010-12-21 20:51:42 +00:00
6bdb49ded8
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.
llvm-svn: 122356
2010-12-21 20:35:18 +00:00
caf42aa6a4
Add a new transform to DAGCombiner.
...
llvm-svn: 122355
2010-12-21 20:10:51 +00:00
fa5dc82fda
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.
llvm-svn: 122354
2010-12-21 20:06:19 +00:00
d64931df77
Shift by the word size is invalid IR; don't create it.
...
llvm-svn: 122353
2010-12-21 20:00:06 +00:00
NAKAMURA Takumi