Duncan Sands [Thu, 4 Oct 2012 13:07:26 +0000 (13:07 +0000)]
Fix wrong name in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165224
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Chandler Carruth [Thu, 4 Oct 2012 12:33:50 +0000 (12:33 +0000)]
Fix PR13969, a mini-phase-ordering issue with the new SROA pass.
Currently, we re-visit allocas when something changes about the way they
might be *split* to allow better scalarization to take place. However,
we weren't handling the case when the *promotion* is what would change
the behavior of SROA. When an address derived from an alloca is stored
into another alloca, we consider the first to have escaped. If the
second is ever promoted to an SSA value, we will suddenly be able to run
the SROA pass on the first alloca.
This patch adds explicit support for this form if iteration. When we
detect a store of a pointer derived from an alloca, we flag the
underlying alloca for reprocessing after promotion. The logic works hard
to only do this when there is definitely going to be promotion and it
might remove impediments to the analysis of the alloca.
Thanks to Nick for the great test case and Benjamin for some sanity
check review.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165223
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Duncan Sands [Thu, 4 Oct 2012 10:54:40 +0000 (10:54 +0000)]
The memcpy optimizer was happily doing call slot forwarding when the new memory
was less aligned than the old. In the testcase this results in an overaligned
memset: the memset alignment was correct for the original memory but is too much
for the new memory. Fix this by either increasing the alignment of the new
memory or bailing out if that isn't possible. Should fix the gcc-4.7 self-host
buildbot failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165220
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Chandler Carruth [Thu, 4 Oct 2012 10:39:28 +0000 (10:39 +0000)]
Teach the integer-promotion rewrite strategy to be endianness aware.
Sorry for this being broken so long. =/
As part of this, switch all of the existing tests to be Little Endian,
which is the behavior I was asserting in them anyways! Add in a new
big-endian test that checks the interesting behavior there.
Another part of this is to tighten the rules abotu when we perform the
full-integer promotion. This logic now rejects cases where there fully
promoted integer is a non-multiple-of-8 bitwidth or cases where the
loads or stores touch bits which are in the allocated space of the
alloca but are not loaded or stored when accessing the integer. Sadly,
these aren't really observable today as the rest of the pass will
already ensure the invariants hold. However, the latter situation is
likely to become a potential concern in the future.
Thanks to Benjamin and Duncan for early review of this patch. I'm still
looking into whether there are further endianness issues, please let me
know if anyone sees BE failures persisting past this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165219
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Bill Wendling [Thu, 4 Oct 2012 07:19:46 +0000 (07:19 +0000)]
Use method to query if there are attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165213
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Bill Wendling [Thu, 4 Oct 2012 07:18:12 +0000 (07:18 +0000)]
Add method to query for NoCapture attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165212
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Bill Wendling [Thu, 4 Oct 2012 07:17:46 +0000 (07:17 +0000)]
Use method to query for NoAlias attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165211
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Bill Wendling [Thu, 4 Oct 2012 07:08:30 +0000 (07:08 +0000)]
Use attribute query methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165210
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Bill Wendling [Thu, 4 Oct 2012 06:58:52 +0000 (06:58 +0000)]
Use method to query for attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165209
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Bill Wendling [Thu, 4 Oct 2012 06:52:09 +0000 (06:52 +0000)]
Add method to query for 'NoAlias' attribute on call/invoke instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165208
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Bill Wendling [Thu, 4 Oct 2012 06:49:41 +0000 (06:49 +0000)]
Use method to query for attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165207
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Bill Wendling [Thu, 4 Oct 2012 06:48:57 +0000 (06:48 +0000)]
Query for attributes via the correct method call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165206
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Bill Wendling [Thu, 4 Oct 2012 06:43:21 +0000 (06:43 +0000)]
Use new accessor methods to query for attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165205
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Kostya Serebryany [Thu, 4 Oct 2012 05:28:50 +0000 (05:28 +0000)]
[tsan] add 3 internal flags for fine-grain control of what is instrumented and what is not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165204
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Craig Topper [Thu, 4 Oct 2012 05:18:31 +0000 (05:18 +0000)]
Remove template from function that is only used with one type after r165092.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165203
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Lang Hames [Thu, 4 Oct 2012 04:50:53 +0000 (04:50 +0000)]
Fix reg mask slot test, and preserve LiveIntervals and VirtRegMap in the PBQP
allocator. Fixes PR13945.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165201
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Sean Silva [Thu, 4 Oct 2012 04:41:27 +0000 (04:41 +0000)]
docs: Fix typo on front page
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165200
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Jack Carter [Thu, 4 Oct 2012 04:03:53 +0000 (04:03 +0000)]
Implement methods that enable expansion of load immediate
macro instruction (li) in the assembler.
We have identified three possible expansions depending on
the size of immediate operand:
1) for 0 ≤ j ≤ 65535.
li d,j =>
ori d,$zero,j
2) for −32768 ≤ j < 0.
li d,j =>
addiu d,$zero,j
3) for any other value of j that is representable as a 32-bit integer.
li d,j =>
lui d,hi16(j)
ori d,d,lo16(j)
All of the above have been implemented in ths patch.
Contributer: Vladimir Medic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165199
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Sean Silva [Thu, 4 Oct 2012 03:56:23 +0000 (03:56 +0000)]
docs: Sphinxify GoldPlugin document.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165198
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Jack Carter [Thu, 4 Oct 2012 02:29:46 +0000 (02:29 +0000)]
This patch is a partial implementation of mips .set assembler directive. Directive is defined as follows:
.set option
The patch implements following options
at - lets the assembler use the $at register for macros,
but generates warnings if the source program uses $at
noat - let source programs use $at without issuingwarnings.
noreorder - prevents the assembler from reordering machine
language instructions.
nomacro - causes the assembler to print a warning whenever
an assembler operation generates more than one
machine language instruction.
macro - lets the assembler generate multiple machine instructions
from a single assembler instruction
reorder - lets the assembler reorder machine language
instructions to improve performance
The above variants are parsed and their boolean values set or unset.
The code to actually use them will come later.
Following options are not implemented yet:
nomips16
nomicromips
move
nomove
Contributer: Vladimir Medic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165194
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Sean Silva [Thu, 4 Oct 2012 00:54:27 +0000 (00:54 +0000)]
tblgen: Whitespace and 80-col cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165190
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Jordan Rose [Thu, 4 Oct 2012 00:47:59 +0000 (00:47 +0000)]
Make sure 'prefix-clang++' is aliased to 'prefix-clang', not 'clang'.
When aliasing tools, rather than using the base TOOLEXENAME, we should
instead use the built tool's basename (for 'make') or the installed
tool's basename (for 'make install').
This should not cause any changes for anyone building unprefixed 'clang'
and 'clang++' tools.
Patch by Rick Foos!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165189
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Andrew Trick [Thu, 4 Oct 2012 00:24:34 +0000 (00:24 +0000)]
Enable -schedmodel, but prefer itineraries until we have more benchmark data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165188
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Jakub Staszak [Wed, 3 Oct 2012 23:59:47 +0000 (23:59 +0000)]
Fix PR13967.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165187
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Bill Wendling [Wed, 3 Oct 2012 23:52:10 +0000 (23:52 +0000)]
Add an explicit -object_path_lto flag during linking with a uniquified temporary
file name if building Apple-style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165185
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Michael Liao [Wed, 3 Oct 2012 23:43:52 +0000 (23:43 +0000)]
Clean up tailing whitespaces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165182
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Andrew Trick [Wed, 3 Oct 2012 23:06:32 +0000 (23:06 +0000)]
Added instregex support to TableGen subtarget emitter.
This allows the processor-specific machine model to override selected
base opcodes without any fanciness.
e.g. InstRW<[CoreXWriteVANDP], (instregex "VANDP")>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165180
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Andrew Trick [Wed, 3 Oct 2012 23:06:28 +0000 (23:06 +0000)]
TableGen subtarget emitter, nearly first class support for SchedAlias.
A processor can now arbitrarily alias one SchedWrite onto
another. Only the SchedAlias definition need be within the processor
model. The aliased SchedWrite may be a SchedVariant, WriteSequence, or
transitively refer to another alias.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165179
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Andrew Trick [Wed, 3 Oct 2012 23:06:25 +0000 (23:06 +0000)]
Cleanup TableGen subtarget emitter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165178
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Chad Rosier [Wed, 3 Oct 2012 22:18:38 +0000 (22:18 +0000)]
[ms-inline asm] Default to the 'm' constraint. This matches the behavior of the
MSVC compiler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165174
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Chad Rosier [Wed, 3 Oct 2012 22:06:44 +0000 (22:06 +0000)]
[ms-inline asm] Add support in the X86AsmPrinter for printing memory references
in the Intel syntax.
The MC layer supports emitting in the Intel syntax, but this would require the
inline assembly MachineInstr to be lowered to an MCInst before emission. This
is potential future work, but for now emitting directly from the MachineInstr
suffices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165173
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Jack Carter [Wed, 3 Oct 2012 21:58:54 +0000 (21:58 +0000)]
This patch moves from using a hard coded number (4)
for the number of bytes in a particular instruction
to using
const MCInstrDesc &Desc = MCII.get(TmpInst.getOpcode());
Desc.getSize()
This is necessary with the advent of 16 bit instructions with
mips16 and micromips. It is also puts Mips in compliance with
the other targets for getting instruction size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165171
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Sean Silva [Wed, 3 Oct 2012 21:31:08 +0000 (21:31 +0000)]
tblgen: Remove last traces of old TableGenMain API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165168
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Sean Silva [Wed, 3 Oct 2012 21:29:19 +0000 (21:29 +0000)]
tblgen: Migrate llvm-tblgen to new TableGenMain API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165166
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Sean Silva [Wed, 3 Oct 2012 21:29:18 +0000 (21:29 +0000)]
tblgen: Put new TableGenMain API in place.
In order to avoid rev-lock with Clang when moving to the new API, also
preserve the current API temporarily and insert a shim to implement the
new API in terms of the old.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165165
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Bill Wendling [Wed, 3 Oct 2012 21:19:35 +0000 (21:19 +0000)]
Add function to return return attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165164
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Bill Wendling [Wed, 3 Oct 2012 21:17:09 +0000 (21:17 +0000)]
Update to use the predicate methods to query if an attribute exists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165163
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Nadav Rotem [Wed, 3 Oct 2012 19:30:31 +0000 (19:30 +0000)]
Fix a cycle in the DAG. In this code we replace multiple loads with a single load and
multiple stores with a single load. We create the wide loads and stores (and their chains)
before we remove the scalar loads and stores and fix the DAG chain. We attempted to merge
loads with a different chain. When that happened, the assumption that it is safe to RAUW
broke and a cycle was introduced.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165148
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Nick Kledzik [Wed, 3 Oct 2012 19:27:25 +0000 (19:27 +0000)]
Use unsigned long long instead of uin64_t for OS where that matters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165147
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Chad Rosier [Wed, 3 Oct 2012 19:00:20 +0000 (19:00 +0000)]
Typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165141
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Benjamin Kramer [Wed, 3 Oct 2012 18:54:36 +0000 (18:54 +0000)]
Don't call getAsUnsignedInteger directly, it fails to compile if uint64_t is not "unsigned long long".
while there add more test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165140
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Nick Kledzik [Wed, 3 Oct 2012 18:15:27 +0000 (18:15 +0000)]
Add getAsUnsignedInteger test case that checks that known bad values are rejected
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165136
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Bill Wendling [Wed, 3 Oct 2012 18:10:49 +0000 (18:10 +0000)]
No need to call functions which do the same thing as the default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165135
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Bill Wendling [Wed, 3 Oct 2012 18:08:57 +0000 (18:08 +0000)]
Remove assert that's too restrictive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165134
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Bill Wendling [Wed, 3 Oct 2012 17:54:26 +0000 (17:54 +0000)]
Add methods which query for the specific attribute instead of using the
enums. This allows for better encapsulation of the Attributes class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165132
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Tim Northover [Wed, 3 Oct 2012 16:29:42 +0000 (16:29 +0000)]
Implement .rel relocation for R_ARM_ABS32 in MCJIT.
Patch by Amara Emerson.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165128
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Preston Gurd [Wed, 3 Oct 2012 16:11:44 +0000 (16:11 +0000)]
This Patch corrects a problem whereby the optimization to use a faster divide
instruction (for Intel Atom) was not being done by Clang, because
the type context used by Clang is not the default context.
It fixes the problem by getting the global context types for each div/rem
instruction in order to compare them against the types in the BypassTypeMap.
Tests for this will be done as a separate patch to Clang.
Patch by Tyler Nowicki.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165126
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Nadav Rotem [Wed, 3 Oct 2012 16:11:15 +0000 (16:11 +0000)]
A DAGCombine optimization for mergeing consecutive stores to memory. The optimization
is not profitable in many cases because modern processors perform multiple stores
in parallel and merging stores prior to merging requires extra work. We handle two main cases:
1. Store of multiple consecutive constants:
q->a = 3;
q->4 = 5;
In this case we store a single legal wide integer.
2. Store of multiple consecutive loads:
int a = p->a;
int b = p->b;
q->a = a;
q->b = b;
In this case we load/store either ilegal vector registers or legal wide integer registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165125
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Preston Gurd [Wed, 3 Oct 2012 15:55:13 +0000 (15:55 +0000)]
Set up MCSchedModel after detecting the CPU type in X86SubTarget.
Corrects a problem whereby MCSchedModel was not being set up when
the CPU type was auto-detected.
Patch by Andy Zhang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165122
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Dmitry Vyukov [Wed, 3 Oct 2012 13:19:20 +0000 (13:19 +0000)]
tsan: update the test for new atomic enums
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165109
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Dmitry Vyukov [Wed, 3 Oct 2012 13:13:54 +0000 (13:13 +0000)]
tsan: update the test for new atomic enums
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165108
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Dmitry Vyukov [Wed, 3 Oct 2012 13:00:57 +0000 (13:00 +0000)]
tsan: prepare for migration to new memory_order enum values (ABI compatible)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165107
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Silviu Baranga [Wed, 3 Oct 2012 08:29:36 +0000 (08:29 +0000)]
Fixed a bug in the ExecutionDependencyFix pass that caused dependencies to not propagate through implicit defs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165102
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Chandler Carruth [Wed, 3 Oct 2012 08:26:28 +0000 (08:26 +0000)]
Fix an issue where we failed to adjust the alignment constraint on
a memcpy to reflect that '0' has a different meaning when applied to
a load or store. Now we correctly use underaligned loads and stores for
the test case added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165101
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Chandler Carruth [Wed, 3 Oct 2012 08:14:02 +0000 (08:14 +0000)]
Try to use a better set of abstractions for computing the alignment
necessary during rewriting. As part of this, fix a real think-o here
where we might have left off an alignment specification when the address
is in fact underaligned. I haven't come up with any way to trigger this,
as there is always some other factor that reduces the alignment, but it
certainly might have been an observable bug in some way I can't think
of. This also slightly changes the strategy for placing explicit
alignments on loads and stores to only do so when the alignment does not
match that required by the ABI. This causes a few redundant alignments
to go away from test cases.
I've also added a couple of tests that really push on the alignment that
we end up with on loads and stores. More to come here as I try to fix an
underlying bug I have conjectured and produced test cases for, although
it's not clear if this bug is the one currently hitting dragonegg's
gcc47 bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165100
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Eric Christopher [Wed, 3 Oct 2012 08:10:01 +0000 (08:10 +0000)]
Revert 165051-165049 while looking into the foreach.m failure in
more detail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165099
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Craig Topper [Wed, 3 Oct 2012 06:47:18 +0000 (06:47 +0000)]
Fix doxygen comment to match function name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165094
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Craig Topper [Wed, 3 Oct 2012 06:26:11 +0000 (06:26 +0000)]
Remove unused function that used to get itineraries from SubTargetFeatures. This is done from MCSubTargetInfo these days.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165092
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Craig Topper [Wed, 3 Oct 2012 03:56:12 +0000 (03:56 +0000)]
Fix 80-column violation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165089
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NAKAMURA Takumi [Wed, 3 Oct 2012 01:42:37 +0000 (01:42 +0000)]
test/ExecutionEngine/MCJIT: MCJIT should work also on mingw.
FIXME: Also cygwin?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165081
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Chandler Carruth [Wed, 3 Oct 2012 01:04:07 +0000 (01:04 +0000)]
Third try at fixing this. ;] Go back to using std::remove_if, which has
most of the behavior we want, but wrap the predicate in one which erases
elements from the set if they pass the predicate. Oh what I wouldn't
give for a lambda here.
Let me know if the predicate wrapping is too much magic. ;]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165076
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Jakob Stoklund Olesen [Wed, 3 Oct 2012 00:51:32 +0000 (00:51 +0000)]
The early if conversion pass is ready to be used as an opt-in.
Enable the pass by default for targets that request it, and change the
-enable-early-ifcvt to the opposite -disable-early-ifcvt.
There are still some x86 regressions when enabling early if-conversion
because of the missing machine models. Disable the pass for x86 until
machine models are added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165075
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Chandler Carruth [Wed, 3 Oct 2012 00:03:00 +0000 (00:03 +0000)]
Switch the SetVector::remove_if implementation to use partition which
preserves the values of the relocated entries, unlikely remove_if. This
allows walking them and erasing them.
Also flesh out the predicate we are using for this to support the
various constraints actually imposed on a UnaryPredicate -- without this
we can't compose it with std::not1.
Thanks to Sean Silva for the review here and noticing the issue with
std::remove_if.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165073
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Evan Cheng [Tue, 2 Oct 2012 23:49:13 +0000 (23:49 +0000)]
Fix a serious X86 instruction selection bug. In
X86DAGToDAGISel::PreprocessISelDAG(), isel is moving load inside
callseq_start / callseq_end so it can be folded into a call. This can
create a cycle in the DAG when the call is glued to a copytoreg. We
have been lucky this hasn't caused too many issues because the pre-ra
scheduler has special handling of call sequences. However, it has
caused a crash in a specific tailcall case.
rdar://
12393897
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165072
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Eric Christopher [Tue, 2 Oct 2012 23:43:11 +0000 (23:43 +0000)]
Revert "Don't use a debug location for frame setup instructions in the"
This reverts 165055 and 165052 temporarily while I look at debugger
failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165071
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Chad Rosier [Tue, 2 Oct 2012 23:38:50 +0000 (23:38 +0000)]
Revert 165057, per Jim's request. This requires further discussion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165069
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Jack Carter [Tue, 2 Oct 2012 23:09:40 +0000 (23:09 +0000)]
The mips 64bit instructions DSLL, DSRA, DSRL, DEXT and DINS get transformed by the assembler or through codegen direct object output to other variants based on the value of the immediate values of the operands.
If the code is generated as assembler, this transformation does not occur assuming that it will occur later in the assembler.
This code was originally called from MipsAsmPrinter.cpp and we needed to check for OutStreamer.hasRawTextSupport(). This was not a good place for it and has been moved to MCTargetDesc/MipsMCCodeEmitter.cpp where both direct object and the assembler use it it automagically.
The test cases have been checked in for a number of weeks now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165067
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Chandler Carruth [Tue, 2 Oct 2012 22:46:45 +0000 (22:46 +0000)]
Teach the new SROA to handle cases where an alloca that has already been
scheduled for processing on the worklist eventually gets deleted while
we are processing another alloca, fixing the original test case in
PR13990.
To facilitate this, add a remove_if helper to the SetVector abstraction.
It's not easy to use the standard abstractions for this because of the
specifics of SetVectors types and implementation.
Finally, a nice small test case is included. Thanks to Benjamin for the
fantastic reduced test case here! All I had to do was delete some empty
basic blocks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165065
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Chandler Carruth [Tue, 2 Oct 2012 22:46:40 +0000 (22:46 +0000)]
Clean up these doxygen comments to follow the proposed new style. This
also makes it more consistent with Clang and several passes' doxygen
style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165064
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Nick Lewycky [Tue, 2 Oct 2012 22:45:06 +0000 (22:45 +0000)]
Make sure to put our sret argument into %rax on x86-64. Fixes PR13563!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165063
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Jakob Stoklund Olesen [Tue, 2 Oct 2012 22:45:03 +0000 (22:45 +0000)]
Remove the old coalescer algorithm.
The new algorithm has been enabled by default for almost a week now and
seems to be stable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165062
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Jakob Stoklund Olesen [Tue, 2 Oct 2012 22:08:36 +0000 (22:08 +0000)]
Handle reserved registers more accurately in handleMove().
Reserved register live ranges look like a set of dead defs - any uses of
reserved registers are ignored.
Instead of skipping the updating of reserved register operands entirely,
just ignore the use operands and treat the def operands normally.
No test case, handleMove() is not commonly used yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165060
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Chad Rosier [Tue, 2 Oct 2012 21:49:07 +0000 (21:49 +0000)]
[ms-inline asm] Add basic support for wildcard MCParsedAsmOperands. This type
of operand is specific to MS-style inline assembly and should not be generated
when parsing normal assembly.
The purpose of the wildcard operands are to allow the AsmParser to match
multiple instructions (i.e., MCInsts) to a given ms-style asm statement. For
the time being the matcher just returns the first match. This patch only
implements wildcard matches for memory operands. Support for register
wildcards will be added in the near future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165057
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Jakob Stoklund Olesen [Tue, 2 Oct 2012 21:46:39 +0000 (21:46 +0000)]
Make sure the whole live range is covered when values are pruned twice.
JoinVals::pruneValues() calls LIS->pruneValue() to avoid conflicts when
overlapping two different values. This produces a set of live range end
points that are used to reconstruct the live range (with SSA update)
after joining the two registers.
When a value is pruned twice, the set of end points was insufficient:
v1 = DEF
v1 = REPLACE1
v1 = REPLACE2
KILL v1
The end point at KILL would only reconstruct the live range from
REPLACE2 to KILL, leaving the range REPLACE1-REPLACE2 dead.
Add REPLACE2 as an end point in this case so the full live range is
reconstructed.
This fixes PR13999.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165056
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Eric Christopher [Tue, 2 Oct 2012 21:44:16 +0000 (21:44 +0000)]
Allow alternate instructions to silence bot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165055
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Eric Christopher [Tue, 2 Oct 2012 21:44:12 +0000 (21:44 +0000)]
80-col.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165054
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Andrew Kaylor [Tue, 2 Oct 2012 21:18:39 +0000 (21:18 +0000)]
Clean-up of memory buffer and object ownership model in MCJIT
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165053
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Eric Christopher [Tue, 2 Oct 2012 21:17:00 +0000 (21:17 +0000)]
Don't use a debug location for frame setup instructions in the
prologue. Also skip frame setup instructions when looking for the
first location.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165052
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Eric Christopher [Tue, 2 Oct 2012 21:16:55 +0000 (21:16 +0000)]
Use the existing DebugLoc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165051
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Eric Christopher [Tue, 2 Oct 2012 21:16:53 +0000 (21:16 +0000)]
Make the location a parameter since we may not want the next one
in the block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165050
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Eric Christopher [Tue, 2 Oct 2012 21:16:50 +0000 (21:16 +0000)]
Remove the SavePoint infrastructure from fast isel, replace
with just an insert point from the MachineBasicBlock and let
the location be updated as we access it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165049
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Bill Wendling [Tue, 2 Oct 2012 20:32:23 +0000 (20:32 +0000)]
Set the 'build clang only' flag when we're building only clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165042
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Nick Kledzik [Tue, 2 Oct 2012 20:01:48 +0000 (20:01 +0000)]
Improve overflow detection in StringRef::getAsUnsignedInteger().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165038
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Chandler Carruth [Tue, 2 Oct 2012 18:57:13 +0000 (18:57 +0000)]
Fix another crasher in SROA, reported by Joel.
We require that the indices into the use lists are stable in order to
build fast lookup tables to locate a particular partition use from an
operand of a PHI or select. This is (obviously in hind sight)
incompatible with erasing elements from the array. Really, we don't want
to erase anyways. It is expensive, and a rare operation. Instead, simply
weaken the contract of the PartitionUse structure to allow null Use
pointers to represent dead uses. Now we can clear out the pointer to
mark things as dead, and all it requires is adding some 'continue'
checks to the various loops.
I'm still reducing a test case for this, as the test case I have is
huge. I think this one I can get a nice test case for though, as it was
much more deterministic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165032
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Andrew Kaylor [Tue, 2 Oct 2012 18:38:34 +0000 (18:38 +0000)]
Support for generating ELF objects on Windows.
This adds 'elf' as a recognized target triple environment value and overrides the default generated object format on Windows platforms if that value is present. This patch also enables MCJIT tests on Windows using the new environment value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165030
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Chandler Carruth [Tue, 2 Oct 2012 17:49:47 +0000 (17:49 +0000)]
Fix a silly coding error on my part. The whole point of the speculator
being separate was that it can grow the use list. As a consequence, we
can't use the iterator-pair interface, we need an index based interface.
Expose such an interface from the AllocaPartitioning, and use it in the
speculator.
This should at least fix a use-after-free bug found by Duncan, and may
fix some of the other crashers.
I don't have a nice deterministic test case yet, but if I get a good
one, I'll add it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165027
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Benjamin Kramer [Tue, 2 Oct 2012 15:49:34 +0000 (15:49 +0000)]
Fix broken tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165019
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Duncan Sands [Tue, 2 Oct 2012 15:03:49 +0000 (15:03 +0000)]
Fix PR13991: legalizing an overflowing multiplication operation is harder than
the add/sub case since in the case of multiplication you also have to check that
the operation in the larger type did not overflow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165017
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James Molloy [Tue, 2 Oct 2012 10:57:08 +0000 (10:57 +0000)]
Add default JIT LIT variable.
Patch by David Tweed!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164996
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Chandler Carruth [Tue, 2 Oct 2012 04:24:01 +0000 (04:24 +0000)]
Turn the new SROA pass back on. Let's see if it sticks this time. =]
Again, let me know if anything breaks due to this!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164986
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Chad Rosier [Tue, 2 Oct 2012 00:25:57 +0000 (00:25 +0000)]
Fix 80-column violations. Cleanup whitespace in generated code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164983
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Chad Rosier [Mon, 1 Oct 2012 23:45:51 +0000 (23:45 +0000)]
[ms-inline asm] Add the convertToMapAndConstraints() function that is used to
map constraints and MCInst operands to inline asm operands. This replaces the
getMCInstOperandNum() function.
The logic to determine the constraints are not in place, so we still default to
a register constraint (i.e., "r"). Also, we no longer build the MCInst but
rather return just the opcode to get the MCInstrDesc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164979
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NAKAMURA Takumi [Mon, 1 Oct 2012 22:48:07 +0000 (22:48 +0000)]
test/CodeGen/X86/red-zone2.ll: Add -mtriple=x86_64-linux, and FileCheck-ize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164975
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Jim Grosbach [Mon, 1 Oct 2012 22:20:54 +0000 (22:20 +0000)]
MachO: direct-to-object attribute for data-in-code markers.
The target backend can support data-in-code load commands even when
the assembler doesn't, or vice-versa. Allow targets to opt-in for
direct-to-object.
PR13973.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164974
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Reed Kotler [Mon, 1 Oct 2012 21:35:06 +0000 (21:35 +0000)]
checking test case for r164811. was an omission to not check this in. this was already approved
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164972
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Chad Rosier [Mon, 1 Oct 2012 20:53:03 +0000 (20:53 +0000)]
[ms-inline asm] Expose the getReg() function in the base class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164969
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Michael J. Spencer [Mon, 1 Oct 2012 19:59:21 +0000 (19:59 +0000)]
[Docs] Update File Headers section to cover doxygen style file level docs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164964
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Jordan Rose [Mon, 1 Oct 2012 18:40:32 +0000 (18:40 +0000)]
Re-enable support for --program-prefix.
The Apple buildbots have been modified not to pass --target,
so they shouldn't choke on a default program prefix anymore.
Patch by Rick Foos!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164956
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Micah Villmow [Mon, 1 Oct 2012 17:07:51 +0000 (17:07 +0000)]
Forgot the SPIR test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164949
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Micah Villmow [Mon, 1 Oct 2012 17:01:31 +0000 (17:01 +0000)]
Add in support for SPIR to LLVM core. This adds a new target and two new calling conventions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164948
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