Richard Sandiford [Fri, 5 Jul 2013 12:55:00 +0000 (12:55 +0000)]
[SystemZ] Clean up register scavenging code
SystemZ wants normal register scavenging slots, as close to the stack or
frame pointer as possible. The only reason it was using custom code was
because PrologEpilogInserter assumed an x86-like layout, where the frame
pointer is at the opposite end of the frame from the stack pointer.
This meant that when frame pointer elimination was disabled,
the slots ended up being as close as possible to the incoming
stack pointer, which is the opposite of what we want on SystemZ.
This patch adds a new knob to say which layout is used and converts
SystemZ to use target-independent scavenging slots. It's one of the pieces
needed to support frame-to-frame MVCs, where two slots might be required.
The ABI requires us to allocate 160 bytes for calls, so one approach
would be to use that area as temporary spill space instead. It would need
some surgery to make sure that the slot isn't live across a call though.
I stuck to the "isFPCloseToIncomingSP - ..." style comment on the
"do what the surrounding code does" principle. The FP case is already
covered by several Systemz/frame-* tests, which fail without the
PrologueEpilogueInserter change, so no new ones are needed.
No behavioural change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185696
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 5 Jul 2013 12:44:49 +0000 (12:44 +0000)]
Use simpler version of exists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185695
91177308-0d34-0410-b5e6-
96231b3b80d8
Ulrich Weigand [Fri, 5 Jul 2013 12:33:03 +0000 (12:33 +0000)]
[PowerPC] Make test case buildable with GNU as
The ppc64-fixups.s test currently fails to build with GNU as, since it
does not support plain symbols as arguments to li/lis. Rewrite the test
for R_PPC64_ADDR16 and R_PPC64_REL16 to use lwz instead.
Allowing the test case to be built with both LLVM and GNU as makes it
easier to spot unwanted difference in the output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185694
91177308-0d34-0410-b5e6-
96231b3b80d8
Ulrich Weigand [Fri, 5 Jul 2013 12:22:36 +0000 (12:22 +0000)]
[PowerPC] Support @tls in the asm parser
This adds support for the last missing construct to parse TLS-related
assembler code:
add 3, 4, symbol@tls
The ADD8TLS currently hard-codes the @tls into the assembler string.
This cannot be handled by the asm parser, since @tls is parsed as
a symbol variant. This patch changes ADD8TLS to have the @tls suffix
printed as symbol variant on output too, which allows us to remove
the isCodeGenOnly marker from ADD8TLS. This in turn means that we
can add a AsmOperand to accept @tls marked symbols on input.
As a side effect, this means that the fixup_ppc_tlsreg fixup type
is no longer necessary and can be merged into fixup_ppc_nofixup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185692
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 5 Jul 2013 12:12:43 +0000 (12:12 +0000)]
Remove NoOperation.
parseCommandLine prints and error and exists if no operation is specified, so
it never returns NoOperation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185691
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Fri, 5 Jul 2013 10:20:57 +0000 (10:20 +0000)]
Simplify code. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185689
91177308-0d34-0410-b5e6-
96231b3b80d8
Joey Gouly [Fri, 5 Jul 2013 10:19:40 +0000 (10:19 +0000)]
PR16490: fix a crash in ARMDAGToDAGISel::SelectInlineAsm.
In the SelectionDAG immediate operands to inline asm are constructed as
two separate operands. The first is a constant of value InlineAsm::Kind_Imm
and the second is a constant with the value of the immediate.
In ARMDAGToDAGISel::SelectInlineAsm, if we reach an operand of Kind_Imm we
should skip over the next operand too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185688
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 5 Jul 2013 04:19:32 +0000 (04:19 +0000)]
Don't treat bitcode files specially in llvm-ar.
We really want bitcode files to behave as regular object files in archives, so
we don't need to track that a member is bitcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185681
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 5 Jul 2013 03:35:15 +0000 (03:35 +0000)]
Use the raw member names in Archive::Archive.
This a bit more efficient and avoids having a function that uses the string
table being called by a function that searches for it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185680
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 5 Jul 2013 02:50:03 +0000 (02:50 +0000)]
Add a --crash option to not.
Now the two possible uses of not are
* not cmd
Will return true if cmd doesn't crash and returns false.
* not --crash cmd
Will return true if cmd crashes.
It will be used/tested in a followup commit for the clang crash recovery
testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185678
91177308-0d34-0410-b5e6-
96231b3b80d8
David Majnemer [Fri, 5 Jul 2013 00:31:17 +0000 (00:31 +0000)]
InstCombine: (icmp eq B, 0) | (icmp ult A, B) -> (icmp ule A, B-1)
This transform allows us to turn IR that looks like:
%1 = icmp eq i64 %b, 0
%2 = icmp ult i64 %a, %b
%3 = or i1 %1, %2
ret i1 %3
into:
%0 = add i64 %b, -1
%1 = icmp uge i64 %0, %a
ret i1 %1
which means we go from lowering:
cmpq %rsi, %rdi
setb %cl
testq %rsi, %rsi
sete %al
orb %cl, %al
ret
to lowering:
decq %rsi
cmpq %rdi, %rsi
setae %al
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185677
91177308-0d34-0410-b5e6-
96231b3b80d8
Ahmed Bougacha [Thu, 4 Jul 2013 23:20:12 +0000 (23:20 +0000)]
Remove use of asymmetric std::lower_bound comparator.
VS 2008 doesn't like it when in debug mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185676
91177308-0d34-0410-b5e6-
96231b3b80d8
David Blaikie [Thu, 4 Jul 2013 23:15:18 +0000 (23:15 +0000)]
DebugInfo: Consider global variables without locations to be valid
We were being a bit too aggresive here in classifying global variables
with no global reference or constant value to be invalid - this would
cause LLVM to not emit the DWARF description of the global variable if
it had been optimized away, which isn't helpful for users who might
benefit from the global variable's description even if there's no
location information.
This also fixes a crasher issue here that I was unable to reduce a test
case for - involving a using decl (& subsequent
DW_TAG_imported_declaration ) of such a global variable that, once
optimized away, would crash when an attempt to emit the imported
declaration was made.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185675
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 4 Jul 2013 22:15:33 +0000 (22:15 +0000)]
Use a OwningPtr instead of a manual delete.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185673
91177308-0d34-0410-b5e6-
96231b3b80d8
Nico Rieck [Thu, 4 Jul 2013 21:37:26 +0000 (21:37 +0000)]
Initialize object file info before output streamer
r179494 switched to using the object file info to retrieve the default text
section for some MC streamers. It is possible that initializing an MC
streamer can request sections before the object file info is initialized
when the AutoInitSections flag is set on the streamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185670
91177308-0d34-0410-b5e6-
96231b3b80d8
Nico Rieck [Thu, 4 Jul 2013 21:32:07 +0000 (21:32 +0000)]
MC: Add .section directive to COFF
Supports GAS flags "abdnrswxy". No support for alignment or subsections.
Fixes PR16366.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185669
91177308-0d34-0410-b5e6-
96231b3b80d8
David Majnemer [Thu, 4 Jul 2013 21:17:49 +0000 (21:17 +0000)]
InstCombine: Reimplementation of visitUDivOperand
This transform was originally added in r185257 but later removed in
r185415. The original transform would create instructions speculatively
and then discard them if the speculation was proved incorrect. This has
been replaced with a scheme that splits the transform into two parts:
preflight and fold. While we preflight, we build up fold actions that
inform the folding stage on how to act.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185667
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 4 Jul 2013 19:40:23 +0000 (19:40 +0000)]
Add support for archives with no symbol table or string table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185664
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 4 Jul 2013 19:20:00 +0000 (19:20 +0000)]
Fix leak. Should bring back the valgrind bot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185663
91177308-0d34-0410-b5e6-
96231b3b80d8
Ulrich Weigand [Thu, 4 Jul 2013 18:28:46 +0000 (18:28 +0000)]
[PowerPC] Implement writeNopData
This implements a proper PPCAsmBackend::writeNopData routine
that actually writes PowerPC nop instructions.
This fixes the last remaining difference in object file output
(text section) between the integrated assembler and GNU as
that I've seen anywhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185662
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 4 Jul 2013 17:21:01 +0000 (17:21 +0000)]
Add 'not' in front of a command that is expected to fail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185659
91177308-0d34-0410-b5e6-
96231b3b80d8
Aaron Ballman [Thu, 4 Jul 2013 17:05:21 +0000 (17:05 +0000)]
Changing long to int for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185656
91177308-0d34-0410-b5e6-
96231b3b80d8
Joey Gouly [Thu, 4 Jul 2013 15:58:38 +0000 (15:58 +0000)]
Remove an unneeded call to 'UpdateThumbVFPPredicate', spotted by Amaury.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185651
91177308-0d34-0410-b5e6-
96231b3b80d8
Joey Gouly [Thu, 4 Jul 2013 14:57:20 +0000 (14:57 +0000)]
Add support for MC assembling and disassembling of vsel{ge, gt, eq, vs} instructions.
This adds a new decoder table/namespace 'VFPV8', as these instructions have their
top 4 bits as 0b1111, while other Thumb instructions have 0b1110.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185642
91177308-0d34-0410-b5e6-
96231b3b80d8
Ulrich Weigand [Thu, 4 Jul 2013 14:40:12 +0000 (14:40 +0000)]
[PowerPC] Add all trap mnemonics
This adds support for all basic and extended variants
of the trap instructions to the asm parser.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185638
91177308-0d34-0410-b5e6-
96231b3b80d8
Ulrich Weigand [Thu, 4 Jul 2013 14:24:00 +0000 (14:24 +0000)]
[PowerPC] Add asm parser support for CR expressions
This adds support for specifying condition registers and
condition register fields via expressions using the symbols
defined by the PowerISA, like "4*cr2+eq".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185633
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Thu, 4 Jul 2013 14:22:02 +0000 (14:22 +0000)]
SimplifyCFG: Teach switch generation some patterns that instcombine forms.
This allows us to create switches even if instcombine has munged two of the
incombing compares into one and some bit twiddling. This was motivated by enum
compares that are common in clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185632
91177308-0d34-0410-b5e6-
96231b3b80d8
Aaron Ballman [Thu, 4 Jul 2013 14:12:25 +0000 (14:12 +0000)]
Supporting ssize_t on WIN64 with its proper size. Patch thanks to David Cournapeau!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185627
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Thu, 4 Jul 2013 13:54:20 +0000 (13:54 +0000)]
Remove the EXCEPTIONADDR, EHSELECTION, and LSDAADDR ISD opcodes.
These exception-related opcodes are not used any longer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185625
91177308-0d34-0410-b5e6-
96231b3b80d8
Joey Gouly [Thu, 4 Jul 2013 10:04:08 +0000 (10:04 +0000)]
Add a V8FP instruction 'vcvt{b,t}' to convert between half and double precision.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185620
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Thu, 4 Jul 2013 04:53:49 +0000 (04:53 +0000)]
Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185618
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Thu, 4 Jul 2013 04:53:45 +0000 (04:53 +0000)]
Simplify landing pad lowering.
Stop using the ISD::EXCEPTIONADDR and ISD::EHSELECTION when lowering
landing pad arguments. These nodes were previously legalized into
CopyFromReg nodes, but that never worked properly because the
CopyFromReg node weren't guaranteed to be scheduled at the top of the
basic block.
This meant the exception pointer and selector registers could be
clobbered before being copied to a virtual register.
This patch copies the two physical registers to virtual registers at
the beginning of the basic block, and lowers the landingpad instruction
directly to two CopyFromReg nodes reading the *virtual* registers. This
is safe because virtual registers don't get clobbered.
A future patch will remove the ISD::EXCEPTIONADDR and ISD::EHSELECTION
nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185617
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Thu, 4 Jul 2013 04:32:39 +0000 (04:32 +0000)]
FastISel can only apend to basic blocks.
Compute the insertion point from the end of the basic block instead of
skipping labels from the front.
This caused failures in landing pads when live-in copies where inserted
before instruction selection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185616
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Thu, 4 Jul 2013 04:32:35 +0000 (04:32 +0000)]
Live-in copies go *after* EH_LABELs.
This will soon be tested by exception handling working at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185615
91177308-0d34-0410-b5e6-
96231b3b80d8
Nick Lewycky [Thu, 4 Jul 2013 03:51:53 +0000 (03:51 +0000)]
Tabs to spaces. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185612
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Thu, 4 Jul 2013 01:43:17 +0000 (01:43 +0000)]
Add a space between closing template '>' to unbreak build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185607
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Thu, 4 Jul 2013 01:31:24 +0000 (01:31 +0000)]
Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185606
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Thu, 4 Jul 2013 01:10:38 +0000 (01:10 +0000)]
Reapply r185601 with a fix for the cmake build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185605
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Thu, 4 Jul 2013 00:51:26 +0000 (00:51 +0000)]
Temporarily revert 185601 as it caused cmake build regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185603
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Thu, 4 Jul 2013 00:47:09 +0000 (00:47 +0000)]
Add support for futimens for platforms that don't support futimes.
Patch by pashev.igor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185601
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Thu, 4 Jul 2013 00:26:30 +0000 (00:26 +0000)]
Revert r185595-185596 which broke buildbots.
Revert "Simplify landing pad lowering."
Revert "Remove the EXCEPTIONADDR, EHSELECTION, and LSDAADDR ISD opcodes."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185600
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Wed, 3 Jul 2013 23:56:31 +0000 (23:56 +0000)]
Remove the EXCEPTIONADDR, EHSELECTION, and LSDAADDR ISD opcodes.
These exception-related opcodes are not used any longer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185596
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Wed, 3 Jul 2013 23:56:24 +0000 (23:56 +0000)]
Simplify landing pad lowering.
Stop using the ISD::EXCEPTIONADDR and ISD::EHSELECTION when lowering
landing pad arguments. These nodes were previously legalized into
CopyFromReg nodes, but that never worked properly because the
CopyFromReg node weren't guaranteed to be scheduled at the top of the
basic block.
This meant the exception pointer and selector registers could be
clobbered before being copied to a virtual register.
This patch copies the two physical registers to virtual registers at
the beginning of the basic block, and lowers the landingpad instruction
directly to two CopyFromReg nodes reading the *virtual* registers. This
is safe because virtual registers don't get clobbered.
A future patch will remove the ISD::EXCEPTIONADDR and ISD::EHSELECTION
nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185595
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Wed, 3 Jul 2013 23:56:20 +0000 (23:56 +0000)]
Add MachineBasicBlock::addLiveIn().
This function adds a live-in physical register to an MBB and ensures
that it is copied to a virtual register immediately.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185594
91177308-0d34-0410-b5e6-
96231b3b80d8
Stephen Lin [Wed, 3 Jul 2013 23:39:13 +0000 (23:39 +0000)]
Have ARMBaseRegisterInfo::getCallPreservedMask return the 'correct' mask for the GHC calling convention.
This is purely academic because GHC calls are always tail calls so the register mask will never be used; however, this change makes the code clearer and brings the ARM implementation of the GHC calling convention in line with the X86 implementation. Also, it might save someone else some time trying to figuring out what is happening...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185592
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 22:40:21 +0000 (22:40 +0000)]
Hoist all of the Entry.getLoc() calls int a single variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185589
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 22:40:18 +0000 (22:40 +0000)]
Make DotDebugLocEntry a class, reorder the members along with comments
for them and update all uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185588
91177308-0d34-0410-b5e6-
96231b3b80d8
Quentin Colombet [Wed, 3 Jul 2013 21:42:57 +0000 (21:42 +0000)]
[ARM] Improve the instruction selection of vector loads.
In the ARM back-end, build_vector nodes are lowered to a target specific
build_vector that uses floating point type.
This works well, unless the inserted bitcasts survive until instruction
selection. In that case, they incur moves between integer unit and floating
point unit that may result in inefficient code.
In other words, this conversion may introduce artificial dependencies when the
code leading to the build vector cannot be completed with a floating point type.
In particular, this happens when loads are not aligned.
Before this patch, in that case, the compiler generates general purpose loads
and creates the floating point vector from them, instead of directly using the
vector unit.
The patch uses a vector friendly sequence of code when the inserted bitcasts to
floating point survived DAGCombine.
This is done by a target specific DAGCombine that changes the target specific
build_vector into a sequence of insert_vector_elt that get rid of the bitcasts.
<rdar://problem/
14170854>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185587
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 21:37:03 +0000 (21:37 +0000)]
Elaborate on comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185586
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 21:23:59 +0000 (21:23 +0000)]
Add names to the header file since they help in documenting the API
(and for consistency).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185585
91177308-0d34-0410-b5e6-
96231b3b80d8
Bill Schmidt [Wed, 3 Jul 2013 21:03:35 +0000 (21:03 +0000)]
[PowerPC] FreeBSD does not require f128 in its data layout string.
Long double is 64 bits on FreeBSD PPC, so the f128 entry is superfluous.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185583
91177308-0d34-0410-b5e6-
96231b3b80d8
Renato Golin [Wed, 3 Jul 2013 20:56:33 +0000 (20:56 +0000)]
Add platform specific tests doc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185581
91177308-0d34-0410-b5e6-
96231b3b80d8
Tilmann Scheller [Wed, 3 Jul 2013 20:38:01 +0000 (20:38 +0000)]
ARM: Prevent ARMAsmParser::shouldOmitCCOutOperand() from misidentifying certain Thumb2 add immediate T3 encodings.
Before the fix Thumb2 instructions of type "add rD, rN, #imm" (T3 encoding, see ARM ARM A8.8.4) with rD and rN both being low registers (r0-r7) were classified as having the T4 encoding.
The T4 encoding doesn't have a cc_out operand so for above instructions the operand gets erroneously removed, corrupting the token stream and leading to parse errors later in the process.
This bug prevented "add r1, r7, #0xcbcbcbcb" from being assembled correctly.
Fixes <rdar://problem/
14224440>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185575
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 20:36:36 +0000 (20:36 +0000)]
Move typedefs inside the class that they belong to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185573
91177308-0d34-0410-b5e6-
96231b3b80d8
Chad Rosier [Wed, 3 Jul 2013 18:38:08 +0000 (18:38 +0000)]
Use an RWMutex instead of a Mutex in PassRegistry.
Patch by Alex Crichton <alex@crichton.co>. Approved by Chris Lattner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185566
91177308-0d34-0410-b5e6-
96231b3b80d8
Ulrich Weigand [Wed, 3 Jul 2013 18:29:47 +0000 (18:29 +0000)]
[PowerPC] Support lmw/stmw in the asm parser
This adds support for the load/store multiple instructions,
currently used by the asm parser only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185564
91177308-0d34-0410-b5e6-
96231b3b80d8
Ulrich Weigand [Wed, 3 Jul 2013 17:59:07 +0000 (17:59 +0000)]
[PowerPC] Use mtocrf when available
Just as with mfocrf, it is also preferable to use mtocrf instead of
mtcrf when only a single CR register is to be written.
Current code however always emits mtcrf. This probably does not matter
when using an external assembler, since the GNU assembler will in fact
automatically replace mtcrf with mtocrf when possible. It does create
inefficient code with the integrated assembler, however.
To fix this, this patch adds MTOCRF/MTOCRF8 instruction patterns and
uses those instead of MTCRF/MTCRF8 everything. Just as done in the
MFOCRF patch committed as 185556, these patterns will be converted
back to MTCRF if MTOCRF is not available on the machine.
As a side effect, this allows to modify the MTCRF pattern to accept
the full range of mask operands for the benefit of the asm parser.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185561
91177308-0d34-0410-b5e6-
96231b3b80d8
Ulrich Weigand [Wed, 3 Jul 2013 17:05:42 +0000 (17:05 +0000)]
[PowerPC] Always use mfocrf if available
When accessing just a single CR register, it is always preferable to
use mfocrf instead of mfcr, if the former is available on the CPU.
Current code makes that distinction in many, but not all places
where a single CR register value is retrieved. One missing
location is PPCRegisterInfo::lowerCRSpilling.
To fix this and make this simpler in the future, this patch changes
the bulk of the back-end to always assume mfocrf is available and
simply generate it when needed.
On machines that actually do not support mfocrf, the instruction
is replaced by mfcr at the very end, in EmitInstruction.
This has the additional benefit that we no longer need the
MFCRpseud hack, since before EmitInstruction we always have
a MFOCRF instruction pattern, which already models data flow
as required.
The patch also adds the MFOCRF8 version of the instruction,
which was missing so far.
Except for the PPCRegisterInfo::lowerCRSpilling case, no change
in generated code intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185556
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Wed, 3 Jul 2013 16:41:29 +0000 (16:41 +0000)]
Prefix failing commands with not to make clear they are expected to fail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185554
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Wed, 3 Jul 2013 16:35:26 +0000 (16:35 +0000)]
Remove another old test.
It was only passing because 'grep andpd' was not finding any andpd, but
we don't fail if part of a pipe fails.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185552
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Wed, 3 Jul 2013 16:30:01 +0000 (16:30 +0000)]
Remove test for the old EH system. It doesn't parse anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185551
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Wed, 3 Jul 2013 16:27:55 +0000 (16:27 +0000)]
Fix test: It was missing run lines and llvm-dis has no -disable-verify option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185550
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Wed, 3 Jul 2013 15:57:14 +0000 (15:57 +0000)]
Add support for gnu archives with a string table and no symtab.
While there, use early returns to reduce nesting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185547
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Wed, 3 Jul 2013 15:46:03 +0000 (15:46 +0000)]
Make llvm-nm return 1 on error.
This is a small compatibility improvement with gnu nm and makes llvm-nm more
useful as a testing tool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185546
91177308-0d34-0410-b5e6-
96231b3b80d8
Ulrich Weigand [Wed, 3 Jul 2013 15:13:30 +0000 (15:13 +0000)]
[PowerPC] Remove dead code from PPCDAGToDAGISel::SelectSETCC
The subroutine getCRIdxForSetCC has a parameter "Other" and comment:
If this returns with Other != -1, then the returned comparison
is an or of two simpler comparisons.
However for at least the last five years this routine has never
returned a value of Other != -1; these cases are now handled
differently to begin with.
This patch removes the parameter and the code in SelectSETCC that
attempted to handle the Other != -1 case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185541
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 3 Jul 2013 15:07:05 +0000 (15:07 +0000)]
Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185540
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 3 Jul 2013 14:48:37 +0000 (14:48 +0000)]
Fix regular expression used by 'make update' to only look for 'I' and '?' at the start of svn info results and to check for spaces after 'I' instead of just after '?'.
Previously it was able to match 'I' anywhere in the filenames of the svn info results instead of just files that where ignored or unknown to svn. This would cause 'make update' to infinitely recurse if a file was modified with I anywhere in its name since svn info would return a Path pointing to the llvm root for those files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185539
91177308-0d34-0410-b5e6-
96231b3b80d8
Evgeniy Stepanov [Wed, 3 Jul 2013 14:39:14 +0000 (14:39 +0000)]
[msan] Unpoison stack allocations and undef values in blacklisted functions.
This changes behavior of -msan-poison-stack=0 flag from not poisoning stack
allocations to actively unpoisoning them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185538
91177308-0d34-0410-b5e6-
96231b3b80d8
Ulrich Weigand [Wed, 3 Jul 2013 12:51:09 +0000 (12:51 +0000)]
[PowerPC] Make specialized AltiVec patterns isCodeGenOnly
A couple of AltiVec patterns are just specialized forms of the
generic instruction pattern, and should therefore be marked
isCodeGenOnly to avoid confusing the asm parser:
VCFSX_0, VCTUXS_0, VCFUX_0, VCTSXS_0, and V_SETALLONES.
Noticed by inspection of the generated PPCGenAsmMatcher.inc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185533
91177308-0d34-0410-b5e6-
96231b3b80d8
Ulrich Weigand [Wed, 3 Jul 2013 12:32:41 +0000 (12:32 +0000)]
[PowerPC] Support mtspr/mfspr in the asm parser
This adds support for the generic forms of mtspr/mfspr
for the asm parser. The compiler will continue to use
the specialized patters for mtlr etc. since those are
needed to correctly describe data flow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185532
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Sandiford [Wed, 3 Jul 2013 10:10:02 +0000 (10:10 +0000)]
[SystemZ] Fold more spills
Add a mapping from register-based <INSN>R instructions to the corresponding
memory-based <INSN>. Use it to cut down on the number of spill loads.
Some instructions extend their operands from smaller fields, so this
required a new TSFlags field to say how big the unextended operand is.
This optimisation doesn't trigger for C(G)R and CL(G)R because in practice
we always combine those instructions with a branch. Adding a test for every
other case probably seems excessive, but it did catch a missed optimisation
for DSGF (fixed in r185435).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185529
91177308-0d34-0410-b5e6-
96231b3b80d8
Mihai Popa [Wed, 3 Jul 2013 09:21:44 +0000 (09:21 +0000)]
This corrects the implementation of Thumb ADR instruction. There are three issues:
1. it should accept only 4-byte aligned addresses
2. the maximum offset should be 1020
3. it should be encoded with the offset scaled by two bits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185528
91177308-0d34-0410-b5e6-
96231b3b80d8
Tim Northover [Wed, 3 Jul 2013 09:20:36 +0000 (09:20 +0000)]
ARM: relax the atomic release barrier to "dmb ishst" on Swift
Swift cores implement store barriers that are stronger than the ARM
specification but weaker than general barriers. They are, in fact, just about
enough to provide the ordering needed for atomic operations with release
semantics.
This patch makes use of that quirk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185527
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Sandiford [Wed, 3 Jul 2013 09:19:58 +0000 (09:19 +0000)]
[SystemZ] Rename mapping table fields
Rename Function->DispKey and PairType->DispSize. I'd originally used
"Function" because I thought it might be useful for other InstMappings.
However, it turns out that having two very similar instructions with the
same Function makes it pretty useless for anything other than the displacement
size key. Other InstMappings will want the key to be defined for only one
instruction in the pair.
No behavioural change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185526
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Sandiford [Wed, 3 Jul 2013 09:11:00 +0000 (09:11 +0000)]
[SystemZ] Fix caller-allocated save slot FIXME
Get rid of some old code (and associated FIXME) for handling the
caller-allocated register save area. No behavioural change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185525
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 08:26:07 +0000 (08:26 +0000)]
Remove unused field.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185523
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 08:13:55 +0000 (08:13 +0000)]
Constify a few functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185520
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Osborne [Wed, 3 Jul 2013 07:49:03 +0000 (07:49 +0000)]
[XCore] Whitespace fixes, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185519
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Osborne [Wed, 3 Jul 2013 07:48:50 +0000 (07:48 +0000)]
[XCore] Add ISel pattern for LDWCP
Patch by Robert Lytton.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185518
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 3 Jul 2013 05:18:47 +0000 (05:18 +0000)]
Use SmallVectorImpl::const_iterator instead of SmallVector to avoid specifying the vector size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185514
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 3 Jul 2013 05:16:59 +0000 (05:16 +0000)]
Use SmallVectorImpl instead of SmallVector as method argument to avoid specifying vector size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185513
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 3 Jul 2013 05:11:49 +0000 (05:11 +0000)]
Use SmallVectorImpl instead of SmallVector for iterators and references to avoid specifying the vector size unnecessarily.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185512
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 05:01:24 +0000 (05:01 +0000)]
Use SmallVectorImpl::iterator/const_iterator instead of SmallVector
to avoid specifying the vector size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185511
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 3 Jul 2013 04:42:33 +0000 (04:42 +0000)]
Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185509
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 3 Jul 2013 04:40:27 +0000 (04:40 +0000)]
Introduce some typedefs for DenseMaps containing SmallVectors so the vector size doesn't have to repeated when creating iterators for the DenseMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185508
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 3 Jul 2013 04:30:58 +0000 (04:30 +0000)]
Return SmallVectorImpl& instead of SmallVector& in a couple places to avoid having to specify the vector size in multiple places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185507
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 3 Jul 2013 04:27:31 +0000 (04:27 +0000)]
Add a space between type and variable name. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185506
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 3 Jul 2013 04:24:43 +0000 (04:24 +0000)]
Use SmallVectorImpl& instead of SmallVector& to avoid needlessly respecifying the small vector size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185505
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 3 Jul 2013 04:17:25 +0000 (04:17 +0000)]
Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185504
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael Gottesman [Wed, 3 Jul 2013 04:15:22 +0000 (04:15 +0000)]
Change the gettimeofday test to only test on a posix platform.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185503
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael Gottesman [Wed, 3 Jul 2013 04:00:54 +0000 (04:00 +0000)]
Added support in FunctionAttrs for adding relevant function/argument attributes for the posix call gettimeofday.
This implies annotating it as nounwind and its arguments as nocapture. To be
conservative, we do not annotate the arguments with noalias since some platforms
do not have restrict on the declaration for gettimeofday.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185502
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael Gottesman [Wed, 3 Jul 2013 04:00:51 +0000 (04:00 +0000)]
Added posix function gettimeofday to LibFunc::Func for all platforms but Windows.
*NOTE* In a recent version of posix, they added the restrict keyword to the
arguments for this function. From some spelunking it seems that on some
platforms, the call has restrict on its arguments and others it does not. Thus I
left off the restrict keyword from the function prototype in the comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185501
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 02:23:53 +0000 (02:23 +0000)]
Avoid doing a lot of computation when we have multiple ranges and
avoid adding information for the debug_inlined section when it isn't
going to be emitted anyhow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185500
91177308-0d34-0410-b5e6-
96231b3b80d8
NAKAMURA Takumi [Wed, 3 Jul 2013 02:20:49 +0000 (02:20 +0000)]
SystemZInstrInfo.cpp: Tweak an assertion. [-Wunused-variable]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185499
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 01:57:28 +0000 (01:57 +0000)]
Move iterator to where it's used and update comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185498
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 01:57:26 +0000 (01:57 +0000)]
Move instance variable before experimental section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185497
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 01:57:23 +0000 (01:57 +0000)]
Fix typo to make grep for DW_AT_comp_dir work without case-insensitive
grep.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185496
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 01:57:20 +0000 (01:57 +0000)]
Remove unnecessary forward declare.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185495
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 01:22:29 +0000 (01:22 +0000)]
Add a helpful comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185492
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Wed, 3 Jul 2013 01:08:30 +0000 (01:08 +0000)]
addConstantValue, addConstantFPValue never returned anything but
true, so remove the return value and propagate accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185490
91177308-0d34-0410-b5e6-
96231b3b80d8