Commit Graph

79662 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen 8c139a5125 Clear kill flags before propagating a copy.
The live range of the source register may be extended when a redundant
copy is eliminated. Make sure any kill flags between the two copies are
cleared.

This fixes PR11765.

llvm-svn: 149069
2012-01-26 17:52:15 +00:00
Jim Grosbach c8f2b7877b Tidy up. Fix mismatched return types for error handling.
llvm-svn: 149062
2012-01-26 15:56:45 +00:00
Gabor Greif e0d58d36b2 comment tweaks
llvm-svn: 149060
2012-01-26 10:28:58 +00:00
James Molloy 6685c08e5f Add support for the R_ARM_TARGET1 relocation, which should be given to relocations applied to all C++ constructors and destructors.
This enables the linker to match concrete relocation types (absolute or relative) with whatever library or C++ support code is being linked against.

llvm-svn: 149057
2012-01-26 09:25:43 +00:00
Victor Umansky 5f29b0e57b Fix for the following bug in AVX codegen for double-to-int conversions:
.	"fptosi" and "fptoui" IR instructions are defined with round-to-zero rounding mode.
.	Currently for AVX mode for <4xdouble> and <8xdouble>  the "VCVTPD2DQ.128" and "VCVTPD2DQ.256" instructions are selected (for .fp_to_sint. DAG node operation ) by AVX codegen. However they use round-to-nearest-even rounding mode.
.	Consequently, the conversion produces incorrect numbers.
 
The fix is to replace selection of VCVTPD2DQ instructions with VCVTTPD2DQ instructions. The latter use truncate (i.e. round-to-zero) rounding mode. 
As .fp_to_sint. DAG node operation is used only for lowering of  "fptosi" and "fptoui" IR instructions, the fix in X86InstrSSE.td definition file doesn.t have an impact on other LLVM flows.
 
The patch includes changes in the .td file, LIT test for the changes and a fix in a legacy LIT test (which produced asm code conflicting with LLVN IR spec). 

llvm-svn: 149056
2012-01-26 08:51:39 +00:00
Craig Topper 86e44bc829 Add HasXOP predicate check covering a bunch of XOP intrinsic patterns.
llvm-svn: 149054
2012-01-26 07:51:55 +00:00
Craig Topper 1c0e22f57a Fix AVX vs SSE patterns ordering issue for VPCMPESTRM and VPCMPISTRM.
llvm-svn: 149053
2012-01-26 07:31:30 +00:00
Craig Topper b91760eff8 Remove some more patterns by custom lowering intrinsics to target specific nodes.
llvm-svn: 149052
2012-01-26 07:18:03 +00:00
Chris Lattner 34d9a17778 unbreak test/Bitcode/shuffle.ll.
llvm-svn: 149033
2012-01-26 03:10:45 +00:00
Chris Lattner 8722fe5a24 simplify by using ShuffleVectorInst::getMaskValue.
llvm-svn: 149029
2012-01-26 02:54:54 +00:00
Chris Lattner cf12970bd0 eliminate the Constant::getVectorElements method. There are better (and
more robust) ways to do what it was doing now.  Also, add static methods
for decoding a ShuffleVector mask.

llvm-svn: 149028
2012-01-26 02:51:13 +00:00
Chris Lattner fa77500d96 Continue improving support for ConstantDataAggregate, and use the
new methods recently added to (sometimes greatly!) simplify code.

llvm-svn: 149024
2012-01-26 02:32:04 +00:00
Chris Lattner f14a67f5d3 Add a ConstantDataVector::getSplatValue() method, for parity with
ConstantVector.  Fix some outright bugs in the implementation of
ConstantArray and Constant struct, which would cause us to not make
one big UndefValue when asking for an array/struct with all undef
elements.  Enhance Constant::isAllOnesValue to work with
ConstantDataVector.

llvm-svn: 149021
2012-01-26 02:31:22 +00:00
Peter Collingbourne 76e1c8c9ae llvm-config: Add support for CMake build trees in which the build
mode does not form part of the path.

llvm-svn: 149010
2012-01-26 01:31:38 +00:00
Chris Lattner 8326bd8e10 some general cleanup, using new methods and tidying up old code.
llvm-svn: 149006
2012-01-26 00:42:34 +00:00
Chris Lattner 3dbad40341 fix pasto in the new (and still unused) ShuffleVectorInst::getShuffleMask method.
llvm-svn: 149005
2012-01-26 00:41:50 +00:00
Chris Lattner 154aabc0c4 add StructType helpers too.
llvm-svn: 149000
2012-01-26 00:06:44 +00:00
Chris Lattner 40a279e1c5 Ok, break down and add some cast<>'ing helper methods to the Type class
to reduce the number of cast<>'s we have.  This allows someone to use
things like Ty->getVectorNumElements() instead of 
cast<VectorType>(Ty)->getNumElements() when you know that a type is a
vector.

It would be a great general cleanup to move the codebase to use these,
I will do so in the code I'm touching.

llvm-svn: 148999
2012-01-26 00:01:10 +00:00
Chris Lattner 1dcb654311 add some helper methods to ShuffleVectorInst and enhance its
"isValidOperands" and "getMaskValue" methods to allow 
ConstantDataSequential.

llvm-svn: 148998
2012-01-25 23:49:49 +00:00
Jakob Stoklund Olesen 4864a81aa3 Improve sub-register def handling in ProcessImplicitDefs.
This boils down to using MachineOperand::readsReg() more.

This fixes PR11829 where a use ended up after the first def when
lowering REG_SEQUENCE instructions involving IMPLICIT_DEFs.

llvm-svn: 148996
2012-01-25 23:36:27 +00:00
Anton Korobeynikov 7722a2d4e3 Properly emit ctors / dtors with priorities into desired sections
and let linker handle the rest.

This finally fixes PR5329

llvm-svn: 148990
2012-01-25 22:24:19 +00:00
Lang Hames f1508b78f9 Don't add live ranges for aliases of physregs that are live in to the
function. They don't appear to be used, and are inconsistent with handling of
other physreg intervals (i.e. intervals that are not live-in) where ranges are
not inserted for aliases.

llvm-svn: 148986
2012-01-25 22:11:06 +00:00
Jim Grosbach 65e2465550 Tidy up. s/Low Level Virtual Machine/LLVM/.
LLVM isn't an acronym anymore.

llvm-svn: 148985
2012-01-25 22:00:23 +00:00
Lang Hames 19feb5f241 Always break upon finding a vreg operand (in Release as well as +Asserts). Remove assertion which can no longer trigger.
llvm-svn: 148984
2012-01-25 21:53:23 +00:00
Jim Grosbach 82f76d1275 ARM assemly parsing and validation of IT instruction.
"Although a Thumb2 instruction, the IT mnemonic shall be permitted in
ARM mode, and the condition verified to match the condition code(s)
on the following instruction(s)."

PR11853

llvm-svn: 148969
2012-01-25 19:52:01 +00:00
Nick Lewycky 0e496cddf0 Use precomputed BB size instead of BB->size().
llvm-svn: 148964
2012-01-25 18:54:13 +00:00
Chris Lattner 33633a90a0 fix a bug I introduced in r148929, this is not a splat!
Thanks to Eli for noticing.

llvm-svn: 148947
2012-01-25 09:56:22 +00:00
Nick Lewycky 3c3feaf40c Gracefully degrade precision in branch probability numbers.
llvm-svn: 148946
2012-01-25 09:43:14 +00:00
Nick Lewycky 70d50ee8fb Support pointer comparisons against constants, when looking at the inline-cost
savings from a pointer argument becoming an alloca. Sometimes callees will even
compare a pointer to null and then branch to an otherwise unreachable block!
Detect these cases and compute the number of saved instructions, instead of
bailing out and reporting no savings.

llvm-svn: 148941
2012-01-25 08:27:40 +00:00
Chandler Carruth 44d69d9c25 Revert a tiny bit of r148553 which extended LLVM's function attributes
to 64-bits, and added a new attribute in bit . Specifically, remove
this new attribute from the enum used in the C API. It's not yet clear
what the best approach is for exposing these new attributes in the
C API, and several different proposals are on the table. Until then, we
can simply not expose this bit in the API at all.

Also, I've reverted a somewhat unrelated change in the same revision
which switched from "1 << 31" to "1U << 31" for the top enum. While "1
<< 31" is technically undefined behavior, implementations DTRT here.
However, MS and -pedantic mode warn about non-'int' type enumerator
values. If folks feel strongly about this I can put the 'U' back in, but
it seemed best to wait for the proper solution.

llvm-svn: 148937
2012-01-25 07:40:15 +00:00
Evan Cheng ef6a2ea216 Update hasProperty comment.
llvm-svn: 148936
2012-01-25 07:38:48 +00:00
Chris Lattner 6705883ad8 use Constant::getAggregateElement to simplify a bunch of code.
llvm-svn: 148934
2012-01-25 06:48:06 +00:00
Craig Topper 7834900950 Custom lower PSIGN and PSHUFB intrinsics to their corresponding target specific nodes so we can remove the isel patterns.
llvm-svn: 148933
2012-01-25 06:43:11 +00:00
Chris Lattner 7e683d10a8 constify some methods and add a new Constant::getAggregateElement
helper method for the common operation of extracting an element
out of a constant aggregate.

llvm-svn: 148931
2012-01-25 06:16:32 +00:00
Chris Lattner 47a86bdbe2 use ConstantVector::getSplat in a few places.
llvm-svn: 148929
2012-01-25 06:02:56 +00:00
Craig Topper ce4f9c5668 Custom lower phadd and phsub intrinsics to target specific nodes. Remove the patterns that are no longer necessary.
llvm-svn: 148927
2012-01-25 05:37:32 +00:00
Chris Lattner e9eed29b5b reapply r148901 with a crucial fix.
"Introduce a new ConstantVector::getSplat constructor function to 
simplify a really common case."

llvm-svn: 148924
2012-01-25 05:19:54 +00:00
Craig Topper 5bcf070e68 Remove AVX 256-bit unaligned load intrinsics. 128-bit versions had been removed a while ago.
llvm-svn: 148922
2012-01-25 04:42:03 +00:00
Akira Hatanaka 012f041bce Mark 64-bit register RA_64 unused too.
llvm-svn: 148918
2012-01-25 04:19:22 +00:00
Akira Hatanaka 01d3c42f90 Modify MipsFrameLowering::emitPrologue and emitEpilogue.
- Use MipsAnalyzeImmediate to expand immediates that do not fit in 16-bit.
- Change the types of variables so that they are sufficiently large to handle
  64-bit pointers.
- Emit instructions to set register $28 in a function prologue after
  instructions which store callee-saved registers have been emitted. 
 

llvm-svn: 148917
2012-01-25 04:12:04 +00:00
Akira Hatanaka d1d4b3efcf Modify MipsRegisterInfo::eliminateFrameIndex to use MipsAnalyzeImmediate to
expand offsets that do not fit in the 16-bit immediate field of load and store
instructions. Also change the types of variables so that they are sufficiently
large to handle 64-bit pointers.

llvm-svn: 148916
2012-01-25 03:55:10 +00:00
Craig Topper 3ad5bc019a Merge intrinsic pattern and no pattern versions of VCVTSD2SI intruction definitions. Matches non-AVX version of same instructions.
llvm-svn: 148914
2012-01-25 03:52:09 +00:00
Rafael Espindola f47efbc07d -fvisibility-inlines-hidden is a c++ only option.
Thanks to Peter Collingbourne for noticing it.

llvm-svn: 148913
2012-01-25 03:39:26 +00:00
NAKAMURA Takumi 6c421ea484 MipsAnalyzeImmediate.h: Fix to add DataTypes.h for msvc.
inttypes.h is not supplied in msvc.

llvm-svn: 148912
2012-01-25 03:34:41 +00:00
Nick Lewycky ff50962534 Fix assert("msg"). Fix unused-variable warnings complaining about VT used only
in asserts.

llvm-svn: 148910
2012-01-25 03:20:12 +00:00
NAKAMURA Takumi 96a21dcea3 Target/Mips: Unbreak CMake build.
llvm-svn: 148909
2012-01-25 03:15:46 +00:00
Akira Hatanaka 86d5fadd57 Lower 64-bit immediates using MipsAnalyzeImmediate that has just been added.
Add a test case to show fewer instructions are needed to load an immediate
with the new way of loading immediates.

llvm-svn: 148908
2012-01-25 03:01:35 +00:00
Argyrios Kyrtzidis 939b7a0b7c Revert r148901 because it crashes llvm tests.
Original log:
    Introduce a new ConstantVector::getSplat constructor function to
    simplify a really common case.

llvm-svn: 148906
2012-01-25 02:42:41 +00:00
Chris Lattner 9fe7dd872b Introduce a new ConstantVector::getSplat constructor function to
simplify a really common case.

llvm-svn: 148901
2012-01-25 01:53:58 +00:00
Akira Hatanaka ff36fd3de3 Add class MipsAnalyzeImmediate which comes up with an instruction sequence to
load an immediate. 

llvm-svn: 148900
2012-01-25 01:43:36 +00:00