Commit Graph

83412 Commits

Author SHA1 Message Date
Manman Ren
1f7a1b68a0 X86: add GATHER intrinsics (AVX2) in LLVM
Support the following intrinsics:
llvm.x86.avx2.gather.d.pd, llvm.x86.avx2.gather.q.pd
llvm.x86.avx2.gather.d.pd.256, llvm.x86.avx2.gather.q.pd.256
llvm.x86.avx2.gather.d.ps, llvm.x86.avx2.gather.q.ps
llvm.x86.avx2.gather.d.ps.256, llvm.x86.avx2.gather.q.ps.256

Modified Disassembler to handle VSIB addressing mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159221 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 19:47:59 +00:00
Tim Northover
ca578e7ba6 Teach TableGen to put chains on more instructions
When generating selection tables for Pat instances, TableGen relied on
an output Instruction's Pattern field being set to infer whether a
chain should be added.

This patch adds additional logic to check various flag fields so that
correct code can be generated even if Pattern is unset.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159217 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 18:46:28 +00:00
Argyrios Kyrtzidis
da72dd2a01 Fix ThreadLocalImpl::getInstance for --disable-threads.
PR13114.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159210 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 17:13:58 +00:00
Jakob Stoklund Olesen
34f5a2b596 Allow targets to inject passes before the virtual register rewriter.
Such passes can be used to tweak the register assignments in a
target-dependent way, for example to avoid write-after-write
dependencies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159209 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 17:09:29 +00:00
Stepan Dyatkovskiy
0e20eb496e IntegersSubsetTest: Due to compilation failure with -std=c11, replaced -1UL with NOT_A_NUMBER constant (0xffff).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159207 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 16:08:20 +00:00
Jack Carter
0518fca843 There are a number of generic inline asm operand modifiers that
up to r158925 were handled as processor specific. Making them 
generic and putting tests for these modifiers in the CodeGen/Generic
directory caused a number of targets to fail. 

This commit addresses that problem by having the targets call 
the generic routine for generic modifiers that they don't currently
have explicit code for.

For now only generic print operands 'c' and 'n' are supported.vi


Affected files:

    test/CodeGen/Generic/asm-large-immediate.ll
    lib/Target/PowerPC/PPCAsmPrinter.cpp
    lib/Target/NVPTX/NVPTXAsmPrinter.cpp
    lib/Target/ARM/ARMAsmPrinter.cpp
    lib/Target/XCore/XCoreAsmPrinter.cpp
    lib/Target/X86/X86AsmPrinter.cpp
    lib/Target/Hexagon/HexagonAsmPrinter.cpp
    lib/Target/CellSPU/SPUAsmPrinter.cpp
    lib/Target/Sparc/SparcAsmPrinter.cpp
    lib/Target/MBlaze/MBlazeAsmPrinter.cpp
    lib/Target/Mips/MipsAsmPrinter.cpp
    
MSP430 isn't represented because it did not even run with
the long existing 'c' modifier and it was not apparent what
needs to be done to get it inline asm ready.

Contributer: Jack Carter



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159203 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 13:49:27 +00:00
Duncan Sands
91fa1da2f7 Replacing zero-sized alloca's with a null pointer is too aggressive, instead
merge all zero-sized alloca's into one, fixing c43204g from the Ada ACATS
conformance testsuite.  What happened there was that a variable sized object
was being allocated on the stack, "alloca i8, i32 %size".  It was then being
passed to another function, which tested that the address was not null (raising
an exception if it was) then manipulated %size bytes in it (load and/or store).
The optimizers cleverly managed to deduce that %size was zero (congratulations
to them, as it isn't at all obvious), which made the alloca zero size, causing
the optimizers to replace it with null, which then caused the check mentioned
above to fail, and the exception to be raised, wrongly.  Note that no loads
and stores were actually being done to the alloca (the loop that does them is
executed %size times, i.e. is not executed), only the not-null address check.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159202 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 13:39:21 +00:00
Stepan Dyatkovskiy
b787d41959 IntegersSubsetMapping: implemented "diff" operation. Operation allows at the same time perform up to three operations:
- LHS exclude RHS
- LHS intersect RHS (LHS successors will keeped)
- RHS exclude LHS
The complexity is N+M, where
  N is size of LHS
  M is size of RHS.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159201 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 11:57:43 +00:00
Stepan Dyatkovskiy
0f7a7bcd48 IntegersSubsetMapping: removed exclude operation, it will replaced with more universal "diff" operation in next commit.
Changes was separated onto two commits for better readability.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159200 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 11:41:47 +00:00
Bill Wendling
d372ee265d Sphyinxify the Bugpoint document.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159199 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 11:37:00 +00:00
Elena Demikhovsky
fcb0946833 Removed unused variable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159197 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 10:50:07 +00:00
Bill Wendling
a44489d5b5 Rename to match other X86_64* names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159196 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 10:05:06 +00:00
Elena Demikhovsky
1596373671 Shuffle optimization for AVX/AVX2.
The current patch optimizes frequently used shuffle patterns and gives these instruction sequence reduction.
Before:
      vshufps $-35, %xmm1, %xmm0, %xmm2 ## xmm2 = xmm0[1,3],xmm1[1,3]
       vpermilps       $-40, %xmm2, %xmm2 ## xmm2 = xmm2[0,2,1,3]
       vextractf128    $1, %ymm1, %xmm1
       vextractf128    $1, %ymm0, %xmm0
       vshufps $-35, %xmm1, %xmm0, %xmm0 ## xmm0 = xmm0[1,3],xmm1[1,3]
       vpermilps       $-40, %xmm0, %xmm0 ## xmm0 = xmm0[0,2,1,3]
       vinsertf128     $1, %xmm0, %ymm2, %ymm0
After:
      vshufps $13, %ymm0, %ymm1, %ymm1 ## ymm1 = ymm1[1,3],ymm0[0,0],ymm1[5,7],ymm0[4,4]
      vshufps $13, %ymm0, %ymm0, %ymm0 ## ymm0 = ymm0[1,3,0,0,5,7,4,4]
      vunpcklps       %ymm1, %ymm0, %ymm0 ## ymm0 = ymm0[0],ymm1[0],ymm0[1],ymm1[1],ymm0[4],ymm1[4],ymm0[5],ymm1[5]



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159188 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 08:04:10 +00:00
Chandler Carruth
c04f816afd Update a bunch of stale comments that dated from when this folled the
very first (and worst) placement algorithm. These should now more
accurately reflect the reality of the pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159185 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 05:16:37 +00:00
Craig Topper
952caee4f6 Remove some duplicate instructions that exist only to given different mnemonics for the assembler. Use InstAlias instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159184 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 04:12:49 +00:00
Andrew Trick
c9b1e25493 Enable the new LoopInfo algorithm by default.
The primary advantage is that loop optimizations will be applied in a
stable order. This helps debugging and unit test creation. It is also
a better overall implementation without pathologically bad performance
on deep functions.

On large functions (llvm-stress --size=200000 | opt -loops)
Before: 0.1263s
After:  0.0225s

On deep functions (after tweaking llvm-stress, thanks Nadav):
Before: 0.2281s
After:  0.0227s

See r158790 for more comments.

The loop tree is now consistently generated in forward order, but loop
passes are applied in reverse order over the program. If we have a
loop optimization that prefers forward order, that can easily be
achieved by adding a different type of LoopPassManager.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159183 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 04:11:38 +00:00
Andrew Trick
5ac3f96c0e Remove unnecessary FIXME
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159182 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 04:11:34 +00:00
Evan Cheng
16436dffb5 Make sure type is not extended or untyped before create a constant of the type. No test case. Found by inspection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159179 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 01:19:33 +00:00
Eric Christopher
db1714eb41 Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159178 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 00:28:15 +00:00
Eli Friedman
52d418df5d Make some ugly hacks for inline asm operands which name a specific register a bit more thorough. PR13196.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159176 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 23:42:33 +00:00
Nuno Lopes
fd99cabdc6 revert my previous commit (r159173), since as Eli pointed out, it's perfectly ok to mark realloc as noalias
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159175 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 23:26:10 +00:00
Nuno Lopes
a88d0edb49 do not set realloc() as NotAlias, since it can return the same pointer. This whole thing should be upgraded to use the MemoryBuiltin interface anyway..
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159173 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 22:55:50 +00:00
Manman Ren
540cda34b0 ARM: update peephole optimization.
More condition codes are included when deciding whether to remove cmp after
a sub instruction. Specifically, we extend from GE|LT|GT|LE to 
GE|LT|GT|LE|HS|LS|HI|LO|EQ|NE. If we have "sub a, b; cmp b, a; movhs", we
should be able to replace with "sub a, b; movls".

rdar: 11725965


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159166 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 21:49:38 +00:00
Owen Anderson
2c5fbb9bcb Define DAGOperand, an empty base class for RegisterClass and Operand. This allows one to write multiclasses that are polymorphic over both registers and non-register operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159162 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 21:25:16 +00:00
Dan Gohman
58fb3401fa Fix the objc_autoreleasedReturnValue optimization code to locate
the call correctly even in the case where it is an invoke. This
fixes rdar://11714057.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159157 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 19:47:37 +00:00
Jakob Stoklund Olesen
a4e6397fd9 Enforce stricter liveness rules for PHIs.
Verify that all paths from the entry block to a virtual register read
pass through a def. Enable this check even when MRI->isSSA() is false.

Verify that the live range of a virtual register is live out of all
predecessor blocks, even for PHI-values.

This requires that PHIElimination sometimes inserts IMPLICIT_DEF
instruction in predecessor blocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159150 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 18:18:27 +00:00
Jakob Stoklund Olesen
5984d2b31f Run ProcessImplicitDefs on SSA form where it can be much simpler.
Implicitly defined virtual registers can simply have the <undef> bit set
on all uses, and copies can be turned into implicit defs recursively.

Physical registers are a bit trickier. We handle the common case where a
physreg def is used by a nearby instruction in the same basic block. For
more complicated cases, just leave the IMPLICIT_DEF instruction in.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159149 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 18:12:18 +00:00
Nuno Lopes
3769fe149b improve optimization of invoke instructions:
- simplifycfg:  invoke undef/null -> unreachable
 - instcombine:  invoke new  -> invoke expect(0, 0)  (an arbitrary NOOP intrinsic;  only done if the allocated memory is unused, of course)
 - verifier:  allow invoke of intrinsics  (to make the previous step work)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159146 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 17:11:47 +00:00
Nuno Lopes
e8742d084c check for the NoAlias attribute through CallSite
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159145 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 16:17:54 +00:00
Nuno Lopes
986da6c3fd add CallSite/CallInst/InvokeInst::hasFnAttr()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159144 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 16:16:58 +00:00
Meador Inge
b935cd1514 PR13013: ELF Type identification fails for MSB type ELF files.
Fix 'sys::IdentifyFileType' to work with big and little endian byte orderings
when reading the ELF object file type.

Initial patch by Stefan Hepp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159138 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 14:48:43 +00:00
Rafael Espindola
a0706a9ff4 If a constant or a function has linkonce_odr linkage and unnamed_addr, mark it
hidden. Being linkonce_odr guarantees that it is available in every dso that
needs it. Being a constant/function with unnamed_addr guarantees that the
copies don't have to be merged.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159136 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 14:30:31 +00:00
Eli Bendersky
ccaddf4708 The name (and comment describing) of llvm::GetFirstDebuigLocInBasicBlock no longer represents what the function does. Therefore, the function is removed and its functionality is folded into the only place in the code-base where it was being used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159133 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 10:13:14 +00:00
Craig Topper
fd1753bedb Add SSE2 predicate to CVTPS2PD instructions. Doesn't matter much because there are no patterns in the instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159127 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 06:51:42 +00:00
Craig Topper
13d89c7976 Remove codegen only instruction in favor of one that has the same definition. Make some pattern operands more explicit about types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159126 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 06:16:00 +00:00
Chandler Carruth
6656afb31a Just remove generic support for C++11 alignas -- GCC is already
advertising complete support w/o alignas implemented, and its
implementation of alignas in the latest versions is so convoluted as to
be unusable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159125 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 05:20:13 +00:00
Jakob Stoklund Olesen
5213750e27 Teach PHIElimination to handle <undef> operands.
When a PHI use is <undef>, don't emit a copy in the predecessor block,
but insert an IMPLICIT_DEF instruction instead. This ensures that
virtual register uses are always jointly dominated by defs, even if some
of them are IMPLICIT_DEF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159121 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 03:36:12 +00:00
Jakob Stoklund Olesen
351c8818f2 Handle <undef> operands in TwoAddressInstructionPass.
When the source register to a 2-addr instruction is undefined, there is
no need to attempt any transformations - simply replace the source
register with the destination register.

This also comes up when lowering IMPLICIT_DEF instructions - make sure
the <undef> flag is moved to the new partial register def operand:

  %vreg8<def> = INSERT_SUBREG %vreg9<undef>, %vreg0<kill>, sub_16bit
rewrite undef:
  %vreg8<def> = INSERT_SUBREG %vreg8<undef>, %vreg0<kill>, sub_16bit
convert to:
  %vreg8:sub_16bit<def,read-undef> = COPY %vreg0<kill>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159120 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 03:27:12 +00:00
Jakob Stoklund Olesen
82d58b147f %RCX is not a function live-out in eh.return functions.
The function live-out registers must be live at all function returns,
and %RCX is only used by eh.return. When a function also has a normal
return, only %RAX holds a return value.

This fixes PR13188.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159116 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 15:53:01 +00:00
NAKAMURA Takumi
d5c407d2d0 llvm/lib: [CMake] Add explicit dependency to intrinsics_gen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159112 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 13:32:01 +00:00
Hal Finkel
768edf3cd0 Allow controlling vectorization of boolean values separately from other integer types.
These are used as the result of comparisons, and often handled differently from larger integer types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159111 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 13:28:01 +00:00
Nick Lewycky
edb5842b7c Remove dyn_cast + dereference pattern by replacing it with a cast and changing
the safety check to look for the same type we're going to actually cast to.
Fixes PR13180!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159110 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 10:15:42 +00:00
Craig Topper
e7f702fc2d Remove intrinsic specific instructions for (V)CVTPS2DQ and replace with patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159109 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 07:07:16 +00:00
Craig Topper
2123b18247 Remove intrinsic specific instructions for (V)CVTPS2DQ and replace with patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159108 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 06:55:37 +00:00
Craig Topper
081f931077 Fix build failures from r159106.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159107 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 06:08:31 +00:00
Craig Topper
66a69fa729 Remove intrinsic specific instructions for CVTPD2PS and replace with just patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159106 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 05:44:31 +00:00
Craig Topper
7f2ea14c68 Remove intrinsic specific instructions for CVTPD2DQ. Replace with patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159105 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 05:33:24 +00:00
Nick Lewycky
3eab3c4d40 Tab to spaces. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159104 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 04:07:14 +00:00
NAKAMURA Takumi
33f2139585 llvm/lib/Support/Errno.cpp: [Win32] Fix usage of strerror_s().
FYI, two arguments of strerror_s() is provided in C++ on msvc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159103 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 03:51:04 +00:00
NAKAMURA Takumi
b253451b82 LLVMProcessSources.cmake: [MSVC] Don't add "PROPERTIES HEADER_FILE_ONLY" to *.def.
FIXME: Shall we put *.def(s) to the folder?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159102 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 03:50:58 +00:00