Commit Graph

86370 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
ad0b3b21e3 Generate a table-driven version of TRI::composeSubRegIndices().
Explicitly allow composition of null sub-register indices, and handle
that common case in an inlinable stub.

Use a compressed table implementation instead of the previous nested
switches which generated pretty bad code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167190 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-01 00:32:10 +00:00
Andrew Kaylor
3037a58a21 Fixed format strings to avoid pointer truncation during 64-bit debugging.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167185 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-01 00:17:11 +00:00
Jim Grosbach
7dd4dc8892 MC: Simple example parser for MC assembly markup.
Nothing fancy, just a simple demonstration parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167181 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 23:24:13 +00:00
Shuxin Yang
a5526a9bff (For X86) Enhancement to add-carray/sub-borrow (adc/sbb) optimization.
The adc/sbb optimization is to able to convert following expression
into a single adc/sbb instruction:
  (ult) ... = x + 1 // where the ult is unsigned-less-than comparison
  (ult) ... = x - 1

  This change is to flip the "x >u y" (i.e. ugt comparison) in order 
to expose the adc/sbb opportunity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167180 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 23:11:48 +00:00
Nadav Rotem
e57b2cbce6 LoopVectorize: Preserve NSW, NUW and IsExact flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167174 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 21:40:39 +00:00
Nadav Rotem
0dba9a9a26 Fix a bug in the cost calculation of vector casts. Detect situations where bitcasts cost zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167170 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 20:52:26 +00:00
Andrew Kaylor
2932284f04 Mark code, not data, as executable in lli RemoteTarget simulator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167164 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 20:37:14 +00:00
Rafael Espindola
6d42bbfe5e Remove Triple::getArchTypeForDarwinArchName. I lives on the clang driver now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167157 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 18:52:25 +00:00
Akira Hatanaka
497204a94b [mips] Set isAsCheapAsAMove flag on ADDiu and DADDiu, which enables
re-materialization of immediate loads.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167153 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 18:37:55 +00:00
Amara Emerson
b586aae15e MCJIT unit test: add calls to ensure that instruction caches are properly invalidated before code execution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167146 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 17:44:16 +00:00
Amara Emerson
a25ad19a23 Port lli bug fix from r166920 to MCJIT unit test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167145 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 17:41:51 +00:00
Amara Emerson
9f74bc9e77 Commit access test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167144 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 17:35:12 +00:00
Arnold Schwaighofer
03b4f06553 Remove stale documentation about tail duplicaton IR pass
We no longer have a tail duplication pass that runs on LLVM IR. It was removed
in 3.0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167140 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 17:25:31 +00:00
Akira Hatanaka
39fa606992 Test case for r167039. Check that tail-call optimization is disabled for
mips16.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167139 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 17:25:23 +00:00
Eli Bendersky
97d6abee58 Fix typo in CodeGenerator doc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167137 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 16:41:07 +00:00
Benjamin Kramer
ccd492c9d6 LCSSA: Try to recover compile time regressions due to SCEV updates.
- Use value handle tricks to communicate use replacements instead of forgetLoop, this is a lot faster.
- Move the "big hammer" out of the main loop so it's not called for every instruction.

This should recover most (if not all) compile time regressions introduced by this code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167136 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 16:30:03 +00:00
Nadav Rotem
4c1b4b1fe7 Put the threshold magic number in a variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167134 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 16:22:16 +00:00
Ulrich Weigand
f772f07802 Disable all old-JIT unit tests on PowerPC.
These tests were all failing since the old JIT doesn't work
for PowerPC (any more), and there are no plans to attempt to
fix it again (instead, work focuses on MCJIT).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167133 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 16:18:02 +00:00
Hans Wennborg
eb3e089fb6 Remove fixme about unreachable cases from SwitchToLookupTable
SimplifyCFG will have removed those cases for us.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167132 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 16:15:25 +00:00
Nadav Rotem
2a5401cc75 Remove enum values since they are not used anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167131 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 16:14:06 +00:00
Hans Wennborg
daf4cfc8d8 Address Duncan's comments on r167121.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167130 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 15:31:09 +00:00
Hal Finkel
72465ea23d BBVectorize: Choose pair ordering to minimize shuffles
BBVectorize would, except for loads and stores, always fuse instructions
so that the first instruction (in the current source order) would always
represent the low part of the input vectors and the second instruction
would always represent the high part. This lead to too many shuffles
being produced because sometimes the opposite order produces fewer of them.

With this change, BBVectorize tracks the kind of pair connections that form
the DAG of candidate pairs, and uses that information to reorder the pairs to
avoid excess shuffles. Using this information, a future commit will be able
to add VTTI-based shuffle costs to the pair selection procedure. Importantly,
the number of remaining shuffles can now be estimated during pair selection.

There are some trivial instruction reorderings in the test cases, and one
simple additional test where we certainly want to do a reordering to
avoid an unnecessary shuffle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167122 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 15:17:07 +00:00
Hans Wennborg
ef026f1b5e Address Duncan's comments on r167115
- Use 0 instead of NULL
 - Helper function for "dyn_cast, else lookup in the constant pool".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167121 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 15:14:39 +00:00
Meador Inge
e0f1dca1c8 instcombine: Migrate strto* optimizations
This patch migrates the strto* optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167119 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 14:58:26 +00:00
Hans Wennborg
2857866138 Fix false -> NULL conversion from r167115 spotted by Benjamin Kramer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167117 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 14:36:48 +00:00
Benjamin Kramer
b4c9d9c51f Replace some instances of UniqueVector with SetVector, which is slightly cheaper.
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167116 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 13:45:49 +00:00
Hans Wennborg
e03d9e4ec7 Do simple constant propagation in lookup table formation for switches
By propagating the value for the switch condition, LLVM can now build
lookup tables for code such as:

  switch (x) {
    case 1: return 5;
    case 2: return 42;
    case 3: case 4: case 5:
      return x - 123;
    default:
      return 123;
  }

Given that x is known for each case, "x - 123" becomes a constant for
cases 3, 4, and 5.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167115 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 13:42:45 +00:00
Benjamin Kramer
e803d05bd8 Fix a couple of comment typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167113 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 11:25:32 +00:00
Benjamin Kramer
4ad3d981b9 LCSSA: Add a workaround for another nasty SCEV cache invalidation issue.
I'm not entirely happy with this solution, but I don't see a smarter way currently.
Fixes PR14214.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167112 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 10:01:29 +00:00
Evgeniy Stepanov
0ceb855d52 Add IRBuilderBase::getIntPtrTy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167111 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 09:50:01 +00:00
Benjamin Kramer
061938b90b DependenceAnalysis: Don't crash if there is no constant operand.
This makes the code match the comments. Resolves a crash in loop idiom (PR14219).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167110 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 09:20:38 +00:00
James Molloy
296815dcce Add support for ARM segment types PT_ARM_ARCHEXT, PT_ARM_EXIDX and PT_ARM_UNWIND.
Patch by Pete Chou!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167109 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 09:10:56 +00:00
James Molloy
552e731601 Add support for Cortex-A15 host recognition.
No testcase, as this is only testable on a C-A15 board.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167108 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 09:07:37 +00:00
Reed Kotler
9441125d63 Implement ADJCALLSTACKUP and ADJCALLSTACKDOWN
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167107 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 05:21:10 +00:00
Craig Topper
b5bc8d0009 Add scalar forms of FMA4 VFNMSUB/VFNMADD to folding tables. Patch from Cameron McInally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167106 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 04:59:46 +00:00
Meador Inge
08684d1f06 instcombine: Migrate strpbrk optimizations
This patch migrates the strpbrk optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167105 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 04:29:58 +00:00
Michael Liao
c5c970ee85 Clean up redundant SP register maintained in X86 TLI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167104 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 04:14:09 +00:00
Meador Inge
57cfd71f88 instcombine: Migrate strlen optimizations
This patch migrates the strlen optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167103 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 03:33:06 +00:00
Meador Inge
a0885fb882 instcombine: Migrate strncpy optimizations
This patch migrates the strncpy optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167102 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 03:33:00 +00:00
Nadav Rotem
5b2c4dc5f8 LoopVectorize: Do not vectorize loops with tiny constant trip counts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167101 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 03:31:07 +00:00
Bill Schmidt
42d43351b2 This patch addresses an ABI compatibility issue with empty aggregate
parameters.  Examples of these are:

  struct { } a;
  union { } b[256];
  int a[0];

An empty aggregate has an address, although dereferencing that address is
pointless.  When passed as a parameter, an empty aggregate does not consume
a protocol register, nor does it consume a doubleword in the parameter save
area.  Passing an empty aggregate by reference passes an address just as
for any other aggregate.  Returning an empty aggregate uses GPR3 as a hidden
address of the return value location, just as for any other aggregate.

The patch modifies PPCTargetLowering::LowerFormalArguments_64SVR4 and
PPCTargetLowering::LowerCall_64SVR4 to properly skip empty aggregate
parameters passed by value.  The handling of return values and by-reference
parameters was already correct.

Built on powerpc64-unknown-linux-gnu and tested with no new regressions.
A test case is included to test proper handling of empty aggregate
parameters on both sides of the function call protocol.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167090 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 01:15:05 +00:00
Akira Hatanaka
bab24216cc Change signature of function RAFast::spillAll to avoid conversion between
type MachineInstr* and MachineBasicBlock::iterator.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167088 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 00:56:01 +00:00
Rafael Espindola
52d053238a xlc supports __attribute__((aligned(x))), use it.
Patch by Kai.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167087 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 00:54:26 +00:00
Akira Hatanaka
dc6d846df5 Check that iterator I is not the end iterator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167086 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 00:50:52 +00:00
Rafael Espindola
3a9b71434c Add extra declarations of hash_value needed to build llvm with xlc 12.1.
Patch by Kai!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167085 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 00:46:18 +00:00
Nadav Rotem
462d1ca428 Add support for loops that don't start with Zero.
This is important for loops in the LAPACK test-suite.
These loops start at 1 because they are auto-converted from fortran.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167084 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 00:45:26 +00:00
Meador Inge
e6d781fd3c instcombine: Migrate stpcpy optimizations
This patch migrates the stpcpy optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.  Note that the
__stpcpy_chk simplifications were migrated in a previous commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167083 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 00:20:56 +00:00
Meador Inge
fa9d1372c9 instcombine: Split out the __stpcpy_chk simplifications from StrCpyChkOpt
r166198 migrated the strcpy optimization to instcombine.  The strcpy
simplifier that was migrated from Transforms/Scalar/SimplifyLibCalls.cpp
was also doing some __strcpy_chk simplifications.  Those fortified
simplifications were migrated as well, but introduced a bug in the
__stpcpy_chk simplifier in the process.  This happened because the
__strcpy_chk and __stpcpy_chk simplifiers were both mapped to StrCpyChkOpt
which was updated with simplifications that worked for __strcpy_chk, but
not __stpcpy_chk.

This patch fixes the problem by adding proper test coverage and creating a
new simplifier for __stpcpy_chk (instead of sharing one with __strcpy_chk).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167082 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 00:20:51 +00:00
Manman Ren
dfd0b9b460 X86 SSE: update rsqrtss and rcpss to use two source operands and
the first source operand is tied to the destination operand.

This is to accurately model the corresponding instructions where the upper
bits are unmodified.

rdar://12558838
PR14221


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167064 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-30 23:53:59 +00:00
Eli Friedman
bbc6e671b1 Fix regression in old-style JIT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167057 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-30 22:21:55 +00:00