Commit Graph

83933 Commits

Author SHA1 Message Date
Manman Ren ba8122cc25 X86 Peephole: fold loads to the source register operand if possible.
Add more comments and use early returns to reduce nesting in isLoadFoldable.
Also disable folding for V_SET0 to avoid introducing a const pool entry and
a const pool load.

rdar://10554090 and rdar://11873276

llvm-svn: 161207
2012-08-02 19:37:32 +00:00
Michael J. Spencer 152a3735ce [yaml2obj] Fix build. Apparently I've gotten too familiar with C++11.
llvm-svn: 161206
2012-08-02 19:36:30 +00:00
Michael J. Spencer 1ffd9de4f1 Add yaml2obj. A utility to convert YAML to binaries.
yaml2obj takes a textual description of an object file in YAML format
and outputs the binary equivalent. This greatly simplifies writing
tests that take binary object files as input.

llvm-svn: 161205
2012-08-02 19:16:56 +00:00
Jim Grosbach bc5b61c74d TableGen: Allow use of #NAME# outside of 'def' names.
Previously, def NAME values were only populated, and references to NAME
resolved, when NAME was referenced in the 'def' entry of the multiclass
sub-entry. e.g.,
multiclass foo<...> {
  def prefix_#NAME : ...
}

It's useful, however, to be able to reference NAME even when the default
def name is used. For example, when a multiclass has 'def : Pat<...>'
or 'def : InstAlias<...>' entries which refer to earlier instruction
definitions in the same multiclass. e.g.,
multiclass myMulti<RegisterClass rc> {
  def _r : myI<(outs rc:$d), (ins rc:$r), "r $d, $r", []>;

  def : InstAlias<\"wilma $r\", (!cast<Instruction>(NAME#\"_r\") rc:$r, rc:$r)>;
}

llvm-svn: 161198
2012-08-02 18:46:42 +00:00
Jakob Stoklund Olesen 5d30630e22 Compute the critical path length through a trace.
Whenever both instruction depths and instruction heights are known in a
block, it is possible to compute the length of the critical path as
max(depth+height) over the instructions in the block.

The stored live-in lists make it possible to accurately compute the
length of a critical path that bypasses the current (small) block.

llvm-svn: 161197
2012-08-02 18:45:54 +00:00
Akira Hatanaka fab8929459 Move the code that creates instances of MipsInstrInfo and MipsFrameLowering out
of MipsTargetMachine.cpp.

llvm-svn: 161191
2012-08-02 18:21:47 +00:00
Akira Hatanaka fffad897f2 Set transient stack alignment in constructor of MipsFrameLowering and re-enable
test o32_cc_vararg.ll.

llvm-svn: 161189
2012-08-02 18:15:13 +00:00
Jakob Stoklund Olesen 637c467528 Verify regunit intervals along with virtreg intervals.
Don't cause regunit intervals to be computed just to verify them. Only
check the already cached intervals.

llvm-svn: 161183
2012-08-02 16:36:50 +00:00
Jakob Stoklund Olesen 374071dde2 Avoid creating dangling physreg live ranges during DCE.
LiveRangeEdit::eliminateDeadDefs() can delete a dead instruction that
reads unreserved physregs. This would leave the corresponding regunit
live interval dangling because we don't have shrinkToUses() for physical
registers.

Fix this problem by turning the instruction into a KILL instead of
deleting it. This happens in a landing pad in
test/CodeGen/X86/2012-05-19-CoalescerCrash.ll:

  %vreg27<def,dead> = COPY %EDX<kill>; GR32:%vreg27

becomes:

  KILL %EDX<kill>

An upcoming fix to the machine verifier will catch problems like this by
verifying regunit live intervals.

This fixes PR13498. I am not including the test case from the PR since
we already have one exposing the problem once the verifier is fixed.

llvm-svn: 161182
2012-08-02 16:36:47 +00:00
Jakob Stoklund Olesen 232ae7cc20 Add TargetRegisterInfo::hasRegUnit().
This trivial helper function tests if a register contains a register
unit. It is similar to regsOverlap(), but with asymmetric arguments.

llvm-svn: 161180
2012-08-02 14:45:53 +00:00
NAKAMURA Takumi 528a4fa860 include/llvm/Analysis/RegionInfo.h: Appease msvc.
llvm-svn: 161179
2012-08-02 14:44:01 +00:00
Jakob Stoklund Olesen bde5dc5e46 Add report() functions that take a LiveInterval argument.
llvm-svn: 161178
2012-08-02 14:31:49 +00:00
Hongbin Zheng bb1d209210 Implement the block_iterator of Region based on df_iterator.
llvm-svn: 161177
2012-08-02 14:20:02 +00:00
Nuno Lopes 79a4424f8e JIT::runFunction(): add a fast path for functions with a single argument that is a pointer.
llvm-svn: 161171
2012-08-02 12:09:32 +00:00
Bill Wendling ff9feeb520 Sphinxify the Code Generator document.
llvm-svn: 161164
2012-08-02 08:49:53 +00:00
Jiangning Liu fa18005a4c Support fpv4 for ARM Cortex-M4.
llvm-svn: 161163
2012-08-02 08:35:55 +00:00
Jiangning Liu 6a43bf7d74 Fix , a bug around Thumb instruction LDRD/STRD with negative offset index issue.
llvm-svn: 161162
2012-08-02 08:29:50 +00:00
Jiangning Liu 288e1af8c8 Fix , a bug around ARM instruction DSB encoding and decoding issue.
llvm-svn: 161161
2012-08-02 08:21:27 +00:00
Jiangning Liu 10dd40e42d Fix , a bug around shift immediate operand for ARM instruction ADR.
llvm-svn: 161159
2012-08-02 08:13:13 +00:00
NAKAMURA Takumi 7020f51622 llvm/test/CodeGen/X86/fold-pcmpeqd-1.ll: Make sure this is testing without +avx.
FIXME: Could +avx be checked here too?
llvm-svn: 161156
2012-08-02 06:36:56 +00:00
NAKAMURA Takumi aaca1e690d llvm/test/CodeGen/X86/fold-pcmpeqd-1.ll: Rewrite expressions to pass regardless of PR11031.
- Relax to match even if epilogue (pop %ebp) were emitted.
  - Assume the return value is stored to %xmm0.

llvm-svn: 161155
2012-08-02 06:33:58 +00:00
Manman Ren 5759d01230 X86 Peephole: fold loads to the source register operand if possible.
Machine CSE and other optimizations can remove instructions so folding
is possible at peephole while not possible at ISel.

This patch is a rework of r160919 and was tested on clang self-host on my local
machine.

rdar://10554090 and rdar://11873276

llvm-svn: 161152
2012-08-02 00:56:42 +00:00
Jakob Stoklund Olesen e736b97eff Extract some methods from verifyLiveIntervals.
No functional change.

llvm-svn: 161149
2012-08-02 00:20:20 +00:00
Jakob Stoklund Olesen a766b4746d Also verify RegUnit intervals at uses.
llvm-svn: 161147
2012-08-01 23:52:40 +00:00
Manman Ren 4059145396 X86: mark GATHER instructios as mayLoad
llvm-svn: 161143
2012-08-01 23:28:59 +00:00
Jakob Stoklund Olesen 2db6b65330 Compute instruction heights through a trace.
The height on an instruction is the minimum number of cycles from the
instruction is issued to the end of the trace. Heights are computed for
all instructions in and below the trace center block.

The method for computing heights is different from the depth
computation. As we visit instructions in the trace bottom-up, heights of
used instructions are pushed upwards. This way, we avoid scanning long
use lists, looking for uses in the current trace.

At each basic block boundary, a list of live-in registers and their
minimum heights is saved in the trace block info. These live-in lists
are used when restarting depth computations on a trace that
converges with an already computed trace. They will also be used to
accurately compute the critical path length.

llvm-svn: 161138
2012-08-01 22:36:00 +00:00
Jim Grosbach 8724d0fd99 ARM: Remove redundant instalias.
llvm-svn: 161134
2012-08-01 20:33:05 +00:00
Jim Grosbach 96e8a8dc6d Clean up formatting.
llvm-svn: 161133
2012-08-01 20:33:02 +00:00
Jim Grosbach b437a8c5d5 Tidy up.
llvm-svn: 161132
2012-08-01 20:33:00 +00:00
Chad Rosier 24c19d20c0 Whitespace.
llvm-svn: 161122
2012-08-01 18:39:17 +00:00
Eric Christopher b1b9451337 Temporarily revert c23b933d5f8be9b51a1d22e717c0311f65f87dcd. It's causing
failures in the debug testsuite and possibly PR13486.

llvm-svn: 161121
2012-08-01 18:19:01 +00:00
Nuno Lopes a9a8c62714 remove tabs from my previous commit.
Sorry, not used to this editor anymore.. XCode please come back; you're forgiven :)

llvm-svn: 161120
2012-08-01 17:13:28 +00:00
Nuno Lopes e7220312c2 (hopefuly) fix the remaining cases where null wasnt expected (PR13497).
I'll commit a test to the clang tree.

llvm-svn: 161118
2012-08-01 16:58:51 +00:00
Matt Beaumont-Gay 7947aecaf1 Line endings.
llvm-svn: 161117
2012-08-01 16:42:35 +00:00
Jakob Stoklund Olesen 5e19d35e9a Add DataDep constructors. Explicitly check SSA form.
llvm-svn: 161115
2012-08-01 16:02:59 +00:00
Nuno Lopes b1c473998d fix 'make check' when ocamlopt returns the compiler path with CFLAGS (and there's a cflag with a = char)
llvm-svn: 161114
2012-08-01 15:50:34 +00:00
Axel Naumann e831cdc429 Reference IntrusiveRefCntPtr in doxygen doc of RefCountedBase to get a link to the pointer class documentation.
llvm-svn: 161112
2012-08-01 14:53:13 +00:00
Elena Demikhovsky 3cb3b0045c Added FMA functionality to X86 target.
llvm-svn: 161110
2012-08-01 12:06:00 +00:00
Nick Lewycky fb78083b1c Stay rational; don't assert trying to take the square root of a negative value.
If it's negative, the loop is already proven to be infinite. Fixes PR13489!

llvm-svn: 161107
2012-08-01 09:14:36 +00:00
Chandler Carruth f2113f3b48 Add range erase, element insert, and range insert methods to
TinyPtrVector. With these, it is sufficiently functional for my more
normal / pedestrian uses.

I've not included some r-value reference stuff here because the value
type for a TinyPtrVector is, necessarily, just a pointer.

I've added tests that cover the basic behavior of these routines, but
they aren't as comprehensive as I'd like. In particular, they don't
really test the iterator semantics as thoroughly as they should. Maybe
some brave soul will feel enterprising and flesh them out. ;]

llvm-svn: 161104
2012-08-01 08:40:48 +00:00
Chandler Carruth 660b18fdba Add basic in-bounds asserts to TinyPtrVector::erase.
llvm-svn: 161103
2012-08-01 08:40:46 +00:00
Craig Topper b8aec08819 Add more indirection to the disassembler tables to reduce amount of space used to store the operand types and encodings. Store only the unique combinations in a separate table and store indices in the instruction table. Saves about 32K of static data.
llvm-svn: 161101
2012-08-01 07:39:18 +00:00
Nick Kledzik 5fce8c4ffe Initial commit of new FileOutputBuffer support class.
Since the llvm::sys::fs::map_file_pages() support function it relies on
is not yet implemented on Windows, the unit tests for FileOutputBuffer 
are currently conditionalized to run only on unix.

llvm-svn: 161099
2012-08-01 02:29:50 +00:00
Akira Hatanaka 0820f0ca8e Implement MipsJITInfo::replaceMachineCodeForFunction.
No new test case is added.
This patch makes test JITTest.FunctionIsRecompiledAndRelinked pass on mips
platform.

Patch by Petar Jovanovic.

llvm-svn: 161098
2012-08-01 02:29:24 +00:00
Nick Kledzik 21f80bad45 Fix shadowed variable warning
llvm-svn: 161097
2012-08-01 01:43:10 +00:00
Akira Hatanaka 4a240b0f9d Remove unused variable.
llvm-svn: 161095
2012-08-01 00:37:53 +00:00
Akira Hatanaka 88d76cfd7a Implement MipsSERegisterInfo::eliminateCallFramePseudoInstr. The function emits
instructions that decrement and increment the stack pointer before and after a
call when the function does not have a reserved call frame.

llvm-svn: 161093
2012-07-31 23:52:55 +00:00
Akira Hatanaka cb37e13fa7 Add definitions of two subclasses of MipsRegisterInfo, Mips16RegisterInfo and
MipsSERegisterInfo.

llvm-svn: 161092
2012-07-31 23:41:32 +00:00
Akira Hatanaka d1c43cee24 Add definitions of two subclasses of MipsFrameLowering, Mips16FrameLowering and
MipsSEFrameLowering.

Implement MipsSEFrameLowering::hasReservedCallFrame. Call frames will not be
reserved if there is a call with a large call frame or there are variable sized
objects on the stack.

llvm-svn: 161090
2012-07-31 22:50:19 +00:00
Nick Kledzik 204720bc71 Suppress stderr noise when test case runs.
llvm-svn: 161085
2012-07-31 22:18:15 +00:00