Commit Graph

18028 Commits

Author SHA1 Message Date
Benjamin Kramer
b47aceaf06 Revert "BlockFrequency: Saturate at 1 instead of 0 when multiplying a frequency with a branch probability."
This reverts commit r184584. Breaks PPC selfhost.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184590 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 20:20:27 +00:00
Benjamin Kramer
93702a3b07 BlockFrequency: Saturate at 1 instead of 0 when multiplying a frequency with a branch probability.
Zero is used by BlockFrequencyInfo as a special "don't know" value. It also
causes a sink for frequencies as you can't ever get off a zero frequency with
more multiplies.

This recovers a 10% regression on MultiSource/Benchmarks/7zip. A zero frequency
was propagated into an inner loop causing excessive spilling.

PR16402.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184584 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 19:30:05 +00:00
Justin Holewinski
0ff4287fe2 [NVPTX] Add support for selecting CUDA vs OCL mode based on triple
IR for CUDA should use "nvptx[64]-nvidia-cuda", and IR for NV OpenCL should use "nvptx[64]-nvidia-nvcl"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184579 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 18:51:49 +00:00
Andrew Trick
03dca5e4b6 Handle more cases in LiveRangeEdit::eliminateDeadDefs.
Live intervals for dead physregs may be created during coalescing. We
need to update these in the event that their instruction goes away.

crash.ll is the unit test that catches it when MI sched is enabled on
X86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184572 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 18:33:20 +00:00
Andrew Trick
f1f99f394f Refactor LiveRangeEdit::eliminateDeadDefs.
I want to add logic to handle more cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184571 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 18:33:17 +00:00
Andrew Trick
1f8b48ab32 MI-Sched: Adjust regpressure limits for reserved regs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184564 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 18:32:58 +00:00
Ulrich Weigand
84569698f0 [PowerPC] Support R_PPC_REL16 family of relocations
The GNU assembler supports (as extension to the ABI) use of PC-relative
relocations in half16 fields, which allows writing code like:

  li 1, base-.

This patch adds support for those relocation types in the assembler.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184552 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 14:44:37 +00:00
Ulrich Weigand
cab0a19338 [PowerPC] Support various tls-related modifiers
The current code base only supports the minimum set of tls-related
relocations and @modifiers that are necessary to support compiler-
generated code.  This patch extends this to the full set defined
in the ABI (and supported by the GNU assembler) for the benefit
of the assembler parser.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184551 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 14:44:15 +00:00
Ulrich Weigand
f7c1ee79fe [PowerPC] Support @higher et.al. modifiers
This adds support for the @higher, @highera, @highest, and @highesta
modifers, including some missing relocation types.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184550 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 14:43:42 +00:00
Ulrich Weigand
f8f87dcfce [PowerPC] Support @toc@h modifier
This adds the relocation type and other necessary infrastructure
to use the @toc@h modifier in the assembler.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184549 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 14:43:10 +00:00
Ulrich Weigand
d284957246 [PowerPC] Support @h modifier
This adds necessary infrastructure to support the @h modifier.
Note that all required relocation types were already present
(and unused).

This patch provides support for using @h in the assembler;
it would also be possible to now use this feature in code
generated by the compiler, but this is not done yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184548 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 14:42:49 +00:00
Ulrich Weigand
92cfa61c50 [PowerPC] Rename some more VK_PPC_ enums
This renames more VK_PPC_ enums, to make them more closely reflect
the @modifier string they represent.  This also prepares for adding
a bunch of new VK_PPC_ enums in upcoming patches.

For consistency, some MO_ flags related to VK_PPC_ enums are
likewise renamed.

No change in behaviour.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184547 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 14:42:20 +00:00
Kostya Serebryany
e0026d00f9 add Function::removeFnAttr()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184536 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 07:38:09 +00:00
Michael Gottesman
d3d03fe758 [APFloat] Added missing doxygen module closing statement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184526 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 04:14:17 +00:00
Sean Silva
4235ba32f2 [yaml2obj][ELF] Don't explicitly set Binding with STB_*
Instead, just have 3 sub-lists, one for each of
{STB_LOCAL,STB_GLOBAL,STB_WEAK}.

This allows us to be a lot more explicit w.r.t. the symbol ordering in
the object file, because if we allowed explicitly setting the STB_*
`Binding` key for the symbol, then we might have ended up having to
shuffle STB_LOCAL symbols to the front of the list, which is likely to
cause confusion and potential for error.

Also, this new approach is simpler ;)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184506 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 00:27:50 +00:00
Ulrich Weigand
846565924a [PowerPC] Clean up VK_PPC_TOC... names
This is another minor cleanup; to bring enum names in line
with the corresponding @modifier names, this renames:

  VK_PPC_TOC -> VK_PPC_TOCBASE
  VK_PPC_TOC_ENTRY -> VK_PPC_TOC16

No code change intended.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184491 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 22:39:42 +00:00
Rafael Espindola
bdae6fa82c Remove last use of PathV1.h from Archive.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184484 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 22:02:10 +00:00
Rafael Espindola
b0bdcb5f8a make getLastModificationTime const. Move it with the other getters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184478 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 21:51:49 +00:00
Sean Silva
e38f640b22 [yaml2obj][ELF] Add support for st_value and st_size.
After this patch, the ELF file produced by
`yaml2obj-elf-symbol-basic.yaml`, when linked and executed on x86_64
(under SysV ABI, obviously; I tested on Linux), produces a working
executable that goes into an infinite loop!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184469 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 20:59:47 +00:00
Sean Silva
6525e92b32 [yaml2obj][ELF] Allow symbols to reference sections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184468 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 20:59:41 +00:00
Rafael Espindola
11ca2e508c Add a setLastModificationAndAccessTime to PathV2.
With this we can remove the last use of PathV1 from llvm-ar.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184464 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 20:56:14 +00:00
Meador Inge
be87bce32b Remove the simplify-libcalls pass (finally)
This commit completely removes what is left of the simplify-libcalls
pass.  All of the functionality has now been migrated to the instcombine
and functionattrs passes.  The following C API functions are now NOPs:

  1. LLVMAddSimplifyLibCallsPass
  2. LLVMPassManagerBuilderSetDisableSimplifyLibCalls

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184459 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 19:48:07 +00:00
Rafael Espindola
29c17db650 Add support for getting the last modification time from a file_status.
Use that in llvm-ar.cpp to replace a use of sys::PathWithStatus.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184450 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 18:42:04 +00:00
Michael Gottesman
a1694e5784 [APFloat] Rename isIEEENormal => isNormal and remove old isNormal method.
The old isNormal is already functionally replaced by the method isFiniteNonZero
in r184350 and all references to said method were replaced in LLVM/clang in
r184356/134366.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184449 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 18:34:38 +00:00
Rafael Espindola
438600e697 Remove the transitional GetUniqueID.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184433 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 15:20:11 +00:00
Rafael Espindola
9aa3365426 Rename fs::GetUniqueID to fs::getUniqueID to match the style guide.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184431 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 15:06:35 +00:00
Bill Wendling
face8d901e Remove static, because it was messing everything up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184400 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 06:51:06 +00:00
Bill Wendling
3b6e067f56 Make the '==' operator inline.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184375 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 22:16:11 +00:00
Bill Wendling
8623ecb263 Make this static inline to avoid duplicates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184374 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 22:12:11 +00:00
Bill Wendling
59aa540738 Make the comparison operators non-member functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184373 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 22:09:25 +00:00
David Blaikie
0159ae4295 DebugInfo: PR14763/r183329 correct the location of indirect parameters
We had been papering over a problem with location info for non-trivial
types passed by value by emitting their type as references (this caused
the debugger to interpret the location information correctly, but broke
the type of the function). r183329 corrected the type information but
lead to the debugger interpreting the pointer parameter as the value -
the debug info describing the location needed an extra dereference.

Use a new flag in DIVariable to add the extra indirection (either by
promoting an existing DW_OP_reg (parameter passed in a register) to
DW_OP_breg + 0 or by adding DW_OP_deref to an existing DW_OP_breg + n
(parameter passed on the stack).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184368 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 21:55:13 +00:00
David Blaikie
c971cb8281 DebugInfo: Specify that a value is stored indirectly
This is a precursor to fix a regression caused by PR14763/r183329 where
the location of a non-trivial pass-by-value parameter ends up
incorrectly referring directly to the parameter (a pointer) rather than
the object pointed to by the pointer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184365 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 21:52:48 +00:00
David Blaikie
3df7d2f70b llvm-dwarfdump: Add support for dumping the .debug_loc section
This is a basic implementation - we still don't have any support (that I
know of) for dumping DWARF expressions in a meaningful way, so the
location information itself is just printed as a sequence of bytes as we
do elsewhere.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184361 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 21:37:13 +00:00
Bill Wendling
ba54bca472 Access the TargetLoweringInfo from the TargetMachine object instead of caching it. The TLI may change between functions. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184360 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 21:36:55 +00:00
Ulrich Weigand
4df4bccc71 [MC/DWARF] Generate multiple .debug_line entries for adjacent .loc directives
The compiler occasionally generates multiple .loc directives in a row
(at the same instruction address).  These need to be transformed into
multple actual .debug_line table entries, since they are used to signal
certain information to the debugger (e.g. if the opening brace of a
function body is on the same line as the declaration).

The MCAsmStreamer version of EmitDwarfLocDirective handles this
correctly by emitting a .loc directive every time it is called.
However, the MCObjectStream version simply defaults to recording
the information and emitting only a single table entry later,
e.g. when EmitInstruction is called.

This patch introduces a MCAsmStreamer::EmitDwarfLocDirective
version that emits a line table entry for a .loc directive
that may already be pending before recording the new directive.
(This is similar to how this is handled in GNU as.)

With this patch (and the code alignment factor patch) applied,
I'm now getting identical DWARF .debug sections for all test-suite
object files on PowerPC for the internal and the external assembler.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184357 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 21:27:27 +00:00
Michael Gottesman
07969dc8ae [APFloat] Converted all references to APFloat::isNormal => APFloat::isFiniteNonZero.
Turns out all the references were in llvm and not in clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184356 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 21:23:18 +00:00
Bill Wendling
f9fd58a44b Access the TargetLoweringInfo from the TargetMachine object instead of caching it. The TLI may change between functions. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184352 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 21:07:11 +00:00
Aaron Ballman
4655485eb7 Modified the implementation of fs::GetUniqueID on Windows such that it actually finds a unique identifier for a file. Also adds unit tests for GetUniqueID.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184351 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 21:03:50 +00:00
Michael Gottesman
7032c883cd [APFloat] Added isFiniteNonZero predicate.
This is the first patch in a series of patches to rename isNormal =>
isFiniteNonZero and isIEEENormal => isNormal. In order to prevent careless
errors on my part the overall plan is:

1. Add the isFiniteNonZero predicate with tests. I can do this in a method
independent of isNormal. (This step is this patch).
2. Convert all references to isNormal with isFiniteNonZero. My plan is to
comment out isNormal locally and continually convert isNormal references =>
isFiniteNonZero until llvm/clang compiles.
3. Remove old isNormal and rename isIEEENormal to isNormal.
4. Look through all of said references from patch 2 and see if we can simplify
them by using the new isNormal.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184350 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 21:00:17 +00:00
Bill Wendling
ea44281d5d Access the TargetLoweringInfo from the TargetMachine object instead of caching it. The TLI may change between functions. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184349 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 20:51:24 +00:00
Bill Wendling
2e1dc2d265 Add operator!= as the compliment to operator==. This is for a future change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184348 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 20:50:12 +00:00
Bill Wendling
d626d33246 Don't cache the TLI object since we have access to it through TargetMachine already.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184346 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 20:32:16 +00:00
Michael Gottesman
c896020dd8 [APFloat] Expose isSmallest/isLargest as public methods.
I have had several requests to expose these two methods as public for various
potential optimizations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184345 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 20:31:54 +00:00
Matt Arsenault
ad966ea7a8 Move StructurizeCFG out of R600 to generic Transforms.
Register it with PassManager

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184343 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 20:18:24 +00:00
Rafael Espindola
7c8397081c Remove Path::getDirectoryContents.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184311 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 15:32:37 +00:00
Rafael Espindola
ca0984cb86 Remove Path::isObjectFile.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184305 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 14:25:38 +00:00
Rafael Espindola
f6f3be69d8 Remove Path::canExecute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184298 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 13:25:31 +00:00
Sean Silva
ea94e114b4 [yaml2obj][ELF] Support ELFOSABI_* enum.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 00:55:28 +00:00
Sean Silva
5ba1225fb0 [yaml2obj][ELF] Support st_info through Binding and Type YAML keys.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184263 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 00:11:59 +00:00
Sean Silva
afcf60fe15 [yaml2obj][ELF] Rudimentary symbol table support.
Currently, we only output the name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184255 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-18 23:14:03 +00:00