Commit Graph

100845 Commits

Author SHA1 Message Date
Chandler Carruth
adf2c605f9 [docs] Switch to the incredibly simpler "simple table" form. It now
actually looks like the table on the webpage and is entertainingly
smaller, easier to read, and easier to edit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202371 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:41:13 +00:00
Chandler Carruth
19061ddb5f [docs] Delete tons of bad information in the requirements section of the
getting started guide.

Some highlights:
- I heard there was this Clang compiler that you could use for your
  host compiler. Not sure though.
- We no longer have a GCC frontend with weird build restrictions.
- Windows is doing a bit better than partially supported.
- We nuked everything to do with itanium.
- SPUs? Really?
- Xcode 2.5 and gcc 4.0.1 are really not a concern -- they don't work.
- OMG, we actually tried building LLVM on Alpha? Really?
- PowerPC works pretty well these days.

There is still a lot of stuff here I'm pretty dubious about, but I nuked
most of what was actively misleading, out of date, or patently wrong.
Some of it (mingw stuff especially) isn't really lacking, its just that
the comments here were actively wrong. Hopefully folks that know those
platforms can add back correct / modern information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202370 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:33:55 +00:00
Daniel Sanders
fb1e26d9a2 Stop test/CodeGen/X86/v4i32load-crash.ll targeting non-X86-64 targets.
Summary:
Fixes an issue where a test attempts to use -mcpu=x86-64 on non-X86-64 targets.
This triggers an assertion in the MIPS backend since it doesn't know what ABI to
use by default for unrecognized processors.

CC: llvm-commits, rafael

Differential Revision: http://llvm-reviews.chandlerc.com/D2877

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202369 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:24:31 +00:00
Alexey Samsonov
9e443ca92a [CMake] Introduce LLVM_BUILD_EXTERNAL_COMPILER_RT option
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202363 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 08:59:01 +00:00
Eric Christopher
1348dc097d Don't emit anything into the debug_ranges section if we aren't emitting
any ranges - this includes CU ranges where we were previously emitting an
end list marker even if we didn't have a list.

Testcase includes a test for line table only code emission as the problem
was noticed while writing this test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202357 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 07:44:45 +00:00
Mark Seaborn
1c30a35b0f Exception handling docs: Fix a typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202354 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 06:54:04 +00:00
Craig Topper
74be63b014 [X86] Fix Uses/Defs lists for INS, OUTS, SCAS, CMPS, LODS
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202348 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 05:08:25 +00:00
Craig Topper
7e992687ad [X86] Add RAX/EAX/AX Uses/Defs to XCHG RAX/EAX/AX instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202347 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 04:27:00 +00:00
Craig Topper
956ef7f165 [X86] Add RAX/EAX/AX/AL Uses/Defs to the absolute memory location move instructions. Patch by Florian Lukas with some additional instructions fixed by me. Fixes PR18975.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202345 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 04:07:57 +00:00
Craig Topper
9572b75e5b Fix indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202344 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 03:30:36 +00:00
Craig Topper
d7c1afb11a Fix odd indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202342 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 03:11:13 +00:00
Juergen Ributzka
4fb1463736 Revert "Use count 0."
This reverts commit r202283, because when we use GuardMalloc the test will fail
due to additional output to std err.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202341 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 03:10:10 +00:00
Ben Langmuir
8a6c29ef5b Revert "Use StringRef in raw_fd_ostream constructor"
This reverts commit r202225, which may cause a performance regression.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202338 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 02:09:10 +00:00
Michel Danzer
644aecfc97 R600/SI: Optimize SI_KILL for constant operands
If the SI_KILL operand is constant, we can either clear the exec mask if
the operand is negative, or do nothing otherwise.

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202337 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 01:47:09 +00:00
Michel Danzer
a5fbf24716 R600/SI: Allow SI_KILL for geometry shaders
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202336 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 01:47:02 +00:00
Eric Christopher
14ec6808c4 If we're only emitting line tables for a particular CU then don't add
any ranges to the list of ranges for the CU as we don't want to emit
them anyway. This ensures that we will still emit ranges if we have
a compile unit compiled with only line tables and one compiled with
full debug info requested (we'll emit for the one with full debug info).

Update testcase metadata accordingly to continue emitting ranges.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202333 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 01:25:00 +00:00
Eric Christopher
0181303087 Add a debug info code generation level to the compile unit metadata
and update everything accordingly. This can be used to conditionalize
the amount of output in the backend based on the amount of debug
requested/metadata emission scheme by a front end (e.g. clang).

Paired with a commit to clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202332 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 01:24:56 +00:00
Eric Christopher
dac5e919df Formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202323 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 00:15:44 +00:00
Eric Christopher
1c2d4eb2b6 Add an explanatory comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202321 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 00:04:54 +00:00
Eric Christopher
63ba773cf0 Grammar and spelling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202318 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:54:42 +00:00
Adrian Prantl
f68eb4f989 Fix a type error that crept into r202313.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202317 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:46:39 +00:00
Eric Christopher
0115a4ef95 Remove unnecessary llvm:: qualification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202316 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:27:16 +00:00
Andrew Trick
9ad6bda08e Use regnum regex in an XCore test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202315 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:22:49 +00:00
Adrian Prantl
6a3e1dbb8c Debug info: Refactor AsmPrinter::EmitDwarfRegOp to make the control flow
more obvious.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202313 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:03:37 +00:00
Matt Arsenault
3f19b69b01 R600: Remove unnecessary build_vector pattern.
It is already fully handled in AMDGPUISelDAGToDAG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202312 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:00:58 +00:00
Andrew Trick
aa115a7fbf Very temporarily XFAILing a test. Will be fixed shortly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202310 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 22:39:59 +00:00
Nico Rieck
06eab82006 Fix broken FileCheck prefixes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202308 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 22:29:11 +00:00
Andrew Trick
eaf8a32859 Add a limit to the heuristic that register allocates instructions in local order.
This handles pathological cases in which we see 2x increase in spill
code for large blocks (~50k instructions). I don't have a unit test
for this behavior.

Fixes rdar://16072279.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202304 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 22:07:26 +00:00
Rafael Espindola
692c94c1c9 Use an install name dir of @executable_path/../lib instead of @rpath.
Using @executable_path/../lib matches what we have on Makefiles and works
with older versions of OS X too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202302 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 21:51:28 +00:00
Quentin Colombet
685b0d9315 Lower unsigned vsetcc to psubus in certain cases
The current approach to lower a vsetult is to flip the sign bit of the
operands, swap the operands and then use a (signed) pcmpgt.  psubus (unsigned
saturating subtract) can be used to emulate a vsetult more efficiently:

+    case ISD::SETULT: {
+      // If the comparison is against a constant we can turn this into a
+      // setule.  With psubus, setule does not require a swap.  This is
+      // beneficial because the constant in the register is no longer
+      // destructed as the destination so it can be hoisted out of a loop.

I also enable lowering via psubus in a few other cases where it's clearly
beneficial: setule and setuge if minu/maxu cannot be used.
    
rdar://problem/14338765

Patch by Adam Nemet <anemet@apple.com>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202301 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 21:39:12 +00:00
Rafael Espindola
c540920a24 Don't mix the plain and keyword signatures of target_link_libraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202299 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 20:39:28 +00:00
Aaron Ballman
a4e265ae47 Silencing an MSVC signed comparison warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202295 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 20:22:20 +00:00
Hal Finkel
4a7156d421 Fix the aggressive anti-dep breaker's subregister definition handling
The aggressive anti-dependency breaker scans instructions, bottom-up, within the
scheduling region in order to find opportunities where register renaming can
be used to break anti-dependencies.

Unfortunately, the aggressive anti-dep breaker was treating a register definition
as defining all of that register's aliases (including super registers). This behavior
is incorrect when the super register is live and there are other definitions of
subregisters of the super register.

For example, given the following sequence:

%CR2EQ<def> = CROR %CR3UN, %CR3UN<kill>
%CR2GT<def> = IMPLICIT_DEF
%X4<def> = MFOCRF8 %CR2

the analysis of the first subregister definition would work as expected:
Anti:   %CR2GT<def> = IMPLICIT_DEF
        Def Groups: CR2GT=g194->g0(via CR2)
        Antidep reg: CR2GT (zero group)
        Use Groups:

but the analysis of the second one would not:
Anti:   %CR2EQ<def> = CROR %CR3UN, %CR3UN<kill>
        Def Groups: CR2EQ=g195
        Antidep reg: CR2EQ
        Rename Candidates for Group g195: ...

because, when processing the %CR2GT<def>, we'd mark all super registers of
%CR2GT (%CR2 in this case) as defined. As a result, when processing
%CR2EQ<def>, %CR2 no longer appears to be live, and %CR2EQ<def>'s group is not
%unioned with the %CR2 group.

I don't have an in-tree test case for this yet (and even if I did, I don't have
a small one).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202294 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 20:20:30 +00:00
Reid Kleckner
726bae9a66 GlobalOpt: Apply fastcc to internal x86_thiscallcc functions
We should apply fastcc whenever profitable.  We can expand this list,
but there are lots of conventions with performance implications that we
don't want to change.

Differential Revision: http://llvm-reviews.chandlerc.com/D2705

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202293 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 19:57:30 +00:00
Nico Rieck
0a91f48308 Relax COFF string table check
COFF object files with 0 as string table size are currently rejected. This
prevents us from reading object files written by tools like cvtres that
violate the PECOFF spec and write 0 instead of 4 for the size of an empty
string table.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202292 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 19:51:44 +00:00
Nico Rieck
5732fbd6e4 Fix broken FileCheck prefix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202291 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 19:51:08 +00:00
David Blaikie
3ae2abb11e Use the overloaded std::abs rather than C's abs(int) to address Clang's -Wabsolute-value
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202286 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 19:12:28 +00:00
Rafael Espindola
a55b3dfdc6 Use count 0.
Thanks to Roman Divacky for the suggestion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202283 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 17:57:35 +00:00
Rafael Espindola
f985aecb02 Fix typo. Thanks to Roman Divacky for noticing it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202277 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 17:05:38 +00:00
Rafael Espindola
c4bdb93d6a Compare DataLayout by Value, not by pointer.
This fixes spurious warnings in llvm-link about the datalayout not matching.

Thanks to Zalman Stern for reporting the bug!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202276 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 17:02:08 +00:00
Rafael Espindola
e3561972d4 Use a sorted array to store the information about a few address spaces.
We don't have any test with more than 6 address spaces, so a DenseMap is
probably not the correct answer.

An unsorted array would also be OK, but we have to sort it for printing anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202275 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 16:58:35 +00:00
Rafael Espindola
3c4c95e522 Move these functions out of line. A DenseMap lookup is not a simple operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202274 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 16:49:40 +00:00
Andrew Trick
401d35bedb Fix PR18165: LSR must avoid scaling factors that exceed the limit on truncated use.
Patch by Michael Zolotukhin!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202273 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 16:31:56 +00:00
Alexey Samsonov
12c9f92bb1 llvm-symbolizer: use dynamic symbol table if the regular one is stripped.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202265 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 13:10:01 +00:00
Alexey Samsonov
2895793c6a Move getELFDynamicSymbolIterators to a public header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202264 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 12:51:19 +00:00
NAKAMURA Takumi
18f2091b7b [CMake] BUILD_SHARED_LIBS: Fixup for r202261: Give PULIC to system_libs in LLVMSupport.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202263 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 12:18:55 +00:00
Michael Kuperstein
2d0eef4c7d Ensure bitcode encoding of instructions and their operands stays stable.
This includes instructions with aggregate operands (insert/extract), instructions with vector operands (insert/extract/shuffle), binary arithmetic and bitwise instructions, conversion instructions and terminators.

Work was done by lama.saba@intel.com.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202262 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 12:06:36 +00:00
NAKAMURA Takumi
2e0d7a9337 [CMake] Work around to use target_link_libraries(PUBLIC) in BUILD_SHARED_LIBS mode.
FIXME: It may be PRIVATE since SO knows its dependent libs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202261 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 11:58:11 +00:00
NAKAMURA Takumi
8571df6ae5 [CMake] Move LLVMBUILD_LIB_DEPS stuff from add_llvm_library (and LLVm-Config) to llvm_add_library to centralize target_link_libraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202260 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 11:58:01 +00:00
Tim Northover
530869f8bc AArch64: simplify tbl/tbx polymorphism
The table argument is always 128-bit (and interpreted as <16 x i8>) so the
extra specifier for it is just clutter.

No user-visible behaviour change, so no tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202258 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 11:55:09 +00:00