Commit Graph

114320 Commits

Author SHA1 Message Date
Jonathan Roelofs
dcd2094389 Discourage in-source autoconf builds (as we already do for the cmake build)
http://reviews.llvm.org/D7961


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230812 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 23:35:47 +00:00
Bill Schmidt
88bbdc790e Regenerated test case from pr 230801 for change in LLVM IR syntax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230811 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 23:29:57 +00:00
David Blaikie
ee62d93f1b Update SystemZ/Large test generators to handle new gep IR syntax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230810 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 23:29:39 +00:00
David Blaikie
834cb56c1b Update SystemZ/Large test generators to handle new load IR syntax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230809 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 23:29:33 +00:00
Philip Reames
b16dac58b5 [new docs] Performance Tips for Frontend Authors
As mentioned on llvm-dev, this is a new documentation page intended to collect tips for frontend authors on how to generate IR that LLVM is able to optimize well. These types of things come up repeated in review threads and it would be good to have a place to save them.

I added a small handful to start us off, but I mostly want to get the framework in place. Once the docs are here, we can add to them incrementally.  If you know of something appropriate for this page, please add it!

Differential Revision: http://reviews.llvm.org/D7890



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230807 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 23:14:50 +00:00
Benjamin Kramer
0a7ed28ea6 MachineDominators: Move applySplitCriticalEdges into the cpp file.
It's too big for inlining anyways. Also clean it up slightly. No functionality
change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230806 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 23:13:13 +00:00
David Majnemer
7de1732297 llvm-vtabledump: Update field with a better name
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230804 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 22:35:25 +00:00
Bill Schmidt
52a5087a4b Revert test case until it can be fixed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230803 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 22:31:14 +00:00
Bill Schmidt
0e1e8e2f62 [PowerPC] Fix PR22711 - Misaligned .toc section
Straightforward patch to emit an alignment directive when emitting a
TOC entry.  The test case was generated from the test in PR22711 that
demonstrated a misaligned .toc section.  The object code is run
through llvm-readobj to verify that the correct alignment has been
applied to the .toc section.

Thanks to Ulrich Weigand for running down where the fix was needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230801 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 22:14:10 +00:00
Benjamin Kramer
9f9dcf8046 Reduce double set lookups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230798 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:43:14 +00:00
David Blaikie
7c9c6ed761 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00
Charles Davis
dc64962c86 Target/X86: Never use the redzone for Win64 ABI functions.
Summary:
Until now, we did this (among other things) based on whether or not the
target was Windows. This is clearly wrong, not just for Win64 ABI functions
on non-Windows, but for System V ABI functions on Windows, too. In this
change, we make this decision based on the ABI the calling convention
specifies instead.

Reviewers: rnk

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7953

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230793 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:11:16 +00:00
Hal Finkel
e03aac601f [PowerPC] Use vector types for memcpy and friends (sometimes)
When using Altivec, we can use vector loads and stores for aligned memcpy and
friends. Starting with the P7 and VXS, we have reasonable unaligned vector
stores. Starting with the P8, we have fast unaligned loads too.

For QPX, we use vector loads are stores, but only for aligned memory accesses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230788 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:58:28 +00:00
David Blaikie
198d8baafb [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.

This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.

* This doesn't modify gep operators, only instructions (operators will be
  handled separately)

* Textual IR changes only. Bitcode (including upgrade) and changing the
  in-memory representation will be in separate changes.

* geps of vectors are transformed as:
    getelementptr <4 x float*> %x, ...
  ->getelementptr float, <4 x float*> %x, ...
  Then, once the opaque pointer type is introduced, this will ultimately look
  like:
    getelementptr float, <4 x ptr> %x
  with the unambiguous interpretation that it is a vector of pointers to float.

* address spaces remain on the pointer, not the type:
    getelementptr float addrspace(1)* %x
  ->getelementptr float, float addrspace(1)* %x
  Then, eventually:
    getelementptr float, ptr addrspace(1) %x

Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.

update.py:
import fileinput
import sys
import re

ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile(       r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")

def conv(match, line):
  if not match:
    return line
  line = match.groups()[0]
  if len(match.groups()[5]) == 0:
    line += match.groups()[2]
  line += match.groups()[3]
  line += ", "
  line += match.groups()[1]
  line += "\n"
  return line

for line in sys.stdin:
  if line.find("getelementptr ") == line.find("getelementptr inbounds"):
    if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
      line = conv(re.match(ibrep, line), line)
  elif line.find("getelementptr ") != line.find("getelementptr ("):
    line = conv(re.match(normrep, line), line)
  sys.stdout.write(line)

apply.sh:
for name in "$@"
do
  python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
  rm -f "$name.tmp"
done

The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh

After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).

The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7636

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:29:02 +00:00
Benjamin Kramer
56f3b7f2fd Refer users looking for the release notes to 3.6.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230781 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:06:26 +00:00
Eric Christopher
930da21265 Remove the Forward Control Flow Integrity pass and its dependencies.
This work is currently being rethought along different lines and
if this work is needed it can be resurrected out of svn. Remove it
for now as no current work in ongoing on it and it's unused. Verified
with the authors before removal.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230780 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:03:38 +00:00
Justin Bogner
b4d6a560c1 Object: Test for reading kext bundles
In the review for r230567, it was pointed out we should really test
the lib/Object part of that change. This does so using llvm-readobj.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230779 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 18:58:23 +00:00
Reid Kleckner
50a130cff5 Delete LLVM_DELETED_FUNCTION from coding standards
It didn't seem worth leaving behind a guideline to use '= delete' to
make a class uncopyable. That's a well known C++ design pattern.

Reported on the mailing list and in PR22724.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230776 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 18:34:16 +00:00
Mehdi Amini
26d628d6ce Change the fast-isel-abort option from bool to int to enable "levels"
Summary:
Currently fast-isel-abort will only abort for regular instructions,
and just warn for function calls, terminators, function arguments.
There is already fast-isel-abort-args but nothing for calls and
terminators.

This change turns the fast-isel-abort options into an integer option,
so that multiple levels of strictness can be defined.
This will help no being surprised when the "abort" option indeed does
not abort, and enables the possibility to write test that verifies
that no intrinsics are forgotten by fast-isel.

Reviewers: resistor, echristo

Subscribers: jfb, llvm-commits

Differential Revision: http://reviews.llvm.org/D7941

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230775 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 18:32:11 +00:00
Reid Kleckner
13c5474d35 Minor follow-ups to r229720 suggested on llvmdev
"svn" patch by Sedat Dilek plus trimming whitespace added in r229720.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230773 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 18:22:46 +00:00
Rafael Espindola
150233c378 Centralize handling of the eh_begin and eh_end labels.
This removes a bit of duplicated code and more importantly, remembers the
labels so that they don't need to be looked up by name.

This in turn allows for any name to be used and avoids a crash if the name
we wanted was already taken.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230772 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 18:18:39 +00:00
Sanjay Patel
4ed780a81c remove function names from comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230771 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 18:07:41 +00:00
Owen Anderson
ecf670391b Switch a std::map to a DenseMap in CodeGenRegisters.
The keys of the map are unique by pointer address, so there's no need
to use the llvm::less comparator. This allows us to use DenseMap
instead, which reduces tblgen time by 20% on my stress test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230769 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 17:57:01 +00:00
Sanjay Patel
b0e53cd656 remove function names from comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230766 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 17:27:15 +00:00
Renato Golin
636aacf211 Equally to NetBSD, Bitrig/ARM uses the Itanium-ABI.
Patch by Patrick Wildt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230762 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 16:35:27 +00:00
Zoran Jovanovic
2846ef3680 [mips][microMIPS] Change register class for GP register
Differential Revision: http://reviews.llvm.org/D7934


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230760 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 15:03:50 +00:00
Tom Stellard
27eab65932 R600/SI: Add missing mubuf instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230759 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 14:59:46 +00:00
Tom Stellard
a9c15883ba R600/SI: Consistently put soffset before the offset operand for mubuf instructions
This matches the assembly syntax.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230758 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 14:59:44 +00:00
Tom Stellard
4ed3bf29cd R600/SI: Add slc, glc, and tfe to non-atomic _ADDR64 instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230757 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 14:59:41 +00:00
Petar Jovanovic
8407da0dbc Pass correct -mtriple for krait-cpu-div-attribute.ll
Not passing mtriple for one of the tests caused a regression failure
on MIPS buildbot. The issue was introduced by r230651.

Differential Revision: http://reviews.llvm.org/D7938


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230756 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 14:46:41 +00:00
Chandler Carruth
c4179ffed3 [x86] Run most of the rest of the shuffle combining over non-128-bit
vectors. This lets us fix the rest of the v16 lowering problems when
pshufb is clearly better.

We might still be able to improve some of the lowerings by enabling the
other combine-based rewriting to fire for non-128-bit vectors, but this
at least should remove any regressions from using the fancy v16i16
lowering strategy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230753 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 12:13:14 +00:00
Chandler Carruth
2d58cc5f1b [x86] Teach a bunch of the x86-specific shuffle combining to work with
256-bit vectors as well as 128-bit vectors. Fixes some of the redundant
shuffles for v16i16.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230752 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 11:45:13 +00:00
Chandler Carruth
8c71e440a2 [x86] Make the v8i16 clever single-input shuffle lowering usable for
repeated 128-bit lane shuffles of wider vector types and use it to lower
256-bit v16i16 vector shuffles where applicable.

This should let us perfectly lowering the pattern of pshuflw and pshufhw
even for AVX2 256-bit patterns.

I've not added AVX-512 support, but it should be trivial for someone
working on that to wire up.

Note that currently this generates bad, long shuffle chains because we
don't combine 256-bit target shuffles. The subsequent patches will fix
that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230751 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 11:33:46 +00:00
Chandler Carruth
f5651f8ab6 [x86] Add a bunch more tests for v16i16 shuffles. All of these are taken
by mirroring v8i16 test cases across both 128-bit lanes. This should
highlight problems where we aren't correctly using 128-bit shuffles to
implement things.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230750 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 11:25:10 +00:00
Toma Tabacu
98b7502468 [mips] Remove redundant periods from -mattr=help descriptions for MIPS.
Summary: Also fixes an infringement of the 80-column limit rule.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7910

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230748 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 10:44:02 +00:00
Zachary Turner
b6fca0bb37 [llvm-pdbdump] Fix member initialization order warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230747 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 09:53:55 +00:00
Zachary Turner
756b823064 [llvm-pdbdump] Colorize output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230746 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 09:15:59 +00:00
Zachary Turner
ade49914b6 [llvm-pdbdump] Fix warnings found by clang-cl self host.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230745 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 09:15:31 +00:00
Zachary Turner
964a619cad [llvm-pdbdump] Add support for dumping global variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230744 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 09:15:18 +00:00
Chandler Carruth
b1961a3896 [x86] Make the single-input v8i16 lowering directly recurse rather than
going back through the entire vector shuffle lowering.

This is an important step to being able to re-use this logic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230743 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 09:11:38 +00:00
Vasileios Kalintiris
912e816cc2 [mips] Account for constant-zero operands in ADDE nodes.
Summary:
We identify the cases where the operand to an ADDE node is a constant
zero. In such cases, we can avoid generating an extra ADDu instruction
disguised as an identity move alias (ie. addu $r, $r, 0 --> move $r, $r).

Reviewers: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7906

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230742 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 09:01:39 +00:00
Anna Zaks
f891336a25 [asan] Skip promotable allocas to improve performance at -O0
Currently, the ASan executables built with -O0 are unnecessarily slow.
The main reason is that ASan instrumentation pass inserts redundant
checks around promotable allocas. These allocas do not get instrumented
under -O1 because they get converted to virtual registered by mem2reg.
With this patch, ASan instrumentation pass will only instrument non
promotable allocas, giving us a speedup of 39% on a collection of
benchmarks with -O0. (There is no measurable speedup at -O1.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230724 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 03:12:36 +00:00
Sanjoy Das
791a501266 Don't modify the DenseMap being iterated over from within the loop
that is iterating over it

Inserting elements into a `DenseMap` invalidated iterators pointing
into the `DenseMap` instance.

Differential Revision: http://reviews.llvm.org/D7924


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230719 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 02:24:16 +00:00
Sanjoy Das
26f67b5a27 Fix a use-iterator-after-invalidate error
AnalysisResult::getResultImpl reuses an iterator into a DenseMap after
inserting elements into it. This change adds code to recompute the
iterator before the second use.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230718 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 02:19:11 +00:00
Charles Davis
d51be017f0 Target/X86: Save Win64 non-volatile registers in a Win64 ABI function.
Summary:
This change causes us to actually save non-volatile registers in a Win64
ABI function that calls a System V ABI function, and vice-versa.

Reviewers: rnk

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7919

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230714 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 00:57:01 +00:00
David Majnemer
a72314cd80 llvm-vtabledump: Dump catch/throw exception structures for MS ABI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230713 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 00:43:58 +00:00
Eric Christopher
9656d2d2bc Rewrite MachineOperand::print and MachineInstr::print to avoid
uses of TM->getSubtargetImpl and propagate to all calls.

This could be a debugging regression in places where we had a
TargetMachine and/or MachineFunction but don't have it as part
of the MachineInstr. Fixing this would require passing a
MachineFunction/Function down through the print operator, but
none of the existing uses in tree seem to do this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230710 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 00:11:34 +00:00
Rafael Espindola
fc0ad8d28d Put jump tables in distinct sections if -ffunction-sections is used.
A small regression in r230411 was that we were basing the decision on
-fdata-sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230707 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-26 23:55:11 +00:00
Lang Hames
e508109037 [Orc][Kaleidoscope] More tutorial cleanup, a little extra debugging output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230705 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-26 23:52:42 +00:00
Zachary Turner
4490f2dc1a [llvm-pdbdump] Add missing files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230704 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-26 23:51:49 +00:00