llvm-svn: 288268

When svn does not know the password and it has to prompt, it needs to query.
However it won't when invoked from the Python script and instead fails with:

svn: E215004: Authentication failed and interactive prompting is disabled; see the --force-interactive option

Differential Revision: https://reviews.llvm.org/D27274

llvm-svn: 288266

llvm-svn: 288265

In an effort to get libfuzzer working on Windows, we need to make
a distinction between what functions require platform specific
code (e.g. different code on Windows vs Linux) and what code
doesn't.  IO functions, for example, tend to be platform
specific.

This patch separates out some of the functions which will need
to have platform specific implementations into different headers,
so that we can then provide different implementations for each
platform.

Aside from that, this patch contains no functional change.  It
is purely a re-organization.

Patch by Marcos Pividori
Differential Revision: https://reviews.llvm.org/D27230

llvm-svn: 288264

llvm-svn: 288262

llvm-svn: 288261

llvm-svn: 288259

This preparation to remove SetVector.h dependency on SmallSet.h.

llvm-svn: 288256

llvm-svn: 288254

Summary:
When computing useful bits for a BFM instruction, we need
to take into consideration the case where both operands
of the BFM are equal and provide data that we need to track.

Not doing this can cause us to miss useful bits.
    
Fixes PR31138 (https://llvm.org/bugs/show_bug.cgi?id=31138)

Reviewers: t.p.northover, jmolloy

Subscribers: evandro, gberry, srhines, pirama, mcrosier, aemerson, llvm-commits, rengolin

Differential Revision: https://reviews.llvm.org/D27130

llvm-svn: 288253

This is the first part of an effort to add wasm binary
support across all llvm tools.

Patch by Sam Clegg

Differential Revision: https://reviews.llvm.org/D26172

llvm-svn: 288251

Initial support for target shuffle constant folding in cases where all shuffle inputs are constant. We may be able to relax this and merge shuffles with only some constant inputs in the future.

I've added the helper function getTargetConstantBitsFromNode (based off a similar function in X86ShuffleDecodeConstantPool.cpp) that could be reused for other cases requiring constant vector extraction.

Differential Revision: https://reviews.llvm.org/D27220

llvm-svn: 288250

This is the beginning of an effort to get libfuzzer working on
Windows.  This is a NFC to just add some macros for platform
detection on Windows.

Patch by Marcos Pividori
Differential Revision: https://reviews.llvm.org/D27229

llvm-svn: 288249

Summary: Further preparation for the expansion of MUL_LOHI added in D24956.

Reviewers: efriedma, RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D27064

llvm-svn: 288248

Summary:
The usage was previously guarded by HAVE_DLFCN. This breaks on Android with
LLVM_BUILD_STATIC as the platform does not provide a static version of libdl.
Using HAVE_DLOPEN fixes it as the code will only get used if we are actually able
to link an executable using dlopen.

Reviewers: rafael, beanz

Subscribers: tberghammer, danalbert, llvm-commits

Differential Revision: https://reviews.llvm.org/D26504

llvm-svn: 288246

llvm-svn: 288245

It is needed by LiveIntervalAnalysis.

llvm-svn: 288243

llvm-svn: 288242

[X86][SSE] Add tests demonstrating missed opportunities to combine 64-bit element unpacks with horizontal pair ops.

llvm-svn: 288240

No functionality change intended.

llvm-svn: 288235

llvm-svn: 288233

llvm-svn: 288232

This reverts commit r288210.

The failure on the stage2 LTO build is back.

llvm-svn: 288226

Storing these in the symbol table (with zero values) is just wasted space.

llvm-svn: 288225

This patch corresponds to review:
https://reviews.llvm.org/D26023

This patch adds support for converting a vector of loads into a single load if
the loads are consecutive (in either direction).

llvm-svn: 288219

This patch corresponds to review:
https://reviews.llvm.org/D25980

This is the 2nd patch in a series of 4 that improve the lowering and combining
for BUILD_VECTOR nodes on PowerPC. This particular patch combines a build vector
of fp-to-int conversions into an fp-to-int conversion of a build vector of fp
values. For example:
Converts (build_vector (fp_to_[su]i $A), (fp_to_[su]i $B), ...)
Into (fp_to_[su]i (build_vector $A, $B, ...))).
Which is a natural match for much cleaner code.

llvm-svn: 288218

llvm-svn: 288217

llvm-svn: 288216

Summary: Previously 0 and -1 was matched via tablegen rules. But this could cause problems where a physical register was being used where a virtual register was expected (seen in optimizeSelect and TwoAddressInstructionPass). Instead follow AArch64 and match in DAGToDAGISel.

Reviewers: eliben, majnemer

Subscribers: llvm-commits, aemerson

Differential Revision: https://reviews.llvm.org/D27171

llvm-svn: 288215

This commit caused some miscompiles that did not show up on any of the bots.
Reverting until we can investigate the cause of those failures.

llvm-svn: 288214

DWARF specifies that "line 0" really means "no appropriate source
location" in the line table.  Use this for branch targets and some
other cases that have no specified source location, to prevent
inheriting unfortunate line numbers from physically preceding
instructions (which might be from completely unrelated source).

Differential Revision: http://reviews.llvm.org/D24180

llvm-svn: 288212

[X86][AVX512VL] Improved testing of vcvtpd2ps, vcvtpd2dq/vcvtpd2udq and vcvttpd2dq/vcvttpd2udq implicit zeroing of upper 64-bits of xmm result

Ensure that masked instruction doesn't assume implicit zeroing.

llvm-svn: 288211

[recommiting patches one-by-one to see which breaks the stage2 LTO bot]

Follow-on patches will add more interesting cases.

The goal of this patch-set is to get the GVN messages printed in
opt-viewer from Dhrystone as was presented in my Dev Meeting talk.  This
is the optimization view for the function (the last remark in the
function has a bug which is fixed in this series):
http://lab.llvm.org:8080/artifacts/opt-view_test-suite/build/SingleSource/Benchmarks/Dhrystone/CMakeFiles/dry.dir/html/_org_test-suite_SingleSource_Benchmarks_Dhrystone_dry.c.html#L430

Differential Revision: https://reviews.llvm.org/D26488

llvm-svn: 288210

[X86][AVX512DQVL] Improved testing of vcvtqq2ps/vcvtuqq2ps implicit zeroing of upper 64-bits of xmm result

Ensure that masked instruction doesn't assume implicit zeroing.

llvm-svn: 288209

This target hook was added with D19087:
https://reviews.llvm.org/D19087

Differential Revision: https://reviews.llvm.org/D27221

llvm-svn: 288206

llvm-svn: 288205

Bitcode: Add a more comprehensive multi-module test now that we have both llvm-cat and llvm-modextract.

Differential Revision: https://reviews.llvm.org/D27189

llvm-svn: 288202

This program is for testing features that rely on multi-module bitcode files.
It takes a multi-module bitcode file, extracts one of the modules and writes
it to the output file.

Differential Revision: https://reviews.llvm.org/D26778

llvm-svn: 288201

Michel Dänzer reported that r288051, "[StructurizeCFG] Use range-based
for loops", introduced a bug into rebuildSSA, wherein we were iterating
over an instruction's use list while modifying it, without taking care
to do this correctly.

llvm-svn: 288200

In some cases the leading headers of the file name, archive member and
architecture slice name in the output of lvm-objdump is not wanted so the
tool’s output can be directly used by scripts.  This matches the -X option
of the Apple otool(1) program.

rdar://28491674

llvm-svn: 288199