llvm-svn: 287290

llvm-svn: 287289

llvm-svn: 287277

llvm-svn: 287276

llvm-svn: 287273

lld on Darwin does not currently support LTO.

Differential Revision: https://reviews.llvm.org/D26715

llvm-svn: 287256

Identified by Pedro Giffuni in PR27636.

llvm-svn: 287248

Identified by Pedro Giffuni in PR27636.

llvm-svn: 287247

[CodeView] Fix some Clang-tidy modernize-use-default, modernize-use-override and Include What You Use warnings; other minor fixes (NFC).

Per Zachary Turner and Mehdi Amini suggestion to make only post-commit reviews.

llvm-svn: 287243

llvm-svn: 287240

This patch turns on the metadata liveness tracking since all known issues
have been resolved. The future has been implemented in
https://reviews.llvm.org/D16737 and enables support of dead code stripping
option on Mach-O platforms.

As part of enabling the feature, I also plan on reverting the following
patch to compiler-rt:

http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20160704/369910.html

Differential Revision: https://reviews.llvm.org/D26772

llvm-svn: 287235

This reverts commit r287146.

This breaks few conformance tests.

llvm-svn: 287233

Summary:
CompareSCEVComplexity goes too deep (50+ on a quite a big unrolled loop) and runs almost infinite time.

Added cache of "equal" SCEV pairs to earlier cutoff of further estimation. Recursion depth limit was also introduced as a parameter.

Reviewers: sanjoy

Subscribers: mzolotukhin, tstellarAMD, llvm-commits

Differential Revision: https://reviews.llvm.org/D26389

llvm-svn: 287232

llvm-svn: 287224

vXi64 multiplication is lowered into 3 calls of vpmuludq with the upper/lower 32-bit halves.

If any of these halves are zero then we can remove individual calls. Although there was isBuildVectorAllZeros code to do this I don't think it ever worked (maybe just for constant folded cases that don't seem to be tested for any longer).

This requires additional X86ISD support for computeKnownBitsForTargetNode, so far I've just added support for X86ISD::VZEXT (VPMOVZX* - helping the AVX2+ cases).

Partial fix for PR30845

Differential Revision: https://reviews.llvm.org/D26590

llvm-svn: 287223

llvm-svn: 287222

Summary:
The motivation for this is to enable correct detection of dlopen() on Android.
Android does not provide a static version of libdl, so if we add the -static flag
after performing the check, it will succeed even though subsequent link steps
will fail. With this change we correctly detect the absence of libdl in a
LLVM_BUILD_STATIC build on Android.

The link itself still does not succeed because the code does not check the result
of this check properly, but I plan to fix that in a separate change.

Reviewers: beanz

Subscribers: danalbert, mgorny, srhines, tberghammer, llvm-commits

Differential Revision: https://reviews.llvm.org/D26463

llvm-svn: 287220

Summary:
Variadic functions can be treated in the same way as normal functions
with respect to the number and types of parameters.

Reviewers: grosbach, olista01, t.p.northover, rengolin

Subscribers: javed.absar, aemerson, llvm-commits

Differential Revision: https://reviews.llvm.org/D26748

llvm-svn: 287219

Register Calling Convention defines a new behavior for v64i1 types.
This type should be saved in GPR.
However for 32 bit machine we need to split the value into 2 GPRs (because each is 32 bit).

Differential Revision: https://reviews.llvm.org/D26181

llvm-svn: 287217

llvm-svn: 287214

ImplicitNullCheck keeps track of one instruction that the memory
operation depends on that it also hoists with the memory operation.
When hoisting this dependency, it would sometimes clobber a live-in
value to the basic block we were hoisting the two things out of.  Fix
this by explicitly looking for such dependencies.

I also noticed two redundant checks on `MO.isDef()` in IsMIOperandSafe.
They're redundant since register MachineOperands are either Defs or Uses
-- there is no third kind.  I'll change the checks to asserts in a later
commit.

llvm-svn: 287213

llvm-svn: 287211

llvm-svn: 287210

This patch adds XRay support in LLVM for AArch64 targets.
This patch is one of a series:

Clang: https://reviews.llvm.org/D26415
compiler-rt: https://reviews.llvm.org/D26413

Author: rSerge

Reviewers: rengolin, dberris

Subscribers: amehsan, aemerson, llvm-commits, iid_iunknown

Differential Revision: https://reviews.llvm.org/D26412

llvm-svn: 287209

This patch adds an option to the build system LLVM_DEPENDENCY_DEBUGGING. Over time I plan to extend this to do more complex verifications, but the initial patch causes compile errors wherever there is missing a dependency on intrinsics_gen.

Because intrinsics_gen is a compile-time dependency not a link-time dependency, everything that relies on the headers generated in intrinsics_gen needs an explicit dependency.

llvm-svn: 287207

This patch updates a bunch of places where add_dependencies was being explicitly called to add dependencies on intrinsics_gen to instead use the DEPENDS named parameter. This cleanup is needed for a patch I'm working on to add a dependency debugging mode to the build system.

llvm-svn: 287206

llvm-svn: 287204

llvm-svn: 287203

llvm-svn: 287201

Differential Revision: https://reviews.llvm.org/D26732

llvm-svn: 287199

llvm-svn: 287195

Summary:
For flat loop, even if it is hot, it is not a good idea to unroll in runtime, thus we set a lower partial unroll threshold.
For hot loop, we set a higher unroll threshold and allows expensive tripcount computation to allow more aggressive unrolling.

Reviewers: davidxl, mzolotukhin

Subscribers: sanjoy, mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D26527

llvm-svn: 287186

The last remaining necessary change was D25403, landed as r287012.

llvm-svn: 287184

llvm-svn: 287183

llvm-svn: 287182

This is a remnant of an on-chip unit testing tool that has since been
moved out-of-tree.

It was accidentally committed in r287162.

llvm-svn: 287180

This pass splits globals into elements using inrange annotations on
getelementptr indices.

Differential Revision: https://reviews.llvm.org/D22295

llvm-svn: 287178

The '-fpermissive' compiler flag complains if the template
specializations used in the class are used in a different namespace.

llvm-svn: 287176

The branch selector would change the names.

llvm-svn: 287174

llvm-svn: 287173