Since this now emits a direct copy to m0, SIFixSGPRCopies has to
handle a physical register.

llvm-svn: 367593

This allows folding of the scalar epilogue loop (the tail) into the main
vectorised loop body when the loop is annotated with a "vector predicate"
metadata hint. To fold the tail, instructions need to be predicated (masked),
enabling/disabling lanes for the remainder iterations.

Differential Revision: https://reviews.llvm.org/D65197

llvm-svn: 367592

AMDGPU testcase isn't broken now, but will be in a future patch
without this.

llvm-svn: 367591

A TYPE_INDEX operand (as used by call_indirect) used to be represented
by the InstPrinter as a symbol (e.g. .Ltype_index0@TYPE_INDEX) which
was a bit of a mismatch with the WasmObjectWriter which expects an
unnamed symbol, to receive the signature from and then turn into a
reloc.

There was really no good way to round-trip this information. An earlier
version of this patch tried to attach the signature information using
a .functype, but that ran into trouble when the symbol was re-emitted
without a name. Removing the name was a giant hack also.

The current version changes the assembly syntax to have an inline
signature spec for TYPEINDEX operands that is always unnamed, which
is much more elegant both in syntax and in implementation (as now the
assembler is able to follow the same path as the regular backend)

Reviewers: sbc100, dschuff, aheejin, jgravelle-google, sunfish, tlively

Subscribers: arphaman, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D64758

llvm-svn: 367590

llvm-svn: 367589

Allow us to peek through vector insertions to avoid dependencies on entire insertion chains.

llvm-svn: 367588

llvm-svn: 367587

llvm-svn: 367586

llvm-svn: 367585

llvm-svn: 367584

llvm-svn: 367583

We should probably extend this to cover bitcasts as well to help other cases in promote-vec3.ll.

llvm-svn: 367582

User of AAReturnedValues need to know if HasOverdefinedReturnedCalls
changed from false to true as it will impact the result of the return
value traversal (calls are not ignored anymore).

This will be tested with the tests in D59978.

llvm-svn: 367581

If an operand of the `lw/sw` instructions is a symbol, these instructions
incorrectly lowered using not-position-independent chain of commands.
For PIC code we should use `lw/addiu` instructions with the `R_MIPS_GOT16`
and `R_MIPS_LO16` relocations respectively. Instead of that LLVM generates
position dependent code with the `R_MIPS_HI16` and `R_MIPS_LO16`
relocations.

This patch provides a fix for the bug by handling PIC case separately in
the `MipsAsmParser::expandMemInst`. The main idea is to generate a chain
of PIC instructions to load a symbol address into a register and then
load the address content.

The fix is not optimal and does not fix all PIC-related problems. This
is a task for subsequent patches.

Differential Revision: https://reviews.llvm.org/D65524

llvm-svn: 367580

More coverage for the proposal in D65576.

llvm-svn: 367579

- Add LC_SEGMENT_64 handling in getSectionsAndSymbols to be able to find the base segment address from 64-bit Mach-O binaries.
- Add "data in code" detection into the !symbolTableWorked case, extract it into a separate function.
- Fix uninitialized variable usage on BaseSegmentAddress (initialize to 0).
- Add test.

Differential Revision: https://reviews.llvm.org/D65491

llvm-svn: 367578

More coverage for the proposal in D65576.

llvm-svn: 367577

Adds a method which, when called with function.getArg(i), returns an
Argument* to the i'th argument.

Patch by Henry Wildermuth

Differential Revision: https://reviews.llvm.org/D64925

llvm-svn: 367576

Previously pragma annotation tokens were described as any other
annotations in TokenKinds.def. This change introduces special macro
PRAGMA_ANNOTATION for the pragma descriptions. It allows implementing
checks that deal with pragma annotations only.

Differential Revision: https://reviews.llvm.org/D65405

llvm-svn: 367575

clang/test/lit.cfg.py doesn't list .cc as test extension, so these
tests never ran.

Tweak one of the two tests to actually pass, now that it runs.
(The other one was already passing.)

llvm-svn: 367574

This test was frequently hanging on Windows, causing a timeout after
10 minutes.  The short delay (100 microsecond) in the sample program
could cause a deadlock in the Windows thread pool, as I've explained
in the test program's comments.

Now that it doesn't hang, it passes reliably, so I've removed the
Windows-specific XFAIL.

I've tried to clarify the comments in TestThreadSpecificGBreakpoint.py
by eliminating some redundancy and typos, and I simplified away a
couple unnecessary assignments.

Differential Revision: https://reviews.llvm.org/D65546

llvm-svn: 367573

llvm-svn: 367572

This adds SimplifyMultipleUseDemandedBitsForTargetNode X86 support and uses it to allow us to peek through vector insertions to avoid dependencies on entire insertion chains.

llvm-svn: 367570

Like r367463, but for scudo/standalone/tests.

With this, all files in compiler-rt/lib have extension cpp.

llvm-svn: 367569

Like r367463, but for scudo/standalone.

llvm-svn: 367568

Like r367463, but for tsan/{benchmarks,dd,go}.

The files benchmarks aren't referenced in the build anywhere and where added
in 2012 with the comment "no Makefiles yet".

llvm-svn: 367567

Like r367463, but for tsan/tests/{rtl,unit}.

llvm-svn: 367566

Reviewers: asb

Reviewed By: asb

Subscribers: lenary, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, zzheng, edward-jones, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, lebedev.ri, kito-cheng, shiva0217, rogfer01, dexonsmith, rkruppe, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D63497

Patch by Andreas Schwab (schwab)

llvm-svn: 367565

Like r367463, but for tsan/rtl.

llvm-svn: 367564

Like r367463, but for msan/tests.

llvm-svn: 367563

Like r367463, but for msan.

llvm-svn: 367562

Like r367463, but for lsan.

llvm-svn: 367561

Like r367463, but for interception/tests and safestack.

llvm-svn: 367560

Like r367463, but for asan/tests

llvm-svn: 367559

Like r367463, but for asan.

llvm-svn: 367558

Reviewers: asb

Reviewed By: asb

Subscribers: simoncook, s.egerton, lenary, psnobl, benna, mhorne, emaste, kito-cheng, shiva0217, rogfer01, rkruppe, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D57795

Patch by James Clarke (jrtc27)

llvm-svn: 367557

llvm-svn: 367556

llvm-svn: 367555

It is used by SymbolFile/DWARF/debug-types-dwo-cross-reference.cpp

llvm-svn: 367554

Summary:
GCC Accepts both (reg) and 0(reg) for atomic instruction memory
operands. These instructions do not allow for an offset in their
encoding, so in the latter case, the 0 is silently dropped.

Due to how we have structured the RISCVAsmParser, the easiest way to add
support for parsing this offset is to add a custom AsmOperand and
parser. This parser drops all the parens, and just keeps the register.

This commit also adds a custom printer for these operands, which matches
the GCC canonical printer, printing both `(a0)` and `0(a0)` as `(a0)`.

Reviewers: asb, lewis-revill

Reviewed By: asb

Subscribers: s.egerton, hiraditya, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, kito-cheng, shiva0217, jrtc27, MaskRay, zzheng, edward-jones, rogfer01, MartinMosbeck, brucehoult, the_o, rkruppe, jfb, PkmX, jocewei, psnobl, benna, Jim, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65205

llvm-svn: 367553