This is possible if there is an undef use when
splitting the vreg during spilling.

Fixes bug 33620.

llvm-svn: 308808

This reverts commit 2f423248e140b94b8377660d4d2fe9364f30febe.

llvm-svn: 308806

As discussed on llvm-dev I've implemented the first basic steps towards
llvm-objcopy/llvm-objtool (name pending).

This change adds the ability to copy (without modification) 64-bit
little endian ELF executables that have SHT_PROGBITS, SHT_NOBITS,
SHT_NULL and SHT_STRTAB sections.

Patch by Jake Ehrlich

Differential Revision: https://reviews.llvm.org/D33964

llvm-svn: 308803

Bitrig code has been merged back to OpenBSD, thus the OS has been abandoned.

Differential Revision: https://reviews.llvm.org/D35707

llvm-svn: 308799

As discussed on [1], if the profile is compressed and llvm-profdata is not built with zlib support, the error message is not informative. Give a better error message if zlib is not available.

[1] http://lists.llvm.org/pipermail/llvm-dev/2017-July/115571.html

Reviewers: davidxl, dblaikie

Differential Revision: https://reviews.llvm.org/D35586

llvm-svn: 308789

[Analysis] Fix some Clang-tidy modernize and  Include What You Use warnings; other minor fixes (NFC).

llvm-svn: 308787

llvm-svn: 308785

Reviewers: DavidKreitzer

Differential Revision: https://reviews.llvm.org/D35638

llvm-svn: 308784

llvm-svn: 308781

MIR SRADI uses instruction template XSForm_1rc which declares Defs = [CARRY]. But MIR SRADI_32 uses instruction template XSForm_1, and it doesn't declare such implicit definition. With patch D33720 it causes wrong code generation for perl.

This patch adds the implicit definition.

Differential Revision: https://reviews.llvm.org/D35699

llvm-svn: 308780

Testing is in the follow up change

llvm-svn: 308779

Fixes verifier errors in some call tests.
Not sure why we haven't run into this before.

Test split into separate patch for once
call support is committed.

llvm-svn: 308774

llvm-svn: 308772

There are 2 more places doing this, but I'm not sure
what they are doing and don't make any sense to me

llvm-svn: 308770

llvm-svn: 308766

llvm-svn: 308765

This includes the hash table, the address map, and the thunk table and
section offset table. The last two are only used for incremental
linking, which LLD doesn't support, so they are less interesting. The
hash table is particularly important to get right, since this is the one
of the streams that debuggers use to translate addresses to symbols.

llvm-svn: 308764

llvm-svn: 308762

For example
  asm ("memw(%0++%1) = %2" : : "r"(addr),"a"(mod),"r"(val) : "memory")

llvm-svn: 308761

Summary: Currently the ThinLTO minimized bitcode file only strip the debug info, but there is still a lot of information in the minimized bit code file that will be not used for thin linker. In this patch, most of the extra information is striped to reduce the minimized bitcode file. Now only ModuleVersion, ModuleInfo, ModuleGlobalValueSummary, ModuleHash, Symtab and Strtab are left. Now the minimized bitcode file size is reduced to 15%-30% of the debug info stripped bitcode file size.

Reviewers: danielcdh, tejohnson, pcc

Reviewed By: pcc

Subscribers: mehdi_amini, aprantl, inglorion, eraman, llvm-commits

Differential Revision: https://reviews.llvm.org/D35334

llvm-svn: 308760

-membedded-data changes the location of constant data from the .sdata to
the .rodata section. Previously it was (incorrectly) always located in the
.rodata section.

Reviewers: atanasyan

Differential Revision: https://reviews.llvm.org/D35686

llvm-svn: 308758

llvm-svn: 308757

llvm-svn: 308756

llvm-svn: 308755

Separated out the profitability from the safety analysis for multiexit
loop unrolling. Currently, this is an NFC because profitability is true
only if the unroll-runtime-multi-exit is set to true (off-by-default).

This is to ease adding the profitability heuristic up for review at
D35380.

llvm-svn: 308753

llvm-svn: 308750

Omit atomics for now since they probably aren't useful.

llvm-svn: 308747

llvm-svn: 308745

Follow up to r306280 in Clang.
Enable IAS by default for Android MIPS64 (uses N64 ABI).

Differential Revision: https://reviews.llvm.org/D35482

llvm-svn: 308742

See bug 33591: https://bugs.llvm.org//show_bug.cgi?id=33591

Reviewers: vpykhtin, artem.tamazov, SamWot, arsenm

Differential Revision: https://reviews.llvm.org/D35424

llvm-svn: 308740

llvm-svn: 308739

test/CodeGen/SystemZ/loop-01.ll was incorrectly updated by r308729.

llvm-svn: 308736

This patch makes LSR generate better code for SystemZ in the cases of memory
intrinsics, Load->Store pairs or comparison of immediate with memory.

In order to achieve this, the following common code changes were made:

 * New TTI hook: LSRWithInstrQueries(), which defaults to false. Controls if
 LSR should do instruction-based addressing evaluations by calling
 isLegalAddressingMode() with the Instruction pointers.
 * In LoopStrengthReduce: handle address operands of memset, memmove and memcpy
 as address uses, and call isFoldableMemAccessOffset() for any LSRUse::Address,
 not just loads or stores.

SystemZ changes:

 * isLSRCostLess() implemented with Insns first, and without ImmCost.
 * New function supportedAddressingMode() that is a helper for TTI methods
 looking at Instructions passed via pointers.

Review: Ulrich Weigand, Quentin Colombet
https://reviews.llvm.org/D35262
https://reviews.llvm.org/D35049

llvm-svn: 308729

We should be able to handle the case where some c1+c2 elements exceed max shift and some don't by performing a clamp after the sum

llvm-svn: 308724

Currently we only support (i32 bitcast(v32i1)) using the AVX2 VPMOVMSKB ymm instruction.

This patch adds support for splitting pre-AVX2 targets into 2 x (V)PMOVMSKB xmm instructions and merging the integer results.

In future we could probably generalize this to handle more cases.

Differential Revision: https://reviews.llvm.org/D35303

llvm-svn: 308723

llvm-svn: 308712

llvm-svn: 308711

This patch teaches dsymutil to strip types from the imported
DW_TAG_module inside of an object file (not inside the PCM) if they
can be resolved to the full definition inside the PCM. This reduces
the size of the .dSYM from WebCore from webkit.org by almost 2/3.

<rdar://problem/33047213>

llvm-svn: 308710

This corrects a (hopefully :-) accidental side-effect of r304020.

rdar://problem/33442618

llvm-svn: 308708

[DWARF] Generalized verification of .debug_abbrev to be applicable to both .debug_abbrev and .debug_abbrev.dwo sections.

Differential Revision: https://reviews.llvm.org/D35698

llvm-svn: 308703