Stanislav Mekhanoshin 27d61cd13b Fix regalloc assignment of overlapping registers ...

SplitEditor::defFromParent() can create a register copy.
If register is a tuple of other registers and not all lanes are used
a copy will be done on a full tuple regardless. Later register unit
for an unused lane will be considered free and another overlapping
register tuple can be assigned to a different value even though first
register is live at that point. That is because interference only look at
liveness info, while full register copy clobbers all lanes, even unused.

This patch fixes copy to only cover used lanes.

Differential Revision: https://reviews.llvm.org/D29105

llvm-svn: 293728

2017-02-01 01:18:36 +00:00

..

Analysis

[SCEV] Simplify/generalize howFarToZero solving.

2017-01-31 00:42:42 +00:00

AsmParser

ASMParser: use range-based for loops (NFC)

2016-12-27 18:35:22 +00:00

Bitcode

Cleanup dump() functions.

2017-01-28 02:02:38 +00:00

CodeGen

Fix regalloc assignment of overlapping registers

2017-02-01 01:18:36 +00:00

DebugInfo

Add a verbose/human readable mode to llvm-symbolizer to investigate discriminators and other line table/backtrace features

2017-01-31 22:19:38 +00:00

Demangle

Add support for demangling C++11 thread_local variables.

2017-01-31 15:56:36 +00:00

ExecutionEngine

RuntimeDyldELF: Don't abort on R_X86_64_NONE, it's a no-oop.

2017-01-28 18:39:01 +00:00

Fuzzer

[libFuzzer] increase the default size for shmem

2017-02-01 00:07:47 +00:00

IR

Include LLVMDumpValue in release builds.

2017-01-30 05:40:52 +00:00

IRReader

Timer: Track name and description.

2016-11-18 19:43:18 +00:00

LibDriver

LibDriver: Allow resource files to be archive members.

2016-12-15 19:37:46 +00:00

LineEditor

…

Linker

[ThinLTO] Import only necessary DICompileUnit fields

2016-12-12 16:09:30 +00:00

LTO

[LTO] Teach lib/LTO about the new pass manager.

2017-01-24 00:58:24 +00:00

MC

Move more code to helper functions. NFC.

2017-01-31 23:26:32 +00:00

Object

[WebAssembly] Add wasm support for llvm-readobj

2017-01-30 23:30:52 +00:00

ObjectYAML

Make this file clang-format friendly and clang-format it.

2017-01-31 21:11:12 +00:00

Option

Cleanup dump() functions.

2017-01-28 02:02:38 +00:00

Passes

[PM] Port LoopLoadElimination to the new pass manager and wire it into

2017-01-27 01:32:26 +00:00

ProfileData

Cleanup dump() functions.

2017-01-28 02:02:38 +00:00

Support

[Support] Add newline when dumping an APInt.

2017-01-31 21:26:18 +00:00

TableGen

Use print() instead of dump() in code

2017-01-28 02:47:46 +00:00

Target

AMDGPU: Cleanup fmin/fmax legacy function

2017-02-01 00:42:40 +00:00

Transforms

[IPSCCP] Teach how to not propagate return values of naked functions.

2017-02-01 01:01:22 +00:00

XRay

[XRay] Define the InstrumentationMap type

2017-02-01 00:05:29 +00:00

CMakeLists.txt

[XRay] Define the library for XRay trace logs

2017-01-11 06:39:09 +00:00

LLVMBuild.txt

Add an c++ itanium demangler to llvm.

2016-09-06 19:16:48 +00:00