Alexey Volkov 1bd30dce7b [X86] Limit maximum nop length on Silvermont ...

Silvermont can only decode one instruction per cycle if the instruction exceeds 8 bytes.
Also in Silvermont instructions with more than 3 prefixes will cause 3 cycle penalty.
Maximum nop length is limited to 7 bytes when used for padding on Silvermont.
For other x86 processors max nop length remains unchanged 15 bytes.

Differential Revision: http://reviews.llvm.org/D4374


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212321 91177308-0d34-0410-b5e6-96231b3b80d8

2014-07-04 07:14:56 +00:00

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Analysis

[CostModel][x86] Improved cost model for alternate shuffles.

2014-07-03 22:24:18 +00:00

Assembler

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Bindings

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Bitcode

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BugPoint

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CodeGen

XCore target: remove incorrect DebugLoc entries from prologue

2014-07-04 06:38:22 +00:00

DebugInfo

Temporarily revert "Don't try to construct debug LexicalScopes hierarchy for functions that do not have top level debug information." as it appears to be breaking some LTO constructs.

2014-07-03 22:24:54 +00:00

ExecutionEngine

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Feature

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FileCheck

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Instrumentation

[msan] Stop propagating shadow in blacklisted functions.

2014-07-03 11:56:30 +00:00

Integer

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JitListener

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Linker

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LTO

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MC

[X86] Limit maximum nop length on Silvermont

2014-07-04 07:14:56 +00:00

Object

Add the -just-symbol-name (aka -j) flag to llvm-nm to just print the

2014-07-03 21:51:07 +00:00

Other

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TableGen

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tools

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Transforms

InstSimplify: Fix a bug when INT_MIN is in a sdiv

2014-07-04 00:23:39 +00:00

Unit

Let test/Unit/lit.cfg add config.shlibdir to $PATH on DLL platforms like cygming.

2014-07-04 05:11:55 +00:00

Verifier

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YAMLParser

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.clang-format

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CMakeLists.txt

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lit.cfg

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lit.site.cfg.in

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Makefile

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Makefile.tests

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TestRunner.sh

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