Tim Northover 15983b80a0 X86: use sub-register sequences for MOV*r0 operations ...

Instead of having a bunch of separate MOV8r0, MOV16r0, ... pseudo-instructions,
it's better to use a single MOV32r0 (which will expand to "xorl %reg, %reg")
and obtain other sizes with EXTRACT_SUBREG and SUBREG_TO_REG. The encoding is
smaller and partial register updates can sometimes be avoided.

Until recently, this sequence was a barrier to rematerialization though. That
should now be fixed so it's an appropriate time to make the change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182928 91177308-0d34-0410-b5e6-96231b3b80d8

2013-05-30 13:19:42 +00:00

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Analysis

Add support for llvm.vectorizer metadata

2013-05-28 20:00:34 +00:00

Archive

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AsmParser

Add a new function attribute 'cold' to functions.

2013-05-24 12:26:52 +00:00

Bitcode

Remove the Copied parameter from MemoryObject::readBytes.

2013-05-24 10:54:58 +00:00

CodeGen

Fix rematerialization into physical registers.

2013-05-30 12:30:50 +00:00

DebugInfo

Change how we iterate over relocations on ELF.

2013-05-30 03:05:14 +00:00

ExecutionEngine

Change how we iterate over relocations on ELF.

2013-05-30 03:05:14 +00:00

IR

Simplify logic by using the appropriate functions.

2013-05-29 17:33:31 +00:00

IRReader

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Linker

Extend RemapInstruction and friends to take an optional new parameter, a ValueMaterializer.

2013-05-28 15:17:05 +00:00

MC

Change how we iterate over relocations on ELF.

2013-05-30 03:05:14 +00:00

Object

Change how we iterate over relocations on ELF.

2013-05-30 03:05:14 +00:00

Option

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Support

[APInt] Implement tcDecrement as a counterpart to tcIncrement. This is for use in APFloat IEEE-754R 2008 nextUp/nextDown function.

2013-05-28 19:50:20 +00:00

TableGen

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Target

X86: use sub-register sequences for MOV*r0 operations

2013-05-30 13:19:42 +00:00

Transforms

Revert r182909.

2013-05-30 09:40:17 +00:00

CMakeLists.txt

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LLVMBuild.txt

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Makefile

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