Jakob Stoklund Olesen 795f951c6d Fix coalescing with IMPLICIT_DEF values. ...

PHIElimination inserts IMPLICIT_DEF instructions to guarantee that all
PHI predecessors have a live-out value. These IMPLICIT_DEF values are
not considered to be real interference when coalescing virtual
registers:

  %vreg1 = IMPLICIT_DEF
  %vreg2 = MOV32r0

When joining %vreg1 and %vreg2, the IMPLICIT_DEF instruction and its
value number should simply be erased since the %vreg2 value number now
provides a live-out value for the PHI predecesor block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165813 91177308-0d34-0410-b5e6-96231b3b80d8

2012-10-12 18:03:04 +00:00

..

Analysis

fix warning

2012-10-12 02:04:32 +00:00

Archive

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AsmParser

Don't crash if a .ll file contains a forward-reference that looks like a global

2012-10-11 00:38:25 +00:00

Bitcode

Remove unnecessary classof()'s

2012-10-11 23:30:49 +00:00

CodeGen

Fix coalescing with IMPLICIT_DEF values.

2012-10-12 18:03:04 +00:00

DebugInfo

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ExecutionEngine

Indenting.

2012-10-12 02:04:47 +00:00

Linker

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MC

Whitespace.

2012-10-09 20:15:02 +00:00

Object

Cosmetic changes

2012-10-10 01:45:52 +00:00

Support

Add powerpc-ibm-aix to Triple. Patch by Kai.

2012-10-12 11:08:57 +00:00

TableGen

tblgen: Compile TableGen without RTTI.

2012-10-10 20:27:18 +00:00

Target

Div, Rem int/unsigned int

2012-10-12 02:01:09 +00:00

Transforms

PGO: create metadata for switch only if it has more than one targets.

2012-10-11 22:28:34 +00:00

VMCore

Add the LLVM context to this c'tor. It will be needed in the future.

2012-10-11 01:10:00 +00:00

CMakeLists.txt

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LLVMBuild.txt

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Makefile

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