Evan Cheng 1ad0e8b576 Canonicalize -1 - x to ~x. ...

Instcombine does this but apparently there are situations where this pattern will escape the optimizer and / or created by isel. Here is a case that's seen in JavaScriptCore:
  %t1 = sub i32 0, %a
  %t2 = add i32 %t1, -1
The dag combiner pattern: ((c1-A)+c2) -> (c1+c2)-A
will fold it to -1 - %a.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93773 91177308-0d34-0410-b5e6-96231b3b80d8

2010-01-18 21:38:44 +00:00

..

Analysis

Make findDbgDeclare/findDbgGlobalDeclare local static functions; avoid Elts array

2010-01-18 20:42:09 +00:00

Archive

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AsmParser

Remove the InlineHint attribute. There are no current or planned

2010-01-15 21:36:30 +00:00

Bitcode

Simplify code that chooses when to enumerate function-local metadata operands

2010-01-14 19:54:11 +00:00

CodeGen

Canonicalize -1 - x to ~x.

2010-01-18 21:38:44 +00:00

CompilerDriver

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ExecutionEngine

Replace DebugLocTuple with DILocation.

2010-01-16 06:09:35 +00:00

Linker

Fixed linking of modules containing aliases to constant bitcasts. Existing behaviour first tried to replace the aliases with the global that they aliased (rather than the bitcast), causing a crash on an assert because the types didn't match. When this was fixed, it then did the same thing creating the new alias (creating an alias with a different type to its aliasee).

2010-01-09 16:27:31 +00:00

MC

remove the MAI argument to MCExpr::print and switch overthing to use << when printing them.

2010-01-18 00:37:40 +00:00

Support

Fix refacto reported by Nicolas Geoffray.

2010-01-18 12:40:05 +00:00

System

Remove spurious semicolon.

2010-01-14 20:19:51 +00:00

Target

The most significant encoding bit of GPR:$src or GPR:$dst was over-specified in

2010-01-18 20:15:56 +00:00

Transforms

While mapping llvm.dbg.declare intrinsic manually map its operand, if possible,

2010-01-18 19:52:14 +00:00

VMCore

Simplify MDNode::getFunction() and assertLocalFunction() by avoiding extra Function* variable and smallptrset since function-local metadata cannot be cyclic

2010-01-18 20:36:54 +00:00

Makefile

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