Dan Gohman c17e0cf6c0 Implement "superhero" strength reduction, or full strength ... reduction of address calculations down to basic pointer arithmetic. This is currently off by default, as it needs a few other features before it becomes generally useful. And even when enabled, full strength reduction is only performed when it doesn't increase register pressure, and when several other conditions are true. This also factors out a bunch of exisiting LSR code out of StrengthReduceStridedIVUsers into separate functions, and tidies up IV insertion. This actually decreases register pressure even in non-superhero mode. The change in iv-users-in-other-loops.ll is an example of this; there are two more adds because there are two fewer leas, and there is less spilling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65108 91177308-0d34-0410-b5e6-96231b3b80d8		2009-02-20 04:17:46 +00:00
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Archive
Assembler	add proper asmwriter and asmparser support for anonymous functions.	2009-02-18 21:48:13 +00:00
Bindings/Ocaml
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BugPoint
CodeGen	Implement "superhero" strength reduction, or full strength	2009-02-20 04:17:46 +00:00
DebugInfo	The subprogram die may not exist while creating "default" scope.	2009-02-18 17:29:38 +00:00
ExecutionEngine
Feature
FrontendAda
FrontendC	Emit debug info for bitfields.	2009-02-17 21:23:59 +00:00
FrontendC++	Temporarily XFAIL this test.	2009-02-19 00:13:55 +00:00
FrontendFortran
FrontendObjC	And now, not so elegant, test case...	2009-02-17 22:48:18 +00:00
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Transforms	Implement "superhero" strength reduction, or full strength	2009-02-20 04:17:46 +00:00
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