Chris Lattner 01a2202138 Add support for CombineTo, allowing the dag combiner to replace nodes with ...

multiple results.

Use this support to implement trivial store->load forwarding, implementing
CodeGen/PowerPC/store-load-fwd.ll.  Though this is the most simple case and
can be extended in the future, it is still useful.  For example, it speeds
up 197.parser by 6.2% by avoiding an LSU reject in xalloc:

        stw r6, lo16(l5_end_of_array)(r2)
        addi r2, r5, -4
        stwx r5, r4, r2
-       lwzx r5, r4, r2
-       rlwinm r5, r5, 0, 0, 30
        stwx r5, r4, r2
        lwz r2, -4(r4)
        ori r2, r2, 1


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23690 91177308-0d34-0410-b5e6-96231b3b80d8

2005-10-10 22:04:48 +00:00

..

SelectionDAG

Add support for CombineTo, allowing the dag combiner to replace nodes with

2005-10-10 22:04:48 +00:00

AsmPrinter.cpp

Culling out use of unions for converting FP to bits and vice versa.

2005-08-17 19:34:49 +00:00

BranchFolding.cpp

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ELFWriter.cpp

Fix VC++ constant truncation warning.

2005-08-19 16:19:21 +00:00

IntrinsicLowering.cpp

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LiveInterval.cpp

Expose the LiveInterval interfaces as public headers.

2005-09-21 04:19:09 +00:00

LiveIntervalAnalysis.cpp

Expose the LiveInterval interfaces as public headers.

2005-09-21 04:19:09 +00:00

LiveVariables.cpp

Implement LiveVariables.h change

2005-08-24 00:09:33 +00:00

MachineBasicBlock.cpp

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MachineCodeEmitter.cpp

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MachineFunction.cpp

If a function has live ins/outs, print them

2005-08-31 22:34:59 +00:00

MachineInstr.cpp

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Makefile

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Passes.cpp

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PHIElimination.cpp

clean up this code a bit, no functionality change

2005-10-03 07:22:07 +00:00

PhysRegTracker.h

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PrologEpilogInserter.cpp

now that we have a reg class to spill with, get this info from the regclass

2005-09-30 17:19:22 +00:00

RegAllocIterativeScan.cpp

Expose the LiveInterval interfaces as public headers.

2005-09-21 04:19:09 +00:00

RegAllocLinearScan.cpp

Expose the LiveInterval interfaces as public headers.

2005-09-21 04:19:09 +00:00

RegAllocLocal.cpp

Change this code ot pass register classes into the stack slot spiller/reloader

2005-09-30 01:29:00 +00:00

RegAllocSimple.cpp

Change this code ot pass register classes into the stack slot spiller/reloader

2005-09-30 01:29:00 +00:00

TwoAddressInstructionPass.cpp

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UnreachableBlockElim.cpp

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VirtRegMap.cpp

Fix the LLC regressions on X86 last night. In particular, when undoing

2005-10-06 17:19:06 +00:00

VirtRegMap.h

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