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llvm-6502/test/Transforms
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Chris Lattner 199ba42cbf Implement a new optimization in the inliner: if inlining multiple 
calls into a function and if the calls bring in arrays, try to merge
them together to reduce stack size.  For example, in the testcase
we'd previously end up with 4 allocas, now we end up with 2 allocas.

As described in the comments, this is not really the ideal solution
to this problem, but it is surprisingly effective.  For example, on
176.gcc, we end up eliminating 67 arrays at "gccas" time and another
24 at "llvm-ld" time.

One piece of concern that I didn't look into: at -O0 -g with
forced inlining this will almost certainly result in worse debug
info.  I think this is acceptable though given that this is a case
of "debugging optimized code", and we don't want debug info to
prevent the optimizer from doing things anyway.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80215 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 06:29:33 +00:00
..
ADCE Allow readonly functions to unwind exceptions. Teach 2009-05-06 06:49:50 +00:00
ArgumentPromotion Fix typo. 2009-04-23 04:24:19 +00:00
BlockPlacement Rationalize the names of passes that print information: 2008-09-23 12:47:39 +00:00
BranchFolding
CodeExtractor sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
CodeGenPrepare reenable test 2008-11-24 21:27:20 +00:00
CondProp Optimize conditional branch on i1 phis with non-constant inputs. 2009-04-14 23:40:03 +00:00
ConstantMerge sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
ConstProp Remove the vicmp and vfcmp instructions. Because we never had a release with 2009-07-08 03:04:38 +00:00
DeadArgElim aha, DAE does have to think about PHI nodes. Many thanks to "Dr Evil" (aka Duncan) 2009-03-18 16:48:45 +00:00
DeadStoreElimination Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
FunctionAttrs Revert r70876 and add a testcase (@c7) showing the problem: 2009-05-07 18:08:34 +00:00
GlobalDCE Add a new "available_externally" linkage type. This is intended 2009-04-13 05:44:34 +00:00
GlobalOpt Fix a bug that caused globalopt to miscompile tramp3d: don't miss 2009-08-18 14:58:19 +00:00
GVN Move the re-sort of invalidated NonLocalPointerDeps cache earlier 2009-07-13 17:14:23 +00:00
GVNPRE Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
IndMemRem Actually run the test in this directory. 2009-01-25 08:05:07 +00:00
IndVarSimplify Special-case static allocas in IndVarSimplify's loop invariant 2009-08-25 17:42:10 +00:00
Inline Implement a new optimization in the inliner: if inlining multiple 2009-08-27 06:29:33 +00:00
InstCombine Remove obsolete -f flags. 2009-08-25 15:38:29 +00:00
Internalize Teach the internalize pass to also internalize 2009-01-05 21:24:45 +00:00
IPConstantProp Modify some ipconstprop tests to also test with invokes. 2008-06-19 09:27:44 +00:00
JumpThreading make jump threading handle lexically identical compare instructions 2009-06-19 16:27:56 +00:00
LCSSA Fix LCSSA to avoid emitting a PHI node for the unwind destination of 2009-06-26 00:31:13 +00:00
LICM Before deleting a basic block, give other loop passes a chance cleanup analysis values, related to the instructions in the basic block. 2009-03-25 23:57:48 +00:00
LoopDeletion don't spew tons of stuff to the output. This testcase is *not* for 2008-12-03 06:41:50 +00:00
LoopIndexSplit Don't try to split a loop when the controlling icmp instruction 2009-06-27 22:58:27 +00:00
LoopRotate Testcase for PR2639. 2009-04-23 04:30:52 +00:00
LoopSimplify Teach LoopSimplify how to merge multiple loop exits into a single exit, 2009-06-27 21:30:38 +00:00
LoopStrengthReduce Tweak this test to be a little less unusual. 2009-06-20 00:40:56 +00:00
LoopUnroll remove a test that depends on -debug. 2009-03-13 20:31:48 +00:00
LoopUnswitch Actually test something. Use PR3170 test case. 2008-12-08 23:44:46 +00:00
LowerInvoke sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
LowerSetJmp sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
LowerSwitch sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
Mem2Reg Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
MemCpyOpt Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
MergeFunc Given two identical weak functions, produce one internal function and two weak 2009-06-12 15:56:56 +00:00
PredicateSimplifier sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
PruneEH Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
RaiseAllocations sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
Reassociate Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
ScalarRepl Don't crash trying to promote VLAs. 2009-08-17 05:37:31 +00:00
SCCP Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
SimplifyCFG Revert 79977. It causes llvm-gcc bootstrap failures on some platforms. 2009-08-26 05:01:18 +00:00
SimplifyLibCalls Add targetdata strings to these tests, since SimplifyLibCalls uses 2009-08-19 23:18:49 +00:00
SRETPromotion Add a basic test for the SRETPromotion pass. 2008-08-07 15:55:18 +00:00
SSI Fix up PHI nodes correctly in the presence of unreachable BBs, part two. Also 2009-08-19 07:16:57 +00:00
StripSymbols sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
TailCallElim Improve tail call elim to move loads above readonly calls 2009-06-19 04:22:16 +00:00
TailDup Remove obsolete -f flags. 2009-08-25 15:38:29 +00:00