* Change the FunctionCalls and AuxFunctionCalls vectors into std::lists.
This makes many operations on these lists much more natural, and avoids
*exteremely* expensive copying of DSCallSites (e.g. moving nodes around
between lists, erasing a node from not the end of the vector, etc).
With a profile build of analyze, this speeds up BU DS from 25.14s to
12.59s on 176.gcc. I expect that it would help TD even more, but I don't
have data for it.
This effectively eliminates removeIdenticalCalls and children from the
profile, going from 6.53 to 0.27s.
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not invalidated on entry and on exit of the block. This fixes some N^2
behavior in common cases, and speeds up gcc another 5% to 22.35s.
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will cause us to miss cases where the input pointer to a load could be value
numbered to another load. Something like this:
%X = load int* %P1
%Y = load int* %P2
Those are obviously the same if P1/P2 are the same. The code this patch
removes attempts to handle that. However, since GCSE iterates, this doesn't
actually buy us anything: GCSE will first replace P1 or P2 with the other
one, then the load can be value numbered as equal.
Removing this code speeds up gcse a lot. On 176.gcc in debug mode, this
speeds up gcse from 29.08s -> 25.73s, a 13% savings.
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If needed, this can be resurrected from CVS.
Note that several of the interfaces (e.g. the IPModRef ones) are supersumed
by generic AliasAnalysis interfaces that have been written since this code
was developed (and they are not DSA specific).
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1. Rename createLoaderPass to CreateProfileLoaderPass
2. Opt shouldn't use the pass registered in CodeGen.
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a function call at the core of the loop inline and removing unused
stack variables from an often called function. This doesn't improve things
much, the real saving will be by reducing the number of calls to this
function (100K+ when linking kimwitu++).
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Regression/Analysis/GlobalsModRef/purecse.ll. Isn't this what the
-Woverload-whatever flag would warn about :)
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Make only one print method to avoid overloaded virtual warnings when \
compiled with -Woverloaded-virtual
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All SPEC CFP 95 programs now work, though the JIT isn't loading -lf2c right
so they aren't testing correctly.
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themselves. Make sure to update DSInfo correctly. This fixes a testcase
reduced from Prolangs-C++/objects
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function pointer equivalences. This fixes many problems, including a testcase
reduced Prolangs-C++/objects.
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a DSGraph at a time instead of a function at a time. This is also more
correct, though it doesn't seem to fix any programs.
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