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2004-09-20Prototype these functions more accuratelyChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16432 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-19Make isSafeToLoadUnconditionally a bit smarter, implementing PR362 andChris Lattner
Regression/Transforms/InstCombine/CPP_min_max.llx git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16409 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-19Remove a whole bunch of horrible hacky code that was used to promote allocasChris Lattner
whose addresses where used by trivial phi nodes and select instructions. This is now performed by the instcombine pass, which is more powerful, is much simpler, and is faster. This allows the deletion of a bunch of code, two FIXME's and two gotos. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16406 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-19Make instruction combining a bit more aggressive in the face of volatileChris Lattner
loads, and implement two new transforms: InstCombine/load.ll:test[56]. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16404 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-19Add commentChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16400 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-18Fix the inliner to always delete any edges from the external call node toChris Lattner
a function being deleted. Due to optimizations done while inlining, there can be edges from the external call node to a function node that were not apparent any longer. This fixes the compiler crash while compiling 175.vpr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16399 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-18Convert this pass to be a CallGraphSCCPass instead of a Pass, which eliminatesChris Lattner
the worklist and makes it more efficient. This does not change functionality at all. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16390 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-18Make sure to remove the Select instruction as wellChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16389 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-17Fix typo in commentChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16384 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-15Add a newlineChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16369 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-15Convert code to compile with vc7.1.Reid Spencer
Patch contributed by Paolo Invernizzi. Thanks Paolo! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16368 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-15Fix a bug in the previous checkin that broke 255.vortexChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16355 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-15Make sure to update alias analysis information as we transform the function.Chris Lattner
This fixes PR420 and Regression/Transforms/LICM/2004-09-14-AliasAnalysisInvalidate.llx git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16348 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-15If given an AliasSetTracker object to update, update it.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16347 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-14Remove a long-dead pass. Actually, this pass was never used at all.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16337 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-03Fixes to make LLVM compile with vc7.1.Alkis Evlogimenos
Patch contributed by Paolo Invernizzi! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16152 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-01Changes For Bug 352Reid Spencer
Move include/Config and include/Support into include/llvm/Config, include/llvm/ADT and include/llvm/Support. From here on out, all LLVM public header files must be under include/llvm/. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-21Initial checkin of a pass to lower packed operations to scalars operations.Reid Spencer
This also registers the pass with opt with a -lower-packed command line option. Patch contributed by Brad Jones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15987 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-20If we are linking two global variables and they have the same size, do notChris Lattner
spew warnings, even if the types don't match. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15933 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-14Implement test/Regression/Transforms/GlobalConstifier/phi-select.llxChris Lattner
This allows more globals to be marked constant, particularly global arrays. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15735 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-13If we are extracting a block that has multiple successors that are the sameChris Lattner
block (common in a switch), make sure to remove extra edges in successor blocks. This fixes CodeExtractor/2004-08-12-BlockExtractPHI.ll and should be pulled into LLVM 1.3 (though the regression test need not be, as that would require pulling in the LoopExtract.cpp changes). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15717 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-13When we code extract some stuff, leave the codeRepl block in the place whereChris Lattner
the extracted code was, instead of putting it at the end of the function git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15716 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-13"extract" the block extractor pass from bugpoint (haha)Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15714 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-13Add value mapper support for select constant exprs. This should fix a bugChris Lattner
Nate ran into when bugpointing siod. This fix should go into LLVM 1.3 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15712 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-12This patch makes the inliner refuse to inline functions that have allocaChris Lattner
instructions in the body of the function (not the entry block). This fixes test/Programs/SingleSource/Regression/C/2004-08-12-InlinerAndAllocas.c and test/Programs/External/SPEC/CINT2000/176.gcc on zion. This should obviously be pulled into 1.3. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15684 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-12Fix code extraction of unwind blocks. This fixed bugs that bugpoint canChris Lattner
run into. This should go into 1.3 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15679 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-12Hrm, this pass didn't compile. This bugfix should go into 1.3!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15676 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-11Fix InstCombine/2004-08-10-BoolSetCC.ll, a bug that is miscompilingChris Lattner
176.gcc. Note that this is apparently not the only bug miscompiling gcc though. :( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15639 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-09Fix InstCombine/2004-08-09-RemInfLoop.llxChris Lattner
This should go into the 1.3 branch git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15593 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-08Fix another really nasty regression that Anshu pointed out. In cases whereChris Lattner
dangling constant users were removed from a function, causing it to be dead, we never removed the call graph edge from the external node to the function. In most cases, this didn't cause a problem (by luck). This should definitely go into 1.3 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15570 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-08Two fixes:Chris Lattner
1. Fix a REALLY nasty cyclic replacement issue that Anshu discovered, causing nondeterminstic crashes and memory corruption. 2. For performance, don't go inserting constantexpr casts of GV pointers. This should definitely go into 1.3 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15568 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-08This DEBUG is buggy. comment it out because it's not worth fixing. ThisChris Lattner
should go into 1.3 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15567 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-04Stop using getValues().Alkis Evlogimenos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15487 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-01Fix a regression in InstCombine/xor.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15410 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-31Expose this as a functionpassChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15369 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-30Fix De Morgan's name.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15343 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-30Start using the PatternMatcher a bit.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15342 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-29Fix #includes of i*.h => Instructions.h as per PR403.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15337 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-29Fix #includes of i*.h => Instructions.h as per PR403.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15334 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-29Fix #includes of i*.h => Instructions.h as per PR403.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15328 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-29Merge i*.h headers into Instructions.h as part of bug403.Alkis Evlogimenos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15325 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-27This change fixed a bug in the function visitMul. The prior versionRobert Bocchino
assumed that a constant on the RHS of a multiplication was either an IntConstant or an FPConstant. It checked for an IntConstant and then, if it did not find one, did a hard cast to an FPConstant. That code would crash if the RHS were a ConstantExpr that was neither an IntConstant nor an FPConstant. This version replaces the hard cast with a dyn_cast. It performs the same way for IntConstants and FPConstants but does nothing, instead of crashing, for constant expressions. The regression test for this change is 2004-07-27-ConstantExprMul.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15291 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-27Make the create...() functions for some of these passes return a FunctionPass *.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15276 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-27Fix hoisting of void typed values, e.g. callsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15263 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-26Implement DeadStoreElim/alloca.llx by observing that allocas are dead at theChris Lattner
end of the function (either return or unwind) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15232 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-26Throttle back indvar substitution from creating multiplies in loops. This ↵Chris Lattner
is bad bad bad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15227 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-25* Substantially simplify how free instructions are handled (potentially fixingChris Lattner
a bug in DSE). * Delete dead operand uses iteratively instead of recursively, using a SetVector. * Defer deletion of dead operand uses until the end of processing, which means we don't have to bother with updating the AliasSetTracker. This speeds up DSE substantially. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15204 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-25Free instructions kill values too. This implements DeadStoreElim/free.llxChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15199 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-24obvious fixChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15162 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-22This is a trivial dead store elimination pass. It very very simple andChris Lattner
can be improved in many ways. But: stop laughing, even with -basicaa it deletes 15% of the stores in 252.eon :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15101 91177308-0d34-0410-b5e6-96231b3b80d8
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