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2004-04-12Stop printing Function*Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12857 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-12Simplify code a bit, and be sure to mark the external node as potentially ↵Chris Lattner
throwing git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12856 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-11Fix a bug in my select transformationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12826 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10Update the value numbering interface.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12824 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10Implement InstCombine/select.ll:test13*Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12821 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10Implement InstCombine/add.ll:test20Chris Lattner
Canonicalize add of sign bit constant into a xor git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12819 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10Rewrite the GCSE pass to be *substantially* simpler, a bit more efficient,Chris Lattner
and a bit more powerful git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12817 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10Fix spurious warning in release modeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12816 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10Simplify code a bit, and fix a bug that was breaking perlbmkChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12814 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10Fix a bug in my checkin last night that was breaking programs using invoke.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12813 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10Fix previous patchChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12811 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10Correctly update countersChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12810 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10Simplify code a bit, and use alias analysis to allow us to delete unusedChris Lattner
call and invoke instructions that are known to not write to memory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12807 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-09Implement select.ll:test12*Chris Lattner
This transforms code like this: %C = or %A, %B %D = select %cond, %C, %A into: %C = select %cond, %B, 0 %D = or %A, %C Since B is often a constant, the select can often be eliminated. In any case, this reduces the usage count of A, allowing subsequent optimizations to happen. This xform applies when the operator is any of: add, sub, mul, or, xor, and, shl, shr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12800 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-09Fold code like:Chris Lattner
if (C) V1 |= V2; into: Vx = V1 | V2; V1 = select C, V1, Vx when the expression can be evaluated unconditionally and is *cheap* to execute. This limited form of if conversion is quite handy in lots of cases. For example, it turns this testcase into straight-line code: int in0 ; int in1 ; int in2 ; int in3 ; int in4 ; int in5 ; int in6 ; int in7 ; int in8 ; int in9 ; int in10; int in11; int in12; int in13; int in14; int in15; long output; void mux(void) { output = (in0 ? 0x00000001 : 0) | (in1 ? 0x00000002 : 0) | (in2 ? 0x00000004 : 0) | (in3 ? 0x00000008 : 0) | (in4 ? 0x00000010 : 0) | (in5 ? 0x00000020 : 0) | (in6 ? 0x00000040 : 0) | (in7 ? 0x00000080 : 0) | (in8 ? 0x00000100 : 0) | (in9 ? 0x00000200 : 0) | (in10 ? 0x00000400 : 0) | (in11 ? 0x00000800 : 0) | (in12 ? 0x00001000 : 0) | (in13 ? 0x00002000 : 0) | (in14 ? 0x00004000 : 0) | (in15 ? 0x00008000 : 0) ; } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12798 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-09Fold binary operators with a constant operand into select instructionsChris Lattner
that have a constant operand. This implements add.ll:test19, shift.ll:test15*, and others that are not tested git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12794 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-09Implement select.ll:test11Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12793 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-08Implement InstCombine/cast-propagate.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12784 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-08Implement ScalarRepl/select_promote.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12779 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-08Remove the "really gross hacks" that are there to deal with recursive functions.Chris Lattner
Now we collect all of the call sites we are interested in inlining, then inline them. This entirely avoids issues with trying to inline a call site we got by inlining another call site. This also eliminates iterator invalidation issues. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12770 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-08Implement InstCombine/select.ll:test[7-10]Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12769 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-07Implement test/Regression/Transforms/InstCombine/getelementptr_index.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12762 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Fix a bug in yesterdays checkins which broke siod. siod is a great ↵Chris Lattner
testcase! :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12659 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Fix InstCombine/2004-04-04-InstCombineReplaceAllUsesWith.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12658 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Support getelementptr instructions which use uint's to index into structureChris Lattner
types and can have arbitrary 32- and 64-bit integer types indexing into sequential types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12653 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Rewrite the indvars pass to use the ScalarEvolution analysis.Chris Lattner
This also implements some new features for the indvars pass, including linear function test replacement, exit value substitution, and it works with a much more general class of induction variables and loops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12620 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Fix the obvious bug in my previous checkinChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12618 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Implement Transforms/SimplifyCFG/return-merge.llChris Lattner
This actually causes us to turn code like: return C ? A : B; into a select instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12617 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-01Fix PR310 and TailDup/2004-04-01-DemoteRegToStack.llxChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12597 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-01Remove some assertions that are now bogus with the last patch I put inChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12595 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-01Fix PR306: Loop simplify incorrectly updates dominator informationChris Lattner
Testcase: LoopSimplify/2004-04-01-IncorrectDomUpdate.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12592 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-31Add warningChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12573 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-31Fix linking of constant expr casts due to type resolution changes. WithChris Lattner
this and the other patches 253.perlbmk links again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12565 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30Start cleaning up this pass so that I can debug it.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12548 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30Now that all the code generators support the select instruction, and the ↵Chris Lattner
instcombine pass can eliminate many nasty cases of them, start generating them in the optimizers git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12545 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30Implement select.ll:test[3-6]Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12544 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30Add a simple select instruction lowering passChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12540 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-26X % -1 == X % 1 == 0Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12520 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-25Two changes:Chris Lattner
#1 is to unconditionally strip constantpointerrefs out of instruction operands where they are absolutely pointless and inhibit optimization. GRRR! #2 is to implement InstCombine/getelementptr_const.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12519 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-19Teach the optimizer to delete zero sized alloca's (but not mallocs!)Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12507 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18Fix bug: CodeExtractor/2004-03-17-MissedLiveIns.llChris Lattner
With this fix we now successfully extract all 149 loops from 256.bzip2 without crashing or miscompiling the program! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12493 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18Add statistics to the loop extractor. The loop extractor has successfullyChris Lattner
extracted all 63 loops for Olden/bh without crashing and without miscompiling the program!!! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12491 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18Fix problem with PHI nodes having multiple predecessors from differentChris Lattner
exit nodes git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12490 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18Fix CodeExtractor/2004-03-17-UpdatePHIsOutsideRegion.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12489 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18Seriously simplify and correct the PHI node handling code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12487 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18Fix CodeExtractor/2004-03-17-OutputMismatch.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12486 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18Fix several bugs in the extractor:Chris Lattner
1. Names were not put on the new arguments created (ok, this just helps sanity :) 2. Fix outgoing pointer values 3. Do not insert stores for values that had not been computed 4. Fix some wierd problems with the outset calculation This fixes CodeExtractor/2004-03-14-DominanceProblem.ll, making the extractor work on at least one simple case! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12484 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18The code extractor needs dominator info. Provide itChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12483 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18Prune #includes, moving the module interface to the front. Note that thisChris Lattner
exposed the fact that the header was not self-contained. There is a reason we do things :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12481 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-17Fix compilation of mesa, which I broke earlier todayChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12465 91177308-0d34-0410-b5e6-96231b3b80d8
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