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2004-04-20Add the ability for SCC passes to initialize and finalize themselvesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13084 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-19It's not just a printer, it's actually an analysis tooChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13064 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-19Remove code to update loop depthsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13058 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-18Add new methodChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13050 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-18Fix computation of exit blocksChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13047 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-18Change the ExitBlocks list from being explicitly contained in the LoopChris Lattner
structure to being dynamically computed on demand. This makes updating loop information MUCH easier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13045 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-18Implement methodChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13036 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-18Add a new method, add a check missing that caused a segfault if a loop didn'tChris Lattner
have a canonical indvar git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13032 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-17Add the ability to compute exit values for complex loop using unanalyzableChris Lattner
operations. This allows us to compile this testcase: int main() { int h = 1; do h = 3 * h + 1; while (h <= 256); printf("%d\n", h); return 0; } into this: int %main() { entry: call void %__main( ) %tmp.6 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([4 x sbyte]* %.str_1, long 0, long 0), int 364 ) ; <int> [#uses=0] ret int 0 } This testcase was taken directly from 256.bzip2, believe it or not. This code is not as general as I would like. Next up is to refactor it a bit to handle more cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13019 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-17Add the ability to compute trip counts that are only controlled by constantsChris Lattner
even if the loop is using expressions that we can't compute as a closed-form. This allows us to calculate that this function always returns 55: int test() { double X; int Count = 0; for (X = 100; X > 1; X = sqrt(X), ++Count) /*empty*/; return Count; } And allows us to compute trip counts for loops like: int h = 1; do h = 3 * h + 1; while (h <= 256); (which occurs in bzip2), and for this function, which occurs after inlining and other optimizations: int popcount() { int x = 666; int result = 0; while (x != 0) { result = result + (x & 0x1); x = x >> 1; } return result; } We still cannot compute the exit values of result or h in the two loops above, which means we cannot delete the loop, but we are getting closer. Being able to compute a constant trip count for these two loops will allow us to unroll them completely though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13017 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-16Include <cmath> for compatibility with gcc 3.0.x (the system compiler onBrian Gaeke
Debian.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12986 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-15add some helpful methods. Rearrange #includes to proper orderChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12960 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-15Factor a bunch of classes out into a public headerChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12958 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-15Unbreak the buildChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12956 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-14Implement a FIXME: if we're going to insert a cast, we might as well onlyChris Lattner
insert it once! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12955 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-14This is a trivial tweak to the addrec insertion code: insert the incrementChris Lattner
at the bottom of the loop instead of the top. This reduces the number of overlapping live ranges a lot, for example, eliminating a spill in an important loop in 183.equake with linear scan. I still need to make the exit comparison of the loop use the post-incremented version of this variable, but this is an easy first step. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12952 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-12Add some methods that are useful for updating loop information.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12871 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-12Change the call graph class to have TWO external nodes, making call graphChris Lattner
SCC passes much more useful. In particular, this should fix the incredibly stupid missed inlining opportunities that the inliner suffered from. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12860 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-12Hrm, operator new and new[] do not belong here. We should not CSE them! :)Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12859 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-11operator new & operator new[] do not kill any legal memory locations.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12833 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-11Allow clients to be more efficient.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12831 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10Add a couple of more functions that cannot access memory (the intrinsics) andChris Lattner
don't write to memory git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12808 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-07Fix a bug Brian found.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12754 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Sparc don't got not "sqrtl", bum bum bumChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12670 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Kill warnings during an optimized compile where assert() disappears.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12669 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Fix PR312 and IndVarsSimplify/2004-04-05-InvokeCastCrash.llxChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12668 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
2004-04-03Implement test/Regression/Transforms/GCSE/undefined_load.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12641 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-03Add a break in the default caseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12639 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Remove obsolete filesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12633 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Comment out debugging printoutsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12623 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Add a new analysisChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12619 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30Add some new methodsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12539 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-29Adjust to new itfChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12534 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-25Minor efficiency improvement, finegrainify namespacificationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12517 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-17Fix a HORRIBLY NASTY bug that caused siod to stop working last night.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12479 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Add some missing functions. Make sure to handle calls together in case theChris Lattner
client has another VN implementation that can VN calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12427 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Ok, the assertion was bogus. Calls that do not read/write memory should notChris Lattner
have an alias set, just like adds and subtracts don't. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12422 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15This assertion is bogus now that calls do not necessarily read/write memoryChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12421 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Implement CSE of call instructions in the most trivial case. This implementsChris Lattner
GCSE/call_cse.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12419 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Fix a minor bug, implementing GCSE/call_pure_function.llChris Lattner
Also, add some stuff I missed before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12417 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Don't be COMPLETELY pessimistic in the face of function callsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12413 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Deinline some virtual methods, provide better mod/ref answers through theChris Lattner
use of the boolean queries git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12410 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Pass through the boolean queriesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12409 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Teach basicaa about some stdc functions.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12408 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14DemoteRegToStack got moved from DemoteRegToStack.h to Local.hChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12368 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-13Fix a tiny bug that caused an incorrect assertion failure poolallocatingChris Lattner
boxed-sim. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12358 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-13Rename the intrinsic enum values for llvm.va_* from Intrinsic::va_* toChris Lattner
Intrinsic::va*. This avoid conflicting with macros in the stdlib.h file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12356 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12Fix a couple of minor problems. Because PHI nodes can use themselves, thisChris Lattner
could cause infinite loops. Also, getUnderlyingObject can return null git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12351 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12Implement mod/ref analysis for a trivial case where locals don't escape.Chris Lattner
This comes up when you have a local array on the stack and you never pass the address of elements around. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12349 91177308-0d34-0410-b5e6-96231b3b80d8
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