first element of an array, return a GEP instead of a cast. This allows us
to transparently fold this:
int* getelementptr (int* cast ([100 x int]* %Gbody to int*), int 40)
into this:
int* getelementptr ([100 x int]* %Gbody, int 0, int 40)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16911 91177308-0d34-0410-b5e6-96231b3b80d8
exponential behavior (bork!). This patch processes stuff with an
explicit SCC finder, allowing the algorithm to be more clear,
efficient, and also (as a bonus) correct! This gets us back to taking
0.6s to disassemble my horrible .bc file that previously took something
> 30 mins.
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(PromoteAbstractToConcrete), and to use a set to avoid recomputation.
In particular, this set eliminates the potentially exponential cases
from this little recursive algorithm.
On a particularly nasty testcase, llvm-dis on the .bc file went from 34
minutes (which is when I killed it, it still hadn't finished) to 0.57s.
Remember kids, exponential algorithms are bad.
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This method is linear time in the size of the basic block, which is very
bad for large basic blocks. On the Assembler/2004-09-29-VerifierIsReallySlow.llx
testcase, the verifier changes from taking 50s to 0.23s with this patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16593 91177308-0d34-0410-b5e6-96231b3b80d8
from ModulePass. Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.
Also, fix some undefined behavior, expecting | on booleans to evaluate
left-to-right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16435 91177308-0d34-0410-b5e6-96231b3b80d8
error. We'll strategize on this when we have multiple front ends to deal
with. For now llvm-ld just runs a standard set of transforms.
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libraries list is merged into the "destination" module's list. Also, if the
source module is one of the dependent libraries, it is removed from the
list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16282 91177308-0d34-0410-b5e6-96231b3b80d8
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/.
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error message, print out:
llvm-link: error linking in 'g.2.rbc': Global Variable Collision on
' %struct.D_Reduction* %d_reduction_10_gram' - External linkage globals have
different initializers
That's a bit more concise, huh?
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Ouch! Changes in the lazy initialization code caused each incorporated
function to reprocess the entire function on every lookup of a value's
slot number. This caused a horrible slowdown in all functions. This
fix made llvm-dis go from "longer than I care to wait" (minutes) on a large
test case to 0.53 seconds.
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gccld -disable-opt on 252.eon.
This patch deletes it and replaces it with a map. The proper fix for this
is to fix PR411, but this will do in the short term.
gccld on eon now takes 5.51s, which is 50% faster than before this patch. :)
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Do not call FindGlobalNamed when we know we will ignore the result (because
we are not going to link a static symbol anyway). This speeds up
gccld -disable-opt on 252.eon from 8.63s to 8.39s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15465 91177308-0d34-0410-b5e6-96231b3b80d8
lookups it does. This shaves another 5% off of bcreading 252.eon. Note that
the proper solution to this problem is to fix PR411, but that will have to
wait until later.
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