Chris Lattner
79f0c8e4ee
Fix potential miscompilations: InstCombine/2004-09-20-BadLoadCombine*.llx
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16447 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-20 10:15:10 +00:00
Alkis Evlogimenos
7b6ec600c5
Fix loop condition so that we don't decrement off the beginning of the
...
list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16440 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-20 06:42:58 +00:00
Chris Lattner
b12914bfc0
'Pass' should now not be derived from by clients. Instead, they should derive
...
from ModulePass. Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16436 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-20 04:48:05 +00:00
Chris Lattner
ded6d0c9fb
Prototype more accurately
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16433 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-20 04:43:57 +00:00
Chris Lattner
4b50156049
Prototype these functions more accurately
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16432 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-20 04:43:15 +00:00
Chris Lattner
8a37520f80
Make isSafeToLoadUnconditionally a bit smarter, implementing PR362 and
...
Regression/Transforms/InstCombine/CPP_min_max.llx
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16409 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-19 19:18:10 +00:00
Chris Lattner
a744b77e11
Remove a whole bunch of horrible hacky code that was used to promote allocas
...
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
2004-09-19 18:51:51 +00:00
Chris Lattner
c10acedb2d
Make instruction combining a bit more aggressive in the face of volatile
...
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
2004-09-19 18:43:46 +00:00
Chris Lattner
f5afcabff8
Add comment
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16400 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-19 01:05:16 +00:00
Chris Lattner
0c0aa711b8
Fix the inliner to always delete any edges from the external call node to
...
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
2004-09-18 21:37:03 +00:00
Chris Lattner
5eb6f6c829
Convert this pass to be a CallGraphSCCPass instead of a Pass, which eliminates
...
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
2004-09-18 00:34:13 +00:00
Chris Lattner
afbb1ccd2f
Make sure to remove the Select instruction as well
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16389 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-18 00:32:40 +00:00
Chris Lattner
ebeb0cba94
Fix typo in comment
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16384 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-17 03:58:39 +00:00
Chris Lattner
acf808951b
Add a newline
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16369 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-15 17:53:52 +00:00
Reid Spencer
2da5c3dda6
Convert code to compile with vc7.1.
...
Patch contributed by Paolo Invernizzi. Thanks Paolo!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16368 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-15 17:06:42 +00:00
Chris Lattner
bdacd87957
Fix a bug in the previous checkin that broke 255.vortex
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16355 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-15 02:34:40 +00:00
Chris Lattner
fb3ee1930b
Make sure to update alias analysis information as we transform the function.
...
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
2004-09-15 01:04:07 +00:00
Chris Lattner
62e29b59f5
If given an AliasSetTracker object to update, update it.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16347 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-15 01:02:54 +00:00
Chris Lattner
b50f1f13e2
Remove a long-dead pass. Actually, this pass was never used at all.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16337 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-14 16:33:01 +00:00
Alkis Evlogimenos
20aa474f8f
Fixes to make LLVM compile with vc7.1.
...
Patch contributed by Paolo Invernizzi!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16152 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-03 18:19:51 +00:00
Reid Spencer
551ccae044
Changes For Bug 352
...
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
2004-09-01 22:55:40 +00:00
Reid Spencer
42e83feba7
Initial checkin of a pass to lower packed operations to scalars operations.
...
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
2004-08-21 21:39:24 +00:00
Chris Lattner
4e4c444d5c
If we are linking two global variables and they have the same size, do not
...
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
2004-08-20 00:30:39 +00:00
Chris Lattner
77a2a9d9da
Implement test/Regression/Transforms/GlobalConstifier/phi-select.llx
...
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
2004-08-14 20:57:17 +00:00
Chris Lattner
a670c684a6
If we are extracting a block that has multiple successors that are the same
...
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
2004-08-13 03:27:07 +00:00
Chris Lattner
337772832b
When we code extract some stuff, leave the codeRepl block in the place where
...
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 03:17:39 +00:00
Chris Lattner
8528672e7e
"extract" the block extractor pass from bugpoint (haha)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15714 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-13 03:05:17 +00:00
Chris Lattner
eb6f18fe7c
Add value mapper support for select constant exprs. This should fix a bug
...
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
2004-08-13 02:43:19 +00:00
Chris Lattner
ee45f4cbe4
This patch makes the inliner refuse to inline functions that have alloca
...
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
2004-08-12 05:45:09 +00:00
Chris Lattner
b519efbafe
Fix code extraction of unwind blocks. This fixed bugs that bugpoint can
...
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
2004-08-12 03:17:02 +00:00
Chris Lattner
a5de823844
Hrm, this pass didn't compile. This bugfix should go into 1.3!
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15676 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-12 02:44:23 +00:00
Chris Lattner
5dbef2207e
Fix InstCombine/2004-08-10-BoolSetCC.ll, a bug that is miscompiling
...
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
2004-08-11 00:50:51 +00:00
Chris Lattner
b49f306bdf
Fix InstCombine/2004-08-09-RemInfLoop.llx
...
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
2004-08-09 21:05:48 +00:00
Chris Lattner
54970c0328
Fix another really nasty regression that Anshu pointed out. In cases where
...
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
2004-08-08 03:29:50 +00:00
Chris Lattner
68392422e6
Two fixes:
...
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
2004-08-08 01:30:07 +00:00
Chris Lattner
5e2e27284b
This DEBUG is buggy. comment it out because it's not worth fixing. This
...
should go into 1.3
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15567 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-08 01:27:56 +00:00
Alkis Evlogimenos
15876bb28c
Stop using getValues().
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15487 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-04 08:44:43 +00:00
Chris Lattner
1484089bbf
Fix a regression in InstCombine/xor.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15410 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-01 19:42:59 +00:00
Chris Lattner
1e5fdf8ba0
Expose this as a functionpass
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15369 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-31 10:01:58 +00:00
Misha Brukman
cb6267bc60
Fix De Morgan's name.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15343 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-30 12:50:08 +00:00
Chris Lattner
acd1f0fcb3
Start using the PatternMatcher a bit.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15342 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-30 07:50:03 +00:00
Misha Brukman
78c038d0cc
Fix #includes of i*.h => Instructions.h as per PR403.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15337 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-29 17:30:57 +00:00
Misha Brukman
47b14a4a6a
Fix #includes of i*.h => Instructions.h as per PR403.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15334 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-29 17:30:56 +00:00
Misha Brukman
d8e1eea678
Fix #includes of i*.h => Instructions.h as per PR403.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15328 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-29 17:05:13 +00:00
Alkis Evlogimenos
eb62bc77b6
Merge i*.h headers into Instructions.h as part of bug403.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15325 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-29 12:17:34 +00:00
Robert Bocchino
71698285e8
This change fixed a bug in the function visitMul. The prior version
...
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
2004-07-27 21:02:21 +00:00
Brian Gaeke
96d4bf7aee
Make the create...() functions for some of these passes return a FunctionPass *.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15276 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-27 17:43:21 +00:00
Chris Lattner
eaa243039b
Fix hoisting of void typed values, e.g. calls
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15263 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-27 07:38:32 +00:00
Chris Lattner
a000279a7d
Implement DeadStoreElim/alloca.llx by observing that allocas are dead at the
...
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
2004-07-26 06:14:11 +00:00
Chris Lattner
595ee7ec26
Throttle back indvar substitution from creating multiplies in loops. This is bad bad bad.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15227 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-26 02:47:12 +00:00