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2480737211
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601 Commits

Author SHA1 Message Date
Owen Anderson
2480737211 Clean up and refactor LCSSA a bunch. It should also run faster now, though 
there's still a lot of work to be done on it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28506 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-26 21:11:53 +00:00
Owen Anderson
11f510b577 Skeletal LCSSA pass. This is currently non-functional. Expect functionality 
and documentation updates soo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28495 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-26 13:58:26 +00:00
Chris Lattner
99f2af2dee Revert a patch that is unsafe, due to out of range array accesses in inner 
array scopes possibly accessing valid memory in outer subscripts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28478 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 21:25:12 +00:00
Chris Lattner
a04c0c417b Patch for a new instcombine xform, patch contributed by Nick Lewycky! 
This implements Transforms/InstCombine/2006-05-10-InvalidIndexUndef.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28450 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 17:34:30 +00:00
Reid Spencer
bc2eba1ca2 Fix a doxygen problem and break lines at 80 columns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28395 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-19 19:09:46 +00:00
Chris Lattner
ed96fe8c79 Declare that lowerinvoke doesn't interact with other lowering passes. 
Patch written by Domagoj Babic!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28367 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-17 21:05:27 +00:00
Chris Lattner
782e60150e Add a CloneModule call that exposes the mapping of values from the old module 
to the new module.  Patch provided by Nick Lewycky!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28349 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-17 18:05:35 +00:00
Chris Lattner
a0fcc3ee3f remove some dead code identified by coverity 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28289 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-14 18:45:44 +00:00
Chris Lattner
36a169e1a3 remove dead variables 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28286 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-14 18:33:57 +00:00
Chris Lattner
8d89e7bdbc Patch to make some xforms preserve each other. Patch contributed by 
Domagoj Babic!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28181 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-09 04:13:41 +00:00
Chris Lattner
b3674e4753 Add pass ID's for various passes, so they can be AddRequiredID. Patch by 
Domagoj Babic!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28048 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-02 04:24:36 +00:00
Chris Lattner
634c76c08c Fix some nondeterminstic behavior in the mem2reg pass that (in addition to 
nondeterminism being bad) could cause some trivial missed optimizations (dead
phi nodes being left around for later passes to clean up).

With this, llvm-gcc4 now bootstraps and correctly compares.  I don't know
why I never tried to do it before... :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27984 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-27 01:14:43 +00:00
Chris Lattner
543abdf1d0 Add supprot for shufflevector 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27513 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-08 01:19:12 +00:00
Chris Lattner
8960766d45 Fix inlining of insert/extract element constantexprs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27478 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-07 04:41:03 +00:00
Chris Lattner
7224f84c15 Adjust to change in Intrinsics.gen interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27344 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-02 03:35:01 +00:00
Chris Lattner
3805dea3fe add valuemapper support for inline asm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27332 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-01 23:17:11 +00:00
Chris Lattner
49aaa6a8ee teach the inliner to work with packed constants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27161 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-27 05:50:18 +00:00
Chris Lattner
aeebe7f208 use autogenerated side-effect information 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26673 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-09 22:38:10 +00:00
Chris Lattner
299520de7c Fix Transforms/SimplifyCFG/2006-02-17-InfiniteUnroll.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26275 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-18 00:33:17 +00:00
Chris Lattner
0ab9f966de Canonicalize inner loops before outer loops. Inner loop canonicalization 
can provide work for the outer loop to canonicalize.

This fixes a case that breaks unswitching.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26189 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 23:06:02 +00:00
Chris Lattner
c27e056d4f When splitting exit edges to canonicalize loops, make sure to put the new 
block in the appropriate loop nest.

Third time is the charm, right?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26187 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 22:34:08 +00:00
Chris Lattner
ee628cfefb Revert my last patch. It too breaks stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26128 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-12 01:59:10 +00:00
Chris Lattner
d308ddcd67 Fix for my previously reverted patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26126 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-11 21:24:54 +00:00
Chris Lattner
5077c7be92 revert my previous change, it exposed other problems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26121 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-11 08:47:47 +00:00
Chris Lattner
8587eb3a51 Make this check stricter. Disallow loop exit blocks from being shared by 
loops and their subloops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26118 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-11 02:13:17 +00:00
Chris Lattner
441365c46e remove dead expr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26116 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-11 01:43:37 +00:00
Chris Lattner
f47a6b4882 teach the cloner to handle inline asms 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25633 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-26 01:55:22 +00:00
Chris Lattner
3e2fa7a746 rename method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25572 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-24 04:16:34 +00:00
Chris Lattner
9771aeafca When cloning a module, clone the inline asm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25559 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-23 23:06:28 +00:00
Chris Lattner
dac58ad983 Make iostream #inclusion explicit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25514 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-22 23:32:06 +00:00
Chris Lattner
86a5484079 Add explicit #includes of <iostream> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25509 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-22 22:53:01 +00:00
Robert Bocchino
d900c6a8b3 ConstantFoldLoadThroughGEPConstantExpr wasn't handling pointers to 
packed types correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25470 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-19 23:53:23 +00:00
Chris Lattner
c4e8c9f318 Make sure that cloning a module clones its target triple and dependent 
library list as well.  This should help bugpoint.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25424 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-18 21:32:45 +00:00
Robert Bocchino
956fd7254f Constant folding support for the insertelement operation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25407 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-17 20:07:07 +00:00
Reid Spencer
0b118206bf For PR411: 
This patch is an incremental step towards supporting a flat symbol table.
It de-overloads the intrinsic functions by providing type-specific intrinsics
and arranging for automatically upgrading from the old overloaded name to
the new non-overloaded name. Specifically:
  llvm.isunordered -> llvm.isunordered.f32, llvm.isunordered.f64
  llvm.sqrt -> llvm.sqrt.f32, llvm.sqrt.f64
  llvm.ctpop -> llvm.ctpop.i8, llvm.ctpop.i16, llvm.ctpop.i32, llvm.ctpop.i64
  llvm.ctlz -> llvm.ctlz.i8, llvm.ctlz.i16, llvm.ctlz.i32, llvm.ctlz.i64
  llvm.cttz -> llvm.cttz.i8, llvm.cttz.i16, llvm.cttz.i32, llvm.cttz.i64
New code should not use the overloaded intrinsic names. Warnings will be
emitted if they are used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25366 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-16 21:12:35 +00:00
Chris Lattner
468fb1df7d Teach the inliner to update the CallGraph itself, and have it add edges to 
llvm.stacksave/restore when it inserts calls to them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25320 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-14 20:07:50 +00:00
Nate Begeman
6fb3bd6a65 Add bswap intrinsics as documented in the Language Reference 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25309 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-14 01:25:24 +00:00
Chris Lattner
5522037136 it is ok to dce stacksave. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25295 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 21:31:54 +00:00
Chris Lattner
bf229f488a If inlining a call to a function that contains dynamic allocas, wrap the 
resultant code with llvm.stacksave/llvm.stackrestore intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25286 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 19:34:14 +00:00
Chris Lattner
1fdf4a859f Use ClonedCodeInfo to avoid another walk over the inlined code, this this 
time in common C cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25285 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 19:18:11 +00:00
Chris Lattner
727d1dd587 Use the ClonedCodeInfo object to avoid scans of the inlined code when 
it doesn't contain any calls.  This is a fairly common case for C++ code,
so it will probably speed up the inliner marginally in these cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25284 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 19:15:15 +00:00
Chris Lattner
cd4d339ec1 Refactor a bunch of invoke handling stuff out into a new function 
"HandleInlinedInvoke".  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25283 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 19:05:59 +00:00
Chris Lattner
a4c29d2037 Allow the code cloning interfaces to capture some important info about the 
code being cloned if the client wants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25281 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 18:39:17 +00:00
Chris Lattner
21f20558d6 Fix a bug I noticed by inspection: if the first instruction in the inlined 
function was not an alloca, we wouldn't check the entry block for any allocas,
leading to increased stack space in some cases.  In practice, allocas are almost
always at the top of the block, so this was never noticed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25280 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 18:16:48 +00:00
Chris Lattner
dd9e956605 Preserve and update ETForest. Patch by Daniel Berlin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25203 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-11 05:11:13 +00:00
Robert Bocchino
b52ee7f5ff Added support for the extractelement operation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25181 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-10 19:05:34 +00:00
Chris Lattner
baec98d00b Teach loopsimplify to update et-forest. Patch contributed by Daniel Berlin! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25153 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-09 08:03:08 +00:00
Chris Lattner
8e75ee212f Fix SimplifyCFG/2005-12-03-IncorrectPHIFold.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24581 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-03 18:25:58 +00:00
Chris Lattner
36ba5006df Implement a refinement to the mem2reg algorithm for cases where an alloca 
has a single def.  In this case, look for uses that are dominated by the def
and attempt to rewrite them to directly use the stored value.

This speeds up mem2reg on these values and reduces the number of phi nodes
inserted.  This should address PR665.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24411 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-18 07:31:42 +00:00
Chris Lattner
fed40df846 This needs proper dominance 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24410 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-18 07:29:44 +00:00