Commit Graph

4839 Commits

Author SHA1 Message Date
Chris Lattner
9b527704f7 Add an option to enable the SSA based peephole optimizer.
Eventually this pass will provide substantially better code in the interim between when we
have a crappy isel and nice isel.  Unfortunately doing so requires fixing the backend to
actually SUPPORT all of the fancy addressing modes that we now generate, and writing a DCE
pass for machine code.  Each of these is a fairly substantial job, so this will remain disabled
for the immediate future.  :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10276 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-01 05:18:30 +00:00
Chris Lattner
4537076ee8 Add a new SSA-based peephole optimizer which includes copy propagation and
folding of instructions into addressing modes.  This creates lots of dead
instructions, which are currently not deleted.  It also creates a lot of
instructions that the X86 backend currently cannot handle.  :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10275 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-01 05:15:28 +00:00
Chris Lattner
f2d2925452 generalize the instruction types permitted a bit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10274 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-01 05:13:56 +00:00
Alkis Evlogimenos
585870759b Print instructions before register allocation is performed. Also fix
bug where spill instructions were added to the next basic block
instead of the end of the current one if the instruction that required
the spill was the last in the block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10272 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-30 23:40:39 +00:00
Chris Lattner
e1cc79f1cf Finegrainify namespacification
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10270 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-30 06:13:25 +00:00
Alkis Evlogimenos
99d1a8f048 Remove "numReloaded" statistic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10268 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-30 05:15:36 +00:00
Chris Lattner
2c0a6a19ef Emit constants to one contiguous block, but this time, respect alignment constraints.
If this doesn't work Misha, feel free to revert it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10267 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-30 04:23:21 +00:00
Misha Brukman
91de352796 Go back to allocating memory for each constant separately. Since SPARCs do not
allow unaligned loads, that is probably the problem I've been seeing in numerous
SPARC test cases failing. X86, on the other hand, just slows down unaligned
accesses, since it must make 2 aligned accesses for each unaligned one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10266 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-30 00:50:53 +00:00
Chris Lattner
3607f4d217 Fix test: Transforms/LevelRaise/2003-11-28-IllegalTypeConversion.ll
Some gep generalization changes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10252 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-29 05:31:25 +00:00
Chris Lattner
6cc8ca9229 * The return value of LinkLibraries is ignored, so remove it.
* Finegrainify namespacification of Linker.cpp
* If linking a library in fails, do not STOP LINKING IN LIBRARIES AND
  CONTINUE ANYWAY!  Instead, just output the warning, and keep going. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10249 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-28 07:44:09 +00:00
Chris Lattner
4257098c36 To not barf when an error occurs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10236 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-26 07:24:58 +00:00
Chris Lattner
4f7e173cbd output foo(void) as appropriate
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10232 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-26 00:09:17 +00:00
Chris Lattner
bc771c5608 Fix bug in previous checkin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10231 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 23:44:40 +00:00
Chris Lattner
d85cbe8f69 Fix const correctness
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10229 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 21:28:00 +00:00
Chris Lattner
b9da9c137d Relax constrains on GEP type indexes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10228 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 21:21:46 +00:00
Chris Lattner
be883a23ed Do not use index type to determine what it is indexing into!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10226 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 21:09:18 +00:00
Chris Lattner
23e907082a Do not depend on the gep index types to determine what flavor of index it is
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10225 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 20:49:55 +00:00
Chris Lattner
4af6de8f0a Do not depend on structure elements being of type UByteTy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10224 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 20:44:56 +00:00
Chris Lattner
fa3711a0f8 Do not depend on index type to determine whether it is a structure or sequential index
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10221 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 20:19:55 +00:00
Chris Lattner
9d7c9ea053 Fix file header
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10219 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 20:11:47 +00:00
Chris Lattner
b66214c5ad Remove dead variable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10218 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 20:11:00 +00:00
Chris Lattner
1af55e1693 Use gep_type_begin/end instead of looking for ubytes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10217 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 20:10:07 +00:00
Chris Lattner
ec4e8085e8 Finegrainify namespacification
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10210 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 18:33:40 +00:00
Chris Lattner
0b268fb75e Fix PR147
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10204 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-25 03:54:16 +00:00
Misha Brukman
971a7b88b5 Fix copy-pasto.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10197 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-24 05:36:38 +00:00
Misha Brukman
17cca96735 Add ability to query if a file is a legitimate ELF shared object.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10193 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-24 05:28:12 +00:00
Brian Gaeke
f9c86cf5cf Support constant casting constant pointers to ints/uints, and/or
the other way around, instead of failing a large, tumor-like assertion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10171 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-22 07:18:25 +00:00
Brian Gaeke
dfcc9cfaa8 Constant shift expressions, meet InstSelectSimple. Yow!!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10170 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-22 06:49:41 +00:00
Brian Gaeke
2dd3e1b435 Stub for constant shift expr support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10168 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-22 05:18:35 +00:00
Brian Gaeke
0415b6c57a Fix PR149 - support constant shift expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10167 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-22 05:02:56 +00:00
Chris Lattner
ab25f5a6c1 Delete dead line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10164 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-22 02:26:17 +00:00
Chris Lattner
3788c242be Fix bug: Transforms/PruneEH/2003-11-21-PHIUpdate.llx
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10163 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-22 02:20:36 +00:00
Chris Lattner
c8ecd22037 Do not crash when deleing a region with a dead invoke instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10161 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-22 02:13:08 +00:00
Chris Lattner
35bb52f8b1 Finegrainify namespacification
The module stripping pass should not strip symbols on external globals


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10157 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-22 01:29:35 +00:00
Misha Brukman
a59f41fc6c * Add code to flush the ICache, which any self-respecting SMC must do
* Restore registers *after* everything else to avoid any possible side effects

This fixes McCat-imp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10147 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 23:48:54 +00:00
Chris Lattner
c282f5a380 Check return types of functions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10146 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 22:32:23 +00:00
Chris Lattner
6d1db01284 Considering that CI is not even IN SCOPE here, I wooda thought the compiler
would have caught this.  *sigh*


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10142 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 21:57:29 +00:00
Chris Lattner
1e2385b941 Finegrainify namespacification
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10138 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 21:54:22 +00:00
Chris Lattner
1192283096 Get rid of using decls, finegrainify namespacification
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10137 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 21:52:10 +00:00
Chris Lattner
869adc283c * Finegrainify namespacification
* Make the cost metric for passing constants in as arguments to functions MUCH
  more accurate, by actually estimating the amount of code that will be constant
  propagated away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10136 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 21:46:09 +00:00
Chris Lattner
a51bcb50b0 Finegrainify namespacification
Print out the costs for functions that AREN'T inlined as well


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10135 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 21:45:31 +00:00
Chris Lattner
afd0b4b24a Fix problem Reid was having with external globals and nonexternal linkage
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10133 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 20:33:27 +00:00
Chris Lattner
ae711a8b48 Don't crash on bogus source value
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10132 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 20:27:35 +00:00
Chris Lattner
31f8499e83 Finegrainify namespacification
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10131 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 20:23:48 +00:00
Chris Lattner
15e8752e8f Fix some problems with assertions printing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10129 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 17:35:51 +00:00
Chris Lattner
7334f2e3da improve error message
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10128 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 17:06:29 +00:00
Chris Lattner
108e4ab159 Minor cleanups and simplifications
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10127 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-21 16:52:05 +00:00
Chris Lattner
03fb8b2a42 * Finegrainify namespacification
* Implement FuncResolve/2003-11-20-BogusResolveWarning.ll
   ... which eliminates a large number of annoying warnings.  I know misha
   will miss them though!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10123 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-20 21:21:31 +00:00
Misha Brukman
84fbc653ce Add ability to search only for native shared object, and expose the
functionality to the rest of gccld.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10113 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-20 19:08:06 +00:00
Chris Lattner
f8485c6434 Start using the nicer terminator auto-insertion API
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10111 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-20 18:25:24 +00:00