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Author SHA1 Message Date
Chris Lattner
99d6b8ec95 The ConstantExpr::getCast call can cause a CPR to be generated. If so, 
strip it off.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11213 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-09 00:20:55 +00:00
Chris Lattner
71151aee60 Fix PR215: [bcwriter] Problem compactifying ConstantPointerRefs 
Have I ever mentioned how much I _hate_ constantpointerrefs?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11212 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-09 00:15:41 +00:00
Misha Brukman
b9806e0101 Fix grammar-o. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11210 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 22:27:33 +00:00
Chris Lattner
501825e08a Improve compatibility with programs that already have a prototype for 'write', 
even if it is wierd in some way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11207 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 22:14:44 +00:00
Chris Lattner
a306d3720a vi failed me again. :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11206 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 21:52:30 +00:00
Chris Lattner
f37a4268d8 Rename the invoke 'except' destination to the 'unwind' destination 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11205 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 21:52:04 +00:00
Chris Lattner
a58e3a16c5 Change the 'exception' destination to the 'unwind' destination. We will always 
allow 'except' instead of 'unwind' here though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11203 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 21:48:25 +00:00
Chris Lattner
aeb2a1d708 rename the "exceptional" destination of an invoke instruction to the 'unwind' dest 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11202 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 21:44:31 +00:00
Chris Lattner
e0def04e43 Fix PR225: [pruneeh] -pruneeh pass removes invoke instructions it shouldn't 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11200 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 21:15:59 +00:00
Chris Lattner
edb1cf0c19 splitBasicBlock "does the right thing" now, no reason to reposition it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11199 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 20:49:07 +00:00
Chris Lattner
6d78457f17 Implement proper invoke/unwind lowering. 
This fixed PR16 "[lowerinvoke] The -lowerinvoke pass does not insert calls to setjmp/longjmp"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11195 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 19:53:56 +00:00
Chris Lattner
23c4724369 Print out all globals as they are emitted, not just those emitted from 
emitGlobals


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11191 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 19:33:23 +00:00
Chris Lattner
6c0398ed47 There is no reason to #define fd 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11190 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 19:33:07 +00:00
Chris Lattner
e1c09309f2 Add a call to 'write' right before the call to abort() in the unwind path. 
This causes the JIT, or LLC'd program to print out a nice message, explaining
WHY the program aborted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11184 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 07:30:29 +00:00
Chris Lattner
2dea8d65bc Add one that I missed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11179 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 01:53:10 +00:00
Chris Lattner
c3f5f7701f Instead of callign removeTriviallyDeadNodes on the global graph every time 
removeDeadNodes is called, only call it at the end of the pass being run.
This saves 1.3 seconds running DSA on 177.mesa (5.3->4.0s), which is
pretty big.  This is only possible because of the automatic garbage
collection done on forwarding nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11178 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 01:51:48 +00:00
Chris Lattner
cd90f21c0c Remove another unneeded call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11177 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 01:40:40 +00:00
Chris Lattner
cadfac6879 This call is no longer needed now that merging does not produce garbage 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11176 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 01:38:34 +00:00
Chris Lattner
4ff0b9636d Substantially improve the DSA code by removing 'forwarding' nodes from 
DSGraphs while they are forwarding.  When the last reference to the forwarding
node is dropped, the forwarding node is autodeleted.  This should simplify
removeTriviallyDead nodes, and is only (efficiently) possible because we are
using an ilist of dsnodes now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11175 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 01:27:18 +00:00
Chris Lattner
9857c1a6ae Bugfix for ilist conversion. The ilist wants to make an 'end' node which has 
G == 0


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11174 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 01:05:37 +00:00
Chris Lattner
28897e1784 Switch the Nodes list from being an std::vector<DSNode*> to an ilist<DSNode> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11173 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 00:53:26 +00:00
Chris Lattner
9fd37ba721 Change to use node_iterators instead of direct access to Nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11171 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-08 00:23:16 +00:00
Chris Lattner
e92e76446e getNodes() is gone, use node_begin/end instead 
Rename stats from dsnode -> dsa
Add a new stat


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11167 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-07 23:58:05 +00:00
Chris Lattner
a84c681637 getNodes() is gone 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11166 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-07 23:57:26 +00:00
Chris Lattner
a5ca28cafe There is no need to clone over nodes that are going to be dead anyway 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11157 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-07 22:00:03 +00:00
Alkis Evlogimenos
f5eaf16b94 Increase code clarity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11151 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-06 18:08:18 +00:00
Alkis Evlogimenos
54d23c754a Eliminate uneeded lookups by passing a Virt2PhysMap::iterator instead 
of the virtual register to certain functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11143 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-06 03:15:40 +00:00
Chris Lattner
99dcc1da86 Fix another dominator update bug. These bugs keep getting exposed because GCSE 
keeps finding more code motion opportunities now that the dominators are correct!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11142 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 23:20:59 +00:00
Alkis Evlogimenos
0b8cb2bc47 Change live interval representation. Machine instructions now have two 
slots each. As a concequence they get numbered as 0, 2, 4 and so
on. The first slot is used for operand uses and the second for
defs. Here's an example:

0: A = ...
2: B = ...
4: C = A + B ;; last use of A

The live intervals should look like:

A = [1, 5)
B = [3, x)
C = [5, y)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11141 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 22:55:25 +00:00
Chris Lattner
3e0b870def Fix bug updating dominators 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11140 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 22:33:26 +00:00
Chris Lattner
79fc865ccb Add debug output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11139 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 22:33:19 +00:00
Chris Lattner
4f02fc28eb Fix PR223: Loopsimplify incorrectly updates dominator information 
The problem is that the dominator update code didn't "realize" that it's
possible for the newly inserted basic block to dominate anything.  Because
it IS possible, stuff was getting updated wrong.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11137 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 21:12:24 +00:00
Alkis Evlogimenos
ad48cd6327 We don't need to scan the blocks that we are live-in on every 
access. Rather we only have to do it on the creation of the interval.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11135 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 20:45:40 +00:00
Chris Lattner
3b303d91d7 In a "seeing the forest through the trees" kinda situation, I realized that a 
complete rewrite of load-vn will make it a bit faster.  This changes speeds up
the gcse pass (which uses load-vn) from 25.45s to 0.42s on the testcase in
PR209.

I've also verified that this gives the exact same results as the old one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11132 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 17:20:00 +00:00
Chris Lattner
57ef9a2392 This is a big diff with no functionality change. We just reorder some code, 
which causes big reindentation.  While I'm at it, I fix the fixme by removing
some dead code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11131 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 05:56:23 +00:00
Chris Lattner
270db367e0 finegrainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11130 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 05:51:40 +00:00
Tanya Lattner
5a5960978a Added missing include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11129 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 05:04:39 +00:00
Tanya Lattner
1ad5bc5616 Fixed Chris' typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11128 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 04:45:21 +00:00
Chris Lattner
adf9b90411 Implement optimizations for handling large basic blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11126 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 00:36:43 +00:00
Alkis Evlogimenos
14be64018f Modify the two address instruction pass to remove the duplicate 
operand of the instruction and thus simplify the register allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11124 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 22:17:40 +00:00
Chris Lattner
a33ceaa2d4 Minor speedup, don't query ValueMap each time through the loop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11123 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 21:44:26 +00:00
Brian Gaeke
74ceb298fe Take away the default iostream argument of createMachineFunctionPrinterPass(), 
at Chris's request.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11120 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 21:41:01 +00:00
Chris Lattner
c1df7e1799 Two changes: 
1. Don't scan to the end of alloca instructions in the caller function to
     insert inlined allocas, just insert at the top.  This saves a lot of
     time inlining into functions with a lot of allocas.
  2. Use splice to move the alloca instructions over, instead of remove/insert.
     This allows us to transfer a block at a time, and eliminates a bunch of
     silly symbol table manipulations.

This speeds up the inliner on the testcase in PR209 from 1.73s -> 1.04s (67%)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11118 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 21:33:42 +00:00
Alkis Evlogimenos
f0339396c1 IMULri* instructions do not require their first two registers operands 
to be the same (IOW they are not two address instructions).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11117 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 17:21:04 +00:00
Chris Lattner
44a6807f4f Optimize the case where we are inlining a function that contains only one basic block, 
and that basic block ends with a return instruction.  In this case, we can just splice
the cloned "body" of the function directly into the source basic block, avoiding a lot
of rearrangement and splitBasicBlock's linear scan over the split block.  This speeds up
the inliner on the testcase in PR209 from 2.3s to 1.7s, a 35% reduction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11116 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 04:17:06 +00:00
Chris Lattner
c24a076c6a Adjust to the new BasicBlock ctor, which requires a function parameter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11114 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 03:58:28 +00:00
Chris Lattner
4f05611ed9 Adjust to the new BB ctor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11113 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 03:57:50 +00:00
Chris Lattner
3b332fd376 Remove unneeded code now that splitBasicBlock does the "right thing" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11111 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 03:21:51 +00:00
Chris Lattner
c6aa017eae When splitting a basic block, insert the new half immediately after the first 
half.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11110 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 03:21:31 +00:00
Chris Lattner
5e923dee60 More refactoring. Move alloca instructions and handle invoke instructions 
before we delete the original call site, allowing slight simplifications of
code, but nothing exciting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11109 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 02:51:48 +00:00