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Author SHA1 Message Date
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
Jim Laskey
ce72b1755f Reorg for integration with gcc4. Old style debug info will not be passed though 
to SelIDAG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26115 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-11 01:01:30 +00:00
Chris Lattner
c23580969f implement unswitching of loops with switch stmts and selects in them 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26114 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-11 00:43:37 +00:00
Chris Lattner
e825593bf2 Update PHI nodes in successors of exit blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26113 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 23:26:14 +00:00
Chris Lattner
b2bc315eac Reform the unswitching code in terms of edge splitting, not block splitting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26112 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 23:16:39 +00:00
Evan Cheng
23addc061c Nicer code. :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26111 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 22:46:26 +00:00
Evan Cheng
f597dc78f8 Added X86 isel debugging stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26110 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 22:24:32 +00:00
Chris Lattner
ebccc040e5 Remove a level of indirection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26109 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 21:32:11 +00:00
Chris Lattner
81be2e961b Fix a case where UnswitchTrivialCondition broke critical edges with 
phi's in the successors


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26108 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 19:08:15 +00:00
Chris Lattner
ad7a3e6208 Use the auto-generated call matcher. Remove a broken impl of the frameaddr/returnaddr 
intrinsics.

Autogen frameindex matcher


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26107 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 07:35:42 +00:00
Chris Lattner
f613fcb741 Update to new-style flags usage, simplifying the .td file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26106 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 06:58:25 +00:00
Evan Cheng
c57e5c17bc Remove a completed entry; add a new entry about fisttp op 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26105 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 05:48:15 +00:00
Chris Lattner
708e1a5c9c add some notes, move some code around. Implement unswitching of loops 
with branches on partially invariant computations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26104 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 02:30:37 +00:00
Chris Lattner
dd3ee6d086 Move code around to be more logical, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26103 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 02:01:22 +00:00
Chris Lattner
4d1ca946ea When unswitching a trivial loop, do admit we are doing it! :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26102 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 01:36:35 +00:00
Chris Lattner
4c41d49a92 Implement unconditional unswitching of 'trivial' loops, those loops that contain 
branches in their entry block that control whether or not the loop is a noop or not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26101 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 01:24:09 +00:00
Chris Lattner
f4f5f4e56f Simplify control flow a bit, note that unswitch preserves canonical loop form 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26098 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 22:15:42 +00:00
Evan Cheng
7d82d607c5 Match tblgen change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26096 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 22:12:53 +00:00
Evan Cheng
67212a05e6 Call InsertISelMapEntry rather than map insertion operator to prevent overly 
aggrssive inlining. This reduces Select_store frame size from 24k to 10k.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26095 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 22:12:27 +00:00
Evan Cheng
fae9f1cb34 Added SelectionDAG::InsertISelMapEntry(). This is used to workaround the gcc 
problem where it inline the map insertion call too aggressively. Before this
change it was producing a frame size of 24k for Select_store(), now it's down
to 10k (by calling this method rather than calling the map insertion operator).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26094 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 22:11:03 +00:00
Chris Lattner
e487abbfbf Make the threshold a parameter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26093 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 20:15:48 +00:00
Chris Lattner
f262766619 Done 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26091 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 20:00:19 +00:00
Chris Lattner
3ab48ed72f Enable LSR by default for SPARC: it is a clear win. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26090 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 19:59:55 +00:00
Chris Lattner
2f4b898e8c Simplify the loop-unswitch pass, by not even trying to unswitch loops with 
uses of loop values outside the loop.  We need loop-closed SSA form to do
this right, or to use SSA rewriting if we really care.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26089 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 19:14:52 +00:00
Chris Lattner
9a4cacb7c2 Fix 80-column violations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26088 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 07:41:14 +00:00
Chris Lattner
68d5ff2b83 Enhance MVIZ in three ways: 
1. Teach it new tricks: in particular how to propagate through signed shr and sexts.
2. Teach it to return a bitset of known-1 and known-0 bits, instead of just zero.
3. Teach instcombine (AND X, C) to fold when we know all C bits of X.

This implements Regression/Transforms/InstCombine/bittest.ll, and allows
future things to be simplified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26087 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 07:38:58 +00:00
Chris Lattner
12f7de8222 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26086 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 07:38:30 +00:00
Evan Cheng
7e9b26fc73 Match getTargetNode() changes (now return SDNode* instead of SDOperand). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26085 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 07:17:49 +00:00
Evan Cheng
d7805a741d Match getTargetNode() changes (now returns SDNode* instead of SDOperand). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26084 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 07:16:09 +00:00
Evan Cheng
6ae46c4c87 More changes to reduce frame size. 
Move all getTargetNode() out of SelectionDAG.h into SelectionDAG.cpp. This
prevents them from being inlined.
Change getTargetNode() so they return SDNode * instead of SDOperand to prevent
copying. It should also help compilation speed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26083 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 07:15:23 +00:00
Chris Lattner
2d99c81ff0 this apparently passes on linux 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26082 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 07:12:13 +00:00
Chris Lattner
9413678f91 add an option to turn on LSR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26080 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 05:06:36 +00:00
Chris Lattner
239862ce99 simplify this code now that each constant pool entry is not separately allocated 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26079 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 04:49:59 +00:00
Chris Lattner
3029f92051 Adjust to MachineConstantPool interface change: instead of keeping a 
value/alignment pair for each constant, keep a value/offset pair.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26078 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 04:46:04 +00:00
Chris Lattner
04a0f60b23 instead of keeping track of Constant/alignment pairs, actually compute the 
offset of each entry from the start of the constant pool.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26077 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 04:44:32 +00:00
Chris Lattner
fa77d43ba1 rename fields of constant pool entries 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26076 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 04:22:52 +00:00
Chris Lattner
69a9563969 Use a MachineConstantPoolEntry struct instead of a pair to hold 
constant pool entries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26075 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 04:21:49 +00:00
Chris Lattner
74b7d27ab1 Simplify code, alignment must be specified now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26074 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 02:26:04 +00:00
Chris Lattner
e7a1e2152c Assert invariants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26073 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 02:25:42 +00:00
Chris Lattner
c1f523dedd Require an alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26072 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 02:24:25 +00:00
Chris Lattner
948d9668a7 Make MachineConstantPool entries alignments explicit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26071 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 02:23:13 +00:00
Chris Lattner
5ac38d147b Always pass in an alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26070 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 02:19:16 +00:00
Chris Lattner
23c574a841 provide an explicit alignment for cp entries 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26069 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 02:15:30 +00:00
Chris Lattner
ef3640aded Add a comment: value is log2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26068 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 02:10:15 +00:00
Evan Cheng
34167215a8 Change Select() from 
SDOperand Select(SDOperand N);
to
void Select(SDOperand &Result, SDOperand N);


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26067 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-09 00:37:58 +00:00
Chris Lattner
418caa1356 Darwin doesn't support #APP/#NO_APP 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26066 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-08 23:42:22 +00:00
Chris Lattner
d6c65ea924 Add support for assembler directives that wrap inline asm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26065 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-08 23:41:56 +00:00
Chris Lattner
6f4a072e1f Rename BSel -> PPCBSel for the benefit of doxygen users. 
Move the methods out of line.
Remove unused Debug.h stuff.
Teach getNumBytesForInstruction to know the size of an inline asm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26064 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-08 19:33:26 +00:00
Jim Laskey
e35eed2944 Disable this test for the time being as debug is brought up to speed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26063 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-08 18:17:06 +00:00
Chris Lattner
dba382b16a add a simple optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26062 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-08 17:47:22 +00:00