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Author SHA1 Message Date
Evan Cheng
0f4aa6ee20 Update README file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30244 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 05:25:15 +00:00
Evan Cheng
23f8497724 Rename a test-not-cmp.ll to cmp-test.ll; add a test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30243 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 02:33:29 +00:00
Evan Cheng
966fd37ba5 1) With X86 lowering change, the following can no longer happen since 
the branch's chain is also produced by cmp.
          [ch, r : ld]
             ^ ^
             | |
      [XX]--/   \- [flag : cmp]
       ^             ^
       |             |
       \---[br flag]-

Remove an isel check which prevents loads from being folded into cmp / test
instructions.

2) Whenever possible, delete a selected node to allow more load folding
opportunities. Note not all nodes can be deleted after it has been
selected. Some may have simply morphed; some have not changed at all (e.g.
EntryToken).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30242 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 02:24:43 +00:00
Evan Cheng
734503be59 X86ISD::CMP now produces a chain as well as a flag. Make that the chain 
operand of a conditional branch to allow load folding into CMP / TEST
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30241 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-11 02:19:56 +00:00
Nate Begeman
019f851ab2 Behold, more work on relocations. Things are looking pretty good now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30240 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-10 23:03:44 +00:00
Anton Korobeynikov
f369dd26fb Removed unnecessary Mangler creation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30239 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-10 21:17:03 +00:00
Chris Lattner
6a26847715 add a testcase for this commit: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20050606/026673.html 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30238 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-10 18:52:25 +00:00
Chris Lattner
dfa1af0513 Allow tail duplication in more cases, relaxing the previous restriction a 
bit.  This fixes Regression/Transforms/TailDup/MergeTest.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30237 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-10 18:17:58 +00:00
Chris Lattner
c66764c007 This code was trying too hard. By eliminating redundant edges in the CFG 
due to switch cases going to the same place, it make #pred != #phi entries,
breaking live interval analysis.

This fixes 458.sjeng on x86 with llc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30236 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-10 06:36:57 +00:00
Nick Lewycky
dc08cd56c4 Replace EquivalenceClasses with a custom-built data structure. Many common 
operations (like findProperties) should be faster, at the expense of
unionSets being slower in cases that are rare in practise.

Don't erase a dead Instruction. This fixes a memory corruption issue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30235 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-10 02:27:07 +00:00
Chris Lattner
2a86f3b744 Implement Transforms/InstCombine/hoist_instr.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30234 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 22:02:56 +00:00
Chris Lattner
4b78a54f38 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30233 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 22:02:25 +00:00
Chris Lattner
cf508bc38e Move ipsccp pass earlier to clean up obvious bogosities 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30232 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 21:30:13 +00:00
Chris Lattner
7b166d9969 Make inlining costs more accurate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30231 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 20:40:44 +00:00
Chris Lattner
8e49e08f4b Turn div X, (Cond ? Y : 0) -> div X, Y 
This implements select.ll::test18.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30230 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 20:26:32 +00:00
Chris Lattner
bbf4636200 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30229 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 20:26:04 +00:00
Jim Laskey
f1b5adbfcc Missing anchor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30227 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 09:10:37 +00:00
Chris Lattner
1e14289ef9 Add cbe support for powi 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30226 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 06:17:12 +00:00
Chris Lattner
6ddf8ed6fe Implement the fpowi now by lowering to a libcall 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30225 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 06:03:30 +00:00
Chris Lattner
c0c9c5e443 (indirect) test for the __builtin_powi builtin which we now support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30224 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 06:02:16 +00:00
Chris Lattner
dd2afb0e1f Implement new fpowi node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30223 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 05:55:44 +00:00
Chris Lattner
f3f333dbd6 Allow targets to custom lower expanded BIT_CONVERT's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30217 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-09 00:20:27 +00:00
Nate Begeman
94be248dbb First pass at supporting relocations. Relocations are written correctly to 
the file now, however the relocated address is currently wrong.  Fixing
that will require some deep pondering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30207 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 22:42:09 +00:00
Evan Cheng
6f34b43292 Fixed a FuseTwoAddrInst() bug: consider GlobalAddress and JumpTableIndex 
in addition to immediate operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30205 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 21:08:13 +00:00
Chris Lattner
0c5b8dac79 Non-allocatable physregs can be killed and dead, but don't treat them as 
safe for later allocation.  This fixes McCat/18-imp with llc-beta.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30204 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 20:21:31 +00:00
Chris Lattner
cc406328bf This fixes Benchmarks/Prolangs-C/unix-smail 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30198 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 19:11:11 +00:00
Chris Lattner
45d5788123 Fix a bunch of llc-beta failures on x86 yesterday. Don't allow selection 
of unallocatable registers, just because an alias is allocatable.  We were
picking registers like SIL just because ESI was being used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30197 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 19:03:30 +00:00
Chris Lattner
cf8cb6d564 ok this really works :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30195 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 18:33:49 +00:00
Devang Patel
aa91978ea2 Remove redundant include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30194 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 18:20:25 +00:00
Chris Lattner
70c3537a92 Need to include Makefile.config to get the value of $(OS). Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30193 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 18:08:50 +00:00
Anton Korobeynikov
294492b25f Enabling LTO building on Darwin only right now. This probably should be 
removed after 'PIC vs non-PIC' problem solution


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30192 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 18:00:43 +00:00
Rafael Espindola
0a200600e7 implement shl and sra 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30191 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 17:36:23 +00:00
Chris Lattner
40f4ba5e71 Use __USER_LABEL_PREFIX__ to get the prefix added by the current host. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30190 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 17:03:56 +00:00
Rafael Espindola
4e30764d55 add the eor (xor) instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30189 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 16:59:47 +00:00
Jim Laskey
f45c25f720 Missing tab 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30188 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 13:06:56 +00:00
Rafael Espindola
e246fd953e fix select.ll to always test a select node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30187 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 12:52:50 +00:00
Rafael Espindola
5c2aa0a4d8 implement unconditional branches 
fix select.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30186 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 12:47:03 +00:00
Evan Cheng
6cec34e094 Generated isel should favors explicit constant operand (+2) over an operand with a predicate (+1). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30180 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 07:26:39 +00:00
Evan Cheng
fa12482d0c New test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30179 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 07:24:20 +00:00
Evan Cheng
36978b9c61 Remove TEST64mr. It's same as TEST64rm since and is commutative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30178 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 06:56:55 +00:00
Evan Cheng
25ab690a43 Committing X86-64 support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30177 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 06:48:29 +00:00
Chris Lattner
1e5fb6928c add powi intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30176 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 06:43:00 +00:00
Chris Lattner
f4d252dc3a new powi intrinsic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30175 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 06:34:02 +00:00
Nate Begeman
6fe6084ebf We actually do support object file writing, so don't return true (error) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30173 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 03:42:15 +00:00
Evan Cheng
e119691885 Add a new test case for 'undef' shuffles. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30172 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 01:54:32 +00:00
Evan Cheng
8cf723d8eb - Identify a vector_shuffle that can be turned into an undef, e.g. 
shuffle V1, <undef>, <undef, undef, 4, 5>
- Fix some suspicious logic into LowerVectorShuffle that cause less than
  optimal code by failing to identify MOVL (move to lowest element of a
  vector).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30171 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 01:50:06 +00:00
Jim Laskey
fde1b3bb2f 1. Remove condition on delete. 
2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30169 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 23:39:26 +00:00
Devang Patel
f93f68347f Untabify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30168 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 23:29:19 +00:00
Devang Patel
c8719e9353 Use iterative do-while loop instead of recursive DFSPass calls to 
reduce amount of stack space used at runtime.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30167 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 23:22:37 +00:00
Chris Lattner
2dd538c2d2 add a new value for the command line optn 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30165 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 22:32:28 +00:00