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Author SHA1 Message Date
Evan Cheng
c55e151e45 Rename a test-not-cmp.ll to cmp-test.ll; add a test. 
llvm-svn: 30243
 2006-09-11 02:33:29 +00:00
Evan Cheng
f82eb13e3b 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).

llvm-svn: 30242
 2006-09-11 02:24:43 +00:00
Evan Cheng
cfd7b147cf 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.

llvm-svn: 30241
 2006-09-11 02:19:56 +00:00
Nate Begeman
1109e4a222 Behold, more work on relocations. Things are looking pretty good now. 
llvm-svn: 30240
 2006-09-10 23:03:44 +00:00
Anton Korobeynikov
4141c7992e Removed unnecessary Mangler creation. 
llvm-svn: 30239
 2006-09-10 21:17:03 +00:00
Chris Lattner
02d50a2254 add a testcase for this commit: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20050606/026673.html 
llvm-svn: 30238
 2006-09-10 18:52:25 +00:00
Chris Lattner
2921612126 Allow tail duplication in more cases, relaxing the previous restriction a 
bit.  This fixes Regression/Transforms/TailDup/MergeTest.ll

llvm-svn: 30237
 2006-09-10 18:17:58 +00:00
Chris Lattner
480465a171 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.

llvm-svn: 30236
 2006-09-10 06:36:57 +00:00
Nick Lewycky
3bfe103166 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.

llvm-svn: 30235
 2006-09-10 02:27:07 +00:00
Chris Lattner
91d21d85e8 Implement Transforms/InstCombine/hoist_instr.ll 
llvm-svn: 30234
 2006-09-09 22:02:56 +00:00
Chris Lattner
2343a5c79f new testcase 
llvm-svn: 30233
 2006-09-09 22:02:25 +00:00
Chris Lattner
1f4901d69e Move ipsccp pass earlier to clean up obvious bogosities 
llvm-svn: 30232
 2006-09-09 21:30:13 +00:00
Chris Lattner
2122c2e124 Make inlining costs more accurate. 
llvm-svn: 30231
 2006-09-09 20:40:44 +00:00
Chris Lattner
6847781b3e Turn div X, (Cond ? Y : 0) -> div X, Y 
This implements select.ll::test18.

llvm-svn: 30230
 2006-09-09 20:26:32 +00:00
Chris Lattner
053797e5c7 new testcase 
llvm-svn: 30229
 2006-09-09 20:26:04 +00:00
Jim Laskey
a482c765bb Missing anchor 
llvm-svn: 30227
 2006-09-09 09:10:37 +00:00
Chris Lattner
e4ef84f421 Add cbe support for powi 
llvm-svn: 30226
 2006-09-09 06:17:12 +00:00
Chris Lattner
b935214653 Implement the fpowi now by lowering to a libcall 
llvm-svn: 30225
 2006-09-09 06:03:30 +00:00
Chris Lattner
00b84b6eab (indirect) test for the __builtin_powi builtin which we now support. 
llvm-svn: 30224
 2006-09-09 06:02:16 +00:00
Chris Lattner
7005757ced Implement new fpowi node 
llvm-svn: 30223
 2006-09-09 05:55:44 +00:00
Chris Lattner
8536526496 Allow targets to custom lower expanded BIT_CONVERT's 
llvm-svn: 30217
 2006-09-09 00:20:27 +00:00
Nate Begeman
2dfa13e74f 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.

llvm-svn: 30207
 2006-09-08 22:42:09 +00:00
Evan Cheng
59e25ca829 Fixed a FuseTwoAddrInst() bug: consider GlobalAddress and JumpTableIndex 
in addition to immediate operands.

llvm-svn: 30205
 2006-09-08 21:08:13 +00:00
Chris Lattner
d269774664 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.

llvm-svn: 30204
 2006-09-08 20:21:31 +00:00
Chris Lattner
a531dd1879 This fixes Benchmarks/Prolangs-C/unix-smail 
llvm-svn: 30198
 2006-09-08 19:11:11 +00:00
Chris Lattner
16e4937a31 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.

llvm-svn: 30197
 2006-09-08 19:03:30 +00:00
Chris Lattner
818f2a71e8 ok this really works :) 
llvm-svn: 30195
 2006-09-08 18:33:49 +00:00
Devang Patel
325ff2c001 Remove redundant include. 
llvm-svn: 30194
 2006-09-08 18:20:25 +00:00
Chris Lattner
701a3083ec Need to include Makefile.config to get the value of $(OS). Add a comment. 
llvm-svn: 30193
 2006-09-08 18:08:50 +00:00
Anton Korobeynikov
c63a56537f Enabling LTO building on Darwin only right now. This probably should be 
removed after 'PIC vs non-PIC' problem solution

llvm-svn: 30192
 2006-09-08 18:00:43 +00:00
Rafael Espindola
20146be5e8 implement shl and sra 
llvm-svn: 30191
 2006-09-08 17:36:23 +00:00
Chris Lattner
6366d97d9e Use __USER_LABEL_PREFIX__ to get the prefix added by the current host. 
llvm-svn: 30190
 2006-09-08 17:03:56 +00:00
Rafael Espindola
9ffcdb8ab7 add the eor (xor) instruction 
llvm-svn: 30189
 2006-09-08 16:59:47 +00:00
Jim Laskey
8cbf601f06 Missing tab 
llvm-svn: 30188
 2006-09-08 13:06:56 +00:00
Rafael Espindola
faf67d2718 fix select.ll to always test a select node 
llvm-svn: 30187
 2006-09-08 12:52:50 +00:00
Rafael Espindola
af1689d5a5 implement unconditional branches 
fix select.ll

llvm-svn: 30186
 2006-09-08 12:47:03 +00:00
Evan Cheng
9d17d65cc4 Generated isel should favors explicit constant operand (+2) over an operand with a predicate (+1). 
llvm-svn: 30180
 2006-09-08 07:26:39 +00:00
Evan Cheng
384c254470 New test case. 
llvm-svn: 30179
 2006-09-08 07:24:20 +00:00
Evan Cheng
100e48fe40 Remove TEST64mr. It's same as TEST64rm since and is commutative. 
llvm-svn: 30178
 2006-09-08 06:56:55 +00:00
Evan Cheng
15dd42884e Committing X86-64 support. 
llvm-svn: 30177
 2006-09-08 06:48:29 +00:00
Chris Lattner
98c39f8e5b add powi intrinsics. 
llvm-svn: 30176
 2006-09-08 06:43:00 +00:00
Chris Lattner
06c3df5cb1 new powi intrinsic 
llvm-svn: 30175
 2006-09-08 06:34:02 +00:00
Nate Begeman
bb053826f9 We actually do support object file writing, so don't return true (error) 
llvm-svn: 30173
 2006-09-08 03:42:15 +00:00
Evan Cheng
f56e6f2861 Add a new test case for 'undef' shuffles. 
llvm-svn: 30172
 2006-09-08 01:54:32 +00:00
Evan Cheng
da0f93c5af - 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).

llvm-svn: 30171
 2006-09-08 01:50:06 +00:00
Jim Laskey
160a8aa339 1. Remove condition on delete. 
2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.

llvm-svn: 30169
 2006-09-07 23:39:26 +00:00
Devang Patel
2e8547542f Untabify. 
llvm-svn: 30168
 2006-09-07 23:29:19 +00:00
Devang Patel
6971b40067 Use iterative do-while loop instead of recursive DFSPass calls to 
reduce amount of stack space used at runtime.

llvm-svn: 30167
 2006-09-07 23:22:37 +00:00
Chris Lattner
f4c05c3170 add a new value for the command line optn 
llvm-svn: 30165
 2006-09-07 22:32:28 +00:00
Chris Lattner
6d59598acc Fix a cross-build issue. The asmsyntax shouldn't be affected by the build 
host, it should be affected by the target.  Allow the command line option to
override in either case.

llvm-svn: 30164
 2006-09-07 22:29:41 +00:00