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Author SHA1 Message Date
Chris Lattner
9e29384a4b Remove dead vars 
llvm-svn: 28255
 2006-05-12 18:06:45 +00:00
Chris Lattner
9a24639afc remove dead vars 
llvm-svn: 28254
 2006-05-12 18:04:28 +00:00
Chris Lattner
11064741d3 Remove dead variable 
llvm-svn: 28253
 2006-05-12 18:02:04 +00:00
Chris Lattner
474e1b7ef3 Comment out dead variables 
llvm-svn: 28252
 2006-05-12 17:57:54 +00:00
Reid Spencer
ea509eb3ac When reading the symbol table, make sure to delete the ArchiveMember 
created by reading the symbol table.

llvm-svn: 28251
 2006-05-12 17:56:20 +00:00
Chris Lattner
90527550c1 Remove dead var 
llvm-svn: 28250
 2006-05-12 17:50:35 +00:00
Chris Lattner
9930cf948e Remove dead variable 
llvm-svn: 28249
 2006-05-12 17:41:45 +00:00
Chris Lattner
9789688d36 remove dead variable. 
llvm-svn: 28248
 2006-05-12 17:33:59 +00:00
Chris Lattner
2c316c91e8 Remove dead variable. 
llvm-svn: 28247
 2006-05-12 17:31:21 +00:00
Chris Lattner
34893c34e5 Avoid defining dead result 
llvm-svn: 28246
 2006-05-12 17:29:40 +00:00
Chris Lattner
60dfdded64 Remove dead return value. 
llvm-svn: 28245
 2006-05-12 17:28:36 +00:00
Chris Lattner
db5b91f6a8 Compile: 
%tmp152 = setgt uint %tmp144, %tmp149           ; <bool> [#uses=1]
        %tmp159 = setlt uint %tmp144, %tmp149           ; <bool> [#uses=1]
        %bothcond2 = or bool %tmp152, %tmp159           ; <bool> [#uses=1]

To setne, not setune, which causes an assertion fault.

llvm-svn: 28244
 2006-05-12 17:03:46 +00:00
Chris Lattner
bcd2c4f32d Fix PowerPC/2006-05-12-rlwimi-crash.ll 
Nate, please verify that if InsertMask is 0, rlwimi shouldn't be used.
This fixes the crash and causes no PPC testsuite regressions.

llvm-svn: 28243
 2006-05-12 16:29:37 +00:00
Chris Lattner
436447489d new testcase for a recent rlwimi crash. 
llvm-svn: 28242
 2006-05-12 16:28:13 +00:00
Evan Cheng
409dd126bf Noop instruction 
llvm-svn: 28241
 2006-05-12 07:47:00 +00:00
Evan Cheng
3d1e1ffd9b Unused instruction 
llvm-svn: 28240
 2006-05-12 07:42:01 +00:00
Owen Anderson
1245bd420e Add a method to generate a string representation from a TargetData. 
This continues the work on PR 761.

llvm-svn: 28239
 2006-05-12 07:01:44 +00:00
Owen Anderson
29e4d70aed Refactor a bunch of includes so that TargetMachine.h doesn't have to include 
TargetData.h.  This should make recompiles a bit faster with my current
TargetData tinkering.

llvm-svn: 28238
 2006-05-12 06:33:49 +00:00
Owen Anderson
a0a9e4584a Fix some tabbing issues. 
llvm-svn: 28237
 2006-05-12 06:06:55 +00:00
Evan Cheng
f3d7bb7a9e Backing out fix for PR770. Need to re-apply it after live range splitting is possible 
llvm-svn: 28236
 2006-05-12 06:06:34 +00:00
Evan Cheng
c24d0f281c Duh. That could take a long time. 
llvm-svn: 28235
 2006-05-12 06:05:18 +00:00
Owen Anderson
30ffff31f2 Add a new constructor to TargetData that builds a TargetData from its 
string representation.

This is part of PR 761.

llvm-svn: 28234
 2006-05-12 05:49:47 +00:00
Chris Lattner
a500852895 Two simplifications for token factor nodes: simplify tf(x,x) -> x. 
simplify tf(x,y,y,z) -> tf(x,y,z).

llvm-svn: 28233
 2006-05-12 05:01:37 +00:00
Evan Cheng
787496ebcd New scheduling test case. 
llvm-svn: 28232
 2006-05-12 01:59:17 +00:00
Evan Cheng
0b8e4bca80 Add capability to scheduler to commute nodes for profit. 
If a two-address code whose first operand has uses below, it should be commuted
when possible.

llvm-svn: 28230
 2006-05-12 01:58:24 +00:00
Evan Cheng
eb67c0f664 Typo! How did we commute nodes before?! 
llvm-svn: 28229
 2006-05-12 01:46:26 +00:00
Chris Lattner
14cdcc59b8 For extra sanity checking, fill free'd memory with garbage so we know that 
people aren't reusing machine code buffers at all.

llvm-svn: 28228
 2006-05-12 00:03:12 +00:00
Chris Lattner
ecc6d6f334 Fix some bugs in the freelist manipulation code. 
Finally, implement ExecutionEngine::freeMachineCodeForFunction.

llvm-svn: 28227
 2006-05-11 23:56:57 +00:00
Evan Cheng
cb2a0f392c Refactor scheduler code. Move register-reduction list scheduler to a 
separate file. Added an initial implementation of top-down register pressure
reduction list scheduler.

llvm-svn: 28226
 2006-05-11 23:55:42 +00:00
Chris Lattner
81a3c90080 Significantly revamp allocation of machine code to use free lists, real 
allocation policies and much more.  All this complexity, and we have no
functionality change, woo! :)

llvm-svn: 28225
 2006-05-11 23:08:08 +00:00
Chris Lattner
3fad520c62 Refactor some code, making it simpler. 
When doing the initial pass of constant folding, if we get a constantexpr,
simplify the constant expr like we would do if the constant is folded in the
normal loop.

This fixes the missed-optimization regression in
Transforms/InstCombine/getelementptr.ll last night.

llvm-svn: 28224
 2006-05-11 17:11:52 +00:00
Evan Cheng
6a08dd641a Add MOV16_rm / MOV32_rm and MOV16_mr / MOV32_mr to isLoadFromStackSlot and isStoreToStackSlot 
llvm-svn: 28223
 2006-05-11 07:33:49 +00:00
Evan Cheng
e2cebf972d Also add super- register class info. 
llvm-svn: 28222
 2006-05-11 07:31:44 +00:00
Evan Cheng
d6549daf76 Also add super- register classes info. 
llvm-svn: 28221
 2006-05-11 07:30:26 +00:00
Evan Cheng
7028ff2e25 Set weight of zero length intervals to infinite to prevent them from being 
spilled.

llvm-svn: 28220
 2006-05-11 07:29:24 +00:00
Evan Cheng
da04c3aab4 Backing out previous check-in. 
llvm-svn: 28219
 2006-05-11 07:28:16 +00:00
Owen Anderson
0fbf479d8e Fix some problems linking stuff in libTarget. 
llvm-svn: 28218
 2006-05-11 03:10:15 +00:00
Evan Cheng
03fa9eb65e If the live interval legnth is essentially zero, i.e. in every live range 
the use follows def immediately, it doesn't make sense to spill it and
hope it will be easier to allocate for this LI.

llvm-svn: 28217
 2006-05-10 22:30:41 +00:00
Evan Cheng
12417fb32c Update test case 
llvm-svn: 28216
 2006-05-10 19:53:05 +00:00
Chris Lattner
e8fe3f2a08 Two changes: 
1. Implement InstCombine/deadcode.ll by not adding instructions in unreachable
   blocks (due to constants in conditional branches/switches) to the worklist.
   This causes them to be deleted before instcombine starts up, leading to
   better optimization.

2. In the prepass over instructions, do trivial constprop/dce as we go.  This
   has the effect of improving the effectiveness of #1.  In addition, it
   *significantly* speeds up instcombine on test cases with large amounts of
   constant folding code (for example, that produced by code specialization
   or partial evaluation).  In one example, it speeds up instcombine from
   0.0589s to 0.0224s with a release build (a 2.6x speedup).

llvm-svn: 28215
 2006-05-10 19:00:36 +00:00
Chris Lattner
f99a429a12 New testcase, check that dead code doesn't pessimize instcombine 
llvm-svn: 28214
 2006-05-10 18:56:04 +00:00
Chris Lattner
085cfba0ca Fix the PowerPC JIT-only failure on UnitTests/Vector/sumarray-dbl, which is 
really a bad codegen bug that LLC happens to get lucky with. I must chat with
Nate for the proper fix.

llvm-svn: 28213
 2006-05-10 06:38:32 +00:00
Evan Cheng
9f269c1bef Templatify RegReductionPriorityQueue 
llvm-svn: 28212
 2006-05-10 06:16:44 +00:00
Chris Lattner
39290ea978 Add alloca/malloc ctors that don't take array sizes. 
llvm-svn: 28211
 2006-05-10 04:38:35 +00:00
Chris Lattner
32ddb45079 Add an assertion for a common error 
llvm-svn: 28210
 2006-05-10 04:32:43 +00:00
Evan Cheng
2af8a9f980 Watch out for the following case: 
1. Use expects a chain output.
2. Node is expanded into multiple target ops.
3. One of the inner node produces a chain, the outer most one doesn't.

llvm-svn: 28209
 2006-05-10 02:47:57 +00:00
Evan Cheng
0655b538d6 Fix a load folding bug. It is exposed by a multi- resulting instructions 
def : Pat<> pattern.

llvm-svn: 28208
 2006-05-10 00:05:46 +00:00
Nate Begeman
3af196c9b2 Fix PR773 
llvm-svn: 28207
 2006-05-09 18:20:51 +00:00
Chris Lattner
adef4bbf27 This method doesn't need to be virtual, thanks to Reid for pointing this out. 
llvm-svn: 28206
 2006-05-09 17:29:17 +00:00
Chris Lattner
486e0660b7 Fix a regression in my patch from last night that broke the llvmgcc4 build on 
ppc

llvm-svn: 28205
 2006-05-09 16:41:59 +00:00