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24641 Commits

Author SHA1 Message Date
Chris Lattner 22f95b74ba Dead variable 
llvm-svn: 28265
 2006-05-12 21:12:22 +00:00
Chris Lattner ae48a894b1 Remove dead var, fix bad override. 
llvm-svn: 28264
 2006-05-12 21:09:57 +00:00
Reid Spencer c220ecfbb9 Don't use old-style casts. This prevents compiler warnings when CommandLine.h 
is used in projects that have stricter warning control than LLVM. This also
helps us find casts more easily if we ever need to.

llvm-svn: 28263
 2006-05-12 19:20:55 +00:00
Evan Cheng a726fc6dbf If the register allocator cannot find a register to spill, try the aliases. If 
that still fails (because all the register spill weights are inf), just grab
one.

llvm-svn: 28262
 2006-05-12 19:07:46 +00:00
Evan Cheng db30388d48 Remove dead code 
llvm-svn: 28261
 2006-05-12 19:03:56 +00:00
Chris Lattner 227d442d01 Fix accidentally committed patch. 
llvm-svn: 28260
 2006-05-12 18:20:39 +00:00
Chris Lattner d63ec521c5 Actually override the right method. :) 
Bug identified by coverity.

llvm-svn: 28259
 2006-05-12 18:19:25 +00:00
Chris Lattner 132322b96e remove dead variable. 
llvm-svn: 28258
 2006-05-12 18:17:25 +00:00
Chris Lattner 1971e8a77b Fix iterator invalidation bug, identified by Coverity. 
llvm-svn: 28257
 2006-05-12 18:13:11 +00:00
Chris Lattner 1fe2d2c600 Fix a hypothetical memory leak, identified by Coverity. In practice, this 
object is never deleted though.

llvm-svn: 28256
 2006-05-12 18:10:12 +00:00
Chris Lattner 53cdb2f2b0 Remove dead vars 
llvm-svn: 28255
 2006-05-12 18:06:45 +00:00
Chris Lattner da076e41ab remove dead vars 
llvm-svn: 28254
 2006-05-12 18:04:28 +00:00
Chris Lattner fe211deedf Remove dead variable 
llvm-svn: 28253
 2006-05-12 18:02:04 +00:00
Chris Lattner afe72481f6 Comment out dead variables 
llvm-svn: 28252
 2006-05-12 17:57:54 +00:00
Reid Spencer 69fb378858 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 936cd3390d Remove dead var 
llvm-svn: 28250
 2006-05-12 17:50:35 +00:00
Chris Lattner ce9ac0cdab Remove dead variable 
llvm-svn: 28249
 2006-05-12 17:41:45 +00:00
Chris Lattner f76c42776d remove dead variable. 
llvm-svn: 28248
 2006-05-12 17:33:59 +00:00
Chris Lattner 9cd2ef34e6 Remove dead variable. 
llvm-svn: 28247
 2006-05-12 17:31:21 +00:00
Chris Lattner 36d256f170 Avoid defining dead result 
llvm-svn: 28246
 2006-05-12 17:29:40 +00:00
Chris Lattner 917f8fd1d9 Remove dead return value. 
llvm-svn: 28245
 2006-05-12 17:28:36 +00:00
Chris Lattner 8c02c3f41a 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 a296339c87 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 6372a2acde new testcase for a recent rlwimi crash. 
llvm-svn: 28242
 2006-05-12 16:28:13 +00:00
Evan Cheng 21c7c23d7e Noop instruction 
llvm-svn: 28241
 2006-05-12 07:47:00 +00:00
Evan Cheng e2c1aedc23 Unused instruction 
llvm-svn: 28240
 2006-05-12 07:42:01 +00:00
Owen Anderson 5fea9f0a93 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 8c2c1e90c4 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 d7c77b8c56 Fix some tabbing issues. 
llvm-svn: 28237
 2006-05-12 06:06:55 +00:00
Evan Cheng 6a6886185b 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 095c9d9b7f Duh. That could take a long time. 
llvm-svn: 28235
 2006-05-12 06:05:18 +00:00
Owen Anderson 8d7774cb1d 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 66adee93aa 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 1501b9f829 New scheduling test case. 
llvm-svn: 28232
 2006-05-12 01:59:17 +00:00
Evan Cheng afed73eebe 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 c30a5558f2 Typo! How did we commute nodes before?! 
llvm-svn: 28229
 2006-05-12 01:46:26 +00:00
Chris Lattner 22acb80971 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 3c729b9e5d 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 d38c22bdd3 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 873ef133ce 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 1443bc52be 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 dd7230c9e0 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 0da0c50f1e Also add super- register class info. 
llvm-svn: 28222
 2006-05-11 07:31:44 +00:00
Evan Cheng 229a6d0026 Also add super- register classes info. 
llvm-svn: 28221
 2006-05-11 07:30:26 +00:00
Evan Cheng 47926aff96 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 db6aa4896b Backing out previous check-in. 
llvm-svn: 28219
 2006-05-11 07:28:16 +00:00
Owen Anderson 68afff2dcd Fix some problems linking stuff in libTarget. 
llvm-svn: 28218
 2006-05-11 03:10:15 +00:00
Evan Cheng 6ad040a6bc 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 47a57ac4f9 Update test case 
llvm-svn: 28216
 2006-05-10 19:53:05 +00:00
Chris Lattner a36ee4ea34 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