Commit Graph

24881 Commits

Author SHA1 Message Date
Chris Lattner
b65e7256ed Remove dead var, fix bad override.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28264 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 21:09:57 +00:00
Reid Spencer
3e41da29fb 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28263 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 19:20:55 +00:00
Evan Cheng
3b6d56cab3 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28262 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 19:07:46 +00:00
Evan Cheng
0bbac9ffd1 Remove dead code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28261 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 19:03:56 +00:00
Chris Lattner
095cc37e22 Fix accidentally committed patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28260 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:20:39 +00:00
Chris Lattner
666b042658 Actually override the right method. :)
Bug identified by coverity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28259 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:19:25 +00:00
Chris Lattner
dd28ba2284 remove dead variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28258 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:17:25 +00:00
Chris Lattner
2b80e8d635 Fix iterator invalidation bug, identified by Coverity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28257 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:13:11 +00:00
Chris Lattner
bbea1245a1 Fix a hypothetical memory leak, identified by Coverity. In practice, this
object is never deleted though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28256 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:10:12 +00:00
Chris Lattner
b5d9319bc5 Remove dead vars
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28255 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:06:45 +00:00
Chris Lattner
f1343c1b79 remove dead vars
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28254 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:04:28 +00:00
Chris Lattner
c485e55c65 Remove dead variable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28253 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 18:02:04 +00:00
Chris Lattner
5eed34d208 Comment out dead variables
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28252 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:57:54 +00:00
Reid Spencer
ffb4d62720 When reading the symbol table, make sure to delete the ArchiveMember
created by reading the symbol table.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28251 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:56:20 +00:00
Chris Lattner
9dcb780e23 Remove dead var
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28250 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:50:35 +00:00
Chris Lattner
82db0696a1 Remove dead variable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28249 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:41:45 +00:00
Chris Lattner
b57b516f6d remove dead variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28248 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:33:59 +00:00
Chris Lattner
27aaa398ee Remove dead variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28247 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:31:21 +00:00
Chris Lattner
433698bbbc Avoid defining dead result
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28246 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:29:40 +00:00
Chris Lattner
b923b2e04b Remove dead return value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28245 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:28:36 +00:00
Chris Lattner
e41102bb61 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28244 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 17:03:46 +00:00
Chris Lattner
0949ed5412 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28243 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 16:29:37 +00:00
Chris Lattner
83cdf40144 new testcase for a recent rlwimi crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28242 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 16:28:13 +00:00
Evan Cheng
9812f1ca97 Noop instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28241 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 07:47:00 +00:00
Evan Cheng
d9d4518a86 Unused instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28240 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 07:42:01 +00:00
Owen Anderson
2577c22131 Add a method to generate a string representation from a TargetData.
This continues the work on PR 761.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28239 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 07:01:44 +00:00
Owen Anderson
07000c6f01 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28238 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 06:33:49 +00:00
Owen Anderson
571a13f3e7 Fix some tabbing issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28237 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 06:06:55 +00:00
Evan Cheng
647c15e58e Backing out fix for PR770. Need to re-apply it after live range splitting is possible
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28236 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 06:06:34 +00:00
Evan Cheng
626da3d9ae Duh. That could take a long time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28235 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 06:05:18 +00:00
Owen Anderson
8f60c56a06 Add a new constructor to TargetData that builds a TargetData from its
string representation.

This is part of PR 761.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28234 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 05:49:47 +00:00
Chris Lattner
21a57dc751 Two simplifications for token factor nodes: simplify tf(x,x) -> x.
simplify tf(x,y,y,z) -> tf(x,y,z).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28233 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 05:01:37 +00:00
Evan Cheng
29225b1d32 New scheduling test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28232 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 01:59:17 +00:00
Evan Cheng
13d41b9d72 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28230 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 01:58:24 +00:00
Evan Cheng
31ff1ff348 Typo! How did we commute nodes before?!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28229 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 01:46:26 +00:00
Chris Lattner
a5f0419b4e For extra sanity checking, fill free'd memory with garbage so we know that
people aren't reusing machine code buffers at all.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28228 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12 00:03:12 +00:00
Chris Lattner
9f3d1ba9ad Fix some bugs in the freelist manipulation code.
Finally, implement ExecutionEngine::freeMachineCodeForFunction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28227 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 23:56:57 +00:00
Evan Cheng
e165a78551 Refactor scheduler code. Move register-reduction list scheduler to a
separate file. Added an initial implementation of top-down register pressure
reduction list scheduler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28226 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 23:55:42 +00:00
Chris Lattner
e993cc27ad 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! :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28225 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 23:08:08 +00:00
Chris Lattner
8c8c66a8cd 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28224 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 17:11:52 +00:00
Evan Cheng
f4df680ad4 Add MOV16_rm / MOV32_rm and MOV16_mr / MOV32_mr to isLoadFromStackSlot and isStoreToStackSlot
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28223 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 07:33:49 +00:00
Evan Cheng
c3580cace2 Also add super- register class info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28222 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 07:31:44 +00:00
Evan Cheng
2ca0efd71a Also add super- register classes info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28221 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 07:30:26 +00:00
Evan Cheng
993141402f Set weight of zero length intervals to infinite to prevent them from being
spilled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28220 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 07:29:24 +00:00
Evan Cheng
5d02eafaf2 Backing out previous check-in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28219 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 07:28:16 +00:00
Owen Anderson
211b9a2580 Fix some problems linking stuff in libTarget.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28218 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11 03:10:15 +00:00
Evan Cheng
1f300190f3 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28217 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-10 22:30:41 +00:00
Evan Cheng
e41ebccafd Update test case
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28216 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-10 19:53:05 +00:00
Chris Lattner
f4f5a77fdc 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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28215 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-10 19:00:36 +00:00
Chris Lattner
99266d81a2 New testcase, check that dead code doesn't pessimize instcombine
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28214 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-10 18:56:04 +00:00