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Author SHA1 Message Date
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
Chris Lattner
3e6a35076e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28213 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-10 06:38:32 +00:00
Evan Cheng
90db0358bb Templatify RegReductionPriorityQueue 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28212 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-10 06:16:44 +00:00
Chris Lattner
b77780e11e Add alloca/malloc ctors that don't take array sizes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28211 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-10 04:38:35 +00:00
Chris Lattner
e46749cce0 Add an assertion for a common error 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28210 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-10 04:32:43 +00:00
Evan Cheng
3eff89bf89 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28209 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-10 02:47:57 +00:00
Evan Cheng
045953c37a Fix a load folding bug. It is exposed by a multi- resulting instructions 
def : Pat<> pattern.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28208 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-10 00:05:46 +00:00
Nate Begeman
ec57fd91af Fix PR773 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28207 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-09 18:20:51 +00:00
Chris Lattner
631a19d894 This method doesn't need to be virtual, thanks to Reid for pointing this out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28206 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-09 17:29:17 +00:00
Chris Lattner
c8d37c6e14 Fix a regression in my patch from last night that broke the llvmgcc4 build on 
ppc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28205 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-09 16:41:59 +00:00
Chris Lattner
219f1b535d Indent .data/.text in the .s file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28204 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-09 16:15:00 +00:00
Evan Cheng
506b94f8cd Another instruction scheduling test case 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28203 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-09 07:20:24 +00:00
Evan Cheng
b63b067925 Add pseudo dependency to force a def&use operand to be scheduled last (unless 
the distance between the def and another use is much longer). This is under
option control for now "-sched-lower-defnuse".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28201 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-09 07:13:34 +00:00
Evan Cheng
60e8c71c9f Debugging info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28200 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-09 06:55:15 +00:00
Evan Cheng
8399c5cbe4 Remove a completed entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28199 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-09 06:54:05 +00:00
Evan Cheng
5255b39b21 Test case for PR770 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28198 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-09 06:48:12 +00:00