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Author SHA1 Message Date
Evan Cheng
cfe0798a9e New test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35240 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-21 20:14:56 +00:00
Evan Cheng
007b69eeaa fold (truncate (srl (load x), c)) -> (smaller load (x+c/vt bits)) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35239 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-21 20:14:05 +00:00
Reid Spencer
d2920cd3d9 Regenerate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35237 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-21 17:27:53 +00:00
Reid Spencer
91a9d54d9a For PR1243: 
Okay, really fix it this time. Make sure the CurFun.Linkage is set early
and consolidate some duplicate code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35236 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-21 17:26:41 +00:00
Reid Spencer
bb1fd5770d Regenerate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35235 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-21 17:15:50 +00:00
Reid Spencer
3e5affd263 For PR1256: 
Make Signedness information pervasive throughout all types and values.
There is no easy way to get around this. Because the GEP instruction can
index through an arbitrarily complex value structure, it is necessary to
keep track of signedness information throughout that structure. This change
makes Signedness a full class, capable of representing Signedness in
arbitrarily shaped types. The class is then used throughout llvm-upgrade to
track signedness and differentiate between globals, locals, and functions
based on their signedness.

For PR1243:
This patch also removes bogus warnings about renaming internal globals. It
now only emits such warnings when renaming non-internal globals because
they may affect linkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35234 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-21 17:14:36 +00:00
Nicolas Geoffray
82d4264c1f Protect R31's frame offset from being used by callee-saved registers, when R31 
is the frame pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35233 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-21 16:44:14 +00:00
Zhou Sheng
6dbe233959 Fix a bug in getAllOnesValue() which broke 
some test cases for bitwidth > 64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35232 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-21 04:34:37 +00:00
Evan Cheng
768143547b Mark re-materializable instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35230 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-21 00:16:56 +00:00
Evan Cheng
a125cbe839 Updated. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35229 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 22:32:39 +00:00
Evan Cheng
c3c70881cf Potential spiller improvement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35228 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 22:22:38 +00:00
Dale Johannesen
8e59e163db do not share old induction variables when this would result in invalid 
instructions (that would have to be split later)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35227 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 21:54:54 +00:00
Dale Johannesen
69cb9b78f1 maintain LiveIn when splitting blocks (register scavenging needs it) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35226 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 21:35:06 +00:00
Devang Patel
cbdfb8a9d5 DominanceFrontier::calculate(). 
Avoid recursion, Use iterative algorithm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35225 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 21:25:31 +00:00
Jeff Cohen
c01a53007a Fix some VC++ warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35224 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 20:43:18 +00:00
Jeff Cohen
09dfd8e19d Fix (and simplify) 48-bit byte swap. 
Get pos/neg infinity the correct way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35223 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 20:42:36 +00:00
Devang Patel
58efcd3bcd LoopSimplify::FindPHIToPartitionLoops() 
Use ETForest instead of DominatorSet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35222 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 20:19:48 +00:00
Devang Patel
3b57b6f36e LoopSimplify::FindPHIToPartitionLoops() 
Use ETForest instead of DominatorSet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35221 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 20:18:12 +00:00
Lauro Ramos Venancio
a0a26b7454 Code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35220 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 20:09:03 +00:00
Evan Cheng
29a68fb5b7 Minor bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35219 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 19:32:11 +00:00
Lauro Ramos Venancio
64c88d741e bugfix: When the source register of CALL_NOLINK was LR, the following code was emitted: 
mov lr, pc
    bx lr
So, the function was not called.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35218 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 17:57:23 +00:00
Chris Lattner
431b4d51a7 llvm-gcc now requires -fnested-functions to enable them in C. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35217 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 17:34:31 +00:00
Reid Spencer
6dd81dadb2 Break up huge line so that this file is almost readable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35216 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 17:27:19 +00:00
Reid Spencer
9eba7a2cb5 Regenerate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35215 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 17:19:31 +00:00
Reid Spencer
810cce8434 Don't delete things before their last use (avoids bad reads). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35214 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 17:18:33 +00:00
Lauro Ramos Venancio
8334b9fa3b CopyToReg source operand can be a physical register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35213 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 16:46:44 +00:00
Duncan Sands
3a7f7ab73f Test handling of structs with multiple variable-sized fields. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35212 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 14:13:20 +00:00
Zhou Sheng
2cde46cb66 Simplify isHighOnes(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35211 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 12:49:06 +00:00
Duncan Sands
07073e5f70 Ada testcase for structs with multiple variable sized fields. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35210 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 09:54:02 +00:00
Duncan Sands
887839d755 Test that ARRAY_RANGE_REF returns an array not an element. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35209 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 09:50:42 +00:00
Evan Cheng
2638e1a6b9 First cut trivial re-materialization support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35208 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 08:13:50 +00:00
Evan Cheng
c70d1849b7 Make two piece constant generation as a single instruction. It's re-materialized as a load from constantpool. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35207 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 08:11:30 +00:00
Evan Cheng
5603dcf21e New entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35206 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 08:10:17 +00:00
Evan Cheng
bf2c8b3c96 Added MRegisterInfo hook to re-materialize an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35205 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 08:09:38 +00:00
Chris Lattner
a16b7cb1d3 Two changes: 
1) codegen a shift of a register as a shift, not an LEA.
2) teach the RA to convert a shift to an LEA instruction if it wants something
   in three-address form.

This gives us asm diffs like:

-       leal (,%eax,4), %eax
+       shll $2, %eax

which is faster on some processors and smaller on all of them.

and, more interestingly:

-       movl 24(%esi), %eax
-       leal (,%eax,4), %edi
+       movl 24(%esi), %edi
+       shll $2, %edi

Without #2, #1 was a significant pessimization in some cases.

This implements CodeGen/X86/shift-codegen.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35204 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 06:08:29 +00:00
Chris Lattner
ec13dd5cc9 These functions should use shll, not lea. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35203 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 06:01:41 +00:00
Chris Lattner
1719e13da0 fix indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35202 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 02:25:53 +00:00
Zhou Sheng
e51ffcf27f Correct the name: isStrictPositive --> isStrictlyPositive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35201 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 02:18:16 +00:00
Chris Lattner
b9174dd5dc Add a dtor to fix leaks from all clients of BitVector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35200 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 02:10:56 +00:00
Reid Spencer
66728ef3d2 Regenerate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35199 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 01:13:36 +00:00
Reid Spencer
2c9df214c7 Plug some PATypeHolder memory leaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35198 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 01:13:00 +00:00
Dale Johannesen
dc42f48ea9 use types of loads and stores, not address, in CheckForIVReuse 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35197 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 00:47:50 +00:00
Dale Johannesen
80dae195c7 fix obvious comment bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35196 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 00:30:56 +00:00
Chris Lattner
91857da2f5 Fix a nasty memory leak, caused by my revamp of the value symbol table. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35195 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 00:18:10 +00:00
Reid Spencer
5f6a89562d Make isOneBitSet faster by using APInt::isPowerOf2. Thanks Chris. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35194 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 00:16:52 +00:00
Reid Spencer
8cf47cef5c Make this test a little simpler/faster. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35193 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-19 23:36:19 +00:00
Reid Spencer
1e8ae156e0 Add test case for PR1261, currently XFAILed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35192 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-19 23:28:16 +00:00
Devang Patel
2e8f27d0bd Document LoopPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35191 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-19 22:21:25 +00:00
Reid Spencer
05227d88af APIntify the isHighOnes utility function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35190 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-19 21:29:50 +00:00
Reid Spencer
adf2a206ec Fix coding standards violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35189 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-19 21:19:02 +00:00