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17809 Commits

Author SHA1 Message Date
Evan Cheng
dc9f790abd If a virtual register is already marked alive in this block, that means it is 
alive in one of the successor block. Do not add it to the kill list.

llvm-svn: 35041
 2007-03-09 09:48:56 +00:00
Evan Cheng
e7ba7ee5d8 Print preds / succs BB numbers. 
llvm-svn: 35040
 2007-03-09 08:29:08 +00:00
Evan Cheng
0049744cd8 Avoid variable shadowing. 
llvm-svn: 35039
 2007-03-09 06:02:17 +00:00
Bill Wendling
4e2fff5898 Don't use std::hex. 
llvm-svn: 35038
 2007-03-08 23:37:24 +00:00
Bill Wendling
80cc8c4502 Don't use a cast. It causes an error on some platforms. 
llvm-svn: 35037
 2007-03-08 23:26:50 +00:00
Evan Cheng
7ef8db2fb5 Implement inline asm modifier c. 
llvm-svn: 35035
 2007-03-08 22:42:46 +00:00
Chris Lattner
dfe5b3bd1d implement support for floating point constants used as inline asm memory operands. 
llvm-svn: 35033
 2007-03-08 22:29:47 +00:00
Bill Wendling
5fef3fd7e7 Added "padd*" support for MMX. Added MMX move stuff to X86InstrInfo so that 
moves, loads, etc. are recognized.

llvm-svn: 35031
 2007-03-08 22:09:11 +00:00
Evan Cheng
6445ce2423 Fix a typo. 
llvm-svn: 35030
 2007-03-08 21:59:30 +00:00
Devang Patel
94228897e7 Speed Up Pass Manager. 
- Check Immutableness before searching PreservedSet.
- Avoid unnecessary traversal while setting Last User.

llvm-svn: 35028
 2007-03-08 19:05:01 +00:00
Zhou Sheng
acc59870f7 Fix a bug in function ComputeMaskedBits(). 
llvm-svn: 35027
 2007-03-08 15:15:18 +00:00
Evan Cheng
7d528d089c Putting more constants which do not contain relocations into .literal{4|8|16} 
llvm-svn: 35026
 2007-03-08 08:31:54 +00:00
Chris Lattner
7e516796f6 make this fail even in non-assert builds. 
llvm-svn: 35025
 2007-03-08 07:07:03 +00:00
Chris Lattner
66843dbef9 This appears correct, enable it so we can see perf changes on testers 
llvm-svn: 35024
 2007-03-08 07:03:55 +00:00
Chris Lattner
049f21257d Second half of PR1226. This is currently still disabled, until I have a chance to 
do the correctness/performance analysis testing.

llvm-svn: 35023
 2007-03-08 06:36:54 +00:00
Zhou Sheng
37cb2e2d53 Fix a bug in APIntified ComputeMaskedBits(). 
llvm-svn: 35022
 2007-03-08 05:42:00 +00:00
Evan Cheng
393fd04eb4 Change register allocation order to Dale's suggestion. 
llvm-svn: 35021
 2007-03-08 02:56:40 +00:00
Evan Cheng
2c3e4ab3a6 Bug fix. Not advancing the register scavenger iterator correctly. 
llvm-svn: 35020
 2007-03-08 02:55:08 +00:00
Reid Spencer
c3f0724204 For PR1205: 
Provide an APIntified version of MaskedValueIsZero. This will (temporarily)
cause a "defined but not used" message from the compiler. It will be used
in the next patch in this series.

Patch by Sheng Zhou.

llvm-svn: 35019
 2007-03-08 01:52:58 +00:00
Reid Spencer
6a924d1a1d For PR1205: 
Add a new ComputeMaskedBits function that is APIntified. We'll slowly
convert things over to use this version. When its all done, we'll remove
the existing version.

llvm-svn: 35018
 2007-03-08 01:46:38 +00:00
Evan Cheng
c79408b032 For Darwin, put constant data into .const, .const_data, .literal{4|8|16} 
sections.

llvm-svn: 35017
 2007-03-08 01:25:25 +00:00
Evan Cheng
14b63d89c1 Put constant data to .const, .const_data, .literal{4|8|16} sections. 
llvm-svn: 35016
 2007-03-08 01:07:07 +00:00
Evan Cheng
6bf2f3665e Add ReadOnlySection directive. 
llvm-svn: 35015
 2007-03-08 01:00:38 +00:00
Evan Cheng
7513c95267 Added ContainsRelocations() to check if a constant might only be resolvable at load time. 
llvm-svn: 35014
 2007-03-08 00:59:12 +00:00
Evan Cheng
51c3e53eb7 Only safe to use a call-clobbered or spilled callee-saved register as scratch register. 
llvm-svn: 35010
 2007-03-07 20:30:36 +00:00
Bill Wendling
8f49ba1000 Remove useless pattern fragments. 
llvm-svn: 35009
 2007-03-07 18:23:09 +00:00
Anton Korobeynikov
85d6c1ebad Refactoring of formal parameter flags. Enable properly use of 
zext/sext/aext stuff.

llvm-svn: 35008
 2007-03-07 16:25:09 +00:00
Anton Korobeynikov
a24b167902 Cleanup: make SetCounter an instance variable 
llvm-svn: 35007
 2007-03-07 08:25:02 +00:00
Evan Cheng
2f55532e84 Avoid combining indexed load further. 
llvm-svn: 35005
 2007-03-07 08:07:03 +00:00
Devang Patel
6a56e3c1a0 Now IndVarSimplify is a LoopPass. 
llvm-svn: 35003
 2007-03-07 06:39:01 +00:00
Bill Wendling
3c201ddd02 Properly support v8i8 and v4i16 types. It now converts them to v2i32 for 
load and stores.

llvm-svn: 35002
 2007-03-07 05:43:18 +00:00
Devang Patel
16107bb71b Now LICM is a LoopPass. 
llvm-svn: 35001
 2007-03-07 04:41:30 +00:00
Anton Korobeynikov
090c2d50ea Fix DWARF debugging information on x86/Linux and (hopefully) 
Mingw32/Cygwin targets. This fixes PR978

llvm-svn: 35000
 2007-03-07 02:47:57 +00:00
Evan Cheng
493960579f ARM always use register scavenger. No longer reserves R12. 
llvm-svn: 34999
 2007-03-07 02:46:23 +00:00
Evan Cheng
4e01b11512 Fix some brittle code. Watch out for cases where register scavenger is pointing to deleted instructions. 
llvm-svn: 34998
 2007-03-07 02:38:05 +00:00
Devang Patel
3a24891f80 Now LoopUnroll is a LoopPass. 
llvm-svn: 34996
 2007-03-07 01:38:05 +00:00
Devang Patel
c35610b9f9 Now LoopUnswitch is a LoopPass. 
llvm-svn: 34992
 2007-03-07 00:26:10 +00:00
Evan Cheng
9839628fd1 Fix one more Thumb eliminateFrameIndex bug. 
llvm-svn: 34990
 2007-03-07 00:12:18 +00:00
Reid Spencer
012677ae92 Fix all of last night's JIT failures in Prolangs-C++ by finishing the 
implementation of getConstantValue().

llvm-svn: 34988
 2007-03-06 22:23:15 +00:00
Evan Cheng
63ffd3e17f Register scavenging is now on by default for ARM. 
llvm-svn: 34987
 2007-03-06 22:02:53 +00:00
Evan Cheng
6453ad00d2 Make load / store optimizer use register scavenger. 
llvm-svn: 34986
 2007-03-06 21:59:20 +00:00
Evan Cheng
49e8bd5e17 Minor bug fix. 
llvm-svn: 34985
 2007-03-06 21:58:15 +00:00
Devang Patel
0b82378a28 Now LoopStrengthReduce is a LoopPass. 
llvm-svn: 34984
 2007-03-06 21:14:09 +00:00
Chris Lattner
cf70993bba big endian 32-bit systems (e.g. ppc32) want to return the high reg first, not 
the lo-reg first.  This is fallout from my ppc calling conv change yesterday,
it fixes test/ExecutionEngine/2003-05-06-LivenessClobber.llx

llvm-svn: 34983
 2007-03-06 20:01:06 +00:00
Devang Patel
bee9c51214 Insert loop into LQ before visiting children. 
llvm-svn: 34982
 2007-03-06 19:50:49 +00:00
Anton Korobeynikov
42d0886ca0 Small eye-candy: use asciz directive everywhere, where possible. 
llvm-svn: 34981
 2007-03-06 19:25:02 +00:00
Devang Patel
57322d0462 Use schedulePass() instead of assignPassManager() to add new LPPassManager. 
This ensures that require analysis info is available.

llvm-svn: 34980
 2007-03-06 19:11:25 +00:00
Devang Patel
b44e86318e Add LPPassManager::insertLoop(). 
llvm-svn: 34979
 2007-03-06 19:00:02 +00:00
Bill Wendling
a02d43fbbd Add LOAD/STORE support for MMX. 
llvm-svn: 34978
 2007-03-06 18:53:42 +00:00
Devang Patel
8490ffbcdc LPPassManager::deleteLoopFromQueue() add meat. Cut-n-paste code from 
LoopUnswitch pass.

llvm-svn: 34977
 2007-03-06 18:38:33 +00:00
Evan Cheng
228403bfcb Code clean up. Prepare to use register scavenger. 
llvm-svn: 34976
 2007-03-06 18:02:41 +00:00
Devang Patel
d3cf506865 LPPassManager. Implement preparePassManager() hook. 
llvm-svn: 34975
 2007-03-06 17:59:37 +00:00
Devang Patel
b9e705f09e Keep track of higher level analysis. 
llvm-svn: 34974
 2007-03-06 17:52:53 +00:00
Devang Patel
e3abf559e5 LPPassManager : Add initialization and finalizatino hooks. 
llvm-svn: 34968
 2007-03-06 16:59:03 +00:00
Evan Cheng
b0c0d22f30 Minor interface change. 
llvm-svn: 34967
 2007-03-06 10:05:14 +00:00
Evan Cheng
7c90fb2d67 Scavenge a register using the register scavenger when needed. 
llvm-svn: 34966
 2007-03-06 10:03:56 +00:00
Evan Cheng
73678177cd If target decides to create an emergency spill slot, make sure it's closest to SP or frame pointer. 
llvm-svn: 34965
 2007-03-06 10:02:38 +00:00
Evan Cheng
077516f441 Register scavenger is now capable of scavenging. It spills a register whose use of furthest away to make it available. 
llvm-svn: 34964
 2007-03-06 10:01:25 +00:00
Anton Korobeynikov
6da6c8c48b Use new SDIselParamAttr enumeration. This removes "magick" constants 
from formal attributes' flags processing.

llvm-svn: 34963
 2007-03-06 08:12:33 +00:00
Anton Korobeynikov
4558f01db9 Enumerate SDISel formal parameter attributes. Make use of new 
enumeration.

llvm-svn: 34960
 2007-03-06 06:10:33 +00:00
Anton Korobeynikov
d0375d0852 Implement PR1240 
llvm-svn: 34959
 2007-03-06 05:32:48 +00:00
Reid Spencer
cab64ae896 1. Make StoreValueToMemory a little more efficient by not requiring caller 
to make a copy of the GenericValue.
2. Fix a copy & paste bug in StoreValueToMemory where 64-bit values were
   truncated to 32

llvm-svn: 34958
 2007-03-06 05:03:16 +00:00
Reid Spencer
5816281df1 Fix some thinko's in the last patch. PtrSize has to be in bits and we 
might need to zext not just trunc the value.

llvm-svn: 34955
 2007-03-06 03:46:41 +00:00
Reid Spencer
854b342a38 Fix a bug in IntToPtr. Truncating to 64-bits only works if the integer 
is larger. Adjust so that it truncates to pointer width, only if necessary.

llvm-svn: 34954
 2007-03-06 03:41:50 +00:00
Reid Spencer
3b08509917 Simplify code as a result of the change in GenericValue to have a single 
integer field of type APInt instead of different sized integer fields.

llvm-svn: 34952
 2007-03-06 03:11:31 +00:00
Reid Spencer
d333ccc051 Radically simplify execution. This patch gets rid of all the special 
handling for integer of various sizes. GenericValue now has just a single
integer field of type APInt. We use its facilities directly in the
execution of all instructions.

llvm-svn: 34951
 2007-03-06 03:09:31 +00:00
Reid Spencer
ccb2a63443 Adjust and simplify external function processing now that GenericValue has 
a single integer field of type APInt.

llvm-svn: 34950
 2007-03-06 03:08:12 +00:00
Reid Spencer
7985dd51a2 APInt's are no longer allocated on the heap because they are direct 
members of GenericValue. Consequently the code to clean them up isn't
needed.

llvm-svn: 34948
 2007-03-06 03:06:48 +00:00
Reid Spencer
0e27441b52 Remove the insufficient code in Interpreter::create that computed the 
Target DataLayout incorrectly. For now, we'll trust that the module has
got the correct DataLayout. In the future, this needs to be changed to
tell the TargetData to be "current host".

llvm-svn: 34947
 2007-03-06 03:05:57 +00:00
Reid Spencer
6243e2253d Simplify things significantly because GenericValue now has a single integer 
field, of type APInt, instead of multiple integer fields. Also, get rid of
the special endianness code in StoreValueToMemory and LoadValueToMemory.
ExecutionEngine is always used to execute on the host platform so this is
now unnecessary.

llvm-svn: 34946
 2007-03-06 03:04:04 +00:00
Devang Patel
e4da6fa801 Use std::deque to manage loop queue inside LPPassManager. 
llvm-svn: 34943
 2007-03-06 02:30:46 +00:00
Devang Patel
45343b04b3 Keep track of inherited analysis. For example, if a loop pass does not 
preserve dominator info then it should update parent FPPassManager's
available analysis info to reflect this.

llvm-svn: 34942
 2007-03-06 01:55:46 +00:00
Devang Patel
edbde240be Add preparePassManager() hook. This allows each pass to check whether 
current active pass manager is appropriate or not.

A loop pass may consider current LPPassManager in appropraite if loop
pass is not preserving analysis information that is used by other
passes managed by current LPPassManager. In such situation, loop pass
can pop current LPPassManager from the PMStack using this  hook
and use new LPPassManager for itself.

llvm-svn: 34941
 2007-03-06 01:06:16 +00:00
Chris Lattner
26a5492049 Switch PPC return lower to use an autogenerated CC description. 
llvm-svn: 34940
 2007-03-06 00:59:59 +00:00
Reid Spencer
db1c09aef1 Remove an unnecessary if statement and adjust indentation. 
llvm-svn: 34939
 2007-03-05 23:36:13 +00:00
Bill Wendling
c52174dee3 Add the emms intrinsic for MMX support. 
llvm-svn: 34938
 2007-03-05 23:09:45 +00:00
Devang Patel
79495d839e Current pass manager, not the parent pass manager, assumes the role of 
last user when one of the managed pass uses info provided by parent pass
manager.

This was exposed by LPPassManager work.

llvm-svn: 34936
 2007-03-05 22:57:49 +00:00
Devang Patel
6668a341ae Avoid constructing std::strings unless pass debugging is ON. 
llvm-svn: 34933
 2007-03-05 20:01:30 +00:00
Devang Patel
ca90313b39 Account for time consumed by releaseMemory() properly. 
llvm-svn: 34932
 2007-03-05 18:20:51 +00:00
Lauro Ramos Venancio
3f855f6a54 Use init_array/fini_array sections for static contructors/destructors when the ABI is AAPCS. 
Fix SingleSource/Regression/C/ConstructorDestructorAttributes test on arm-linux-gnueabi.

llvm-svn: 34931
 2007-03-05 17:59:58 +00:00
Chris Lattner
b0de2b2a9c This is the first major step of implementing PR1226. We now successfully 
scalarrepl things down to elements, but mem2reg can't promote elements that
are memset/memcpy'd.  Until then, the code is disabled "0 &&".

llvm-svn: 34924
 2007-03-05 07:52:57 +00:00
Jeff Cohen
01cb8d6857 Ensure 64-bit correctness. 
llvm-svn: 34923
 2007-03-05 05:45:08 +00:00
Jeff Cohen
5506bc49f9 Implement memoryLimit on Windows. 
llvm-svn: 34922
 2007-03-05 05:22:08 +00:00
Chris Lattner
4dfdbab24b fix a subtle bug that caused an MSVC warning. Thanks to Jeffc for pointing this out. 
llvm-svn: 34920
 2007-03-05 00:11:19 +00:00
Chris Lattner
4fadd9defa Add some simplifications for demanded bits, this allows instcombine to turn: 
define i64 @test(i64 %A, i32 %B) {
        %tmp12 = zext i32 %B to i64             ; <i64> [#uses=1]
        %tmp3 = shl i64 %tmp12, 32              ; <i64> [#uses=1]
        %tmp5 = add i64 %tmp3, %A               ; <i64> [#uses=1]
        %tmp6 = and i64 %tmp5, 123              ; <i64> [#uses=1]
        ret i64 %tmp6
}

into:

define i64 @test(i64 %A, i32 %B) {
        %tmp6 = and i64 %A, 123         ; <i64> [#uses=1]
        ret i64 %tmp6
}

This implements Transforms/InstCombine/add2.ll:test1

llvm-svn: 34919
 2007-03-05 00:02:29 +00:00
Jeff Cohen
98c99a3a02 Unbreak VC++ build. 
llvm-svn: 34917
 2007-03-05 00:00:42 +00:00
Chris Lattner
0036009167 simplify some code 
llvm-svn: 34914
 2007-03-04 23:16:36 +00:00
Chris Lattner
8c7d418eaf fold away addc nodes when we know there cannot be a carry-out. 
llvm-svn: 34913
 2007-03-04 20:40:38 +00:00
Chris Lattner
7021449d8b generalize 
llvm-svn: 34910
 2007-03-04 20:08:45 +00:00
Chris Lattner
06e4ea2b21 canonicalize constants to the RHS of addc/adde. If nothing uses the carry out of 
addc, turn it into add.

This allows us to compile:

long long test(long long A, unsigned B) {
  return (A + ((long long)B << 32)) & 123;
}

into:

_test:
        movl $123, %eax
        andl 4(%esp), %eax
        xorl %edx, %edx
        ret

instead of:
_test:
        xorl %edx, %edx
        movl %edx, %eax
        addl 4(%esp), %eax   ;; add of zero
        andl $123, %eax
        ret

llvm-svn: 34909
 2007-03-04 20:03:15 +00:00
Chris Lattner
bac1a46d92 eliminate some ops if they have an undef RHS 
llvm-svn: 34908
 2007-03-04 20:01:46 +00:00
Chris Lattner
241e2e2e3d fix typo 
llvm-svn: 34906
 2007-03-04 06:36:24 +00:00
Chris Lattner
6d7701714e add missing braces 
llvm-svn: 34905
 2007-03-04 06:13:52 +00:00
Chris Lattner
758a83d1b0 minor cleanups 
llvm-svn: 34904
 2007-03-04 04:50:21 +00:00
Reid Spencer
d3481fbeec Remove unneeded header file. 
llvm-svn: 34903
 2007-03-04 04:41:04 +00:00
Chris Lattner
de2b4322ff Speed up -instcombine by 20% by avoiding a particularly expensive passmgr call. 
llvm-svn: 34902
 2007-03-04 04:27:24 +00:00
Chris Lattner
f2304552f7 switch MarkAliveBlocks over to using SmallPtrSet instead of std::set, speeding 
up simplifycfg by 20%

llvm-svn: 34901
 2007-03-04 04:20:48 +00:00
Chris Lattner
dec6a90a00 Speed up Loop::isLCSSAForm by using a hash table instead of a sorted vector. 
llvm-svn: 34900
 2007-03-04 04:06:39 +00:00
Chris Lattner
4d48389d2d make better use of LCSSA information in RewriteLoopExitValues. Before, we 
would scan the entire loop body, then scan all users of instructions in the
loop, looking for users outside the loop.  Now, since we know that the
loop is in LCSSA form, we know that any users outside the loop will be LCSSA
phi nodes.  Just scan them.

This speeds up indvars significantly.

llvm-svn: 34898
 2007-03-04 03:43:23 +00:00
Reid Spencer
17000a40e2 Guard further against APInt operations with operands of unequal bit width. 
llvm-svn: 34897
 2007-03-04 01:25:35 +00:00