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
Chris Lattner
519ed087bb
Implement PR1179/PR1232 and test/Transforms/IndVarsSimplify/loop_evaluate_[234].ll
...
This makes -indvars require and use LCSSA, updating it as appropriate.
llvm-svn: 34896
2007-03-04 01:00:28 +00:00
Chris Lattner
9c1328fdbb
Fix CodeGen/Generic/fpowi-promote.ll and PR1239
...
llvm-svn: 34893
2007-03-03 23:43:21 +00:00
Chris Lattner
f45fa39069
Make RewriteLoopExitValues far less nested by using continue in the loop
...
llvm-svn: 34891
2007-03-03 22:48:48 +00:00
Chris Lattner
4275ffd6ff
Add an expand action for ISD label which just deletes the label.
...
This "fixes" PR1238.
llvm-svn: 34890
2007-03-03 19:21:38 +00:00
Reid Spencer
4ab5a02fb1
Remove unnecessary #include.
...
llvm-svn: 34889
2007-03-03 18:29:16 +00:00
Reid Spencer
4610488330
Deal with error handling better.
...
llvm-svn: 34887
2007-03-03 18:19:18 +00:00
Reid Spencer
e0d00951c2
Make sure that when we store a value it is masked to its correct bit
...
width. This helps CBE work with non-standard integer bit widths.
llvm-svn: 34885
2007-03-03 16:33:33 +00:00
Reid Spencer
8aaa36a012
Complete the APIntification of the interpreter. All asserts for > 64 bits
...
have been removed and dealt with. The interpreter should now be able to
execute any LLVM program using any bit width.
llvm-svn: 34884
2007-03-03 08:38:04 +00:00
Reid Spencer
6cdbf93aae
Avoid memory leakage by having caller construct the APInt for the
...
destination value of LoadValueFromMemory.
llvm-svn: 34883
2007-03-03 08:36:29 +00:00
Reid Spencer
6037b564a0
Fix constant folding of fp->int bitcast for vectors.
...
llvm-svn: 34880
2007-03-03 08:32:46 +00:00
Evan Cheng
306d12a520
Only propagate IsKill if the last use is a kill.
...
llvm-svn: 34878
2007-03-03 06:32:37 +00:00
Reid Spencer
747e872c5b
Implement APInt support for the binary operators.
...
Move the getConstantExpr function towards the end of the file so we don't
need a dozen forward declarations.
llvm-svn: 34877
2007-03-03 06:22:22 +00:00
Reid Spencer
11a355139c
1. Have the ExecutionContext keep track of the APInt's allocated and
...
ensure they are cleaned up when the stack frame exits.
2. Move a function to the Execution.cpp file where it belongs.
llvm-svn: 34876
2007-03-03 06:19:55 +00:00
Nate Begeman
7ffce4cf16
http://llvm.org/bugs/show_bug.cgi?id=1237
...
llvm-svn: 34875
2007-03-03 06:18:18 +00:00
Reid Spencer
df9222b66d
Implement loading and storing of APInt values from memory.
...
llvm-svn: 34874
2007-03-03 06:18:03 +00:00
Nick Lewycky
cfed5f36a1
Emit low/high immediate loads properly for Linux/PPC.
...
llvm-svn: 34871
2007-03-03 05:29:51 +00:00
Chris Lattner
f22da20af4
my recent change caused a failure in a bswap testcase, because it changed
...
the order that instcombine processed instructions in the testcase. The end
result is that instcombine finished with:
define i16 @test1(i16 %a) {
%tmp = zext i16 %a to i32 ; <i32> [#uses=2]
%tmp21 = lshr i32 %tmp, 8 ; <i32> [#uses=1]
%tmp5 = shl i32 %tmp, 8 ; <i32> [#uses=1]
%tmp.upgrd.32 = or i32 %tmp21, %tmp5 ; <i32> [#uses=1]
%tmp.upgrd.3 = trunc i32 %tmp.upgrd.32 to i16 ; <i16> [#uses=1]
ret i16 %tmp.upgrd.3
}
which can't get matched as a bswap.
This patch makes instcombine more sophisticated about removing truncating
casts, allowing it to turn this into:
define i16 @test2(i16 %a) {
%tmp211 = lshr i16 %a, 8
%tmp52 = shl i16 %a, 8
%tmp.upgrd.323 = or i16 %tmp211, %tmp52
ret i16 %tmp.upgrd.323
}
which then matches as bswap. This fixes bswap.ll and implements
InstCombine/cast2.ll:test[12]. This also implements cast elimination of
add/sub.
llvm-svn: 34870
2007-03-03 05:27:34 +00:00
Nick Lewycky
a0a23a645d
Translate bit operations to English.
...
llvm-svn: 34868
2007-03-03 03:14:40 +00:00
Evan Cheng
f4e93806fe
Watch out for cases like this:
...
entry (0x8b056f0, LLVM BB @0x8b01b30, ID#0):
Live Ins: %r0 %r1 %r2 %r3
%reg1032 = tMOVrr %r3<kill>
%reg1033 = tMOVri8 1
%reg1034 = tMOVri8 0
tCMPi8 %reg1029<kill>, 0
tBcc mbb<entry,0x8b06a10>, 0
Successors according to CFG: 0x8b06980 0x8b06a10
entry (0x8b06980, LLVM BB @0x8b01b30, ID#12):
Predecessors according to CFG: 0x8b056f0
%reg1036 = tMOVrr %reg1034<kill>
Successors according to CFG: 0x8b06a10
entry (0x8b06a10, LLVM BB @0x8b01b30, ID#13):
Predecessors according to CFG: 0x8b056f0 0x8b06980
%reg1024<dead> = tMOVrr %reg1030<kill>
...
reg1030 and r1 have already been joined. When reg1024 and reg1030 are joined,
r1 live range from function entry to the tMOVrr instruction are dead. Eliminate
r1 from the livein set of the entry BB, not the BB where the copy is.
llvm-svn: 34866
2007-03-03 02:18:00 +00:00
Chris Lattner
892090ea95
add a top-level iteration loop to instcombine. This means that it will never
...
finish without combining something it is capable of.
llvm-svn: 34865
2007-03-03 02:04:50 +00:00
Reid Spencer
8c49eb7da5
APIntify this pass.
...
llvm-svn: 34863
2007-03-03 00:48:31 +00:00
Reid Spencer
6f7b9afc1c
Finally get this patch right :)
...
Replace expensive getZExtValue() == 0 calls with isZero() calls.
llvm-svn: 34861
2007-03-02 23:51:25 +00:00
Reid Spencer
438d17b5ad
Dang, I've done that twice now! Undo previous commit.
...
llvm-svn: 34860
2007-03-02 23:37:53 +00:00
Reid Spencer
70fbfc75e8
Use more efficient test for one value in a ConstantInt.
...
llvm-svn: 34859
2007-03-02 23:35:28 +00:00
Reid Spencer
76f02c5848
Guard against huge loop trip counts in an APInt safe way.
...
llvm-svn: 34858
2007-03-02 23:31:34 +00:00
Evan Cheng
2fb461c1b5
X86-64 VACOPY needs custom expansion. va_list is a struct { i32, i32, i8*, i8* }.
...
llvm-svn: 34857
2007-03-02 23:16:35 +00:00
Reid Spencer
884f32fd12
Make sure debug code is not evaluated in non-debug case.
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llvm-svn: 34856
2007-03-02 23:15:21 +00:00
Reid Spencer
69858df100
1. Sort switch cases using APInt safe comparison.
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2. Make sure debug output of APInt values is safe for all bit widths.
llvm-svn: 34855
2007-03-02 23:05:28 +00:00
Reid Spencer
bf4956bcc4
Use APInt safe isOne() method on ConstantInt instead of getZExtValue()==1
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llvm-svn: 34854
2007-03-02 23:03:17 +00:00
Reid Spencer
0f63188d6a
Make sorting of ConstantInt be APInt clean through use of ult function.
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llvm-svn: 34853
2007-03-02 23:01:14 +00:00
Reid Spencer
3e3980a403
Fix ashr for bitwidths > 64. This is now validated up to 1024 bits.
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llvm-svn: 34852
2007-03-02 22:39:11 +00:00
Anton Korobeynikov
7cec92bcd2
Simplify things
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llvm-svn: 34849
2007-03-02 21:50:27 +00:00
Chris Lattner
e11cd0460a
Fix a significant algorithm problem with the instcombine worklist. removing
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a value from the worklist required scanning the entire worklist to remove all
entries. We now use a combination map+vector to prevent duplicates from
happening and prevent the scan. This speeds up instcombine on a large file
from the llvm-gcc bootstrap from 189.7s to 4.84s in a debug build and from
5.04s to 1.37s in a release build.
llvm-svn: 34848
2007-03-02 21:28:56 +00:00
Chris Lattner
fb4d1a6437
minor cleanup
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llvm-svn: 34846
2007-03-02 19:59:19 +00:00
Evan Cheng
9dddb88209
Mark dead def as unused.
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llvm-svn: 34844
2007-03-02 10:43:16 +00:00
Evan Cheng
5bd925036c
Dead live-in detection bug.
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llvm-svn: 34843
2007-03-02 10:41:15 +00:00
Evan Cheng
e2802973eb
- Keep track all def and uses of stack slot available in register.
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- Available value use may be deleted (e.g. noop move).
llvm-svn: 34841
2007-03-02 08:52:00 +00:00
Evan Cheng
622db28794
Invalidate last use of a reused register if the use is a deleted noop copy.
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llvm-svn: 34839
2007-03-02 05:41:42 +00:00
Chris Lattner
55dcf58453
argument lowering should copy from the vreg shadows of live-in arguments
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passed in registers, not directly from the pregs themselves.
llvm-svn: 34838
2007-03-02 05:12:29 +00:00
Chris Lattner
e29ef5d9cb
add a note
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llvm-svn: 34837
2007-03-02 05:04:52 +00:00
Reid Spencer
6d483da6c0
Use a better algorithm for rounding sqrt results. Change the FIXME about
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this to a NOTE: because pari/gp results start to get rounded incorrectly
after 192 bits of precision. APInt and pari/gp never differ by more than
1, but APInt is more accurate because it does not lose precision after 192
bits as does pari/gp.
llvm-svn: 34834
2007-03-02 04:21:55 +00:00
Nick Lewycky
29f7380f34
Implement unionWith.
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llvm-svn: 34833
2007-03-02 03:33:05 +00:00
Chris Lattner
4fbb8286bf
switch the inliner from being recursive to being iterative.
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llvm-svn: 34832
2007-03-02 03:11:20 +00:00
Reid Spencer
89154fbfff
Fix an unequal bitwidth issue.
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llvm-svn: 34831
2007-03-02 02:59:25 +00:00
Reid Spencer
39b817765b
Add a FIXME
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llvm-svn: 34828
2007-03-02 02:01:34 +00:00
Reid Spencer
eabc981a60
Fix a problem where shifting by 64-bits leads to incorrect results on PPC
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but not on X86 becuase shift by word size is "undefined".
llvm-svn: 34825
2007-03-02 01:19:42 +00:00
Dale Johannesen
a6003a9eb6
eliminate unnecessary reset of SP in epilog on darwin
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llvm-svn: 34824
2007-03-02 01:17:17 +00:00
Reid Spencer
2814c17704
Reverse a premature commital.
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llvm-svn: 34822
2007-03-02 00:31:39 +00:00
Reid Spencer
1f970769e8
Prefer non-virtual calls to ConstantInt::isZero over virtual calls to
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Constant::isNullValue() in situations where it is possible.
llvm-svn: 34821
2007-03-02 00:28:52 +00:00
Reid Spencer
f8f8413839
Combine two lines that can be.
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llvm-svn: 34818
2007-03-01 23:30:25 +00:00
Reid Spencer
ee77d22f26
Make it possible to create an SCEVUnknown from an APInt as well as an int.
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llvm-svn: 34816
2007-03-01 22:28:51 +00:00
Reid Spencer
e5456dea52
Although probably not necessary, guard against a potential assertion by
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using isNullValue() instead of getZExtValue() == 0.
llvm-svn: 34815
2007-03-01 21:54:37 +00:00
Reid Spencer
3a7689fe22
Use isUnitValue() instead of getZExtValue() == 1 which will prevent an
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assert if the ConstantInt's value is large.
llvm-svn: 34814
2007-03-01 21:51:23 +00:00
Reid Spencer
327ae8b712
Use APInt conversion to string so the result is correct regardless of the
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bit width of the ConstantInt being converted.
llvm-svn: 34810
2007-03-01 21:00:32 +00:00
Reid Spencer
5790924b21
Use the APInt versions of the bit-wise conversions of float/double to int
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and back. While this is not strictly necessary, it does pave the way for
future changes in casting. It should now be possible to improve vector
casting to deal with un-equal fp/int sizes.
llvm-svn: 34808
2007-03-01 20:44:23 +00:00
Reid Spencer
5d9574f37e
Use modern variable name. ConstantUnsignedInt is long since dead. No
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functional change with this patch.
llvm-svn: 34806
2007-03-01 20:27:41 +00:00
Jim Laskey
0b6492d5df
Emit eh filter info.
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llvm-svn: 34805
2007-03-01 20:26:43 +00:00
Jim Laskey
73e3ad1b10
Collect eh filter info.
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llvm-svn: 34804
2007-03-01 20:25:32 +00:00
Reid Spencer
d7c97384ac
Use a simpler constructor for ConstantInt.
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llvm-svn: 34803
2007-03-01 20:25:31 +00:00
Jim Laskey
5f932644e9
Lower eh filter intrinsic.
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llvm-svn: 34802
2007-03-01 20:24:30 +00:00
Reid Spencer
381752cb34
Wrap a long line.
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llvm-svn: 34799
2007-03-01 19:48:16 +00:00
Reid Spencer
30758bbe85
Avoid a potential assert out if the loop increment is > 64 bits.
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llvm-svn: 34798
2007-03-01 19:45:00 +00:00
Reid Spencer
29c98b589c
Regenerate.
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llvm-svn: 34797
2007-03-01 19:41:47 +00:00
Reid Spencer
30eac3e0b1
The 64-bit constructor for ConstantInt changes from int64_t to uint64_t.
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This caused a warning for construction with -1. Avoid the warning by using
-1ULL instead.
llvm-svn: 34796
2007-03-01 19:33:52 +00:00
Reid Spencer
288f1db60d
Construct ConstantInt with simpler constructor.
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llvm-svn: 34795
2007-03-01 19:32:33 +00:00
Reid Spencer
125af87a25
Use a simpler constructor when constructing ConstantInt. Also, replace
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verbose code to sext/trunc or zext/trunc and APInt with new methods on
that class.
llvm-svn: 34794
2007-03-01 19:32:01 +00:00
Reid Spencer
b0a7bfa105
Use a simpler constructor when constructing ConstantInst.
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llvm-svn: 34793
2007-03-01 19:31:12 +00:00
Reid Spencer
b4e877c488
Drop the ConstantInt(const Type&, const APInt&) constructor. It is
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redundant and more verbose than the ConstantInt(const APInt&) constructor.
llvm-svn: 34792
2007-03-01 19:30:34 +00:00