Chris Lattner
77350a373e
Implement support for taking the address of constant pool indices, which
...
is used by the int -> FP code among other things. This gets
2005-05-12-Int64ToFP past that failure, to dying on lack of support for add_parts
llvm-svn: 23042
2005-08-25 05:04:11 +00:00
Chris Lattner
2296582d06
Add support for FP constants, fixing UnitTests/2004-02-02-NegativeZero
...
llvm-svn: 23038
2005-08-25 04:47:18 +00:00
Chris Lattner
f36622ea2e
Fully implement frame index, so that we can pass the address of alloca's
...
around to functions and stuff
llvm-svn: 23036
2005-08-25 00:45:43 +00:00
Chris Lattner
c9cc2b0acd
implement unconditional branches, fixing UnitTests/2003-05-02-DependentPHI.c
...
llvm-svn: 23034
2005-08-25 00:29:58 +00:00
Chris Lattner
36715208c4
LFS/STFS load and store FP values, not integer ones. This change allows us
...
to codegen this: float foo() { return 1.245; }
into this:
_foo:
lis r2, ha16(.CPI_foo_0)
lfs f1, lo16(.CPI_foo_0)(r2)
blr
instead of this:
_foo:
lis r2, ha16(.CPI_foo_0)
lfs r2, lo16(.CPI_foo_0)(r2) <-- ouch
or f1, r2, r2 <-- ouch
blr
with the dag isel.
llvm-svn: 23033
2005-08-25 00:26:22 +00:00
Chris Lattner
286b85144c
Fix a broken assertion
...
llvm-svn: 23032
2005-08-25 00:19:12 +00:00
Chris Lattner
fc59d17656
Fix a warning
...
llvm-svn: 23031
2005-08-25 00:05:15 +00:00
Chris Lattner
4349a69f74
fix a warning in optimized build
...
llvm-svn: 23030
2005-08-25 00:03:21 +00:00
Chris Lattner
898278d586
Fix some warnings
...
llvm-svn: 23029
2005-08-25 00:00:26 +00:00
Chris Lattner
8f595df1a6
Split IMPLICIT_DEF into IMPLICIT_DEF_GPR and IMPLICIT_DEF_FP, so that the
...
instructions take a consistent reg class. Implement ISD::UNDEF in the dag->dag
selector to generate this, fixing UnitTests/2003-07-06-IntOverflow.
llvm-svn: 23028
2005-08-24 23:08:16 +00:00
Chris Lattner
5efe9406a6
implement support for calls
...
llvm-svn: 23026
2005-08-24 22:45:17 +00:00
Chris Lattner
8824bd228b
Remove some dead cases.
...
Emit the indcall sequence as:
mtctr inreg
mr R12, inreg
btctr
If inreg and R12 aren't coallesced, this reduces the odds of having the mtctr
and btctr in the same dispatch group. :)
llvm-svn: 23023
2005-08-24 22:21:47 +00:00
Chris Lattner
8d151627a8
add an idea
...
llvm-svn: 23020
2005-08-24 18:15:24 +00:00
Chris Lattner
ea62b04502
Adjust to new interface
...
llvm-svn: 23010
2005-08-24 16:34:12 +00:00
Nate Begeman
326b3809f4
Whoops, fix a thinko. All cases except SETNE are now handled by the
...
target independent code in SelectionDAG.cpp
llvm-svn: 23002
2005-08-24 05:06:48 +00:00
Nate Begeman
8e1c08e083
Remove unused statistic
...
Prefer 'neg X' to 'subfic 0, X' since neg does not set XER[CA]
llvm-svn: 23001
2005-08-24 05:03:20 +00:00
Nate Begeman
5d3e28b04c
Add the "ppc specific" setcc-equivalent select_cc cases
...
Prefer 'neg X' to 'subfic 0, X' since it does not set XER[CA]
llvm-svn: 23000
2005-08-24 04:59:21 +00:00
Chris Lattner
f034da3bd4
Add callseq_begin/end support
...
Call stil not supported yet
llvm-svn: 22998
2005-08-24 00:47:15 +00:00
Chris Lattner
0444d66753
Adjust to new livevars interface
...
llvm-svn: 22991
2005-08-23 23:41:14 +00:00
Chris Lattner
51bad854a7
Simplify this code by using LiveVariables::KillsRegister
...
llvm-svn: 22988
2005-08-23 22:49:55 +00:00
Chris Lattner
aba58bd49b
Fix PR618 and Regression/CodeGen/CBackend/2005-08-23-Fmod.ll by not emitting
...
x%y for 'rem' on fp values.
llvm-svn: 22984
2005-08-23 20:22:50 +00:00
Chris Lattner
86a4a4745c
add a note
...
llvm-svn: 22982
2005-08-23 06:27:59 +00:00
Nate Begeman
a8ec868347
Ack, typo
...
llvm-svn: 22981
2005-08-23 05:45:10 +00:00
Nate Begeman
0ac8bb2fe1
Add an option to make SetCC illegal as a beta option
...
llvm-svn: 22979
2005-08-23 05:42:36 +00:00
Nate Begeman
383c7553a6
Remove some instructions we no longer generate
...
llvm-svn: 22976
2005-08-23 01:16:46 +00:00
Chris Lattner
86ab578e3e
Remove some regs that are not used.
...
llvm-svn: 22975
2005-08-22 22:32:13 +00:00
Chris Lattner
362eff4ccd
Nate noticed that 30% of the malloc/frees in llc come from calls to LowercaseString
...
in the asmprinter. This changes the .td files to use lower case register names,
avoiding the need to do this call. This speeds up the asmprinter from 1.52s
to 1.06s on kc++ in a release build.
llvm-svn: 22974
2005-08-22 22:00:02 +00:00
Chris Lattner
ef8f06856f
Fix a crash I introduced into the IA64 backend with my copyfromreg change.
...
It used to crash on any function that took float arguments.
llvm-svn: 22973
2005-08-22 21:33:11 +00:00
Chris Lattner
36b8efcedd
Add a pass name for -time-passes output
...
llvm-svn: 22970
2005-08-22 18:28:09 +00:00
Chris Lattner
4c9d1715ff
Implement stores.
...
llvm-svn: 22963
2005-08-22 01:27:59 +00:00
Chris Lattner
86aceaf749
Fix compilation of:
...
float %test2(float* %P) {
%Q = load float* %P
%R = add float %Q, %Q
ret float %R
}
By returning the right result.
llvm-svn: 22961
2005-08-22 00:59:14 +00:00
Chris Lattner
81cde8c7b6
Make sure expressions only have one use before emitting them into a place that is conditionally executed
...
llvm-svn: 22960
2005-08-22 00:47:28 +00:00
Chris Lattner
a3f9415a81
Implement most of load support. There is still a bug though.
...
llvm-svn: 22959
2005-08-21 22:31:09 +00:00
Chris Lattner
0d32366da7
Don't print out the MBB label for the entry mbb
...
llvm-svn: 22953
2005-08-21 19:09:33 +00:00
Chris Lattner
d8b7b492fe
Simplify the logic for BRTWOWAY_CC handling. The isel code already
...
simplifies BRTWOWAY into BR if one of the results is a fall-through.
Unless I'm missing something, there is no reason to duplicate this
in the target-specific code.
llvm-svn: 22952
2005-08-21 19:03:28 +00:00
Chris Lattner
0f148968ba
Implement selection for branches.
...
llvm-svn: 22951
2005-08-21 18:50:37 +00:00
Chris Lattner
1994775d9d
If the false value for a select_cc is really simple (has no inputs), evaluate
...
it in the block. This codegens:
int %test(bool %c) {
%retval = select bool %c, int 17, int 1
ret int %retval
}
as:
_test:
rlwinm r2, r3, 0, 31, 31
li r2, 17
cmpwi cr0, r3, 0
bne .LBB_test_2 ;
.LBB_test_1: ;
li r2, 1
.LBB_test_2: ;
or r3, r2, r2
blr
instead of:
_test:
rlwinm r2, r3, 0, 31, 31
li r2, 17
li r4, 1
cmpwi cr0, r3, 0
bne .LBB_test_2 ;
.LBB_test_1: ;
or r2, r4, r4
.LBB_test_2: ;
or r3, r2, r2
blr
... which is one fewer instruction. The savings are more significant for
global address and constantfp nodes.
llvm-svn: 22946
2005-08-21 17:41:11 +00:00
Duraid Madina
06affa0edd
reenable collapse of loadimm+AND -> dep.z (thanks guys)
...
llvm-svn: 22944
2005-08-21 15:43:53 +00:00
Jim Laskey
43192e173f
Repair an out by one error for IA64.
...
llvm-svn: 22942
2005-08-20 11:05:23 +00:00
Chris Lattner
9fbbc41021
add support for global address, including PIC support.
...
This REALLY should be lowered by the legalizer!
llvm-svn: 22941
2005-08-19 22:38:53 +00:00
Chris Lattner
a8f147c1b4
Fix a typeo, no wonder all tokenfactor edges were the same!
...
llvm-svn: 22935
2005-08-19 21:33:02 +00:00
Chris Lattner
2ac3fd08d2
Split RegisterClass 'Methods' into MethodProtos and MethodBodies
...
llvm-svn: 22929
2005-08-19 19:13:20 +00:00
Chris Lattner
78107cb342
put reg classes into namespace
...
llvm-svn: 22927
2005-08-19 18:53:43 +00:00
Chris Lattner
2b1d327d29
Put reg classes into namespaces
...
llvm-svn: 22926
2005-08-19 18:52:55 +00:00
Chris Lattner
f86654ffde
Put register classes into namespaces
...
llvm-svn: 22925
2005-08-19 18:51:57 +00:00
Chris Lattner
9d61d4a3e4
Put register classes in namespaces
...
llvm-svn: 22924
2005-08-19 18:50:46 +00:00
Chris Lattner
15d2e8a253
Fix code that assumes the register info will be dumped into a target
...
namespace instead of the reg class namespace. Update getRegClassForType()
to use modified names due to tblgen change.
llvm-svn: 22923
2005-08-19 18:50:11 +00:00
Chris Lattner
47005fe346
put reg classes in namespaces
...
llvm-svn: 22922
2005-08-19 18:49:22 +00:00
Chris Lattner
9a9fe27bd2
Require that targets specify a namespace for their register classes.
...
llvm-svn: 22921
2005-08-19 18:48:48 +00:00
Chris Lattner
61526c0f6c
The skeleton target has never had an isel
...
llvm-svn: 22917
2005-08-19 18:35:41 +00:00
Chris Lattner
f0b42a6f29
This code has always been dead on itanium
...
llvm-svn: 22916
2005-08-19 18:34:37 +00:00
Chris Lattner
b46e525e23
This code has always been dead for alpha
...
llvm-svn: 22915
2005-08-19 18:33:26 +00:00
Chris Lattner
e894de1791
The simple isel being gone makes this dead!
...
llvm-svn: 22914
2005-08-19 18:32:03 +00:00
Chris Lattner
f0e731ea49
Now that the simple isels are dead, so is this.
...
llvm-svn: 22913
2005-08-19 18:30:39 +00:00
Chris Lattner
db827889e3
Sparcv9 gets no operand info
...
llvm-svn: 22909
2005-08-19 16:56:56 +00:00
Duraid Madina
4efc0b6f2b
a bugfix (up top) and a quick repair job: disable generation of dep.z
...
(which died about a week ago) so we're back to load-(2^n-1)-then-AND
sequences. slow, but things should now be Almost Completely Working,
modulo those pesky alignment/ABI issues.
llvm-svn: 22904
2005-08-19 13:25:50 +00:00
Nate Begeman
88bfe8a7c3
Fix a bug where we were passing the wrong number of arguments to an
...
instruction.
llvm-svn: 22901
2005-08-19 03:42:28 +00:00
Chris Lattner
5cfc567fb8
mark variable arity instructions as such. Alpha wins the battle for
...
cleanest backend in this metric :)
llvm-svn: 22893
2005-08-19 00:51:37 +00:00
Chris Lattner
5194ff37c4
Mark some instructions as variable_ops, and PSEUDO_ALLOC as taking a GPR.
...
I'm not convinced this is all of them, but I can't do much testing, because
IA64 LLC crashes on big programs :(
llvm-svn: 22892
2005-08-19 00:47:42 +00:00
Chris Lattner
d7bd59d77e
add a few missing cases
...
llvm-svn: 22891
2005-08-19 00:41:29 +00:00
Chris Lattner
f62a66a21c
Give ADJCALLSTACKDOWN/UP the correct operands.
...
Give a whole bunch of other stuff variable operands, particularly FP. The
FP stackifier is playing fast and loose with operands here, so we have to
mark them all as variable. This will have to be fixed before we can dag->dag
the X86 backend. The solution is for the pre-stackifier and post-stackifier
instructions to all be disjoint.
llvm-svn: 22890
2005-08-19 00:38:22 +00:00
Nate Begeman
1182e06dcf
ISD::OR, and it's accompanying SelectBitfieldInsert
...
llvm-svn: 22889
2005-08-19 00:38:14 +00:00
Chris Lattner
abad70eaf8
The variable SAR's only take one operand too
...
llvm-svn: 22888
2005-08-19 00:31:37 +00:00
Chris Lattner
8ce7dd449a
Stop adding bogus operands to variable shifts on X86. These instructions
...
only take one operand. The other comes implicitly in through CL.
llvm-svn: 22887
2005-08-19 00:16:17 +00:00
Nate Begeman
a978ae8b7d
Remove the X86 and PowerPC Simple instruction selectors; their time has
...
passed.
llvm-svn: 22886
2005-08-18 23:53:15 +00:00
Nate Begeman
c1aeaed2b9
Add shifts.
...
llvm-svn: 22884
2005-08-18 23:38:00 +00:00
Chris Lattner
1d3d2fb435
Fix operand numbers by marking variable arity nodes as such and by fixing
...
the operand lists of a few other nodes.
llvm-svn: 22883
2005-08-18 23:25:33 +00:00
Chris Lattner
9b342804a8
MFLR doesn't take an operand, the LR register is implicit
...
llvm-svn: 22882
2005-08-18 23:24:50 +00:00
Chris Lattner
32120e461e
Add a new flag
...
llvm-svn: 22881
2005-08-18 23:17:07 +00:00
Chris Lattner
2147daa960
Move this to the emitter
...
llvm-svn: 22877
2005-08-18 20:08:53 +00:00
Jim Laskey
7399a3d644
More optimal solution for loading constants.
...
llvm-svn: 22870
2005-08-18 18:58:23 +00:00
Chris Lattner
a094a1279a
After selecting the instructions for a basic block, emit the instructions
...
llvm-svn: 22869
2005-08-18 18:46:06 +00:00
Chris Lattner
80a5ffb6c5
remove some unused stuff
...
llvm-svn: 22866
2005-08-18 18:34:00 +00:00
Nate Begeman
7efd8aa1d1
Fix int foo() { return 65535; } by using the top 16 bits of the constant
...
as the argument to LIS rather than the result of HA16(constant).
The DAG->DAG ISel was already doing the right thing.
llvm-svn: 22865
2005-08-18 18:14:49 +00:00
Nate Begeman
7726312fac
Improve ISD::Constant codegen.
...
Now for int foo() { return -1; } we generate:
_foo:
li r3, -1
blr
instead of
_foo:
lis r2, -1
ori r3, r2, 65535
blr
llvm-svn: 22864
2005-08-18 18:01:39 +00:00
Chris Lattner
79b0fc3b9a
replace switch stmt with an assert, generate li 0 instead of lis 0 for 0,
...
to make the code follow people's expectations better.
llvm-svn: 22861
2005-08-18 17:16:52 +00:00
Jim Laskey
ed406c683b
Handle loading of 0x????0000 constants with a single instruction.
...
llvm-svn: 22858
2005-08-18 15:52:30 +00:00
Nate Begeman
67f3483a97
Add support for ISD::AND, and its various optimized forms.
...
llvm-svn: 22857
2005-08-18 07:30:46 +00:00
Nate Begeman
3681359c93
Maintain consistency in negating things
...
llvm-svn: 22855
2005-08-18 05:44:50 +00:00
Nate Begeman
b6e36decb6
Implement XOR, remove a broken sign_extend_inreg case
...
llvm-svn: 22854
2005-08-18 05:00:13 +00:00
Nate Begeman
feac5964d7
Add a bunch more simple nodes.
...
llvm-svn: 22851
2005-08-18 03:04:18 +00:00
Nate Begeman
4a875e784e
Add a couple more nodes that are easy to handle
...
llvm-svn: 22850
2005-08-18 00:53:47 +00:00
Nate Begeman
276155cb07
Be fruitful and multiply!
...
llvm-svn: 22849
2005-08-18 00:21:41 +00:00
Jim Laskey
aa4903a2a6
Better version of isIntImmediate.
...
llvm-svn: 22848
2005-08-18 00:15:15 +00:00
Nate Begeman
e7c038e591
Teach the DAG->DAG ISel about FNEG, and how it can be used to invert
...
several of the PowerPC opcodes that come in both negated and non-negated
forms.
llvm-svn: 22845
2005-08-17 23:46:35 +00:00
Jim Laskey
062df4865a
Promote dependency for MathExtras.h out of Constants.h.
...
llvm-svn: 22839
2005-08-17 20:04:34 +00:00
Jim Laskey
61e3d7bca5
Culling out use of unions for converting FP to bits and vice versa.
...
llvm-svn: 22838
2005-08-17 19:34:49 +00:00
Chris Lattner
6e4c443e45
add a beta option for turning on dag->dag isel
...
llvm-svn: 22837
2005-08-17 19:33:30 +00:00
Chris Lattner
6ee7175048
initial hack at a dag->dag instruction selector. This is obviously woefully
...
incomplete, but it is a start. It handles basic argument/retval stuff, immediates,
add and sub.
llvm-svn: 22836
2005-08-17 19:33:03 +00:00
Chris Lattner
3c0e683c5d
add prototype, remove dead proto
...
llvm-svn: 22835
2005-08-17 19:32:03 +00:00
Chris Lattner
82abf46492
Fix some bugs in the alpha backend, some of which I introduced yesterday,
...
and some that were preexisting. All alpha regtests pass now.
llvm-svn: 22829
2005-08-17 17:08:24 +00:00
Chris Lattner
1035045433
Fix a few small typos I noticed when converting this over to the DAG->DAG
...
selector. Also, there is no difference between addSImm and addImm, so just
use addImm, folding some branches.
llvm-svn: 22819
2005-08-17 01:25:14 +00:00
Jim Laskey
09b3a01b90
Removed UINT_TO_FP and SINT_TO_FP from ISel outright.
...
llvm-svn: 22818
2005-08-17 01:14:38 +00:00
Andrew Lenharth
32d53db341
thinko. Should fix s4addl.ll regression
...
llvm-svn: 22817
2005-08-17 00:47:24 +00:00
Jim Laskey
7584bd6c69
Remove ISel code generation for UINT_TO_FP and SINT_TO_FP. Now asserts if
...
marked as legal.
llvm-svn: 22816
2005-08-17 00:41:40 +00:00
Jim Laskey
cdde9cec23
Make UINT_TO_FP and SINT_TO_FP use generic expansion.
...
llvm-svn: 22815
2005-08-17 00:40:22 +00:00
Nate Begeman
d549160121
Implement a couple improvements:
...
Remove dead code in ISD::Constant handling
Add support for add long, imm16
We now codegen 'long long foo(long long a) { return ++a; }'
as:
addic r4, r4, 1
addze r3, r3
blr
instead of:
li r2, 1
li r5, 0
addc r2, r4, r2
adde r3, r3, r5
blr
llvm-svn: 22811
2005-08-17 00:20:08 +00:00
Chris Lattner
9d651a0e3c
updates for changes in nodes
...
llvm-svn: 22808
2005-08-16 21:58:15 +00:00
Chris Lattner
583658a766
update the backends to work with the new CopyFromReg/CopyToReg/ImplicitDef nodes
...
llvm-svn: 22807
2005-08-16 21:56:37 +00:00
Nate Begeman
f6b6378f23
Implement BR_CC and BRTWOWAY_CC. This allows the removal of a rather nasty
...
fixme from the PowerPC backend. Emit slightly better code for legalizing
select_cc.
llvm-svn: 22805
2005-08-16 19:49:35 +00:00