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19684 Commits

Author SHA1 Message Date
Chris Lattner 0548f50501 add a method 
llvm-svn: 22955
 2005-08-21 19:48:59 +00:00
Chris Lattner 433390fba2 ADd a method 
llvm-svn: 22954
 2005-08-21 19:48:53 +00:00
Chris Lattner 968aeb18b0 Don't print out the MBB label for the entry mbb 
llvm-svn: 22953
 2005-08-21 19:09:33 +00:00
Chris Lattner 519acbfb76 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 2a1823d178 Implement selection for branches. 
llvm-svn: 22951
 2005-08-21 18:50:37 +00:00
Chris Lattner 46059044c6 Add 5-operand version of SelectNodeTo 
llvm-svn: 22950
 2005-08-21 18:49:58 +00:00
Chris Lattner 707b39fb8c add a method 
llvm-svn: 22949
 2005-08-21 18:49:33 +00:00
Chris Lattner 154b2bc59b Add support for basic blocks, fix a bug in result # computation 
llvm-svn: 22948
 2005-08-21 18:49:29 +00:00
Chris Lattner 539c3fa863 When legalizing brcond ->brcc or select -> selectcc, make sure to truncate 
the old condition to a one bit value.  The incoming value must have been
promoted, and the top bits are undefined.  This causes us to generate:

_test:
        rlwinm r2, r3, 0, 31, 31
        li r3, 17
        cmpwi cr0, r2, 0
        bne .LBB_test_2 ;
.LBB_test_1:    ;
        li r3, 1
.LBB_test_2:    ;
        blr

instead of:

_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

for:

int %test(bool %c) {
        %retval = select bool %c, int 17, int 1
        ret int %retval
}

llvm-svn: 22947
 2005-08-21 18:03:09 +00:00
Chris Lattner 0500e362bf 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
Chris Lattner 7b6b326b2c Fix a bug in the RUN line 
llvm-svn: 22945
 2005-08-21 16:37:36 +00:00
Duraid Madina 3588ea9bf5 reenable collapse of loadimm+AND -> dep.z (thanks guys) 
llvm-svn: 22944
 2005-08-21 15:43:53 +00:00
Chris Lattner 4b08ba26d8 fix bogus warning 
llvm-svn: 22943
 2005-08-20 18:07:27 +00:00
Jim Laskey 9b0a275f04 Repair an out by one error for IA64. 
llvm-svn: 22942
 2005-08-20 11:05:23 +00:00
Chris Lattner 4564039498 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 319e65696d Add support for global address nodes 
llvm-svn: 22940
 2005-08-19 22:38:24 +00:00
Chris Lattner 7f618f4982 ADd support for TargetGlobalAddress nodes 
llvm-svn: 22939
 2005-08-19 22:31:34 +00:00
Chris Lattner 1be7eddecf Add support for TargetGlobalAddress nodes 
llvm-svn: 22938
 2005-08-19 22:31:04 +00:00
Chris Lattner 6d7f814b01 Implement CopyFromReg, TokenFactor, and fix a bug in CopyToReg. This allows 
us to compile stuff like this:

double %test(double %A, double %B, double %C, double %E) {
        %F = mul double %A, %A
        %G = add double %F, %B
        %H = sub double -0.0, %G
        %I = mul double %H, %C
        %J = add double %I, %E
        ret double %J
}

to:

_test:
        fnmadd f0, f1, f1, f2
        fmadd f1, f0, f3, f4
        blr

woot!

llvm-svn: 22937
 2005-08-19 21:43:53 +00:00
Chris Lattner 0875d1ab89 Fix a bug in previous commit 
llvm-svn: 22936
 2005-08-19 21:34:13 +00:00
Chris Lattner 65d66797a5 Fix a typeo, no wonder all tokenfactor edges were the same! 
llvm-svn: 22935
 2005-08-19 21:33:02 +00:00
Chris Lattner 4990335eb8 Print physreg register nodes with target names (e.g. F1) instead of numbers 
llvm-svn: 22934
 2005-08-19 21:21:16 +00:00
Chris Lattner 78b200eb74 Before implementing copyfromreg, we'll implement copytoreg correctly. 
This gets us this for the previous testcase:

_test:
        lis r2, 0
        ori r3, r2, 65535
        blr

Note that we actually write to r3 (the return reg) correctly now :)

llvm-svn: 22933
 2005-08-19 20:50:53 +00:00
Chris Lattner cc3035e989 Now that we have operand info for machine instructions, use it to create 
temporary registers for things that define a register.  This allows dag->dag
isel to compile this:

int %test() { ret int 65535 }

into:

_test:
        lis r2, 0
        ori r2, r2, 65535
        blr

Next up, getting CopyFromReg to work, allowing arguments and cross-bb values.

llvm-svn: 22932
 2005-08-19 20:45:43 +00:00
Chris Lattner 96d0234845 Emit this: 
static const TargetOperandInfo OperandInfo6[] = { { &PPC32::CRRCRegClass }, { 0 }, };

instead of this:

static const TargetOperandInfo OperandInfo6[] = { { PPC32::CRRCRegisterClass }, { 0 }, };

For operand information, which does not require dynamic (startup-time)
initialization.

llvm-svn: 22931
 2005-08-19 20:29:14 +00:00
Chris Lattner 8ed3d0a0ce Expose the derived register classes to the public header, allowing them 
to be accessed.

llvm-svn: 22930
 2005-08-19 20:23:42 +00:00
Chris Lattner bd26a82051 Split RegisterClass 'Methods' into MethodProtos and MethodBodies 
llvm-svn: 22929
 2005-08-19 19:13:20 +00:00
Chris Lattner 73ec2cb0f5 Split register class "Methods" into MethodProtos and MethodBodies 
llvm-svn: 22928
 2005-08-19 19:12:51 +00:00
Chris Lattner 248933eb39 put reg classes into namespace 
llvm-svn: 22927
 2005-08-19 18:53:43 +00:00
Chris Lattner 1dee9b1685 Put reg classes into namespaces 
llvm-svn: 22926
 2005-08-19 18:52:55 +00:00
Chris Lattner 757a770a57 Put register classes into namespaces 
llvm-svn: 22925
 2005-08-19 18:51:57 +00:00
Chris Lattner 8975de187f Put register classes in namespaces 
llvm-svn: 22924
 2005-08-19 18:50:46 +00:00
Chris Lattner dc89d6be04 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 cca0503c24 put reg classes in namespaces 
llvm-svn: 22922
 2005-08-19 18:49:22 +00:00
Chris Lattner 3fb85f2702 Require that targets specify a namespace for their register classes. 
llvm-svn: 22921
 2005-08-19 18:48:48 +00:00
Chris Lattner 74f60c306d Refactor to use Target.getRegisterClasses consistently, which provides 
anonymous regclass definition renaming.

Change the generated code to emit register classes as properly namespace
qualified entities like everything else.

expose the actual class definition as an object, though this isn't quite
usable yet.

llvm-svn: 22920
 2005-08-19 18:47:59 +00:00
Chris Lattner d02bd5bb05 Emit real operand info for instructions. This currently works but is bad 
in one way: the generated tables require dynamic initialization for the
register classes.  This will be fixed in a future patch.

llvm-svn: 22919
 2005-08-19 18:46:26 +00:00
Chris Lattner 418d8cfcfe Read the namespace field from register classes 
llvm-svn: 22918
 2005-08-19 18:45:20 +00:00
Chris Lattner 3262673610 The skeleton target has never had an isel 
llvm-svn: 22917
 2005-08-19 18:35:41 +00:00
Chris Lattner f391f286d7 This code has always been dead on itanium 
llvm-svn: 22916
 2005-08-19 18:34:37 +00:00
Chris Lattner 0faf0b7313 This code has always been dead for alpha 
llvm-svn: 22915
 2005-08-19 18:33:26 +00:00
Chris Lattner 8ad3700a3e The simple isel being gone makes this dead! 
llvm-svn: 22914
 2005-08-19 18:32:03 +00:00
Chris Lattner ef6d8d8e94 Now that the simple isels are dead, so is this. 
llvm-svn: 22913
 2005-08-19 18:30:39 +00:00
Chris Lattner f9b2edb91f add a setName method to record 
llvm-svn: 22912
 2005-08-19 17:58:49 +00:00
Chris Lattner ac284259ac Add a setName method to Record. 
llvm-svn: 22911
 2005-08-19 17:58:11 +00:00
Chris Lattner 220d00109b For now, just emit empty operand info structures. 
llvm-svn: 22910
 2005-08-19 16:57:28 +00:00
Chris Lattner 63143a0609 Sparcv9 gets no operand info 
llvm-svn: 22909
 2005-08-19 16:56:56 +00:00
Chris Lattner fa7c66bcea Add a new field to TargetInstrDescriptor for tracking information about 
operands.

llvm-svn: 22908
 2005-08-19 16:56:26 +00:00
Jeff Cohen 486e36cfde Fix VC++ constant truncation warning. 
llvm-svn: 22907
 2005-08-19 16:19:21 +00:00
Jeff Cohen 91e218fb1d Update Visual Studio projects for removed file. 
llvm-svn: 22905
 2005-08-19 13:51:22 +00:00