oota-llvm.git
19 years agoadd a method
Chris Lattner [Sun, 21 Aug 2005 19:48:59 +0000 (19:48 +0000)]
add a method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22955 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoADd a method
Chris Lattner [Sun, 21 Aug 2005 19:48:53 +0000 (19:48 +0000)]
ADd a method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22954 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoDon't print out the MBB label for the entry mbb
Chris Lattner [Sun, 21 Aug 2005 19:09:33 +0000 (19:09 +0000)]
Don't print out the MBB label for the entry mbb

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22953 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoSimplify the logic for BRTWOWAY_CC handling. The isel code already
Chris Lattner [Sun, 21 Aug 2005 19:03:28 +0000 (19:03 +0000)]
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22952 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement selection for branches.
Chris Lattner [Sun, 21 Aug 2005 18:50:37 +0000 (18:50 +0000)]
Implement selection for branches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22951 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd 5-operand version of SelectNodeTo
Chris Lattner [Sun, 21 Aug 2005 18:49:58 +0000 (18:49 +0000)]
Add 5-operand version of SelectNodeTo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22950 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoadd a method
Chris Lattner [Sun, 21 Aug 2005 18:49:33 +0000 (18:49 +0000)]
add a method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22949 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd support for basic blocks, fix a bug in result # computation
Chris Lattner [Sun, 21 Aug 2005 18:49:29 +0000 (18:49 +0000)]
Add support for basic blocks, fix a bug in result # computation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22948 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoWhen legalizing brcond ->brcc or select -> selectcc, make sure to truncate
Chris Lattner [Sun, 21 Aug 2005 18:03:09 +0000 (18:03 +0000)]
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
}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22947 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoIf the false value for a select_cc is really simple (has no inputs), evaluate
Chris Lattner [Sun, 21 Aug 2005 17:41:11 +0000 (17:41 +0000)]
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22946 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a bug in the RUN line
Chris Lattner [Sun, 21 Aug 2005 16:37:36 +0000 (16:37 +0000)]
Fix a bug in the RUN line

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22945 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoreenable collapse of loadimm+AND -> dep.z (thanks guys)
Duraid Madina [Sun, 21 Aug 2005 15:43:53 +0000 (15:43 +0000)]
reenable collapse of loadimm+AND -> dep.z (thanks guys)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22944 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agofix bogus warning
Chris Lattner [Sat, 20 Aug 2005 18:07:27 +0000 (18:07 +0000)]
fix bogus warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22943 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRepair an out by one error for IA64.
Jim Laskey [Sat, 20 Aug 2005 11:05:23 +0000 (11:05 +0000)]
Repair an out by one error for IA64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22942 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoadd support for global address, including PIC support.
Chris Lattner [Fri, 19 Aug 2005 22:38:53 +0000 (22:38 +0000)]
add support for global address, including PIC support.
This REALLY should be lowered by the legalizer!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22941 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd support for global address nodes
Chris Lattner [Fri, 19 Aug 2005 22:38:24 +0000 (22:38 +0000)]
Add support for global address nodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22940 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoADd support for TargetGlobalAddress nodes
Chris Lattner [Fri, 19 Aug 2005 22:31:34 +0000 (22:31 +0000)]
ADd support for TargetGlobalAddress nodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22939 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd support for TargetGlobalAddress nodes
Chris Lattner [Fri, 19 Aug 2005 22:31:04 +0000 (22:31 +0000)]
Add support for TargetGlobalAddress nodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22938 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement CopyFromReg, TokenFactor, and fix a bug in CopyToReg. This allows
Chris Lattner [Fri, 19 Aug 2005 21:43:53 +0000 (21:43 +0000)]
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!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22937 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a bug in previous commit
Chris Lattner [Fri, 19 Aug 2005 21:34:13 +0000 (21:34 +0000)]
Fix a bug in previous commit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22936 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a typeo, no wonder all tokenfactor edges were the same!
Chris Lattner [Fri, 19 Aug 2005 21:33:02 +0000 (21:33 +0000)]
Fix a typeo, no wonder all tokenfactor edges were the same!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22935 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoPrint physreg register nodes with target names (e.g. F1) instead of numbers
Chris Lattner [Fri, 19 Aug 2005 21:21:16 +0000 (21:21 +0000)]
Print physreg register nodes with target names (e.g. F1) instead of numbers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22934 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoBefore implementing copyfromreg, we'll implement copytoreg correctly.
Chris Lattner [Fri, 19 Aug 2005 20:50:53 +0000 (20:50 +0000)]
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 :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22933 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoNow that we have operand info for machine instructions, use it to create
Chris Lattner [Fri, 19 Aug 2005 20:45:43 +0000 (20:45 +0000)]
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22932 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoEmit this:
Chris Lattner [Fri, 19 Aug 2005 20:29:14 +0000 (20:29 +0000)]
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22931 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoExpose the derived register classes to the public header, allowing them
Chris Lattner [Fri, 19 Aug 2005 20:23:42 +0000 (20:23 +0000)]
Expose the derived register classes to the public header, allowing them
to be accessed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22930 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoSplit RegisterClass 'Methods' into MethodProtos and MethodBodies
Chris Lattner [Fri, 19 Aug 2005 19:13:20 +0000 (19:13 +0000)]
Split RegisterClass 'Methods' into MethodProtos and MethodBodies

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22929 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoSplit register class "Methods" into MethodProtos and MethodBodies
Chris Lattner [Fri, 19 Aug 2005 19:12:51 +0000 (19:12 +0000)]
Split register class "Methods" into MethodProtos and MethodBodies

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22928 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoput reg classes into namespace
Chris Lattner [Fri, 19 Aug 2005 18:53:43 +0000 (18:53 +0000)]
put reg classes into namespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22927 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoPut reg classes into namespaces
Chris Lattner [Fri, 19 Aug 2005 18:52:55 +0000 (18:52 +0000)]
Put reg classes into namespaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22926 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoPut register classes into namespaces
Chris Lattner [Fri, 19 Aug 2005 18:51:57 +0000 (18:51 +0000)]
Put register classes into namespaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22925 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoPut register classes in namespaces
Chris Lattner [Fri, 19 Aug 2005 18:50:46 +0000 (18:50 +0000)]
Put register classes in namespaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22924 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix code that assumes the register info will be dumped into a target
Chris Lattner [Fri, 19 Aug 2005 18:50:11 +0000 (18:50 +0000)]
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22923 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoput reg classes in namespaces
Chris Lattner [Fri, 19 Aug 2005 18:49:22 +0000 (18:49 +0000)]
put reg classes in namespaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22922 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRequire that targets specify a namespace for their register classes.
Chris Lattner [Fri, 19 Aug 2005 18:48:48 +0000 (18:48 +0000)]
Require that targets specify a namespace for their register classes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22921 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRefactor to use Target.getRegisterClasses consistently, which provides
Chris Lattner [Fri, 19 Aug 2005 18:47:59 +0000 (18:47 +0000)]
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22920 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoEmit real operand info for instructions. This currently works but is bad
Chris Lattner [Fri, 19 Aug 2005 18:46:26 +0000 (18:46 +0000)]
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22919 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRead the namespace field from register classes
Chris Lattner [Fri, 19 Aug 2005 18:45:20 +0000 (18:45 +0000)]
Read the namespace field from register classes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22918 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThe skeleton target has never had an isel
Chris Lattner [Fri, 19 Aug 2005 18:35:41 +0000 (18:35 +0000)]
The skeleton target has never had an isel

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22917 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThis code has always been dead on itanium
Chris Lattner [Fri, 19 Aug 2005 18:34:37 +0000 (18:34 +0000)]
This code has always been dead on itanium

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22916 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThis code has always been dead for alpha
Chris Lattner [Fri, 19 Aug 2005 18:33:26 +0000 (18:33 +0000)]
This code has always been dead for alpha

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22915 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThe simple isel being gone makes this dead!
Chris Lattner [Fri, 19 Aug 2005 18:32:03 +0000 (18:32 +0000)]
The simple isel being gone makes this dead!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22914 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoNow that the simple isels are dead, so is this.
Chris Lattner [Fri, 19 Aug 2005 18:30:39 +0000 (18:30 +0000)]
Now that the simple isels are dead, so is this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22913 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoadd a setName method to record
Chris Lattner [Fri, 19 Aug 2005 17:58:49 +0000 (17:58 +0000)]
add a setName method to record

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22912 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a setName method to Record.
Chris Lattner [Fri, 19 Aug 2005 17:58:11 +0000 (17:58 +0000)]
Add a setName method to Record.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22911 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFor now, just emit empty operand info structures.
Chris Lattner [Fri, 19 Aug 2005 16:57:28 +0000 (16:57 +0000)]
For now, just emit empty operand info structures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22910 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoSparcv9 gets no operand info
Chris Lattner [Fri, 19 Aug 2005 16:56:56 +0000 (16:56 +0000)]
Sparcv9 gets no operand info

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22909 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a new field to TargetInstrDescriptor for tracking information about
Chris Lattner [Fri, 19 Aug 2005 16:56:26 +0000 (16:56 +0000)]
Add a new field to TargetInstrDescriptor for tracking information about
operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22908 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix VC++ constant truncation warning.
Jeff Cohen [Fri, 19 Aug 2005 16:19:21 +0000 (16:19 +0000)]
Fix VC++ constant truncation warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22907 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoUpdate Visual Studio projects for removed file.
Jeff Cohen [Fri, 19 Aug 2005 13:51:22 +0000 (13:51 +0000)]
Update Visual Studio projects for removed file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22905 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoa bugfix (up top) and a quick repair job: disable generation of dep.z
Duraid Madina [Fri, 19 Aug 2005 13:25:50 +0000 (13:25 +0000)]
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22904 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a problem jeffc noticed
Chris Lattner [Fri, 19 Aug 2005 06:16:04 +0000 (06:16 +0000)]
Fix a problem jeffc noticed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22903 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix VC++ precedence warning.
Jeff Cohen [Fri, 19 Aug 2005 04:39:48 +0000 (04:39 +0000)]
Fix VC++ precedence warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22902 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a bug where we were passing the wrong number of arguments to an
Nate Begeman [Fri, 19 Aug 2005 03:42:28 +0000 (03:42 +0000)]
Fix a bug where we were passing the wrong number of arguments to an
instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22901 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoremove dead args
Chris Lattner [Fri, 19 Aug 2005 01:17:18 +0000 (01:17 +0000)]
remove dead args

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22900 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoremove dead options
Chris Lattner [Fri, 19 Aug 2005 01:16:18 +0000 (01:16 +0000)]
remove dead options

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22899 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoremove dead flags
Chris Lattner [Fri, 19 Aug 2005 01:14:40 +0000 (01:14 +0000)]
remove dead flags

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22898 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThe code emitter generator only supports targets with 32-bit instruction
Chris Lattner [Fri, 19 Aug 2005 01:04:33 +0000 (01:04 +0000)]
The code emitter generator only supports targets with 32-bit instruction
words.  There is no way for one of these targets to have a > 32-bit immediate!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22897 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix computation of # operands, add a temporary hack for CopyToReg
Chris Lattner [Fri, 19 Aug 2005 01:01:34 +0000 (01:01 +0000)]
Fix computation of # operands, add a temporary hack for CopyToReg

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22896 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agonow that all of the targets are clean w.r.t. the number of operands for each
Chris Lattner [Fri, 19 Aug 2005 00:59:49 +0000 (00:59 +0000)]
now that all of the targets are clean w.r.t. the number of operands for each
instruction defined, actually emit this to the InstrInfoDescriptor, which
allows an assert in the machineinstrbuilder to do some checking for us,
and is required by the dag->dag emitter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22895 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd support for target nodes with more than 3 operands, required by ppc
Nate Begeman [Fri, 19 Aug 2005 00:56:28 +0000 (00:56 +0000)]
Add support for target nodes with more than 3 operands, required by ppc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22894 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agomark variable arity instructions as such. Alpha wins the battle for
Chris Lattner [Fri, 19 Aug 2005 00:51:37 +0000 (00:51 +0000)]
mark variable arity instructions as such.  Alpha wins the battle for
cleanest backend in this metric :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22893 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMark some instructions as variable_ops, and PSEUDO_ALLOC as taking a GPR.
Chris Lattner [Fri, 19 Aug 2005 00:47:42 +0000 (00:47 +0000)]
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 :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22892 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoadd a few missing cases
Chris Lattner [Fri, 19 Aug 2005 00:41:29 +0000 (00:41 +0000)]
add a few missing cases

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22891 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoGive ADJCALLSTACKDOWN/UP the correct operands.
Chris Lattner [Fri, 19 Aug 2005 00:38:22 +0000 (00:38 +0000)]
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22890 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoISD::OR, and it's accompanying SelectBitfieldInsert
Nate Begeman [Fri, 19 Aug 2005 00:38:14 +0000 (00:38 +0000)]
ISD::OR, and it's accompanying SelectBitfieldInsert

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22889 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThe variable SAR's only take one operand too
Chris Lattner [Fri, 19 Aug 2005 00:31:37 +0000 (00:31 +0000)]
The variable SAR's only take one operand too

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22888 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoStop adding bogus operands to variable shifts on X86. These instructions
Chris Lattner [Fri, 19 Aug 2005 00:16:17 +0000 (00:16 +0000)]
Stop adding bogus operands to variable shifts on X86.  These instructions
only take one operand.  The other comes implicitly in through CL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22887 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRemove the X86 and PowerPC Simple instruction selectors; their time has
Nate Begeman [Thu, 18 Aug 2005 23:53:15 +0000 (23:53 +0000)]
Remove the X86 and PowerPC Simple instruction selectors; their time has
passed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22886 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFigure out how many operands each instruction has, keep track of whether
Chris Lattner [Thu, 18 Aug 2005 23:38:41 +0000 (23:38 +0000)]
Figure out how many operands each instruction has, keep track of whether
or not it's variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22885 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd shifts.
Nate Begeman [Thu, 18 Aug 2005 23:38:00 +0000 (23:38 +0000)]
Add shifts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22884 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix operand numbers by marking variable arity nodes as such and by fixing
Chris Lattner [Thu, 18 Aug 2005 23:25:33 +0000 (23:25 +0000)]
Fix operand numbers by marking variable arity nodes as such and by fixing
the operand lists of a few other nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22883 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMFLR doesn't take an operand, the LR register is implicit
Chris Lattner [Thu, 18 Aug 2005 23:24:50 +0000 (23:24 +0000)]
MFLR doesn't take an operand, the LR register is implicit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22882 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a new flag
Chris Lattner [Thu, 18 Aug 2005 23:17:07 +0000 (23:17 +0000)]
Add a new flag

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22881 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agorevert this change, which causes breakage, temporarily
Chris Lattner [Thu, 18 Aug 2005 22:12:31 +0000 (22:12 +0000)]
revert this change, which causes breakage, temporarily

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22880 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoWhen emitting implicit use/def lists, only emit each unique list once. Though
Chris Lattner [Thu, 18 Aug 2005 21:36:47 +0000 (21:36 +0000)]
When emitting implicit use/def lists, only emit each unique list once.  Though
LLVM is able to merge identical static const globals, GCC isn't, and this caused
some bloat in the generated data.  This has a marginal effect on PPC, shrinking
the implicit sets from 10->4, but shrinks X86 from 179 to 23, a much bigger
reduction.

This should speed up the register allocator as well by reducing the dcache
footprint for this static data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22879 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoadd a new -view-sched-dags option to view dags as they are sent to the scheduler.
Chris Lattner [Thu, 18 Aug 2005 20:11:49 +0000 (20:11 +0000)]
add a new -view-sched-dags option to view dags as they are sent to the scheduler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22878 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMove this to the emitter
Chris Lattner [Thu, 18 Aug 2005 20:08:53 +0000 (20:08 +0000)]
Move this to the emitter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22877 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement the first chunk of a code emitter. This is sophisticated enough to
Chris Lattner [Thu, 18 Aug 2005 20:07:59 +0000 (20:07 +0000)]
Implement the first chunk of a code emitter.  This is sophisticated enough to
codegen:

_empty:
.LBB_empty_0:   ;
        blr

but can't do anything more (yet). :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22876 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoUnmangled names.
Jim Laskey [Thu, 18 Aug 2005 20:06:09 +0000 (20:06 +0000)]
Unmangled names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22875 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd ScheduleDAG.cpp to the project
Chris Lattner [Thu, 18 Aug 2005 19:52:06 +0000 (19:52 +0000)]
Add ScheduleDAG.cpp to the project

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22874 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFill in the numOperands field of the TargetInstrDescriptor struct from the
Chris Lattner [Thu, 18 Aug 2005 19:45:37 +0000 (19:45 +0000)]
Fill in the numOperands field of the TargetInstrDescriptor struct from the
.td file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22873 91177308-0d34-0410-b5e6-96231b3b80d8

19 years ago1. Fix comment.
Jim Laskey [Thu, 18 Aug 2005 19:38:57 +0000 (19:38 +0000)]
1. Fix comment.

2. Get an exact count of 'li ' instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22872 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd regression test to make sure that constants are generated optimally.
Jim Laskey [Thu, 18 Aug 2005 19:32:46 +0000 (19:32 +0000)]
Add regression test to make sure that constants are generated optimally.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22871 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMore optimal solution for loading constants.
Jim Laskey [Thu, 18 Aug 2005 18:58:23 +0000 (18:58 +0000)]
More optimal solution for loading constants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22870 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAfter selecting the instructions for a basic block, emit the instructions
Chris Lattner [Thu, 18 Aug 2005 18:46:06 +0000 (18:46 +0000)]
After selecting the instructions for a basic block, emit the instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22869 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agonew file, obviously just a stub
Chris Lattner [Thu, 18 Aug 2005 18:45:24 +0000 (18:45 +0000)]
new file, obviously just a stub

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22868 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoadd a method
Chris Lattner [Thu, 18 Aug 2005 18:44:33 +0000 (18:44 +0000)]
add a method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22867 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoremove some unused stuff
Chris Lattner [Thu, 18 Aug 2005 18:34:00 +0000 (18:34 +0000)]
remove some unused stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22866 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix int foo() { return 65535; } by using the top 16 bits of the constant
Nate Begeman [Thu, 18 Aug 2005 18:14:49 +0000 (18:14 +0000)]
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22865 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImprove ISD::Constant codegen.
Nate Begeman [Thu, 18 Aug 2005 18:01:39 +0000 (18:01 +0000)]
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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22864 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoEnable critical edge splitting by default
Chris Lattner [Thu, 18 Aug 2005 17:35:14 +0000 (17:35 +0000)]
Enable critical edge splitting by default

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22863 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoreplace switch stmt with an assert, generate li 0 instead of lis 0 for 0,
Chris Lattner [Thu, 18 Aug 2005 17:16:52 +0000 (17:16 +0000)]
replace switch stmt with an assert, generate li 0 instead of lis 0 for 0,
to make the code follow people's expectations better.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22861 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoHandle loading of 0x????0000 constants with a single instruction.
Jim Laskey [Thu, 18 Aug 2005 15:52:30 +0000 (15:52 +0000)]
Handle loading of 0x????0000 constants with a single instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22858 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd support for ISD::AND, and its various optimized forms.
Nate Begeman [Thu, 18 Aug 2005 07:30:46 +0000 (07:30 +0000)]
Add support for ISD::AND, and its various optimized forms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22857 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd support for target DAG nodes that take 4 operands, such as PowerPC's
Nate Begeman [Thu, 18 Aug 2005 07:30:15 +0000 (07:30 +0000)]
Add support for target DAG nodes that take 4 operands, such as PowerPC's
rlwinm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22856 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMaintain consistency in negating things
Nate Begeman [Thu, 18 Aug 2005 05:44:50 +0000 (05:44 +0000)]
Maintain consistency in negating things

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22855 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement XOR, remove a broken sign_extend_inreg case
Nate Begeman [Thu, 18 Aug 2005 05:00:13 +0000 (05:00 +0000)]
Implement XOR, remove a broken sign_extend_inreg case

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22854 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix printing of VTSDNodes
Chris Lattner [Thu, 18 Aug 2005 03:31:02 +0000 (03:31 +0000)]
Fix printing of VTSDNodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22853 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a testcase for load short -> uint, which is currently emitted as a
Nate Begeman [Thu, 18 Aug 2005 03:11:44 +0000 (03:11 +0000)]
Add a testcase for load short -> uint, which is currently emitted as a
zextload + sign_extend_inreg rather than a sextload.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22852 91177308-0d34-0410-b5e6-96231b3b80d8