1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-30 15:32:52 +01:00
Commit Graph

19642 Commits

Author SHA1 Message Date
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
d76cf28d13 Add 5-operand version of SelectNodeTo
llvm-svn: 22950
2005-08-21 18:49:58 +00:00
Chris Lattner
481b47fc75 add a method
llvm-svn: 22949
2005-08-21 18:49:33 +00:00
Chris Lattner
3f6df51c19 Add support for basic blocks, fix a bug in result # computation
llvm-svn: 22948
2005-08-21 18:49:29 +00:00
Chris Lattner
9bb0d10479 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
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
Chris Lattner
8c314e8d4d Fix a bug in the RUN line
llvm-svn: 22945
2005-08-21 16:37:36 +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
Chris Lattner
7c3e52ef92 fix bogus warning
llvm-svn: 22943
2005-08-20 18:07:27 +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
5b7488224d Add support for global address nodes
llvm-svn: 22940
2005-08-19 22:38:24 +00:00
Chris Lattner
0c4565bf91 ADd support for TargetGlobalAddress nodes
llvm-svn: 22939
2005-08-19 22:31:34 +00:00
Chris Lattner
5210fd0e51 Add support for TargetGlobalAddress nodes
llvm-svn: 22938
2005-08-19 22:31:04 +00:00
Chris Lattner
bedf8e757a 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
b36807b0d0 Fix a bug in previous commit
llvm-svn: 22936
2005-08-19 21:34:13 +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
ac699c4db9 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
011a721d08 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
9af3aaf541 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
9ceee53f9a 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
916e016ac1 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
2ac3fd08d2 Split RegisterClass 'Methods' into MethodProtos and MethodBodies
llvm-svn: 22929
2005-08-19 19:13:20 +00:00
Chris Lattner
20c1c4cf07 Split register class "Methods" into MethodProtos and MethodBodies
llvm-svn: 22928
2005-08-19 19:12:51 +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
cef54bfd28 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
077a4e87c4 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
341308dc6b Read the namespace field from register classes
llvm-svn: 22918
2005-08-19 18:45:20 +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
bf7633b73b add a setName method to record
llvm-svn: 22912
2005-08-19 17:58:49 +00:00
Chris Lattner
1344e9cf9c Add a setName method to Record.
llvm-svn: 22911
2005-08-19 17:58:11 +00:00
Chris Lattner
36f99a1374 For now, just emit empty operand info structures.
llvm-svn: 22910
2005-08-19 16:57:28 +00:00
Chris Lattner
db827889e3 Sparcv9 gets no operand info
llvm-svn: 22909
2005-08-19 16:56:56 +00:00
Chris Lattner
6fcfaee2fc Add a new field to TargetInstrDescriptor for tracking information about
operands.

llvm-svn: 22908
2005-08-19 16:56:26 +00:00
Jeff Cohen
12674110d5 Fix VC++ constant truncation warning.
llvm-svn: 22907
2005-08-19 16:19:21 +00:00
Jeff Cohen
c6e28f4d38 Update Visual Studio projects for removed file.
llvm-svn: 22905
2005-08-19 13:51:22 +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
Chris Lattner
5ac318c67b Fix a problem jeffc noticed
llvm-svn: 22903
2005-08-19 06:16:04 +00:00
Jeff Cohen
f99748bc0f Fix VC++ precedence warning.
llvm-svn: 22902
2005-08-19 04:39:48 +00:00