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Commit Graph

2919 Commits

Author SHA1 Message Date
Evan Cheng
759f389846 X86 JIT PIC jumptable support.
llvm-svn: 45616
2008-01-05 02:26:58 +00:00
Evan Cheng
5b9282f3b5 Combine MovePCtoStack + POP32r into one instruction MOVPC32r so it can be moved if needed.
llvm-svn: 45605
2008-01-05 00:41:47 +00:00
Owen Anderson
2adf8c5533 Move some more functionality from MRegisterInfo to TargetInstrInfo.
llvm-svn: 45603
2008-01-04 23:57:37 +00:00
Evan Cheng
6dbcca7903 Unbreak tailcall opt in JIT.
llvm-svn: 45576
2008-01-04 10:50:28 +00:00
Evan Cheng
7322e4dec4 X86 PIC JIT support fixes: encoding bugs, add lazy pointer stubs support.
llvm-svn: 45575
2008-01-04 10:46:51 +00:00
Gordon Henriksen
d3af8e0ab3 First steps in in X86 calling convention cleanup.
llvm-svn: 45536
2008-01-03 16:47:34 +00:00
Evan Cheng
fb2bc4fc95 Change MachineRelocation::DoesntNeedFnStub to NeedStub. This fields will be used
for non-function GV relocations that require function address stubs (e.g. Mac OS X in non-static mode).

llvm-svn: 45527
2008-01-03 02:56:28 +00:00
Evan Cheng
ba1fd9fc76 X86 PIC JIT bug fix: relocations for constantpool and jumptable.
llvm-svn: 45515
2008-01-02 23:38:59 +00:00
Bill Wendling
92d8ff0471 Machine LICM will check that operands are defined outside of the loop. Also
check that register isn't 0 before going further.

llvm-svn: 45498
2008-01-02 21:10:40 +00:00
Chris Lattner
4a0d9c7836 darwin9 and above support aligned common symbols.
llvm-svn: 45494
2008-01-02 19:44:55 +00:00
Owen Anderson
e6856128ab Move some more instruction creation methods from RegisterInfo into InstrInfo.
llvm-svn: 45484
2008-01-01 21:11:32 +00:00
Chris Lattner
04a35e9a8c Fix a bug in my previous patch: refer to the impl not the pure virtual version. It's unclear why gcc would ever compile this...
llvm-svn: 45476
2008-01-01 01:05:34 +00:00
Chris Lattner
1285ec2ae7 Fix a problem where lib/Target/TargetInstrInfo.h would include and use
a header file from libcodegen.  This violates a layering order: codegen
depends on target, not the other way around.  The fix to this is to 
split TII into two classes, TII and TargetInstrInfoImpl, which defines
stuff that depends on libcodegen.  It is defined in libcodegen, where 
the base is not.

llvm-svn: 45475
2008-01-01 01:03:04 +00:00
Owen Anderson
ae7e2c1e03 Move copyRegToReg from MRegisterInfo to TargetInstrInfo. This is part of the
Machine-level API cleanup instigated by Chris.

llvm-svn: 45470
2007-12-31 06:32:00 +00:00
Chris Lattner
96167aa93c Rename SSARegMap -> MachineRegisterInfo in keeping with the idea
that "machine" classes are used to represent the current state of
the code being compiled.  Given this expanded name, we can start 
moving other stuff into it.  For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.

Update all the clients to match.

This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.

llvm-svn: 45467
2007-12-31 04:13:23 +00:00
Chris Lattner
9e5cc35593 Add new shorter predicates for testing machine operands for various types:
e.g. MO.isMBB() instead of MO.isMachineBasicBlock().  I don't plan on 
switching everything over, so new clients should just start using the 
shorter names.

Remove old long accessors, switching everything over to use the short
accessor: getMachineBasicBlock() -> getMBB(), 
getConstantPoolIndex() -> getIndex(), setMachineBasicBlock -> setMBB(), etc.

llvm-svn: 45464
2007-12-30 23:10:15 +00:00
Chris Lattner
7504adbd72 More cleanups for MachineOperand:
- Eliminate the static "print" method for operands, moving it
    into MachineOperand::print.
  - Change various set* methods for register flags to take a bool
    for the value to set it to.  Remove unset* methods.
  - Group methods more logically by operand flavor in MachineOperand.h

llvm-svn: 45461
2007-12-30 21:56:09 +00:00
Chris Lattner
12477d46b4 Use MachineOperand::getImm instead of MachineOperand::getImmedValue. Likewise setImmedValue -> setImm
llvm-svn: 45453
2007-12-30 20:49:49 +00:00
Bill Wendling
4c22e299ef If we have a load of a global address that's not modified during the
function, then go ahead and hoist it out of the loop. This is the result:

$ cat a.c
volatile int G;

int A(int N) {
  for (; N > 0; --N)
    G++;
}
$ llc -o - -relocation-model=pic
_A:
...
LBB1_2: # bb
        movl    L_G$non_lazy_ptr-"L1$pb"(%eax), %esi
        incl    (%esi)
        incl    %edx
        cmpl    %ecx, %edx
        jne     LBB1_2  # bb
...
$ llc -o - -relocation-model=pic -machine-licm
_A:
...
        movl    L_G$non_lazy_ptr-"L1$pb"(%eax), %eax
LBB1_2: # bb
        incl    (%eax)
        incl    %edx
        cmpl    %ecx, %edx
        jne     LBB1_2  # bb
...

I'm limiting this to the MOV32rm x86 instruction for now.

llvm-svn: 45444
2007-12-30 03:18:58 +00:00
Chris Lattner
4d0361fbf2 Shrinkify the machine operand creation method names.
llvm-svn: 45433
2007-12-30 00:45:46 +00:00
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev.
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Chris Lattner
8193d4af33 remove attribution from lib Makefiles.
llvm-svn: 45415
2007-12-29 20:09:26 +00:00
Chris Lattner
d55e743cfe One readme entry is done, one is really easy (Evan, want to investigate
eliminating the llvm.x86.sse2.loadl.pd intrinsic?), one shuffle optzn
may be done (if shufps is better than pinsw, Evan, please review), and
we already know about LICM of simple instructions.

llvm-svn: 45407
2007-12-29 19:31:47 +00:00
Chris Lattner
cd147e5596 Fold comparisons against a constant nan, and optimize ORD/UNORD
comparisons with a constant.  This allows us to compile isnan to:

_foo:
	fcmpu cr7, f1, f1
	mfcr r2
	rlwinm r3, r2, 0, 31, 31
	blr 

instead of:

LCPI1_0:					;  float
	.space	4
_foo:
	lis r2, ha16(LCPI1_0)
	lfs f0, lo16(LCPI1_0)(r2)
	fcmpu cr7, f1, f0
	mfcr r2
	rlwinm r3, r2, 0, 31, 31
	blr 

llvm-svn: 45405
2007-12-29 08:37:08 +00:00
Chris Lattner
b36a4a7a84 this xform is implemented.
llvm-svn: 45404
2007-12-29 08:19:39 +00:00
Chris Lattner
f8e408b7b1 Codegen:
as:

_bar:
	pushl	%esi
	subl	$8, %esp
	movl	16(%esp), %esi
	call	L_foo$stub
	fstps	(%esi)
	addl	$8, %esp
	popl	%esi
	#FP_REG_KILL
	ret

instead of:

_bar:
	pushl	%esi
	subl	$8, %esp
	movl	16(%esp), %esi
	call	L_foo$stub
	fstpl	(%esi)
	cvtsd2ss	(%esi), %xmm0
	movss	%xmm0, (%esi)
	addl	$8, %esp
	popl	%esi
	#FP_REG_KILL
	ret

llvm-svn: 45401
2007-12-29 06:57:38 +00:00
Chris Lattner
e3515220d2 avoid going through a stack slot to convert from fpstack to xmm reg
if we are just going to store it back anyway.  This improves things 
like:
double foo();
void bar(double *P) { *P = foo(); }

llvm-svn: 45399
2007-12-29 06:41:28 +00:00
Chris Lattner
ac72965e02 add a note
llvm-svn: 45397
2007-12-29 05:51:58 +00:00
Chris Lattner
2248a22bda add a note.
llvm-svn: 45387
2007-12-28 21:50:40 +00:00
Chris Lattner
232e097cff add a simple hack
llvm-svn: 45343
2007-12-24 19:27:46 +00:00
Anton Korobeynikov
4275f59e61 Erm, really disable :)
llvm-svn: 45319
2007-12-22 20:46:24 +00:00
Anton Korobeynikov
9f148a1a2a Disable, until we'll really need it
llvm-svn: 45318
2007-12-22 20:41:12 +00:00
Evan Cheng
c226a1a7d3 Preliminary PIC JIT support for X86 (32-bit) / Darwin.
llvm-svn: 45313
2007-12-22 09:40:20 +00:00
Evan Cheng
5b05d625cd Oops.
llvm-svn: 45312
2007-12-22 09:14:34 +00:00
Evan Cheng
8f4ec948d3 Fix JIT code emission of X86::MovePCtoStack.
llvm-svn: 45307
2007-12-22 02:26:46 +00:00
Evan Cheng
51f51c7572 Allow JIT with non-static relocation model.
llvm-svn: 45304
2007-12-22 01:12:14 +00:00
Evan Cheng
a111629401 New entry.
llvm-svn: 45280
2007-12-21 01:31:58 +00:00
Evan Cheng
eba18a1952 Fix JIT encoding for CMPSD as well.
llvm-svn: 45268
2007-12-20 19:57:09 +00:00
Chris Lattner
93d750bbe3 add an obvious load folding missed optzn.
llvm-svn: 45161
2007-12-18 16:48:14 +00:00
Bill Wendling
e5af8b6e5c Add "mayHaveSideEffects" and "neverHasSideEffects" flags to some instructions. I
based what flag to set on whether it was already marked as
"isRematerializable". If there was a further check to determine if it's "really"
rematerializable, then I marked it as "mayHaveSideEffects" and created a check
in the X86 back-end similar to the remat one.

llvm-svn: 45132
2007-12-17 23:07:56 +00:00
Bill Wendling
b33d6155da LD_Fp64m should have "isRematerializable" set.
llvm-svn: 45128
2007-12-17 22:17:14 +00:00
Chris Lattner
f04ce286e2 fix a questionable cast, thanks to Mike Stump for pointing this out.
llvm-svn: 45075
2007-12-16 20:26:54 +00:00
Chris Lattner
c6fd78dec1 Fix the JIT encoding of cmp*ss, which aborts with this assertion currently:
X86CodeEmitter.cpp:378: failed assertion `0 && "Immediate size not set!"'

I *think* this is right, but Evan, please verify.  It also looks like
CMPSDrr and maybe others are missing this info.  Evan, plz investigate.

llvm-svn: 45074
2007-12-16 20:12:41 +00:00
Evan Cheng
1d95b669b6 Make better use of instructions that clear high bits; fix various 2-wide shuffle bugs.
llvm-svn: 45058
2007-12-15 03:00:47 +00:00
Evan Cheng
55e450d6eb Actually, MOVPQIto64mr is a dup of MOVPQI2QImr, MOV64toPQIrm is a dup of MOVQI2PQIrm.
llvm-svn: 45041
2007-12-14 20:08:14 +00:00
Evan Cheng
0a36fa6625 Fix (mem) <-> low 64-bits of xmm bugs pointed out by David Greene. Mac OS X Leopard assembler recognizes movq.
llvm-svn: 45040
2007-12-14 19:54:07 +00:00
Dale Johannesen
1e083ec1f6 x86-32 long doubles are 4-byte aligned on the stack
for parameter passing (only for that, on Darwin).

llvm-svn: 45038
2007-12-14 19:25:34 +00:00
Evan Cheng
42f27a28a4 Fix bsf / bsr jit encoding.
llvm-svn: 45037
2007-12-14 18:49:43 +00:00
Evan Cheng
375141a82d Oops. Forgot these.
llvm-svn: 45036
2007-12-14 18:25:34 +00:00
Dan Gohman
0efc49e9b8 Fix Intel asm syntax for the bsr and bsf instructions.
llvm-svn: 45030
2007-12-14 15:10:00 +00:00