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
fac8748ca7
use simplified operand addition methods.
...
llvm-svn: 45437
2007-12-30 01:01:54 +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
d82b30a996
this is done.
...
llvm-svn: 45408
2007-12-29 19:38:02 +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
78c7878ca4
expand note.
...
llvm-svn: 45393
2007-12-29 01:05:01 +00:00
Chris Lattner
b8e060f7a6
add a note.
...
llvm-svn: 45388
2007-12-28 22:30:05 +00:00
Chris Lattner
2248a22bda
add a note.
...
llvm-svn: 45387
2007-12-28 21:50:40 +00:00
Chris Lattner
e53df84267
add a note
...
llvm-svn: 45377
2007-12-28 04:42:05 +00:00
Chris Lattner
232e097cff
add a simple hack
...
llvm-svn: 45343
2007-12-24 19:27:46 +00:00
Gordon Henriksen
3e409a37ac
Setting GlobalDirective in TargetAsmInfo by default rather than
...
providing a misleading facility. It's used once in the MIPS backend
and hardcoded as "\t.globl\t" everywhere else.
llvm-svn: 45338
2007-12-23 20:58:16 +00:00
Chris Lattner
a2156b160a
fix some warnings. This code needs to be de-tabified :(
...
llvm-svn: 45325
2007-12-22 22:47:03 +00:00
Chris Lattner
1c6a1f71cb
fix strict-aliasing violation
...
llvm-svn: 45324
2007-12-22 22:45:38 +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
Anton Korobeynikov
913c80d37f
Fix silly typo in the FP CEP handling.
...
llvm-svn: 45300
2007-12-21 23:33:44 +00:00
Duncan Sands
99690fb26c
Fix a brain fart by our beloved leader (the content
...
of this patch is the last line).
llvm-svn: 45289
2007-12-21 20:18:41 +00:00
Nicolas Geoffray
1996d8b1f4
Fix unintented change from last commit
...
llvm-svn: 45282
2007-12-21 12:22:29 +00:00
Nicolas Geoffray
18ab237446
Enable EH for linux/ppc32 targets
...
llvm-svn: 45281
2007-12-21 12:19:44 +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
Scott Michel
5cbdbd26a8
More working CellSPU tests:
...
- vec_const.ll: Vector constant loads
- immed64.ll: i64, f64 constant loads
llvm-svn: 45242
2007-12-20 00:44:13 +00:00
Dale Johannesen
f93ea63eaa
Enable EH on PPC Darwin. This basically works; there
...
are a couple of issues that show up with the optimizer,
but I don't think they're really EH problems.
(llvm-gcc testsuite users note: By default the testsuite
uses the unwinding code that's built as part of your local
llvm-gcc, which does not work. You need to trick it into
using the installed system unwinding code to get useful
results.)
llvm-svn: 45221
2007-12-19 21:54:36 +00:00
Scott Michel
83ac96e27d
CellSPU testcase, extract_elt.ll: extract vector element.
...
llvm-svn: 45219
2007-12-19 21:17:42 +00:00
Scott Michel
6cb9f6d20c
Two more test cases: or_ops.ll (arithmetic or operations) and vecinsert.ll
...
(vector insertions)
llvm-svn: 45216
2007-12-19 20:15:47 +00:00
Scott Michel
d4d96bb6f6
Add new immed16.ll test case, fix CellSPU errata to make test case work.
...
llvm-svn: 45196
2007-12-19 07:35:06 +00:00
Bill Wendling
ce9eae6687
Mark the "isRemat" instruction as never having side effects.
...
llvm-svn: 45190
2007-12-19 06:07:48 +00:00
Chris Lattner
93d750bbe3
add an obvious load folding missed optzn.
...
llvm-svn: 45161
2007-12-18 16:48:14 +00:00
Christopher Lamb
aeb76743dc
Fold certain additions through selects (and their compares) so as to eliminate subtractions. This code is often produced by the SMAX expansion in SCEV.
...
This implements test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll
llvm-svn: 45158
2007-12-18 09:34:41 +00:00
Chris Lattner
ad090a712a
add a missed case.
...
llvm-svn: 45141
2007-12-18 01:19:18 +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
Scott Michel
4f980e1acd
- Restore some i8 functionality in CellSPU
...
- New test case: nand.ll
llvm-svn: 45130
2007-12-17 22:32:34 +00:00
Bill Wendling
b33d6155da
LD_Fp64m should have "isRematerializable" set.
...
llvm-svn: 45128
2007-12-17 22:17:14 +00:00
Bill Wendling
ec8be72a8b
As per feedback, revised comments to (hopefully) make the different side effect
...
flags clearer.
llvm-svn: 45120
2007-12-17 21:02:07 +00:00
Christopher Lamb
a608afb52e
Change the PointerType api for creating pointer types. The old functionality of PointerType::get() has become PointerType::getUnqual(), which returns a pointer in the generic address space. The new prototype of PointerType::get() requires both a type and an address space.
...
llvm-svn: 45082
2007-12-17 01:12:55 +00:00
Chris Lattner
5e2b033d30
don't violate C TBAA rules, use FloatToBits instead.
...
llvm-svn: 45076
2007-12-16 20:41:33 +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
Scott Michel
307f334014
Start committing working test cases for CellSPU.
...
llvm-svn: 45050
2007-12-15 00:38:50 +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
Evan Cheng
6909ff8c4b
Fix ctlz and cttz. llvm definition requires them to return number of bits in of the src type when value is zero.
...
llvm-svn: 45029
2007-12-14 08:30:15 +00:00
Evan Cheng
51cf86ded0
Implement ctlz and cttz with bsr and bsf.
...
llvm-svn: 45024
2007-12-14 02:13:44 +00:00
Bill Wendling
c8c611e88f
Add flags to indicate that there are "never" side effects or that there "may be"
...
side effects for machine instructions.
llvm-svn: 45022
2007-12-14 01:48:59 +00:00
Evan Cheng
343929c773
Fold some and + shift in x86 addressing mode.
...
llvm-svn: 44970
2007-12-13 00:43:27 +00:00
Evan Cheng
64a1febf9a
Implicit def instructions, e.g. X86::IMPLICIT_DEF_GR32, are always re-materializable and they should not be spilled.
...
llvm-svn: 44960
2007-12-12 23:12:09 +00:00
Duncan Sands
47526c4a42
Remove host endianness info from TargetData and
...
put it in a new header System/Host.h instead.
Instead of getting the endianness from configure,
calculate it directly.
llvm-svn: 44959
2007-12-12 23:03:45 +00:00
Dan Gohman
0075ea1f5f
Allow vector integer constants to be created with
...
SelectionDAG::getConstant, in the same way as vector floating-point
constants. This allows the legalize expansion code for @llvm.ctpop and
friends to be usable with vector types.
llvm-svn: 44954
2007-12-12 22:21:26 +00:00
Evan Cheng
ad3e7f3286
Use shuffles to implement insert_vector_elt for i32, i64, f32, and f64.
...
llvm-svn: 44929
2007-12-12 07:55:34 +00:00
Evan Cheng
d36d69fe92
Lower a build_vector with all constants into a constpool load unless it can be done with a move to low part.
...
llvm-svn: 44921
2007-12-12 06:45:40 +00:00
Scott Michel
81b4099173
Correct typo for Linux: s/esp/%rsp/
...
llvm-svn: 44904
2007-12-12 02:38:28 +00:00
Nate Begeman
e9067c13ec
Allow the JIT to encode MMX instructions
...
llvm-svn: 44869
2007-12-11 18:06:14 +00:00
Evan Cheng
f6c2838f36
- Improved v8i16 shuffle lowering. It now uses pshuflw and pshufhw as much as
...
possible before resorting to pextrw and pinsrw.
- Better codegen for v4i32 shuffles masquerading as v8i16 or v16i8 shuffles.
- Improves (i16 extract_vector_element 0) codegen by recognizing
(i32 extract_vector_element 0) does not require a pextrw.
llvm-svn: 44836
2007-12-11 01:46:18 +00:00
Nate Begeman
8b194d1718
x86 doesn't actually want to custom lower v3i32
...
llvm-svn: 44835
2007-12-11 01:41:33 +00:00
Chris Lattner
f7c53191c0
Move TargetData::hostIsLittleEndian out of line, which means we
...
don't have to #include config.h in it. #including config.h breaks
other projects that have their own autoconf stuff and try to #include
the llvm headers. One obscure example is llvm-gcc.
llvm-svn: 44825
2007-12-11 00:28:59 +00:00
Anton Korobeynikov
005fe34c3b
Hey, English is not my native language :)
...
llvm-svn: 44820
2007-12-10 23:10:20 +00:00
Anton Korobeynikov
b003fb0ed7
Clarify the need of CFI() stuff
...
llvm-svn: 44819
2007-12-10 23:08:35 +00:00
Anton Korobeynikov
fd74645812
Provide convenient way to disable CFI stuff for old/broken assemblers.
...
Use it for Darwin.
llvm-svn: 44818
2007-12-10 23:04:38 +00:00
Chris Lattner
b511799808
Disable cfi directives for now, darwin does't support them.
...
These should probably be something like:
CFI(".cfi_def_cfa_offset 16\n")
where CFI is defined to a noop on darwin and other platforms
that don't support those directives.
llvm-svn: 44803
2007-12-10 19:10:18 +00:00
Anton Korobeynikov
cd497afc30
And finally annotate X86-64 version of callback.
...
All bad stuff from SSE version is implicitely inherited :)
llvm-svn: 44794
2007-12-10 15:27:07 +00:00
Anton Korobeynikov
49e2962ad3
Provide annotation for SSE version of callback. It's even more
...
broken, because doesn't mark xmm regs properly
llvm-svn: 44793
2007-12-10 15:13:55 +00:00
Anton Korobeynikov
0e4780cfe2
Annotate JIT callback function with call frame infromation.
...
This will allow us (theoretically) to unwind through JITer.
The code wasn't verified, so I'm pretty sure offsets are wrong :)
llvm-svn: 44792
2007-12-10 14:54:42 +00:00
Bill Wendling
8d8d9a2f5e
Reverting 44702. It wasn't correct to rename them.
...
llvm-svn: 44727
2007-12-08 23:58:46 +00:00
Chris Lattner
12fca81026
aesthetic changes, no functionality change. Evan, it's not clear
...
what 'Available' is, please add a comment near it and rename it
if appropriate.
llvm-svn: 44703
2007-12-08 07:22:58 +00:00
Bill Wendling
d10837def7
Renaming:
...
isTriviallyReMaterializable -> hasNoSideEffects
isReallyTriviallyReMaterializable -> isTriviallyReMaterializable
llvm-svn: 44702
2007-12-08 07:17:56 +00:00
Chris Lattner
e93a775a4d
Fix a significant code quality regression I introduced on PPC64 quite
...
a while ago. We now produce:
_foo:
mflr r0
std r0, 16(r1)
ld r2, 16(r1)
std r2, 0(r3)
ld r0, 16(r1)
mtlr r0
blr
instead of:
_foo:
mflr r0
std r0, 16(r1)
lis r0, 0
ori r0, r0, 16
ldx r2, r1, r0
std r2, 0(r3)
ld r0, 16(r1)
mtlr r0
blr
for:
void foo(void **X) {
*X = __builtin_return_address(0);
}
on ppc64.
llvm-svn: 44701
2007-12-08 07:04:58 +00:00
Chris Lattner
e16166b78d
implement __builtin_return_addr(0) on ppc.
...
llvm-svn: 44700
2007-12-08 06:59:59 +00:00
Chris Lattner
1024cda0bd
refactor some code to avoid overloading the name 'usesLR' in
...
different places to mean different things. Document what the
one in PPCFunctionInfo means and when it is valid.
llvm-svn: 44699
2007-12-08 06:39:11 +00:00
Evan Cheng
fdd03d0589
Doh
...
llvm-svn: 44694
2007-12-08 01:01:07 +00:00
Evan Cheng
28c2b7e647
Fix a compilation warning.
...
llvm-svn: 44692
2007-12-08 01:00:31 +00:00
Evan Cheng
6bfc0cadf3
Fix a compilation warning.
...
llvm-svn: 44691
2007-12-08 01:00:21 +00:00
Bill Wendling
c08dedb060
Initial commit of the machine code LICM pass. It successfully hoists this:
...
_foo:
li r2, 0
LBB1_1: ; bb
li r5, 0
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmplw cr0, r2, r4
bne cr0, LBB1_1 ; bb
LBB1_2: ; return
blr
to:
_foo:
li r2, 0
li r5, 0
LBB1_1: ; bb
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmplw cr0, r2, r4
bne cr0, LBB1_1 ; bb
LBB1_2: ; return
blr
ZOMG!! :-)
Moar to come...
llvm-svn: 44687
2007-12-07 21:42:31 +00:00
Evan Cheng
c4db072c74
Add comment.
...
llvm-svn: 44686
2007-12-07 21:30:01 +00:00
Evan Cheng
34c7b35135
Much improved v8i16 shuffles. (Step 1).
...
llvm-svn: 44676
2007-12-07 08:07:39 +00:00
Evan Cheng
4dc538449d
Remove a bogus optimization. It's not possible to do a move to low element to a <8 x i16> or <16 x i8> vector.
...
llvm-svn: 44669
2007-12-06 22:14:22 +00:00
Chris Lattner
c467b49c96
implement a readme entry, compiling the code into:
...
_foo:
movl $12, %eax
andl 4(%esp), %eax
movl _array(%eax), %eax
ret
instead of:
_foo:
movl 4(%esp), %eax
shrl $2, %eax
andl $3, %eax
movl _array(,%eax,4), %eax
ret
As it turns out, this triggers all the time, in a wide variety of
situations, for example, I see diffs like this in various programs:
- movl 8(%eax), %eax
- shll $2, %eax
- andl $1020, %eax
- movl (%esi,%eax), %eax
+ movzbl 8(%eax), %eax
+ movl (%esi,%eax,4), %eax
- shll $2, %edx
- andl $1020, %edx
- movl (%edi,%edx), %edx
+ andl $255, %edx
+ movl (%edi,%edx,4), %edx
Unfortunately, I also see stuff like this, which can be fixed in the
X86 backend:
- andl $85, %ebx
- addl _bit_count(,%ebx,4), %ebp
+ shll $2, %ebx
+ andl $340, %ebx
+ addl _bit_count(%ebx), %ebp
llvm-svn: 44656
2007-12-06 07:33:36 +00:00