Commit Graph

8254 Commits

Author SHA1 Message Date
Evan Cheng 29e62a59f3 Allow certain lea instructions to be rematerialized.
llvm-svn: 48855
2008-03-27 01:41:09 +00:00
Evan Cheng 4fb07c6500 Remove an unused command line option.
llvm-svn: 48854
2008-03-27 01:30:24 +00:00
Roman Levenstein 358e04a185 Use a linked data structure for the uses lists of an SDNode, just like
LLVM Value/Use does and MachineRegisterInfo/MachineOperand does.
This allows constant time for all uses list maintenance operations.

The idea was suggested by Chris. Reviewed by Evan and Dan.
Patch is tested and approved by Dan.

On normal use-cases compilation speed is not affected. On very big basic
blocks there are compilation speedups in the range of 15-20% or even better. 

llvm-svn: 48822
2008-03-26 12:39:26 +00:00
Evan Cheng 292063603e Fix some SSE4.1 instruction encoding bugs.
llvm-svn: 48815
2008-03-26 08:11:49 +00:00
Dale Johannesen ad6c23d5e9 Use ## for comment delimiter on darwin x86-32, so
llvm's output .s files will go through gcc -std=c99
without triggering preprocesser errors.  Approach
suggested by Daveed Vandevoorde.

llvm-svn: 48808
2008-03-25 23:29:30 +00:00
Evan Cheng ddc58ff92a Smaller function alignment when optimizing for size.
llvm-svn: 48805
2008-03-25 22:29:46 +00:00
Evan Cheng 88c44ef91f Rename option -optimizefor-size to -optimize-size.
llvm-svn: 48804
2008-03-25 22:28:39 +00:00
Dan Gohman c60c67fc37 Add explicit keywords.
llvm-svn: 48801
2008-03-25 22:06:05 +00:00
Dan Gohman bdc24adaaf A quick nm audit turned up several fixed tables and objects that were
marked read-write. Use const so that they can be allocated in a
read-only segment.

llvm-svn: 48800
2008-03-25 21:45:14 +00:00
Devang Patel 246a52740b Add optimize-for-size knob.
llvm-svn: 48793
2008-03-25 21:02:35 +00:00
Dan Gohman 883cbfd0ba Add CMP32mr and friends to the load-unfolding table. Among
other things, this allows the scheduler to unfold a load operand
in the 2008-01-08-SchedulerCrash.ll testcase, so it now successfully
clones the comparison to avoid a pushf+popf.

llvm-svn: 48777
2008-03-25 16:53:19 +00:00
Evan Cheng 50b536eef9 Add \t after .set. Fix by Jay Freeman.
llvm-svn: 48753
2008-03-24 23:36:49 +00:00
Bill Wendling 6306183df3 Use the bit size of the operand instead of the hard-coded 32 to generate the
mask.

llvm-svn: 48750
2008-03-24 23:16:37 +00:00
Evan Cheng 615488ab45 - SSE4.1 extractfps extracts a f32 into a gr32 register. Very useful! Not. Fix the instruction specification and teaches lowering code to use it only when the only use is a store instruction.
llvm-svn: 48746
2008-03-24 21:52:23 +00:00
Evan Cheng 58db865d6e Remove duplicated entries.
llvm-svn: 48714
2008-03-23 22:56:07 +00:00
Anton Korobeynikov 1fdd5e9133 Minor typo fixes. Also add another FIXME.
llvm-svn: 48710
2008-03-23 20:32:06 +00:00
Anton Korobeynikov 17fb491469 Add license header
llvm-svn: 48707
2008-03-23 14:53:18 +00:00
Anton Korobeynikov 9f0e820fa3 Add Win64 compilation callback. This allows easy examples to be JITed on Win64!
llvm-svn: 48706
2008-03-23 14:44:32 +00:00
Anton Korobeynikov a347663762 Provide a JIT selector on win64
llvm-svn: 48704
2008-03-23 13:43:47 +00:00
Anton Korobeynikov 7574ead985 Hack out the PIC mode on Win64 targets. This needs to be investigated later.
llvm-svn: 48703
2008-03-23 13:41:18 +00:00
Anton Korobeynikov 4733e72a25 Code cleanup. Provide generic way of selecting JIT pointer bitwidth regardless
of compiler used.

llvm-svn: 48702
2008-03-23 13:40:45 +00:00
Anton Korobeynikov bd47269f13 Remove old-standing obsolete code.
llvm-svn: 48701
2008-03-23 12:32:54 +00:00
Anton Korobeynikov cec773d8e7 Honour built-in defines on win64 targets for automatically subtarget recognize.
Force stack alignment to 16 bytes on win targets.

llvm-svn: 48695
2008-03-22 21:18:22 +00:00
Anton Korobeynikov 07a789d2b5 Recognize "windows" in target triple, not only "win32"
llvm-svn: 48694
2008-03-22 21:12:53 +00:00
Anton Korobeynikov b86e0936f1 Add information about callee-saved registers on Win64
llvm-svn: 48692
2008-03-22 21:04:01 +00:00
Anton Korobeynikov 7f125b2ba5 Add convenient helper for win64 check. Simplify things slightly.
llvm-svn: 48691
2008-03-22 20:57:27 +00:00
Anton Korobeynikov 7b4f4e1a86 Initial support for Win64 calling conventions. Still in early state.
llvm-svn: 48690
2008-03-22 20:37:30 +00:00
Anton Korobeynikov 2fa75184f3 Another comments fixing
llvm-svn: 48683
2008-03-22 07:53:40 +00:00
Chris Lattner c55b444a8f Restore this assert now that the livevar bug is fixed.
This verifies kill info for "ret" fp operands is right.

llvm-svn: 48656
2008-03-21 20:41:27 +00:00
Duncan Sands d97eea372a Introduce a new node for holding call argument
flags.  This is needed by the new legalize types
infrastructure which wants to expand the 64 bit
constants previously used to hold the flags on
32 bit machines.  There are two functional changes:
(1) in LowerArguments, if a parameter has the zext
attribute set then that is marked in the flags;
before it was being ignored; (2) PPC had some bogus
code for handling two word arguments when using the
ELF 32 ABI, which was hard to convert because of
the bogusness.  As suggested by the original author
(Nicolas Geoffray), I've disabled it for the moment.
Tested with "make check" and the Ada ACATS testsuite.

llvm-svn: 48640
2008-03-21 09:14:45 +00:00
Chris Lattner 68b11e14bc remove Evan's "ugly hack" that sorta attempted to get
x86-64 return conventions correct, but was never enabled.
We can now do the "right thing" with multiple return values.

llvm-svn: 48635
2008-03-21 06:50:21 +00:00
Chris Lattner 5abbe6cef5 Add support for calls that return two FP values in
ST(0)/ST(1).

llvm-svn: 48634
2008-03-21 06:38:26 +00:00
Chris Lattner 7e59a30e9f disable a bogus assertion.
llvm-svn: 48633
2008-03-21 06:01:05 +00:00
Chris Lattner b6f04a3e0a Enable support for returning two long-double values in ST(0)/ST(1).
This allows us to compile fp-stack-2results.ll into:

_test:
	fldz
	fld1
	ret

which returns 1 in ST(0) and 0 in ST(1).  This is needed for x86-64
_Complex long double.

llvm-svn: 48632
2008-03-21 05:57:20 +00:00
Evan Cheng 92b4488202 Undo 48570. Correctly match mmx shift instructions with an immediate operand.
llvm-svn: 48627
2008-03-21 00:40:09 +00:00
Chris Lattner fd5fe2a83d add a note.
llvm-svn: 48583
2008-03-20 04:46:13 +00:00
Evan Cheng 7a3e750fd2 Fix this xform: (sra (shl X, m), result_size) -> (sign_extend (trunc (shl X, result_size - n - m)))
llvm-svn: 48578
2008-03-20 02:18:41 +00:00
Chris Lattner a7cca362af detabify llvm, patch by Mike Stump!
llvm-svn: 48577
2008-03-20 01:22:40 +00:00
Scott Michel bbaf3edace Add more patterns to match in the integer comparison test harnesses.
Fix bugs encountered, mostly due to range matching for immediates;
the CellSPU's 10-bit immediates are sign extended, covering a
larger range of unsigned values.

llvm-svn: 48575
2008-03-20 00:51:36 +00:00
Evan Cheng bbba76fc99 Add intrinsics to match mmx shift builtin's with immediate operand.
llvm-svn: 48569
2008-03-19 23:38:52 +00:00
Devang Patel 718da668ab PassInfo keep tracks whether a pass is an analysis pass or not.
llvm-svn: 48554
2008-03-19 21:56:59 +00:00
Dan Gohman b9056838d2 Add support for multiple return values for the PPC target by
converting call result lowering to use the CallingConvLowering
infastructure.

llvm-svn: 48552
2008-03-19 21:39:28 +00:00
Arnold Schwaighofer 7da2bceb3b Don't loose incoming argument registers. Fix documentation style.
llvm-svn: 48545
2008-03-19 16:39:45 +00:00
Christopher Lamb 8fe9109469 Fix X86's isTruncateFree to not claim that truncate to i1 is free. This fixes Bill's testcase that failed for r48491.
llvm-svn: 48542
2008-03-19 08:30:06 +00:00
Bill Wendling 2f6ab65d77 On Darwin, GCC issues a ".globl" for something that has a "visibility protected"
attribute instead of ".protected".

llvm-svn: 48516
2008-03-18 23:38:12 +00:00
Evan Cheng 484064370a Fix a x86-64 isel lowering bug that's been around forever. A x86-64 varargs function implicitly reads X86::AL, don't clobber it!
llvm-svn: 48515
2008-03-18 23:36:35 +00:00
Dale Johannesen cf87e71053 Make Complex long long/double/long double work
in ppc64 mode.

llvm-svn: 48459
2008-03-17 17:11:08 +00:00
Chris Lattner 7d4152bda6 Check in some #ifdef'd out code switching call argument
lowering over to SparcCallingConv.td.  We can't make the switch
yet because we can't say to pass f64 registers in 2 x i32 registers
with the td file yet.

llvm-svn: 48449
2008-03-17 06:58:37 +00:00
Chris Lattner 52f16deb65 minor cleanups
llvm-svn: 48448
2008-03-17 06:57:02 +00:00
Evan Cheng 24bc123e80 Unbreak JIT. Ignore TargetInstrInfo::IMPLICIT_DEF.
llvm-svn: 48447
2008-03-17 06:56:52 +00:00
Chris Lattner 4eabbb8f11 remove dead code
llvm-svn: 48445
2008-03-17 06:04:10 +00:00
Chris Lattner db26db2158 Switch sparc from using LowerCallTo to using LowerOperation(CALL) like
other targets.  Use autogenerated calling conv to lower result of
calls.

llvm-svn: 48444
2008-03-17 06:01:07 +00:00
Chris Lattner 49b269d780 Start moving sparc to use SparcCallingConv.td, switching over
return lowering first.  This fixes a bug where the top and bottom
of i64 values were returned in the wrong registers before.

llvm-svn: 48443
2008-03-17 05:41:48 +00:00
Chris Lattner 0a1762e374 split sparc lowering out into SparcISelLowering.{cpp|h} to follow
best practices.

llvm-svn: 48442
2008-03-17 03:21:36 +00:00
Chris Lattner 5c5597a572 refactor the LowerOperation code out to individual functions for
each lowering, which is 'best practice'.

llvm-svn: 48441
2008-03-17 02:52:07 +00:00
Dale Johannesen 92dcf1e0c2 Next round of PPC32 ABI changes. Allow for gcc
behavior where a callee thinks a param will be
present in memory, even though the ABI doc says
it doesn't have to be.  Handle complex long long
and complex double (4 and 8 return regs).

llvm-svn: 48439
2008-03-17 02:13:43 +00:00
Chris Lattner af8d3c6699 various rotate fun.
llvm-svn: 48438
2008-03-17 01:47:51 +00:00
Nate Begeman 9030ecec88 Add a couple missing SSE4 instructions
llvm-svn: 48430
2008-03-16 21:14:46 +00:00
Gordon Henriksen ab4b7d36cd C and Objective Caml bindings for the TargetData class.
llvm-svn: 48422
2008-03-16 20:08:03 +00:00
Christopher Lamb d3d0ad3f58 Make insert_subreg a two-address instruction, vastly simplifying LowerSubregs pass. Add a new TII, subreg_to_reg, which is like insert_subreg except that it takes an immediate implicit value to insert into rather than a register.
llvm-svn: 48412
2008-03-16 03:12:01 +00:00
Evan Cheng ec7533b620 Remove isImplicitDef TargetInstrDesc flag.
llvm-svn: 48381
2008-03-15 00:19:36 +00:00
Evan Cheng 0e7b00d79f Replace all target specific implicit def instructions with a target independent one: TargetInstrInfo::IMPLICIT_DEF.
llvm-svn: 48380
2008-03-15 00:03:38 +00:00
Dale Johannesen 0dfd3f33f7 Implement the real calling convention for ppc32 Altivec:
vectors go at the end of the memory area, after all
non-vector parameters.

llvm-svn: 48364
2008-03-14 17:41:26 +00:00
Evan Cheng 5be52a6053 Fix some 80 col violations.
llvm-svn: 48361
2008-03-14 07:46:48 +00:00
Evan Cheng 96bdbd6c5d Fix a number of encoding bugs. SSE 4.1 instructions MPSADBWrri, PINSRDrr, etc. have 8-bits immediate field (ImmT == Imm8).
llvm-svn: 48360
2008-03-14 07:39:27 +00:00
Evan Cheng 77c8da7f00 Add debugging stuff.
llvm-svn: 48359
2008-03-14 07:13:42 +00:00
Chris Lattner 477d0f5294 Add an issue that is preventing instcombine from doing a simplification.
llvm-svn: 48356
2008-03-14 06:00:19 +00:00
Dan Gohman eac0c96371 Use SDTNone instead of duplicating it.
llvm-svn: 48346
2008-03-13 23:07:40 +00:00
Christopher Lamb dd55d3f1b2 Get rid of a pseudo instruction and replace it with subreg based operation on real instructions, ridding the asm printers of the hack used to do this previously. In the process, update LowerSubregs to be careful about eliminating copies that have side affects.
Note: the coalescer will have to be careful about this too, when it starts coalescing insert_subreg nodes.
llvm-svn: 48329
2008-03-13 05:47:01 +00:00
Dale Johannesen 6424bd0b11 Do not promote float params to double in varargs
calls here.  This was done earlier for params in
the varargs part of the params; any float params
that survive to here are in the non-varargs part,
and must not be promoted.

llvm-svn: 48310
2008-03-12 23:40:01 +00:00
Chris Lattner 8a923e7c28 Reimplement the parameter attributes support, phase #1. hilights:
1. There is now a "PAListPtr" class, which is a smart pointer around
   the underlying uniqued parameter attribute list object, and manages
   its refcount.  It is now impossible to mess up the refcount.
2. PAListPtr is now the main interface to the underlying object, and
   the underlying object is now completely opaque.
3. Implementation details like SmallVector and FoldingSet are now no
   longer part of the interface.
4. You can create a PAListPtr with an arbitrary sequence of
   ParamAttrsWithIndex's, no need to make a SmallVector of a specific 
   size (you can just use an array or scalar or vector if you wish).
5. All the client code that had to check for a null pointer before
   dereferencing the pointer is simplified to just access the 
   PAListPtr directly.
6. The interfaces for adding attrs to a list and removing them is a
   bit simpler.

Phase #2 will rename some stuff (e.g. PAListPtr) and do other less 
invasive changes.

llvm-svn: 48289
2008-03-12 17:45:29 +00:00
Evan Cheng 99ee78ef63 Clean up my own mess.
X86 lowering normalize vector 0 to v4i32. However DAGCombine can fold (sub x, x) -> 0 after legalization. It can create a zero vector of a type that's not expected (e.g. v8i16). We don't want to disable the optimization since leaving a (sub x, x) is really bad. Add isel patterns for other types of vector 0 to ensure correctness. It's highly unlikely to happen other than in bugpoint reduced test cases.

llvm-svn: 48279
2008-03-12 07:02:50 +00:00
Dale Johannesen 0d98256c05 One more bit of Altivec parameter passing.
llvm-svn: 48269
2008-03-12 00:49:20 +00:00
Dale Johannesen b28456ef18 Implement Altivec passing to varargs functions on ppc.
llvm-svn: 48264
2008-03-12 00:22:17 +00:00
Anton Korobeynikov e8fa50f63a Correctly propagate thread-local flag from aliasee to alias. This fixes PR2137
llvm-svn: 48257
2008-03-11 22:38:53 +00:00
Dan Gohman 24570836b2 Use PassManagerBase instead of FunctionPassManager for functions
that merely add passes. This allows them to be used with either
FunctionPassManager or PassManager, or even with a custom new
kind of pass manager.

llvm-svn: 48256
2008-03-11 22:29:46 +00:00
Chris Lattner 8abed80a69 Implement basic support for the 'f' register class constraint. This basically
works, but probably won't if you mix it with 't' or 'u' yet.

llvm-svn: 48243
2008-03-11 19:50:13 +00:00
Chris Lattner 7b27ccfd5e coalesce away 80-bit floating point copies.
llvm-svn: 48241
2008-03-11 19:30:09 +00:00
Chris Lattner 7930d8e775 convert a massive if statement to a switch.
llvm-svn: 48240
2008-03-11 19:28:17 +00:00
Chris Lattner 120ad01fcb start handling the 'f' x87 constraint.
llvm-svn: 48239
2008-03-11 19:06:29 +00:00
Christopher Lamb 342e4104d3 Missed part of recommit.
llvm-svn: 48224
2008-03-11 10:27:36 +00:00
Christopher Lamb aa7c2105de Recommitting parts of r48130. These do not appear to cause the observed failures.
llvm-svn: 48223
2008-03-11 10:09:17 +00:00
Evan Cheng d85667b89c If there are multiple register classes that a register belongs to, return the super-class (e.g. on x86, returns GR32, not GR32_).
llvm-svn: 48220
2008-03-11 07:54:14 +00:00
Evan Cheng e88a625ecd When the register allocator runs out of registers, spill a physical register around the def's and use's of the interval being allocated to make it possible for the interval to target a register and spill it right away and restore a register for uses. This likely generates terrible code but is before than aborting.
llvm-svn: 48218
2008-03-11 07:19:34 +00:00
Evan Cheng 5b59e372dc In 32-bit mode, mark 64-bit GPR's as unallocatable.
llvm-svn: 48217
2008-03-11 07:16:00 +00:00
Nick Lewycky a3860a2422 Fix the build on gcc 4.2.
llvm-svn: 48212
2008-03-11 05:56:09 +00:00
Chris Lattner 1bd44363f2 Change the model for FP Stack return to use fp operands on the
RET instruction instead of using FpSET_ST0_32.  This also generalizes
the code to handling returning of multiple FP results.

llvm-svn: 48209
2008-03-11 03:23:40 +00:00
Dan Gohman d6819da453 Generalize ExpandIntToFP to handle the case where the operand is legal
and it's the result that requires expansion. This code is a little confusing
because the TargetLoweringInfo tables for [US]INT_TO_FP use the operand type
(the integer type) rather than the result type. 

llvm-svn: 48206
2008-03-11 01:59:03 +00:00
Chris Lattner a4fa0ad30d abort with an assert instead of a cerr to get line#
llvm-svn: 48199
2008-03-10 23:56:08 +00:00
Scott Michel 92275427e5 - Style cleanup in IA64ISelLowering.h: add 'virtual' keyword for consistency.
- Add test pattern matching in CellSPU's icmp32.ll test harness
- Fix CellSPU fcmp.ll-generated assert.

llvm-svn: 48197
2008-03-10 23:49:09 +00:00
Chris Lattner 7362d38391 Don't emit FP_REG_KILL into a block that just returns. Nothing
can be live out of the block anyway, so it isn't needed.

llvm-svn: 48192
2008-03-10 23:34:12 +00:00
Dale Johannesen 0fb187f81b Disable prolog code that aligns the stack when a
local object of >16 byte alignment exists.  It does not
work and getting it to work is not trivial, as explained
in the comment.  This fixes all the remaining ppc32
failures in the struct-layout-1 part of the gcc testsuite.

(gcc does not support this either, and the only way to
get such an object is with __attribute__((aligned)) or
generic vectors; it can't be done in a standard-conforming
program, or with Altivec.  So I think disabling it is OK.)

llvm-svn: 48188
2008-03-10 22:59:46 +00:00
Bill Wendling c6c48fca74 Change the "enable/disable" mechanism so that we can enable PPC register
scavenging for 32-bit and 64-bit separately.

llvm-svn: 48186
2008-03-10 22:49:16 +00:00
Chris Lattner 4b3a7fa823 Eliminate the FP_GET_ST0/FP_SET_ST0 target-specific dag nodes, just lower to
copyfromreg/copytoreg instead.

llvm-svn: 48174
2008-03-10 21:08:41 +00:00
Evan Cheng ae2c56d93e Default ISD::PREFETCH to expand.
llvm-svn: 48169
2008-03-10 19:38:10 +00:00
Evan Cheng d4e1d9eeb2 Revert 48125, 48126, and 48130 for now to unbreak some x86-64 tests.
llvm-svn: 48167
2008-03-10 19:31:26 +00:00
Chris Lattner 514b3ed536 fix 80 col violations.
llvm-svn: 48166
2008-03-10 18:55:53 +00:00
Nicolas Geoffray 708784ea4f Stylistic modifications. No functionality changes.
llvm-svn: 48158
2008-03-10 17:46:45 +00:00
Scott Michel 48e3375544 Integer comparison tests for CellSPU.
llvm-svn: 48152
2008-03-10 16:58:52 +00:00
Scott Michel a6729e8666 Give TargetLowering::getSetCCResultType() a parameter so that ISD::SETCC's
return ValueType can depend its operands' ValueType.

This is a cosmetic change, no functionality impacted.

llvm-svn: 48145
2008-03-10 15:42:14 +00:00