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3149 Commits

Author SHA1 Message Date
Bill Wendling
74ab84c31e Change "Name" to "AsmName" in the target register info. Gee, a refactoring tool 
would have been a Godsend here!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47625 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 21:11:01 +00:00
Arnold Schwaighofer
16a3e52d08 Correct function comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47606 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 17:50:59 +00:00
Bill Wendling
85db3a96b4 De-tabify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47600 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 10:57:23 +00:00
Arnold Schwaighofer
a2a4b475fc Add support for intermodule tail calls on x86/32bit with 
GOT-style position independent code. Before only tail calls to
protected/hidden functions within the same module were optimized.
Now all function calls are tail call optimized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47594 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 10:21:54 +00:00
Arnold Schwaighofer
865c68188a Change the lowering of arguments for tail call optimized 
calls. Before arguments that could overwrite each other were
explicitly lowered to a stack slot, not giving the register allocator
a chance to optimize. Now a sequence of copyto/copyfrom virtual
registers ensures that arguments are loaded in (virtual) registers
before they are lowered to the stack slot (and might overwrite each
other). Also parameter stack slots are marked mutable for
(potentially) tail calling functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47593 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 09:19:59 +00:00
Dan Gohman
545914311a Revert the assert for MUL_LOHI with an unused high result; Chris 
pointed out that this isn't correct at -O0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47575 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 22:43:48 +00:00
Dale Johannesen
14e2ea9a55 Revise previous patch per review. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47573 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 22:29:22 +00:00
Dan Gohman
c2d9b5fcdf Add an assert to verify that we don't see an 
{S,U}MUL_LOHI with an unused high value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47569 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 22:15:55 +00:00
Dan Gohman
fcf81db600 Remove the hack that turned an {S,U}MUL_LOHI with an unused high 
result into a MUL late in the X86 codegen process. ISD::MUL is
once again Legal on X86, so this is no longer needed. And, the
hack was suboptimal; see PR1874 for details.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47567 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 21:57:04 +00:00
Dan Gohman
2e68b6f52d Convert MaskedValueIsZero and all its users to use APInt. Also add 
a SignBitIsZero function to simplify a common use case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47561 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 21:11:39 +00:00
Dale Johannesen
079f2a66ae Expand removal of MMX memory copies to allow 1 level 
of TokenFactor underneath chain (seems to be enough)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47554 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 19:20:14 +00:00
Evan Cheng
c19eca38ef Turning on remat of pic loads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47524 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 02:07:42 +00:00
Evan Cheng
b2a0abce1e No need recognize load from a fixed argument slot as re-materializable. LiveIntervalAnalysis already handles it as a special case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47522 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 01:47:44 +00:00
Dale Johannesen
22c3979fca Split ParameterAttributes.h, putting the complicated 
stuff into ParamAttrsList.h.  Per feedback from
ParamAttrs changes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47504 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 22:17:59 +00:00
Dale Johannesen
3edd6dcf82 MMX vectors are passed 4-byte aligned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47483 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 17:47:28 +00:00
Evan Cheng
d8850a512e Allow re-materialization of pic load (controlled by -remat-pic-load for now). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47476 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 09:25:47 +00:00
Chris Lattner
d2b1fb27df copy mmx values from/to memory with GPRs on x86-32 
instead of with mmx registers.  This horribleness is apparently
done by gcc to avoid having to insert emms in places that really 
should have it.  This is the second half of rdar://5741668.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47474 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 05:18:04 +00:00
Chris Lattner
149a4e56fc Start using GPR's to copy around mmx value instead of mmx regs. 
GCC apparently does this, and code depends on not having to do
emms when this happens.  This is x86-64 only so far, second half
should handle x86-32.

rdar://5741668


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47470 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 02:09:43 +00:00
Eli Friedman
a2e7efa6d3 A few minor updates, removing implemented stuff and adding a couple of 
new things.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47458 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 21:16:49 +00:00
Chris Lattner
7c1687c196 Dan implemented one multiply issue. Replace it with another. :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47431 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 06:51:29 +00:00
Andrew Lenharth
ab0b949e0e Atomic op support. If any gcc test uses __sync builtins, it might start failing on archs that haven't implemented them yet 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47430 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 06:45:13 +00:00
Evan Cheng
3738f2d59f Poorly named option. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47400 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 20:57:32 +00:00
Anton Korobeynikov
4aefd6b7d4 Fix newly-introduced 4.3 warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47375 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 12:07:57 +00:00
Anton Korobeynikov
7c1c261272 Remove bunch of gcc 4.3-related warnings from Target 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47369 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:22:39 +00:00
Anton Korobeynikov
ae9f3a3b7c Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:08:44 +00:00
Evan Cheng
79964fdbaf Disable for now. This is pessimizing code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47354 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 02:29:17 +00:00
Evan Cheng
e9c608d6cc Add hidden option -x86-fold-and-in-test to test the effect the test / and folding change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47351 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 23:36:51 +00:00
Chris Lattner
ce2bcc8839 Don't fold and's into test instructions if they have multiple uses. 
This compiles test-nofold.ll into:

_test:
	movl	$15, %ecx
	andl	4(%esp), %ecx
	testl	%ecx, %ecx
	movl	$42, %eax
	cmove	%ecx, %eax
	ret

instead of:
_test:
	movl	4(%esp), %eax
	movl	%eax, %ecx
	andl	$15, %ecx
	testl	$15, %eax
	movl	$42, %eax
	cmove	%ecx, %eax
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47330 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 17:37:35 +00:00
Evan Cheng
422cba6ed0 Me not like duplicated comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47300 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 02:05:16 +00:00
Evan Cheng
efec751a1b - When DAG combiner is folding a bit convert into a BUILD_VECTOR, it should check if it's essentially a SCALAR_TO_VECTOR. Avoid turning (v8i16) <10, u, u, u> to <10, 0, u, u, u, u, u, u>. Instead, simply convert it to a SCALAR_TO_VECTOR of the proper type. 
- X86 now normalize SCALAR_TO_VECTOR to (BIT_CONVERT (v4i32 SCALAR_TO_VECTOR)). Get rid of X86ISD::S2VEC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47290 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 23:04:32 +00:00
Dan Gohman
b00ee21f21 Chris pointed out that it's not necessary to set i64 MUL to Expand 
on x86-32 since i64 itself is not a Legal type. And, update some
comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47282 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 19:34:53 +00:00
Chris Lattner
92b416f64e Add a note about sext from i1 plus flags use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47278 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 18:30:13 +00:00
Dan Gohman
339ffedca9 Don't mark scalar integer multiplication as Expand on x86, since x86 
has plain one-result scalar integer multiplication instructions.
This avoids expanding such instructions into MUL_LOHI sequences that
must be special-cased at isel time, and avoids the problem with that
code that provented memory operands from being folded.

This fixes PR1874, addressesing the most common case. The uncommon
cases of optimizing multiply-high operations will require work
in DAGCombiner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47277 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 17:55:26 +00:00
Chris Lattner
456012c72e move PR2053 to here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47237 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-17 19:43:57 +00:00
Andrew Lenharth
d497d9fab6 I cannot find a libgcc function for this builtin. Therefor expanding it to a noop (which is how it use to be treated). If someone who knows the x86 backend better than me could tell me how to get a lock prefix on an instruction, that would be nice to complete x86 support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47213 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-16 14:46:26 +00:00
Andrew Lenharth
22c5c1b2df llvm.memory.barrier, and impl for x86 and alpha 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47204 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-16 01:24:58 +00:00
Chris Lattner
ec321b4d64 Handle \n's in value names for more targets. The asm printers 
really really really need refactoring :(



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47171 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 19:04:54 +00:00
Chris Lattner
3502d0dac3 If the llvm name contains an unprintable character, don't print it in 
the global comment.  This prevents printing things like:

...  # foo
bar

when the name is "foo\nbar".



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47170 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 18:56:05 +00:00
Dale Johannesen
ab1a0354ec Remove warning about 64-bit code on processor 
that doesn't support it.  Per Chris.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47162 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 18:09:51 +00:00
Dale Johannesen
b4c9a687eb nocona, core2 and penryn support 64 bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47149 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 01:22:41 +00:00
Duncan Sands
00fee65fd2 In TargetLowering::LowerCallTo, don't assert that 
the return value is zero-extended if it isn't
sign-extended.  It may also be any-extended.
Also, if a floating point value was returned
in a larger floating point type, pass 1 as the
second operand to FP_ROUND, which tells it
that all the precision is in the original type.
I think this is right but I could be wrong.
Finally, when doing libcalls, set isZExt on
a parameter if it is "unsigned".  Currently
isSExt is set when signed, and nothing is
set otherwise.  This should be right for all
calls to standard library routines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47122 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 17:28:50 +00:00
Nate Begeman
e179584f9b Change how FP immediates are handled. 
1) ConstantFP is now expand by default
2) ConstantFP is not turned into TargetConstantFP during Legalize
   if it is legal.

This allows ConstantFP to be handled like Constant, allowing for 
targets that can encode FP immediates as MachineOperands.

As a bonus, fix up Itanium FP constants, which now correctly match,
and match more constants!  Hooray.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47121 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 08:57:00 +00:00
Chris Lattner
eb05f90c71 upgrade some entries, remove stuff that is done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47109 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 06:19:02 +00:00
Chris Lattner
ea1cddf546 the mid-level optimizer removes this stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47108 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 05:43:18 +00:00
Chris Lattner
48b4d96949 this one is easy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47107 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 05:41:38 +00:00
Chris Lattner
8b0cb7bcc6 This readme entry is done, testcase here: CodeGen/X86/zero-remat.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47106 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 05:39:46 +00:00
Dan Gohman
f4f92f5ebe Assigning an APInt to 0 with plain assignment gives it a one-bit 
size. Initialize these APInts to properly-sized zero values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47099 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 23:07:24 +00:00
Dan Gohman
977a76fbb6 Simplify some logic in ComputeMaskedBits. And change ComputeMaskedBits 
to pass the mask APInt by value, not by reference. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47096 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:28:48 +00:00
Nicolas Geoffray
afe6c2b001 Enable exception handling int JIT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47079 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 18:39:37 +00:00
Nate Begeman
b5041b3085 readme updates 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47051 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 07:06:12 +00:00
Evan Cheng
a4d16a1f0d commuteInstr() can now commute non-ssa machine instrs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47043 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 02:46:49 +00:00
Dan Gohman
fd29e0eb06 Convert SelectionDAG::ComputeMaskedBits to use APInt instead of uint64_t. 
Add an overload that supports the uint64_t interface for use by clients
that haven't been updated yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47039 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 00:35:47 +00:00
Dale Johannesen
3006c39e3a __DATA not __DATA__ is the right segment name on darwin. 
Spotted by Nick Kledzik.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47037 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 23:35:09 +00:00
Nate Begeman
cdd1eeca2c SSE4.1 64b integer insert/extract pattern support 
Move formats into the formats file


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47035 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 22:51:28 +00:00
Evan Cheng
9f143ce989 Only using x86-64 rip relative addressing in non-staic mode? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47019 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 19:20:46 +00:00
Evan Cheng
add251754c Update comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47002 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 07:59:55 +00:00
Evan Cheng
5ae45caf79 Unbreak various insert_vector_elt and extract_vector_elt tests in presence of SSE4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47001 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 07:59:45 +00:00
Nate Begeman
14d12caf1d Enable SSE4 codegen and pattern matching. 
Add some notes to the README.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46949 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-11 04:19:36 +00:00
Nate Begeman
ab5d56c6b9 xmm0 variable blends 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46931 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-10 18:47:57 +00:00
Dan Gohman
6f0d024a53 Rename MRegisterInfo to TargetRegisterInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46930 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-10 18:45:23 +00:00
Nate Begeman
fea2be50b9 memopv16i8 had wrong alignment requirement, would have broken pabsb 
pabs{b,w,d} are not two address
fix extract-to-mem sse4 ops
add sse4 vector sign extend nodes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46915 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-09 23:46:37 +00:00
Nate Begeman
1426d52cab Skeleton of insert and extract matching, more to come 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46902 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-09 01:38:08 +00:00
Evan Cheng
5fd79d0560 It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46893 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-08 21:20:40 +00:00
Dale Johannesen
0c191872ab 64-bit (MMX) vectors do not need restrictive alignment. 
128-bit vectors need it only when SSE is on.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46890 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-08 19:48:20 +00:00
Dan Gohman
60783304f6 Avoid needlessly casting away const qualifiers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46877 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-08 03:29:40 +00:00
Evan Cheng
33663fc104 Added missing entries in X86 load / store folding tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46866 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-08 00:12:56 +00:00
Dan Gohman
3069b87437 Follow Chris' suggestion; change the PseudoSourceValue accessors 
to return pointers instead of references, since this is always what
is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46857 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-07 18:41:25 +00:00
Dan Gohman
4fdad172de Add SourceValue information for outgoing argument stores on x86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46854 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-07 16:28:05 +00:00
Evan Cheng
be3bf42331 Fix a x86-64 codegen deficiency. Allow gv + offset when using rip addressing mode. 
Before:
_main:
        subq    $8, %rsp
        leaq    _X(%rip), %rax
        movsd   8(%rax), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret
Now:
_main:
        subq    $8, %rsp
        movsd   _X+8(%rip), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret

Notice there is another idiotic codegen issue that needs to be fixed asap:
xorl    %ecx, %ecx
movl    %ecx, %eax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46850 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-07 08:53:49 +00:00
Evan Cheng
15246738f2 In some cases, e.g. ADD32ri, no transformation is made. Guide against it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46849 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-07 08:29:53 +00:00
Dan Gohman
69de1932b3 Re-apply the memory operand changes, with a fix for the static 
initializer problem, a minor tweak to the way the
DAGISelEmitter finds load/store nodes, and a renaming of the
new PseudoSourceValue objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46827 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-06 22:27:42 +00:00
Dale Johannesen
e672af15d6 Implement sseregparm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46764 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-05 20:46:33 +00:00
Evan Cheng
4e3f5a4e9c Dwarf requires variable entries to be in the source order. Right now, since we are recording variable information at isel time this means parameters would appear in the reverse order. The short term fix is to issue recordVariable() at asm printing time instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46724 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 23:06:48 +00:00
Nate Begeman
204e84e138 The rest of the SSE4.1 intrinsic patterns that are obvious to me. Getting 
Evan's help with the rest.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 06:00:24 +00:00
Nate Begeman
2f6f1c02ca Some more SSE 4.1 intrinsic patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46696 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 05:34:34 +00:00
Nate Begeman
63ec90a6a8 SSE 4.1 Intrinsics and detection 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46681 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 07:18:54 +00:00
Evan Cheng
4eecdeb3fa Get rid of the annoying blank lines before labels. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46667 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 08:39:46 +00:00
Nick Lewycky
916a9f071f Don't use uninitialized values. Fixes vec_align.ll on X86 Linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46666 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 08:29:58 +00:00
Evan Cheng
a844bdeab3 SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc. 
Added ISD::DECLARE node type to represent llvm.dbg.declare intrinsic. Now the intrinsic calls are lowered into a SDNode and lives on through out the codegen passes.
For now, since all the debugging information recording is done at isel time, when a ISD::DECLARE node is selected, it has the side effect of also recording the variable. This is a short term solution that should be fixed in time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46659 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 04:07:54 +00:00
Evan Cheng
b8033e821d Frame index can be negative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46655 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 00:17:00 +00:00
Evan Cheng
1b08bbca55 Remove the nasty LABEL hack with a much less evil one. Now llvm.dbg.func.start implies a stoppoint is set. SelectionDAGISel records a new source line but does not create a ISD::LABEL node for this special stoppoint. Asm printer will magically print this label. This ensures nothing is emitted before. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46635 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-01 09:10:45 +00:00
Evan Cheng
334dc1f58d Revert 46556 and 46585. Dan please fix the PseudoSourceValue problem and re-commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46623 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 21:00:00 +00:00
Evan Cheng
bb81d97feb Add an extra operand to LABEL nodes which distinguishes between debug, EH, or misc labels. This fixes the EH breakage. However I am not convinced this is *the* solution. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46609 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 09:59:15 +00:00
Evan Cheng
c67aa7cbd5 Add x86 specific getFrameIndexOffset(). This fixes local variable debugging info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46598 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 04:06:00 +00:00
Dan Gohman
bbfb9c57c7 Avoid unnecessarily casting away const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46590 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 01:01:48 +00:00
Dan Gohman
1a0248690a Rename ISD::FLT_ROUNDS to ISD::FLT_ROUNDS_ to avoid conflicting 
with the real FLT_ROUNDS (defined in <float.h>).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46587 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 00:41:03 +00:00
Dan Gohman
c6c391dadd Create a new class, MemOperand, for describing memory references 
in the backend. Introduce a new SDNode type, MemOperandSDNode, for
holding a MemOperand in the SelectionDAG IR, and add a MemOperand
list to MachineInstr, and code to manage them. Remove the offset
field from SrcValueSDNode; uses of SrcValueSDNode that were using
it are all all using MemOperandSDNode now.

Also, begin updating some getLoad and getStore calls to use the
PseudoSourceValue objects.

Most of this was written by Florian Brander, some
reorganization and updating to TOT by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46585 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 00:25:39 +00:00
Evan Cheng
965d1b4bba Treat the label for the first @llvm.dbg.stoppoint the same way as the dbg_func_start label. Make sure nothing else is inserted before them. 
Note this solution might be somewhat fragile since ISD::LABEL may be used for other
purposes. If that ends up to be an issue, we may need to introduce a different node
for debug labels.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46571 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 20:08:35 +00:00
Evan Cheng
ff9b373e8f Even though InsertAtEndOfBasicBlock is an ugly hack it still deserves a proper name. Rename it to EmitInstrWithCustomInserter since it does not necessarily insert 
instruction at the end.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46562 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 18:18:23 +00:00
Evan Cheng
d2c860cef1 Skip over the label which marks the beginning of the function before inserting prologue code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46546 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 03:57:33 +00:00
Evan Cheng
0d9e976ad2 Work in progress. This patch *fixes* x86-64 calls which are modelled as StructRet but really should be return in registers, e.g. _Complex long double, some 128-bit aggregates. This is a short term solution that is necessary only because llvm, for now, cannot model i128 nor call's with multiple results. 
Status: This only works for direct calls, and only the caller side is done. Disabled for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46527 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 19:34:22 +00:00
Dale Johannesen
ba2a0b960e Handle 'X' constraint in asm's better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46485 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 02:21:21 +00:00
Chris Lattner
f6b935d8e6 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46413 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-27 07:31:41 +00:00
Chris Lattner
71d07a0dac Use fldz and fld1 for long double constants instead of a constant pool load. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46411 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-27 06:19:31 +00:00
Chris Lattner
4d53049c92 Add some notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46405 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-26 20:12:07 +00:00
Chris Lattner
ba96fbc164 Remove some code for inferring alignment info from the x86 backend 
now that the dag combiner does it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46404 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-26 20:07:42 +00:00
Bill Wendling
824a721560 If there's no instructions being emitted on X86 for a function, emit a 
nop. Emit the nop directly for PPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46398 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-26 09:03:52 +00:00
Chris Lattner
6cf73267c6 optimize fxor like for 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46345 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-25 06:14:17 +00:00
Chris Lattner
af723b9ae4 Add target-specific dag combines for FAND(x,0) and FOR(x,0). This allows 
us to compile:

double test(double X) {
  return copysign(0.0, X);
}

into:

_test:
	andpd	LCPI1_0(%rip), %xmm0
	ret

instead of:
_test:
	pxor	%xmm1, %xmm1
	andpd	LCPI1_0(%rip), %xmm1
	movapd	%xmm0, %xmm2
	andpd	LCPI1_1(%rip), %xmm2
	movapd	%xmm1, %xmm0
	orpd	%xmm2, %xmm0
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46344 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-25 05:46:26 +00:00
Anton Korobeynikov
8eea339298 Provide correct DWARF register numbering for debug information emission on x86-32/Darwin. 
This should fix bunch of issues.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46337 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-25 00:34:13 +00:00