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Author SHA1 Message Date
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
Evan Cheng
5144ed1e35 Temporarily backing out r47337. It breaks a number of CBE tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47385 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 18:32:05 +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
d28b57569d Fix code style 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47370 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:24:05 +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
Andrew Lenharth
86532db5d7 fix some byval problems in the cbe. Closes PR2065 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47337 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 19:47:54 +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
7c4e9a44a4 upgrade some tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47280 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 18:46:39 +00:00
Nate Begeman
e9fe65c973 Add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47279 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 18:39:23 +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
3b407444c9 Cosmetics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47168 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 18:40:53 +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
Dale Johannesen
db01c8ba26 Rewrite tblgen handling of subtarget features so 
it follows the order of the enum, not alphabetical.
The motivation is to make -mattr=+ssse3,+sse41
select SSE41 as it ought to.  Added "ignored"
enum values of 0 to PPC and SPU to avoid compiler
warnings.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47143 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 23:35:16 +00:00
Nate Begeman
ccef580583 Fix single precision FP constants on SPU. They are actually legal, 
which allows us to kill a target-specific node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47127 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 18:43:04 +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
Nate Begeman
0fec975a18 Move some useful operands up into the all-targets .td 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47115 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:25:46 +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
Chris Lattner
a1998d1cba Fix the PPC JIT regressions by encoding zeroreg as 0 for BLR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47067 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 17:24:14 +00:00
Chris Lattner
9f72d1a730 don't try to avoid inserting loads when lowering FORMAL_ARGUMENTS. 
DAGCombine is now quite good at zapifying them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47053 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 07:35:30 +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
Nate Begeman
ba8d51c1d7 Make register scavenging happy by not using a reg (CR0) that isn't defined 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47045 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 02:58:33 +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