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Author SHA1 Message Date
Dan Gohman
f595141525 Revert 107840 107839 107813 107804 107800 107797 107791. 
Debug info intrinsics win for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107850 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-08 01:00:56 +00:00
Evan Cheng
bcc8017c73 Move getExtLoad() and (some) getLoad() DebugLoc argument after EVT argument for consistency sake. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107820 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-07 22:15:37 +00:00
Dan Gohman
f423a69839 Add X86FastISel support for return statements. This entails refactoring 
a bunch of stuff, to allow the target-independent calling convention
logic to be employed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107800 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-07 18:32:53 +00:00
Dan Gohman
a4160c3434 Simplify FastISel's constructor by giving it a FunctionLoweringInfo 
instance, rather than pointers to all of FunctionLoweringInfo's
members.

This eliminates an NDEBUG ABI sensitivity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107789 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-07 16:29:44 +00:00
Dan Gohman
c9403659a9 Split the SDValue out of OutputArg so that SelectionDAG-independent 
code can do calling-convention queries. This obviates OutputArgReg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107786 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-07 15:54:55 +00:00
Dale Johannesen
e2b448c208 Accept RIP-relative symbols with 'i' constraint, and 
print the (%rip) only if the 'a' modifier is present.
PR 7528.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107727 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 23:27:00 +00:00
Dan Gohman
c9af33c685 CanLowerReturn doesn't need a SelectionDAG; it just needs an LLVMContext. 
SelectBasicBlock doesn't needs its BasicBlock argument.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107712 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 22:19:37 +00:00
Devang Patel
0d881dabc1 Propagate debug loc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107710 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 22:08:15 +00:00
Dan Gohman
14152b480d Reapply r107655 with fixes; insert the pseudo instruction into 
the block before calling the expansion hook. And don't
put EFLAGS in a mbb's live-in list twice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107691 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 20:24:04 +00:00
Dan Gohman
258c58cc62 Revert r107655. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107668 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 15:49:48 +00:00
Dan Gohman
b81c771c0d Fix a bunch of custom-inserter functions to handle the case where 
the pseudo instruction is not at the end of the block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107655 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 15:18:19 +00:00
Eric Christopher
f7a0c7bf8b Fix up -fstack-protector on linux to use the segment 
registers.  Split out testcases per architecture and os
now.

Patch from Nelson Elhage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107640 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 05:18:56 +00:00
Eric Christopher
62f35a2c13 Have the X86 backend use Triple instead of a string and some enums. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107625 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-05 19:26:33 +00:00
Chris Lattner
32b4b5aea6 more tidying. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-05 05:53:14 +00:00
Chris Lattner
f172ecd964 Just rip v2f32 support completely out of the X86 backend. In 
the example in the testcase, we now generate:

_test1:                                 ## @test1
	movss	4(%esp), %xmm0
	addss	8(%esp), %xmm0
	movl	12(%esp), %eax
	movss	%xmm0, (%eax)
	ret

instead of:

_test1:                                                     ## @test1
	subl	$20, %esp
	movl	24(%esp), %eax
	movq	%mm0, (%esp)
	movq	%mm0, 8(%esp)
	movss	(%esp), %xmm0
	addss	12(%esp), %xmm0
	movss	%xmm0, (%eax)
	addl	$20, %esp
	ret

v2f32 support did not work reliably because most of the X86
backend didn't know it was legal.  It was apparently only added
to support returning source-level v2f32 values in MMX registers
in x86-32 mode.  If ABI compatibility is important on this
GCC-extended-vector type for some reason, then the frontend
should generate IR that returns v2i32 instead of v2f32.  However,
we generally don't try very hard to be abi compatible on gcc
extended vectors. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107601 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-04 23:07:25 +00:00
Chris Lattner
e35d9842f7 fix PR7518 - terrible codegen of <2 x float>, by only marking 
v2f32 as legal in 32-bit mode.  It is just as terrible there,
but I just care about x86-64 and noone claims it is valuable
in 64-bit mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107600 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-04 22:57:10 +00:00
Evan Cheng
ed2ae136d2 Remove isSS argument from CreateFixedObject. Fixed objects cannot be spill slots so it's always false. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107550 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-03 00:40:23 +00:00
Gabor Greif
e1c2b9cc3d use ArgOperand API 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107280 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-30 13:03:37 +00:00
Duncan Sands
78337b4d4d Remove pointless and unused variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107130 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-29 12:48:49 +00:00
Bill Wendling
c25ccf85e5 Reduce indentation via early exit. NFC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107067 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-28 21:08:32 +00:00
Gabor Greif
1cfe44a460 use ArgOperand API 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106944 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-26 11:51:52 +00:00
Dale Johannesen
1784d160e4 The hasMemory argument is irrelevant to how the argument 
for an "i" constraint should get lowered; PR 6309.  While
this argument was passed around a lot, this is the only
place it was used, so it goes away from a lot of other
places.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106893 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-25 21:55:36 +00:00
Bill Wendling
730c07e50d - Reapply r106066 now that the bzip2 build regression has been fixed. 
- 2010-06-25-CoalescerSubRegDefDead.ll is the testcase for r106878.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106880 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-25 20:48:10 +00:00
Dale Johannesen
e5ff9ef195 Disallow matching "i" constraint to symbol addresses when 
address requires a register or secondary load to compute
(most PIC modes).  This improves "g" constraint handling.  8015842.

The test from 2007 is attempting to test the fix for PR1761,
but since -relocation-model=static doesn't work on Darwin
x86-64, it was not testing what it was supposed to be testing
and was passing erroneously.  Fixed to use Linux x86-64.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106779 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-24 20:14:51 +00:00
Dan Gohman
4e39e9da0f Reapply r106634, now that the bug it exposed is fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106746 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-24 14:30:44 +00:00
Dan Gohman
6b13cbca61 Fix a bug in the code which determines when it's safe to use the 
bt instruction, which was exposed by r106263.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-24 02:07:59 +00:00
Daniel Dunbar
cbe762b5d1 Revert r106263, "Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass,"... it was causing both 'file' (with clang) and 176.gcc (with llvm-gcc) to be miscompiled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106634 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-23 17:09:26 +00:00
Jim Grosbach
f1ab49e83a The generic DAG combiner can now fold atomic fences when needed, so switch 
to using that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106633 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-23 16:25:07 +00:00
Daniel Dunbar
d24c9d5f91 Revert r106066, "Create a more targeted fix for not sinking instructions into a range where it"... it causes bzip2 to be miscompiled by Clang. 
Conflicts:

	lib/CodeGen/MachineSink.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106614 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-23 00:48:25 +00:00
Jim Grosbach
dd11ee2273 fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106574 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 20:52:02 +00:00
Nick Lewycky
2a3ee5e8e9 Fix warning in no-asserts build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106405 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-20 20:27:42 +00:00
Dan Gohman
027657db7c Change UpdateNodeOperands' operand and return value from SDValue to 
SDNode *, since it doesn't care about the ResNo value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106282 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 15:30:29 +00:00
Dan Gohman
5ff12fc41a Delete unused variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106280 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:32:32 +00:00
Dan Gohman
e368b460a2 Eliminate unnecessary uses of getZExtValue(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:22:04 +00:00
Dan Gohman
7720cb3823 isValueValidForType can be a static member function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106278 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:01:07 +00:00
Dan Gohman
8a7f7426ee Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass, 
which is faster, simpler, and less surprising.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106263 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 01:05:21 +00:00
Bill Wendling
d361a77f14 Create a more targeted fix for not sinking instructions into a range where it 
will conflict with another live range. The place which creates this scenerio is
the code in X86 that lowers a select instruction by splitting the MBBs. This
eliminates the need to check from the bottom up in an MBB for live pregs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106066 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 23:46:31 +00:00
Eric Christopher
6102549737 For 32-bit non-pic tlv mach-o addressing we don't need a pic base or 
a relative address.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106064 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 23:08:42 +00:00
Eric Christopher
544153653b Ensure that mov and not lea are used to stick the address into 
the register.  While we're at it, make sure it's in the right one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105645 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 22:04:25 +00:00
Dale Johannesen
88004c25c7 Fix some liveout handling related to tail calls, see comments. 
I don't think this ever resulted in problems on x86, but it
would on ARM.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-05 00:30:45 +00:00
Eric Christopher
30ef0e5658 Add first pass at darwin tls compiler support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105381 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 04:07:48 +00:00
Eli Friedman
962f549d20 Fix comment so it doesn't include comments which are irrelevant to the x86 
backend.  Add a FIXME noting what can be fixed here.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105342 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-02 19:35:46 +00:00
Dan Gohman
71c62a2977 Use comments to document non-obvious code rather than 
mailing list archives.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105341 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-02 19:13:40 +00:00
Eli Friedman
a993f0a45f Don't try to custom-lower 64-bit add-with-overflow and friends on x86-32; the 
x86 backend currently doesn't know how to handle them.

This doesn't really fix anything because LegalizeTypes doesn't know how to
handle them either.  We do get a better error message, though.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105305 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-02 00:27:18 +00:00
Evan Cheng
9c044674e6 Fix PR7193: if sibling call address can take a register, make sure there are enough registers available by counting inreg arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105092 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-29 01:35:22 +00:00
Dale Johannesen
2f05cc06a2 Fix comment typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105059 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-28 23:24:28 +00:00
Dale Johannesen
54feef2950 Mark some math lib intrinsic nodes Legal on SSE4.1. 
No functional effect as these nodes are not generated yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104879 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 20:12:41 +00:00
Dan Gohman
4d3d6e1a0c FastISel doesn't yet handle callee-pop functions. 
To support this, move IsCalleePop from X86ISelLowering to X86Subtarget.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104866 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 18:43:40 +00:00
Zhongxing Xu
c2798a18a7 SRetReturnReg was set in LowerFormalArguments(). So only assert it here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104691 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 08:10:02 +00:00
Evan Cheng
2457f2c661 Implement @llvm.returnaddress. rdar://8015977. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104421 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-22 01:47:14 +00:00