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4072 Commits

Author SHA1 Message Date
Dan Gohman
a2f300f26d Use .size and .type on ELF systems; this helps tools that map 
addresses to symbols.

llvm-svn: 63962
 2009-02-06 21:15:52 +00:00
Evan Cheng
e00df1d39c Move getPointerRegClass from TargetInstrInfo to TargetRegisterInfo. 
llvm-svn: 63938
 2009-02-06 17:43:24 +00:00
Evan Cheng
381b2df5ff Add TargetInstrInfo::isSafeToMoveRegisterClassDefs. It returns true if it's safe to move an instruction which defines a value in the register class. Replace pre-splitting specific IgnoreRegisterClassBarriers with this new hook. 
llvm-svn: 63936
 2009-02-06 17:17:30 +00:00
Dale Johannesen
e95c76b65e Get rid of one more non-DebugLoc getNode and 
its corresponding getTargetNode.  Lots of
caller changes.

llvm-svn: 63904
 2009-02-06 01:31:28 +00:00
Evan Cheng
87def37f67 A few more isAsCheapAsAMove. 
llvm-svn: 63852
 2009-02-05 08:42:55 +00:00
Dale Johannesen
15a801f11d Remove non-DebugLoc versions of getLoad and getStore. 
Adjust the many callers of those versions.

llvm-svn: 63767
 2009-02-04 20:06:27 +00:00
Chris Lattner
feb6b56242 Bill implemented this. 
llvm-svn: 63752
 2009-02-04 19:09:07 +00:00
Chris Lattner
eae4653469 add a note, this is why we're faster at SciMark-MonteCarlo with 
SSE disabled.

llvm-svn: 63751
 2009-02-04 19:08:01 +00:00
Dan Gohman
1cd89d625c Minor code cleanups; no functionality change. 
llvm-svn: 63740
 2009-02-04 17:28:58 +00:00
Mon P Wang
430525dc4f Fixes a case where we generate an incorrect mask for pshfhw in the presence 
of undefs and incorrectly determining if we have punpckldq.

llvm-svn: 63702
 2009-02-04 01:16:59 +00:00
Dale Johannesen
fa244d6e2d Patch up omissions in DebugLoc propagation. 
llvm-svn: 63693
 2009-02-04 00:33:20 +00:00
Dale Johannesen
f9b2746030 Need this file too. 
llvm-svn: 63674
 2009-02-03 22:26:34 +00:00
Dale Johannesen
b7f2857776 Add some DL propagation to places that didn't 
have it yet.  More coming.

llvm-svn: 63673
 2009-02-03 22:26:09 +00:00
Dale Johannesen
45009f127b DebugLoc propgation 
llvm-svn: 63664
 2009-02-03 21:48:12 +00:00
Dale Johannesen
358418bb3d DebugLoc propagation. done with file. 
llvm-svn: 63656
 2009-02-03 20:21:25 +00:00
Dale Johannesen
6c8c315519 DebugLoc propagation. 2/3 through file. 
llvm-svn: 63650
 2009-02-03 19:33:06 +00:00
Dan Gohman
7d19e6cd6d Tevert part of the x86 subtarget logic changes: when -march=x86-64 
is given, override the subtarget settings and enable 64-bit support.
This restores the earlier behavior, and fixes regressions on
Non-64-bit-capable x86-32 hosts.

This isn't necessarily the best approach, but the most obvious
alternative is to require -mcpu=x86-64 or -mattr=+64bit to be used
with -march=x86-64 when the host doesn't have 64-bit support. This
makes things little more consistent, but it's less convenient, and
it has the practical drawback of requiring lots of test changes, so
I opted for the above approach for now.

llvm-svn: 63642
 2009-02-03 18:53:21 +00:00
Bill Wendling
5b177df8e9 Create DebugLoc information in FastISel. Several temporary methods were 
created. Specifically, those BuildMIs which use
"DebugLoc::getUnknownLoc()". I'll remove them soon.

llvm-svn: 63584
 2009-02-03 00:55:04 +00:00
Dan Gohman
2170150035 Change Feature64Bit to not imply FeatureSSE2. All x86-64 hardware has 
SSE2, however it's possible to disable SSE2, and the subtarget support
code thinks that if 64-bit implies SSE2 and SSE2 is disabled then
64-bit should also be disabled. Instead, just mark all the 64-bit
subtargets as explicitly supporting SSE2.

Also, move the code that makes -march=x86-64 enable 64-bit support by
default to only apply when there is no explicit subtarget. If you
need to specify a subtarget and you want 64-bit code, you'll need to
select a subtarget that supports 64-bit code.

llvm-svn: 63575
 2009-02-03 00:04:43 +00:00
Torok Edwin
2bc41a36ba Only force SSE level if it is not correct. 
Add an assert to check HasX86_64 status.

llvm-svn: 63552
 2009-02-02 21:57:34 +00:00
Torok Edwin
c1017185a5 remove #if 0 code on Bill's request. 
llvm-svn: 63542
 2009-02-02 20:23:02 +00:00
Evan Cheng
16c8f917fb ADD / SUB / SMUL / UMUL with overflow second result top bits must be zero. 
llvm-svn: 63509
 2009-02-02 09:15:04 +00:00
Evan Cheng
e8dfbb5884 Add comment. 
llvm-svn: 63506
 2009-02-02 08:19:07 +00:00
Evan Cheng
483bbd1643 Teach LowerBRCOND to recognize (xor (setcc x), 1). The xor inverts the condition. It's normally transformed by the dag combiner, unless the condition is set by a arithmetic op with overflow. 
llvm-svn: 63505
 2009-02-02 08:07:36 +00:00
Torok Edwin
b4c9a6097f Implement -mno-sse: if SSE is disabled on x86-64, don't store XMM on stack for 
var-args, and don't allow FP return values

llvm-svn: 63495
 2009-02-01 18:15:56 +00:00
Duncan Sands
cac6cf74f9 Fix PR3453 and probably a bunch of other potential 
crashes or wrong code with codegen of large integers:
eliminate the legacy getIntegerVTBitMask and
getIntegerVTSignBit methods, which returned their
value as a uint64_t, so couldn't handle huge types.

llvm-svn: 63494
 2009-02-01 18:06:53 +00:00
Dale Johannesen
39738b1ff8 Make LowerCallTo and LowerArguments take a DebugLoc 
argument.  Adjust all callers and overloaded versions.

llvm-svn: 63444
 2009-01-30 23:10:59 +00:00
Bill Wendling
67737da99b Get rid of the non-DebugLoc-ified getNOT() method. 
llvm-svn: 63442
 2009-01-30 23:03:19 +00:00
Mon P Wang
5db99442e4 When PerformBuildVectorCombine, avoid creating a X86ISD::VZEXT_LOAD of 
an illegal type.

llvm-svn: 63380
 2009-01-30 07:07:40 +00:00
Dan Gohman
9d120d6d8f Make x86's BT instruction matching more thorough, and add some 
dagcombines that help it match in several more cases. Add
several more cases to test/CodeGen/X86/bt.ll. This doesn't
yet include matching for BT with an immediate operand, it
just covers more register+register cases.

llvm-svn: 63266
 2009-01-29 01:59:02 +00:00
Mon P Wang
8abb07a527 Fixed lowering of v816 shuffles. 
llvm-svn: 63252
 2009-01-28 23:11:14 +00:00
Duncan Sands
aee16d4916 Rename getAnalysisToUpdate to getAnalysisIfAvailable. 
llvm-svn: 63198
 2009-01-28 13:14:17 +00:00
Evan Cheng
2a965124b7 The memory alignment requirement on some of the mov{h|l}p{d|s} patterns are 16-byte. That is overly strict. These instructions read / write f64 memory locations without alignment requirement. 
llvm-svn: 63195
 2009-01-28 08:35:02 +00:00
Mon P Wang
e1c886f775 Add shuffle splat pattern for x86 sse shifts. 
llvm-svn: 63193
 2009-01-28 08:12:05 +00:00
Dan Gohman
c017343459 Reformat the allocation-order arrays to a more conventional style. 
llvm-svn: 63121
 2009-01-27 19:25:38 +00:00
Dan Gohman
7d80f8688e Simplify findNonImmUse; return the result using the return value 
instead of via a by-reference argument. No functionality change.

llvm-svn: 63118
 2009-01-27 19:04:30 +00:00
Evan Cheng
a05436f739 Implement multiple with overflow by 2 with an add instruction. 
llvm-svn: 63090
 2009-01-27 03:30:42 +00:00
Dan Gohman
2e0343e321 Eliminate unnecessary operands-list traversals. 
llvm-svn: 63088
 2009-01-27 02:37:43 +00:00
Dan Gohman
4ad174b236 Fix the Red Zone calculation for functions with frame pointers. 
Don't use the Red Zone when dynamic stack realignment is needed.
This could be implemented, but most x86-64 ABIs don't require
dynamic stack realignment so it isn't urgent.

llvm-svn: 63074
 2009-01-27 00:40:06 +00:00
Dan Gohman
3a51d8e847 Implement Red Zone utilization on x86-64. This is currently 
disabled by default; I'll enable it when I hook it up with
the llvm-gcc flag which controls it.

llvm-svn: 63056
 2009-01-26 22:22:31 +00:00
Evan Cheng
ec03e0cd3b Enhance logic in X86DAGToDAGISel::PreprocessForRMW which move load inside callseq_start to allow it to be folded into a call. It was not considering the cases where a token factor is between the load and the callseq_start. 
llvm-svn: 63022
 2009-01-26 18:43:34 +00:00
Dan Gohman
4abaebae0c Take the next steps in making SDUse more consistent with LLVM Use, and 
tidy up SDUse and related code.
 - Replace the operator= member functions with a set method, like
   LLVM Use has, and variants setInitial and setNode, which take
   care up updating use lists, like LLVM Use's does. This simplifies
   code that calls these functions.
 - getSDValue() is renamed to get(), as in LLVM Use, though most
   places can either use the implicit conversion to SDValue or the
   convenience functions instead.
 - Fix some more node vs. value terminology issues.

Also, eliminate the one remaining use of SDOperandPtr, and
SDOperandPtr itself.

llvm-svn: 62995
 2009-01-26 04:35:06 +00:00
Nate Begeman
d2f708eca5 De-identifying per sabre review 
llvm-svn: 62988
 2009-01-26 03:15:31 +00:00
Nate Begeman
92efc4f0ce Map address space 256 to gs; similar mappings could be supported for the 
other x86 segments.  address space 0 is stack/default, 1-255 are reserved for
client use.

llvm-svn: 62980
 2009-01-26 01:24:32 +00:00
Nate Begeman
81d70f3f54 Support pattern matching various x86 sse shifts. 
llvm-svn: 62979
 2009-01-26 00:52:55 +00:00
Torok Edwin
6f715ebe85 should have removed the + when manually applying a patch! 
llvm-svn: 62973
 2009-01-25 20:29:34 +00:00
Torok Edwin
3f54410405 revert this patch for now, because Codegen does still want to generate SSE code, 
for example in the case of va-args. XFAIL associated tests.

llvm-svn: 62972
 2009-01-25 20:21:24 +00:00
Torok Edwin
49b1d3e3cc If user explicitly asks not to use SSE, don't force it. This fixes LLVM part of PR3402. 
llvm-svn: 62967
 2009-01-25 17:58:56 +00:00
Nate Begeman
48f3fe9199 Fix an indent and a typo. 
llvm-svn: 62940
 2009-01-24 22:12:48 +00:00
Chris Lattner
97b6f6a674 hopefully address PR3379 by making the P modifier work in x86 inline asm. 
llvm-svn: 62887
 2009-01-23 22:33:40 +00:00