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Author SHA1 Message Date
Owen Anderson
a3971dfbfe Add a first attempt at implementing stores for X86 fast isel using target hooks. 
Dan or Evan, please review.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55764 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 07:08:58 +00:00
Evan Cheng
373d50af1d Load from GV stub should be locally CSE'd. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55763 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 06:18:33 +00:00
Evan Cheng
90960280ee Fix an overly strict assertion. Source register of a copy may not be killed, it may be killed by an implicit super-register use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55762 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 05:43:55 +00:00
Evan Cheng
c2feb5c262 Remove code that pad number of bytes to pop for X86_FastCall CC. The code doesn't do the "aligning" for Cygwin, Mingw, and Windows. But aligning it on Darwin and Linux breaks gcc compatibility. That ruled out all the platforms we support! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55756 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 01:04:15 +00:00
Dale Johannesen
7794f2a3a7 Add intrinsics for log, log2, log10, exp, exp2. 
No functional change (and no FE change to generate them).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55753 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 00:47:13 +00:00
Dan Gohman
104e4ce162 Do trivial local CSE for constants and other non-Instruction values 
in FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55748 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:32:19 +00:00
Dan Gohman
2a7c671e2e Put RegsForValue in the llvm namespace to avoid warnings about 
classes in the llvm namespace having members with types from
anonymous namespaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55747 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:18:39 +00:00
Dan Gohman
3df24e667f Create HandlePHINodesInSuccessorBlocksFast, a version of 
HandlePHINodesInSuccessorBlocks that works FastISel-style. This
allows PHI nodes to be updated correctly while using FastISel.

This also involves some code reorganization; ValueMap and
MBBMap are now members of the FastISel class, so they needn't
be passed around explicitly anymore. Also, SelectInstructions
is changed to SelectInstruction, and only does one instruction
at a time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55746 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:12:08 +00:00
Devang Patel
7bbb4339f9 Update inline threshold for current function if the notes say, optimize for size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55745 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:06:09 +00:00
Owen Anderson
0c7f91cf84 Fix a bug that prevented PRE from applying in some cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55744 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:06:07 +00:00
Devang Patel
72ab076e67 Avoid extra comma. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55742 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 22:55:40 +00:00
Devang Patel
52e89dd4e2 Parse and print opt_size note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55740 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 22:10:21 +00:00
Andrew Lenharth
cf996d4b56 Initial version of a Partial Specialization IPO pass. It triggers a couple hundred times on 176.gcc. I don't know the performance impact yet, the heuristic is quite simple still. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55734 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 21:00:28 +00:00
Dale Johannesen
61e6093dc8 Do not emit a UsedDirective for things in the llvm.used 
list that have internal linkage; the linker doesn't need
or want this.  (These objects must still be preserved
at compile time, so just removing them from the llvm.used
list doesn't work.)  Should affect only Darwin.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55722 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 20:34:58 +00:00
Devang Patel
7946e7b8a4 Fix typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55720 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 20:25:40 +00:00
Devang Patel
3d566ddd05 Add missing decls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55719 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 20:24:05 +00:00
Devang Patel
79cca4f49f Add parentheses to make code more readable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55717 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 19:57:15 +00:00
Devang Patel
3fb68373c4 Fix comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55716 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 19:52:17 +00:00
Duncan Sands
faf600a9ed Testcase for commits 55700 and 55714. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55715 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 19:38:41 +00:00
Duncan Sands
34f2a0ca17 If a SCC has a node without a function, then the SCC 
analysis would bail out without removing function
records for other members of the SCC (which may exist
if those functions read or wrote global variables).
Since these are initialized to "readnone", this
resulted in incorrect alias analysis results.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55714 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 19:37:16 +00:00
Devang Patel
22ec199fa0 Add custom inliner that handles only functions that are marked as always_inline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55713 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:50:53 +00:00
Devang Patel
67243399dd Handle "always inline" note during inline cost analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55712 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:47:45 +00:00
Devang Patel
5e06010462 Check noinline note and ignore other notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55711 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:46:35 +00:00
Devang Patel
910c120a7c Handle "noinline" note inside the simple inliner. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55708 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:10:21 +00:00
Owen Anderson
d5d81a457b Oops, I accidentally broke the fallback case with my last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55704 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 17:51:57 +00:00
Owen Anderson
99aaf108cd Fix an issue where we were reusing materializations of constants in blocks not dominated by the materialization. This is 
the simple fix, materializing the constant before every use.  It might be better to either track domination of uses or
to materialize all constants and the beginning of the function and let remat sort when to do materialization at uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55703 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 17:37:03 +00:00
Devang Patel
6bd8aa8399 Update test to check call instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55702 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 17:05:49 +00:00
Dan Gohman
f0cbcd4880 Split the SelectionDAG-building code, including the FunctionLoweringInfo 
and SelectionDAGLowering classes, out of SelectionDAGISel.cpp and put
it in a separate file, SelectionDAGBuild.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55701 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 16:12:24 +00:00
Duncan Sands
b070beee77 Fix maxo bado thinko. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55700 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 16:10:55 +00:00
Dan Gohman
94b8d7ea63 Separate MachineInstr-emitting routines from actual scheduling 
routines and move them into a separate file, ScheduleDAGEmit.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55699 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 16:01:59 +00:00
Dan Gohman
3f62940561 Fix addRegisterDead and addRegisterKilled to be more thorough 
when searching for redundant subregister dead/kill bits.

Previously it was common to see instructions marked like this:
  "RET %EAX<imp-use,kill>, %AX<imp-use,kill>"

With this change, addRegisterKilled continues scanning after
finding the %EAX operand, so it proceeds to discover the
redundant %AX kill and eliminates it, producing this:
  "RET %EAX<imp-use,kill>"

This currently has no effect on the generated code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55698 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 15:56:16 +00:00
Duncan Sands
d0ac373660 Since onlyReadsMemory returns true if in fact 
doesNotAccessMemory, check doesNotAccessMemory
first, since otherwise functions may be
marked readonly rather than readnone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 15:31:24 +00:00
Duncan Sands
9a036b945c Cleanup GlobalsModRef a bit. When analysing the 
callgraph, when one member of a SCC calls another
then the analysis would drop to mod-ref because
there is (usually) no function info for the callee
yet; fix this.  Teach the analysis about function
attributes, in particular the readonly attribute
(which requires being careful about globals).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55696 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 12:55:42 +00:00
Duncan Sands
dced0a3f53 Testcase for PR1678. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55695 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 07:52:01 +00:00
Nick Lewycky
8373d38afd Try to fold each element of a vector. This is needed to maintain structural 
equivalence.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55694 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 06:48:55 +00:00
Evan Cheng
8b19e56051 Add X86 target hook to implement load (even from GlobalAddress). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55693 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 06:44:39 +00:00
Evan Cheng
f45261fb9b If TargetSelectInstruction returns true, move to next instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55692 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 06:43:41 +00:00
Evan Cheng
ea09f4f469 Make UpdateValueMap, createResultReg, etc. protected instead of private so they can used by target hooks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55691 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 06:43:10 +00:00
Nick Lewycky
23c04309fb Don't apply this transform to vectors. Fixes PR2756. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55690 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 06:24:21 +00:00
Nick Lewycky
83c05e5d30 Don't crash when trying to constant fold a vector with some elements that can't 
be folded. Instead, fail to fold the entire vector.

We could also return a vector with some elements folded and some not. If anyone
thinks that's a better approach, please speak up!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55689 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 05:54:33 +00:00
Ted Kremenek
b388eb82fb Fix capitalization in #include of FastISel.h. This unbreaks the build on case-sensitive filesystems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 02:54:11 +00:00
Evan Cheng
88e3041ca6 Unbreak fast isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55685 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 01:04:47 +00:00
Devang Patel
e925ccc553 Add additional check to ensure that iv is canonicalized. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55682 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 00:29:13 +00:00
Devang Patel
a9348dc7ac Check iteration count. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55680 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 00:10:56 +00:00
Evan Cheng
c3f44b0d63 Let tblgen only generate fastisel routines, not the class definition. This makes it easier for targets to define its own fastisel class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55679 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 00:03:49 +00:00
Devang Patel
c72139134c While removing PHI, use basicblock to identify incoming value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55678 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 00:02:42 +00:00
Devang Patel
cb7f483d8c s/FP_AlwaysInline/FN_NOTE_AlwaysInline/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55676 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-02 22:43:57 +00:00
Devang Patel
108f92e376 If all IV uses are extending integer IV then change the type of IV itself, if possible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55674 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-02 22:18:08 +00:00
Devang Patel
691e52445e respect inline=never and inline=always notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55673 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-02 22:16:13 +00:00
Evan Cheng
36fd941fc0 80 col violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55668 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-02 21:59:13 +00:00