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d0c66476e1
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9472 Commits

Author SHA1 Message Date
Dan Gohman
d0c66476e1 Move the code for initialing the entry block livein set out of 
SelectionDAGISel.

llvm-svn: 101258
 2010-04-14 17:05:00 +00:00
Dan Gohman
859cb3eea9 Reorgnaize this code to be more tidy and readable. 
llvm-svn: 101256
 2010-04-14 17:02:07 +00:00
Dan Gohman
a1656764cc Trim #includes. 
llvm-svn: 101255
 2010-04-14 16:54:39 +00:00
Dan Gohman
2c09c272ff Move the code for emitting livein copies out of SelectionDAGISel. 
llvm-svn: 101254
 2010-04-14 16:51:49 +00:00
Dan Gohman
6471bcb1fd Sink landing-pad marking code out of 
SelectionDAGISel::runOnMachineFunction into FunctionLowering.

llvm-svn: 101252
 2010-04-14 16:32:56 +00:00
Dan Gohman
625913100a It's not necessary to recompute EB here. 
llvm-svn: 101251
 2010-04-14 16:30:40 +00:00
Dan Gohman
1158c51fe0 Generalize this code to handle Instructions in addition to ConstantExprs. 
llvm-svn: 101210
 2010-04-14 02:33:23 +00:00
Dan Gohman
f3d8d6ef18 Reorder the methods of this class to be a little more organized. 
llvm-svn: 101206
 2010-04-14 02:09:45 +00:00
Devang Patel
4cc398507f Clear MachineInstr->MCSymbol maps at the end of a function. 
llvm-svn: 101202
 2010-04-14 01:18:28 +00:00
Evan Cheng
aadcfa8ad7 Fast path implicit_def check. 
llvm-svn: 101183
 2010-04-13 22:13:34 +00:00
Devang Patel
7c2bc9dbfe Do not include types without any definition in pubtypes list. 
llvm-svn: 101171
 2010-04-13 20:35:04 +00:00
Evan Cheng
6e5407402e Avoid variable shadowing. 
llvm-svn: 101170
 2010-04-13 20:25:29 +00:00
Evan Cheng
bc94b6f1fd Expand postra machine licm's capability a little more. If an instruction's register operands are all loop invariants, then it's safe to hoist it. 
llvm-svn: 101167
 2010-04-13 20:21:05 +00:00
Jakob Stoklund Olesen
a75eedea38 Teach MachineSinking to handle easy critical edges. 
Sometimes it is desirable to sink instructions along a critical edge:

x = ...
if (a && b) ...
else use(x);

The 'a && b' condition creates a critical edge to the else block, but we still
want to sink the computation of x into the block. The else block is dominated by
the parent block, so we are not pushing instructions into new code paths.

llvm-svn: 101165
 2010-04-13 19:06:14 +00:00
Evan Cheng
d83c1b5a0e Teach postra machine licm to hoist more obvious invariants, e.g. instructions with no source operands. 
llvm-svn: 101154
 2010-04-13 18:16:00 +00:00
Dan Gohman
a400b6eca8 Add a few comments. 
llvm-svn: 101148
 2010-04-13 17:07:06 +00:00
Dan Gohman
2bca857d78 Eliminate MachineBasicBlock::const_livein_iterator and make 
MachineBasicBlock::livein_iterator a const_iterator, because
clients shouldn't ever be using the iterator interface to
mutate the livein set.

llvm-svn: 101147
 2010-04-13 16:57:55 +00:00
Dan Gohman
80b52785a4 Rename MachineFrameInfo variables to MFI, for consistency with 
the rest of CodeGen.

llvm-svn: 101146
 2010-04-13 16:56:45 +00:00
Dan Gohman
22f72726f3 Move MachineRegisterInfo's isLiveIn and isLiveOut out of line. 
llvm-svn: 101145
 2010-04-13 16:55:37 +00:00
Dan Gohman
9652ec03e5 Delete an unused member variable. 
llvm-svn: 101143
 2010-04-13 16:51:39 +00:00
Chris Lattner
dabcd9738c add llvm codegen support for -ffunction-sections and -fdata-sections, 
patch by Sylvere Teissier!

llvm-svn: 101106
 2010-04-13 00:36:43 +00:00
Dan Gohman
3646979c2c Remove a #include. 
llvm-svn: 101043
 2010-04-12 16:26:03 +00:00
Benjamin Kramer
9904b07b61 Plug trivial leak. 
llvm-svn: 101034
 2010-04-12 11:38:35 +00:00
Evan Cheng
90788354c9 Enable post regalloc machine licm by default. 
llvm-svn: 101023
 2010-04-12 06:25:28 +00:00
Dan Gohman
5c9f7ed9aa Remove unnecessary parens. 
llvm-svn: 101010
 2010-04-12 02:24:01 +00:00
Bob Wilson
c340ffd866 Tidy whitespace. 
llvm-svn: 100904
 2010-04-09 21:38:26 +00:00
Devang Patel
55172d3571 Clear InsnsBeginScopeSet and InsnsEndScopeSet at the end of function. 
llvm-svn: 100867
 2010-04-09 16:04:20 +00:00
Dan Gohman
f9cf2772f6 Delete this obsolete comment. 
llvm-svn: 100858
 2010-04-09 14:12:01 +00:00
Chandler Carruth
362be7d46d Add a missing dependency to this library when building with CMake. 
llvm-svn: 100852
 2010-04-09 05:55:25 +00:00
Bob Wilson
1fa38ca6fd Use getNumImplicitDefs() and getNumImplicitUses(). 
llvm-svn: 100850
 2010-04-09 04:46:43 +00:00
Bob Wilson
ed50c79a3a Fix up some comments. 
llvm-svn: 100849
 2010-04-09 04:34:03 +00:00
Dan Gohman
127f5c53e1 Add variants of ult, ule, etc. which take a uint64_t RHS, for convenience. 
llvm-svn: 100824
 2010-04-08 23:03:40 +00:00
Chris Lattner
e154403f78 delete a forwarding function. 
llvm-svn: 100815
 2010-04-08 21:34:17 +00:00
Chris Lattner
1cf4bded13 move elf section uniquing to MCContext. Along the way 
merge XCore's section into MCSectionELF

llvm-svn: 100812
 2010-04-08 21:26:26 +00:00
Chris Lattner
0225dbbfee remove the TargetLoweringObjectFileMachO::getMachoSection 
api and update clients to use MCContext instead.

llvm-svn: 100808
 2010-04-08 20:40:11 +00:00
Chris Lattner
60ff59e5c1 move macho section uniquing from MCParser and TLOF to MCContext where 
the compiler and asmparser now unique to the same sections.  This fixes
rdar://7835021.

llvm-svn: 100807
 2010-04-08 20:30:37 +00:00
Evan Cheng
619f1b8a94 Coalescer should not delete copy instructions whose defs are partially dead. e.g. 
%RDI<def,dead> = MOV64rr %RAX<kill>, %EDI<imp-def>

llvm-svn: 100804
 2010-04-08 20:02:37 +00:00
Ted Kremenek
141d32b7e9 Fix -Wsign-compare warning (issued by clang++). 
llvm-svn: 100799
 2010-04-08 18:49:30 +00:00
Devang Patel
17b5b1dd88 Rename a function. 
llvm-svn: 100797
 2010-04-08 18:43:56 +00:00
Chris Lattner
f6e9c0c4bd implicit defs get added to the end of machine instrs sometimes. Scan the whole instruction for the metadata operand instead of assuming it will be at the end of the instruction. 
llvm-svn: 100792
 2010-04-08 18:20:52 +00:00
Devang Patel
89756fdbfc One instruction may start (or end) multiple lexical scopes. 
There is no need to remember labels identifying regions marked by such instructions in each scope.

llvm-svn: 100781
 2010-04-08 16:50:29 +00:00
Devang Patel
3cc4a24666 Remove dead code. 
llvm-svn: 100771
 2010-04-08 15:48:02 +00:00
Devang Patel
b9f9a00513 Delete out of date comment. 
llvm-svn: 100769
 2010-04-08 15:41:13 +00:00
Devang Patel
9ada7b28a2 Refactor. 
llvm-svn: 100768
 2010-04-08 15:37:09 +00:00
Benjamin Kramer
0fb23008bb Use twines to simplify calls to report_fatal_error. For code size and readability. 
llvm-svn: 100756
 2010-04-08 10:44:28 +00:00
Evan Cheng
3fa0b6fb03 Avoid using f64 to lower memcpy from constant string. It's cheaper to use i32 store of immediates. 
llvm-svn: 100751
 2010-04-08 07:37:57 +00:00
Evan Cheng
2f7cee1730 Make post regalloc machine licm functional. It now passes all of MultiSource. 
llvm-svn: 100742
 2010-04-08 01:03:47 +00:00
Chris Lattner
579e7eb423 convert a report_fatal_error that I was able to trigger into a nice error 
so the user at least knows what inline asm is a problem.  For example:

error: inline asm not supported yet: don't know how to handle tied indirect register inputs
pr8788-1.c:14:10: note: generated from here
    asm ("\n" : "+r" (stack->regs)
         ^

Instead of:
fatal error: error in backend: Don't know how to handle tied indirect register inputs yet!

llvm-svn: 100731
 2010-04-08 00:09:16 +00:00
Chris Lattner
f9fbc74e40 minor tidying. 
llvm-svn: 100725
 2010-04-07 23:50:38 +00:00
Chris Lattner
96ed85d7ab use assertions instead of unreachable for logic errors. 
llvm-svn: 100724
 2010-04-07 23:47:51 +00:00