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41 Commits

Author SHA1 Message Date
Chris Lattner
55461787cc Rip all of the global variable lowering logic out of TargetAsmInfo. Since 
it is highly specific to the object file that will be generated in the end,
this introduces a new TargetLoweringObjectFile interface that is implemented
for each of ELF/MachO/COFF/Alpha/PIC16 and XCore.

Though still is still a brutal and ugly refactoring, this is a major step
towards goodness.

This patch also:
1. fixes a bunch of dangling pointer problems in the PIC16 backend.
2. disables the TargetLowering copy ctor which PIC16 was accidentally using.
3. gets us closer to xcore having its own crazy target section flags and
   pic16 not having to shadow sections with its own objects.
4. fixes wierdness where ELF targets would set CStringSection but not
   CStringSection_.  Factor the code better.
5. fixes some bugs in string lowering on ELF targets.

llvm-svn: 77294
 2009-07-28 03:13:23 +00:00
Owen Anderson
cc287b28c9 Get rid of the Pass+Context magic. 
llvm-svn: 76702
 2009-07-22 00:24:57 +00:00
Eli Friedman
6e61f56a5c Oops, accidentally set a legal operation to expand. 
llvm-svn: 76165
 2009-07-17 07:34:23 +00:00
Eli Friedman
b946eb988f Expand misc operations from test/CodeGen/Generic. 
llvm-svn: 76163
 2009-07-17 07:28:06 +00:00
Torok Edwin
f955a6ef49 llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").

llvm-svn: 75640
 2009-07-14 16:55:14 +00:00
Torok Edwin
ae8a3ff177 assert(0) -> LLVM_UNREACHABLE. 
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379
 2009-07-11 20:10:48 +00:00
Owen Anderson
8970999512 Thread LLVMContext through MVT and related parts of SDISel. 
llvm-svn: 75153
 2009-07-09 17:57:24 +00:00
Torok Edwin
358888da3a Implement changes from Chris's feedback. 
Finish converting lib/Target.

llvm-svn: 75043
 2009-07-08 20:53:28 +00:00
Torok Edwin
980729667e Convert more abort() calls to llvm_report_error(). 
Also remove trailing semicolon.

llvm-svn: 75027
 2009-07-08 19:04:27 +00:00
Bill Wendling
fdd5badace Update comments to make it clear that the function alignment is the Log2 of the 
bytes and not bytes.

llvm-svn: 74624
 2009-07-01 18:50:55 +00:00
Bill Wendling
c0fb316bd3 Add an "alignment" field to the MachineFunction object. It makes more sense to 
have the alignment be calculated up front, and have the back-ends obey whatever
alignment is decided upon.

This allows for future work that would allow for precise no-op placement and the
like.

llvm-svn: 74564
 2009-06-30 22:38:32 +00:00
Anton Korobeynikov
85accafcba Mark rotl/rotr as expand. This generates pretty ugly code, but this is better than nothing. 
llvm-svn: 71976
 2009-05-17 10:16:28 +00:00
Anton Korobeynikov
8753e89b79 Typo 
llvm-svn: 71975
 2009-05-17 10:15:22 +00:00
Anton Korobeynikov
5461d8e07d Allow 8 bit select in custom inserter 
llvm-svn: 71239
 2009-05-08 18:51:21 +00:00
Anton Korobeynikov
1be416b310 Expand UREM / SREM into libcalls 
llvm-svn: 71236
 2009-05-08 18:50:41 +00:00
Anton Korobeynikov
8988fea464 Make handling of conditional stuff much more straightforward 
llvm-svn: 70767
 2009-05-03 13:19:09 +00:00
Anton Korobeynikov
e6c8cc6c51 Expand divisions into libcalls 
llvm-svn: 70765
 2009-05-03 13:18:33 +00:00
Anton Korobeynikov
54bbd77498 Custom lower SIGN_EXTEND 
llvm-svn: 70763
 2009-05-03 13:17:49 +00:00
Anton Korobeynikov
4b5232c990 Add 8bit shifts 
llvm-svn: 70759
 2009-05-03 13:16:37 +00:00
Anton Korobeynikov
d0e3939bdf Handle logical shift right (at least I hope so :) ) 
llvm-svn: 70758
 2009-05-03 13:16:17 +00:00
Anton Korobeynikov
baf9278166 Expand all sorts of indirect branches 
llvm-svn: 70755
 2009-05-03 13:15:40 +00:00
Anton Korobeynikov
cebc97d79c Properly handle ExternalSymbol's 
llvm-svn: 70752
 2009-05-03 13:14:46 +00:00
Anton Korobeynikov
9b84c6b633 Expand muls (all mulls!) to libcalls for now 
llvm-svn: 70751
 2009-05-03 13:14:25 +00:00
Anton Korobeynikov
1f80bde7ad Add left shift 
llvm-svn: 70747
 2009-05-03 13:13:17 +00:00
Anton Korobeynikov
f7943f8df6 Lower select with custom inserted and make condjumps generic 
llvm-svn: 70744
 2009-05-03 13:12:23 +00:00
Anton Korobeynikov
d55d6586ae Add first draft for conditions, conditional branches, etc 
llvm-svn: 70743
 2009-05-03 13:12:06 +00:00
Anton Korobeynikov
67b1a5c20b Small tweaking 
llvm-svn: 70741
 2009-05-03 13:11:35 +00:00
Anton Korobeynikov
cd06be1d13 Add lowering for global address nodes. Not pretty efficient though. 
llvm-svn: 70730
 2009-05-03 13:08:33 +00:00
Anton Korobeynikov
b396742d02 Add call frame setup instruction elimination and lowerid for bunch of call-related stuff. 
llvm-svn: 70728
 2009-05-03 13:07:54 +00:00
Anton Korobeynikov
4fa710b300 Add CALL lowering. 
llvm-svn: 70727
 2009-05-03 13:07:31 +00:00
Anton Korobeynikov
7b7a743ea8 Add normal and trunc stores 
llvm-svn: 70724
 2009-05-03 13:06:26 +00:00
Anton Korobeynikov
91359dcc3b Basic support for mem=>reg moves 
llvm-svn: 70723
 2009-05-03 13:06:03 +00:00
Anton Korobeynikov
d74b7ab46d Add pattern for OR 
llvm-svn: 70720
 2009-05-03 13:05:00 +00:00
Anton Korobeynikov
1921caf185 Cleanup 
llvm-svn: 70716
 2009-05-03 13:03:50 +00:00
Anton Korobeynikov
262c4b9ff9 Add dummy lowering for shifts 
llvm-svn: 70715
 2009-05-03 13:03:33 +00:00
Anton Korobeynikov
f21d1d0d2c We don't have any div at all - thus mark it as expensive 
llvm-svn: 70714
 2009-05-03 13:03:14 +00:00
Anton Korobeynikov
e9e0353b21 Add code enough for emission of reg-reg and reg-imm moves. This allows us to compile "ret i16 0" properly! 
llvm-svn: 70710
 2009-05-03 13:02:04 +00:00
Anton Korobeynikov
4c91b3a6f2 Provide set of reserved registers 
llvm-svn: 70704
 2009-05-03 13:00:11 +00:00
Anton Korobeynikov
ebab62b827 Add proper ISD::RET lowering 
llvm-svn: 70703
 2009-05-03 12:59:50 +00:00
Anton Korobeynikov
e74a06c068 Add first draft of MSP430 calling convention stuff and draft of ISD::FORMAL_ARGUMENTS node lowering. 
llvm-svn: 70702
 2009-05-03 12:59:33 +00:00
Anton Korobeynikov
d49e584da5 Dummy MSP430 backend 
llvm-svn: 70694
 2009-05-03 12:57:15 +00:00