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Author SHA1 Message Date
Evan Cheng
3c91f36a45 Another TODO. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77026 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 00:39:37 +00:00
Evan Cheng
66ac53165e Change Thumb2 jumptable codegen to one that uses two level jumps: 
Before:
      adr r12, #LJTI3_0_0
      ldr pc, [r12, +r0, lsl #2]
LJTI3_0_0:
      .long    LBB3_24
      .long    LBB3_30
      .long    LBB3_31
      .long    LBB3_32

After:
      adr r12, #LJTI3_0_0
      add pc, r12, +r0, lsl #2
LJTI3_0_0:
      b.w    LBB3_24
      b.w    LBB3_30
      b.w    LBB3_31
      b.w    LBB3_32

This has several advantages.
1. This will make it easier to optimize this to a TBB / TBH instruction +
   (smaller) table.
2. This eliminate the need for ugly asm printer hack to force the address
   into thumb addresses (bit 0 is one).
3. Same codegen for pic and non-pic.
4. This eliminate the need to align the table so constantpool island pass
   won't have to over-estimate the size.

Based on my calculation, the later is probably slightly faster as well since
ldr pc with shifter address is very slow. That is, it should be a win as long
as the HW implementation can do a reasonable job of branch predict the second
branch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77024 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 00:33:29 +00:00
Daniel Dunbar
ce63ffb52f More migration to raw_ostream, the water has dried up around the iostream hole. 
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
   "magic" DOUT behavior which avoided calling printing functions when the
   statement was disabled. In addition to being unnecessary magic, it had the
   downside of leaving code in -Asserts builds, and of hiding potentially
   unnecessary computations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77019 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 00:23:56 +00:00
Evan Cheng
90daf4d035 ARM code emitter can't handle Thumb2 instructions yet. So don't even try. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77018 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 00:13:11 +00:00
Daniel Dunbar
961f5852ca Fix build for GCC 4.0? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77016 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 23:42:33 +00:00
Daniel Dunbar
7cdf01d6c5 Fix compile with 4.4 (I hope?); PR4617. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77015 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 23:23:46 +00:00
Andreas Bolka
0baa25d539 Forward-declare raw_ostream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77014 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 23:19:28 +00:00
Owen Anderson
eed707b1e6 Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77011 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 23:12:02 +00:00
Dan Gohman
67efc56b80 AliasAnalysis wants sizes in address-units, not bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77009 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 23:01:30 +00:00
Eli Friedman
4e9bac3769 Fix assert assembling zero-argument constant GEP. 
There's still a strict-aliasing violation here, but I don't feel like 
dealing with that right now...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77005 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 21:56:17 +00:00
Evan Cheng
0b6afa8c71 Uh. It would be useful to actually print the operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77004 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 20:47:38 +00:00
Chris Lattner
fbd3d4a5c3 fix some predicates 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76999 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 20:27:11 +00:00
Chris Lattner
0d4960c3ca change SectionKindForGlobal from being a public (and 
previously virtual) function to being a static function
in the .cpp file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76997 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 20:14:10 +00:00
Evan Cheng
40efc251cd Disable my constant island pass optimization (to make use soimm more effectively). It caused infinite looping on lencod. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76995 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 19:31:03 +00:00
Chris Lattner
b303504a56 make SectionKindForGlobal target independent, and therefore non-virtual. 
It's classifications now include elf-specific discriminators.  Targets
that don't have these features (like darwin and pecoff) simply treat
data.rel like data, etc.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76993 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 19:15:47 +00:00
Evan Cheng
49f846805e Add a workaround for Darwin assembler bug where it's not setting the thumb bit in Thumb2 jumptable entries. We now pass Olden. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76991 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 18:54:23 +00:00
Chris Lattner
f20f250b6f we already know the sectionkind when invoking SelectSectionForGlobal, 
pass it in instead of recomputing it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76990 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 18:42:53 +00:00
Chris Lattner
7420ab2191 make SectionForGlobal non-virtual, add a hook for pic16 to do its "address=" hack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76989 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 18:34:27 +00:00
Dan Gohman
731b5d97be Fix this condition I accidentally inverted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76988 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 18:31:07 +00:00
Jakob Stoklund Olesen
78d12644b9 Add support for promoting SETCC operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76987 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 18:22:59 +00:00
Evan Cheng
789476240d Make sure thumb2 jumptable entries are aligned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76986 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 18:20:44 +00:00
Evan Cheng
23606e35ab Clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76984 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 18:20:16 +00:00
Evan Cheng
c324ecb7bc Replace use of std::set with SmallPtrSet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76983 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 18:19:46 +00:00
Dan Gohman
02a436c48e Convert several more passes to use getAnalysisIfAvailable<TargetData>() 
instead of getAnalysis<TargetData>().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76982 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 18:13:53 +00:00
Chris Lattner
7c023d6759 start refactoring pic16 section selection logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76977 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 17:13:27 +00:00
Chris Lattner
2dcafe4b8f move ELF-specific code into ELFTargetAsmInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76976 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 17:02:17 +00:00
Chris Lattner
e5ca0ac36b tidy up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76975 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 16:53:52 +00:00
Chris Lattner
27f3065cf3 split the ELF-specific section flag inference-from-name code out 
into its own helper function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76974 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 16:50:24 +00:00
Chris Lattner
8adc547a91 make SectionFlagsForGlobal a private static function instead of a public 
virtual one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 16:46:50 +00:00
Chris Lattner
104bbd10e4 move a method up in the file, GV is always non-null, so remove a check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76972 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 16:44:01 +00:00
Chris Lattner
3df6d5d83b There is no need to pass the name into lib/Target/TargetAsmInfo.cpp 
when we have a global with no section explicitly specified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76971 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 16:40:45 +00:00
Chris Lattner
d0418ce890 remove a use of SectionFlagsForGlobal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76970 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 16:40:09 +00:00
Daniel Dunbar
895c9ede1f Another getName -> getNameStr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76967 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 12:21:08 +00:00
Daniel Dunbar
a717b7be88 More move to raw_ostream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76966 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 10:47:20 +00:00
Daniel Dunbar
1cd1d98232 Move more to raw_ostream, provide support for writing MachineBasicBlock, 
LiveInterval, etc to raw_ostream.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76965 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 10:36:58 +00:00
Daniel Dunbar
b95c2fd270 Move more to raw_ostream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76964 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 10:05:20 +00:00
Daniel Dunbar
3f0e83067d Move to raw_ostream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76963 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 09:53:24 +00:00
Daniel Dunbar
f6ccee5a9d Switch to getNameStr(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76962 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 08:24:36 +00:00
Daniel Dunbar
82a29b6a02 Allow llvm_report_error to accept a Twine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76961 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 07:58:10 +00:00
Eli Friedman
23ed52752b Remove unused member functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76960 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 07:43:59 +00:00
Daniel Dunbar
8218f6fc62 Update CMake 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76957 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 07:04:49 +00:00
Daniel Dunbar
2538f7ab2e Add Twine ADT. 
- Not currently used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76956 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 07:04:27 +00:00
Chris Lattner
eed05b8042 hoist section name uniquing logic up to the top-level SectionForGlobal 
implementation, eliminating a dupe.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76953 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 05:10:25 +00:00
Chris Lattner
57743effb8 reduce indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76951 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 05:01:55 +00:00
Chris Lattner
796131ee35 simplify code by making special case more obvious 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76950 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 04:59:43 +00:00
Chris Lattner
f76280de82 the 'isWeakForLinker' code is common between functions and globals, hoist it 
and simplify some other code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76949 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 04:52:38 +00:00
Chris Lattner
55acc6807f Replace UniqueSectionForGlobal with getSectionPrefixForUniqueGlobal. 
The later doesn't depend on any crazy LLVM IR stuff, and this
pulls the concatenation of prefix with GV name (the root problem behind
PR4584) out one level.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76948 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 04:49:34 +00:00
Chris Lattner
837f332372 document SectionFlags::Named better and make it more easily greppable by 
eliminating isNamed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76946 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 04:26:19 +00:00
Chris Lattner
686177dae7 fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76945 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 04:11:40 +00:00
Chris Lattner
c440cc7f2c use section flags more correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76944 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 04:08:17 +00:00