Commit Graph

5144 Commits

Author SHA1 Message Date
Chris Lattner
d5c59d5c84 Cleanups & efficiency improvements
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10888 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 20:24:09 +00:00
Chris Lattner
8c202cdbda The bcwriter does not want ConstantPointerRef's to be indexed, and the asmwriter never did!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10885 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 18:47:15 +00:00
Chris Lattner
7be08bfae1 ConstantPointerRef's are no longer emitted. This saves 20028 bytes in the
bytecode files when compiling 176.gcc, but more importantly will make it
easier to eliminate CPR's in the future (no new .bc revision will be
required to support them)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10884 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 18:46:56 +00:00
Chris Lattner
933619912b Allow bytecode files to refer directly to global values as constants, instead
of forcing them to go through ConstantPointerRef's.  This allows bytecode
files to mirror .ll files, allows more efficient encoding, and makes it easier
to eventually eliminate CPR's.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10883 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 18:45:25 +00:00
Chris Lattner
ff47e7d02e Fix more breakage with string change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10882 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 18:39:06 +00:00
Brian Gaeke
d011a027e0 Include TargetRegInfo.h and declare SparcTargetMachine forward, to make this
header more easily includable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10880 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 18:17:07 +00:00
Brian Gaeke
0f5918a0b6 Make this assertion more self-explanatory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10879 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 18:15:58 +00:00
Chris Lattner
f4c0e7f587 Fix PR73: bytecode format inconsistent
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10876 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 17:55:09 +00:00
Chris Lattner
44d0eebc13 Fix PR73
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10875 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 17:55:01 +00:00
Chris Lattner
570fb1cbd8 Fix brokenness in my last checking
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10874 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 16:56:15 +00:00
Chris Lattner
7969dc2bec Change all of the bytecode reader primitives to throw exceptions instead of
returning error codes.  Because they don't return an error code, they can
return the value read, which simplifies the code and makes the reader more
efficient (yaay!).

Also eliminate the special case code for little endian machines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10871 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 06:13:09 +00:00
Chris Lattner
c8434e3d71 Remove the optimization that depends on ENDIAN_LITTLE: it's not worth it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10870 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-15 06:11:30 +00:00
Chris Lattner
7851e1b328 Improve comments, add support for remembering the constants strings that
are to be emitted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10866 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 23:37:43 +00:00
Chris Lattner
83bb3d2f4e The new bytecode format supports emitting strings a special case. This is
intended to save size (and does on small programs), but on big programs it
actually increases the size of the program slightly.  The deal is that many
functions end up using the characters that the string contained, and the
characters are no longer in the global constant table, so they have to be
emitted in function specific constant pools.

This pessimization will be fixed in subsequent patches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10864 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 23:36:54 +00:00
Chris Lattner
9e893e8a3d Version 1.2 now supports encoding strings as a special case, to avoid having
to emit all of those sbyte constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10863 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 23:35:21 +00:00
Chris Lattner
dcea63026f When emitting bytecode, handle strings specially. Do not add the characters
that make up the strings to the slotcalculator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10862 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 23:34:39 +00:00
Chris Lattner
4e8683664d Like output_data, it's obvious that input_data was only used with 1 character
data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10861 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 23:03:22 +00:00
Chris Lattner
411a9a6f07 "fix" a nasty race condition
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10860 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 21:18:03 +00:00
Chris Lattner
de31b76784 Fix some exception safety problems
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10859 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 20:58:17 +00:00
Chris Lattner
f907bac068 Hrm, apparently I missed lowering this intrinsic. :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10858 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 20:41:29 +00:00
Chris Lattner
0a3a27b0ae It is obvious that this has never been used for outputing more than a single
byte, it's totally endian incorrect!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10857 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 18:50:28 +00:00
Chris Lattner
44e38034d5 Be const correct
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10856 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 18:41:38 +00:00
Chris Lattner
7aa162b29b Fix bug in previous checkin: Demorgan would be ashamed of me, I need to
lay off the crack.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10855 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 17:51:53 +00:00
Chris Lattner
07ad64231f Eliminate the isStringCompatible function, using ConstantArray::isString.
It's not clear why the code was looking for signed chars < 0, but it can't
matter to the assembler anyway, so the check goes away.  This also fixes
compatibility with arrays of [us]byte that have constantexprs in them.

Also slightly restructure some code to be cleaner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10854 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 17:15:17 +00:00
Chris Lattner
aa06d0439e Eliminate the isStringCompatible function, using ConstantArray::isString.
It's not clear why the code was looking for signed chars < 0, but it can't
matter to the assembler anyway, so the check goes away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10853 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 17:14:42 +00:00
Chris Lattner
e3f84f53ca Use new method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10852 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 17:07:46 +00:00
Chris Lattner
13cfdea1ef Implement ConstantArray::isString
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10851 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 17:06:38 +00:00
Chris Lattner
d6942d7633 Ok, I can't handle it. This is a temporary checkin of a ton of statistics that
i'm using in my work to reduce the bytecode file sizes.  These will eventually
be removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10849 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 16:54:21 +00:00
Chris Lattner
c08912f917 Remove support for the pre-1.0 bytecode version #1. This will become
the bytecode revision generated by LLVM 1.2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10848 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 16:44:44 +00:00
Alkis Evlogimenos
d6e40a6cbc Properly update #intervals statistic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10847 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 10:44:29 +00:00
Chris Lattner
f78616b339 Fix InstCombine/2004-01-13-InstCombineInvokePHI.ll, which also fixes lots
of C++ programs in Shootout-C++, including lists1 and moments, etc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10845 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 06:06:08 +00:00
Brian Gaeke
34562bab04 Don't pass anything to the IntrinsicLowering class that is not_intrinsic,
because that makes it abort. Also, fix a typo in a comment.

This checkin brought to you by the "It only takes about 30 seconds to run
ENABLE_LLI tests on Shootout on zion, even if they all dump core" fund.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10844 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 06:02:53 +00:00
Chris Lattner
c9b0702a89 Fix check. PHI nodes must be handled specially, of course.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10842 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 05:42:52 +00:00
Chris Lattner
30768ac3c2 Tighten up verifier checks. The result of an invoke instruction only
dominates the normal destination, not the exceptional dest (ie, the result
of a call is undefined on an exception)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10841 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 04:25:59 +00:00
Chris Lattner
277bafbff7 Toggle sense of flag
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10838 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 02:50:16 +00:00
Chris Lattner
8ce750145d The only clients of the slot calculator are now the asmwriter and bcwriter.
Since this really only makes sense for these two, change hte instance variable
to reflect whether we are writing a bytecode file or not.  This makes it
reasonable to add bcwriter specific stuff to it as necessary.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10837 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 02:49:34 +00:00
Alkis Evlogimenos
9739736b94 Fix bug in LiveIntervals::Interval::overlaps and
LiveIntervals::Interval::liveAt. Both were considering the live ranges
closed in the end, when they are actually open.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10835 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 00:20:09 +00:00
Alkis Evlogimenos
5ab20273a4 Improve debugging output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10834 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 00:09:36 +00:00
Alkis Evlogimenos
af25473d5e Fix miscomputation of live intervals. The catch is that registers can
be dead at the defining instruction but can only be killed in
subsequent ones.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10833 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 22:26:14 +00:00
Alkis Evlogimenos
1a119e2410 Remove allocatable registers vector. It is already provided by
LiveVariables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10830 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 22:10:43 +00:00
Alkis Evlogimenos
a3a6524965 Cleanup debugging output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10824 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 21:53:20 +00:00
Chris Lattner
7446dc0c4f Finegrainify namespacification
Using the SlotCalculator is total overkill for this file, a simple map
will suffice.  Why doesn't this use the NameMangler interface?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10823 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 21:27:59 +00:00
Alkis Evlogimenos
63841bc85d Fix output of live intervals to show correctly its closed, open
ranges, i.e. [a,b)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10822 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 21:17:47 +00:00
Alkis Evlogimenos
c55640f019 Remove unneeded check (with the recent change in live variables a use
of a physical register is always dominated by a def).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10821 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 21:16:25 +00:00
Alkis Evlogimenos
b7be115140 Indentation and whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10820 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 20:42:08 +00:00
Alkis Evlogimenos
f7df173e3b Fix bug introduced by previous commit: check if fixed intervals
overlap before adding their spill weight.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10819 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 20:37:01 +00:00
Brian Gaeke
f954326741 Remove dump-input option.
Make addPassesToEmitAssembly() look slightly more like addPassesToJITCompile().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10818 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 19:26:21 +00:00
Alkis Evlogimenos
19b6486d38 Correctly compute live variable information for physical registers
when an implicitely defined register is later used by an alias. For example:

         call foo
         %reg1024 = mov %AL

The call implicitely defines EAX but only AL is used. Before this fix
no information was available on AL. Now EAX and all its aliases except
AL get defined and die at the call instruction whereas AL lives to be
killed by the assignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10813 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 06:24:30 +00:00
Chris Lattner
504e8fb74e Implement a bunch of symbolic constant folding opportunities. This implements
testcase test/Regression/Assembler/ConstantExprFold.llx

Note that these kinds of things only rarely show up in source code, but are
exceedingly common in the intermediate stages of algorithms like SCCP.  By
folding things (especially relational operators) that use symbolic constants,
we are able to speculatively fold more conditional branches, which can
lead to some big simplifications.

It would be easy to add a lot more special cases here, so if you notice
SCCP missing anything "obvious", you know what to make smarter.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10812 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 05:51:55 +00:00
Chris Lattner
3a534f200a Implement new Instruction::isRelational method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10810 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-12 23:18:25 +00:00