Brian Gaeke
c134395628
Renamed from include/Support/iterator. Doxygenify comments; add autoconf substitution tags.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11754 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:16:10 +00:00
Brian Gaeke
0e67d4cfe2
Replaced by include/Support/iterator.in.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11753 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:16:10 +00:00
Brian Gaeke
587bef9d1a
Regenerated with autoheader-2.57.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11752 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:16:09 +00:00
Brian Gaeke
81d407d503
Add include/Support/iterator as an AC_OUTPUT file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11751 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:16:08 +00:00
Brian Gaeke
008bb70f8a
Make all iterator checks use AC_SUBST instead of AC_DEFINE.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11750 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:16:07 +00:00
Brian Gaeke
295d4b8590
Regenerated with autoconf-2.57.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11749 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:16:06 +00:00
Alkis Evlogimenos
743d0a1f83
Refactor rewinding code for finding the first terminator of a basic
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block into MachineBasicBlock::getFirstTerminator().
This also fixes a bug in the implementation of the above in both
RegAllocLocal and InstrSched, where instructions where added after the
terminator if the basic block's only instruction was a terminator (it
shouldn't matter for RegAllocLocal since this case never occurs in
practice).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11748 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:14:48 +00:00
Chris Lattner
fbc39d5045
Simplify code a bit, don't go off the end of the block, now that the current
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block we are in might be empty
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11744 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 07:42:19 +00:00
Chris Lattner
65cf42d32f
We were forgetting to add FP_REG_KILL instructions to basic blocks which will
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eventually get an assignment due to elimination of PHIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11743 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 07:29:45 +00:00
Chris Lattner
c5943fb186
Implement cast.ll::test14/15
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11742 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 07:16:20 +00:00
Chris Lattner
3c4de7fbe0
Add tests for casts that should be eliminated
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11741 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 07:16:03 +00:00
Chris Lattner
4cb170cc6e
Refactor some code. In the mul - setcc folding case, we really care about
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whether this is the sign bit or not, so check unsigned comparisons as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11740 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 06:38:22 +00:00
Chris Lattner
19e40ade3d
Handle the unsigned form as well
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11739 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 06:37:33 +00:00
Alkis Evlogimenos
12edc7ef3d
Improved PhysRegTracker interface. RegAlloc lazily allocates the register tracker using a std::auto_ptr
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11738 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 06:10:13 +00:00
Chris Lattner
fed58fd72e
Implement mul.ll:test11
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11737 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 06:00:11 +00:00
Chris Lattner
f4821745df
Add a slight variant of test10
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11736 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 05:59:52 +00:00
Chris Lattner
45aaafef49
Implement "strength reduction" of X <= C and X >= C
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11735 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 05:47:48 +00:00
Chris Lattner
fb54b2b744
Implement InstCombine/mul.ll:test10, which is a case that occurs when dealing
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with "predication"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11734 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 05:39:21 +00:00
Chris Lattner
1dda055e55
This multiply can be eliminated
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11733 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 05:38:47 +00:00
Alkis Evlogimenos
fc2b449a17
Simplify iterator usage now that we have next(). Also don't pass iterators by reference now that MachineInstr* are in an ilist
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11732 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 04:12:30 +00:00
Chris Lattner
a118ae1c9d
Update the 'new features' section
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11731 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 03:51:34 +00:00
Chris Lattner
3fd8259c9b
Bug fixed
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11730 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 03:36:36 +00:00
Chris Lattner
f7b42259e9
Work around a gas bug. Print '-9223372036854775808' as unsigned.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11729 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 03:27:05 +00:00
Chris Lattner
311ca2e51f
Implement cast fp -> bool
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11728 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 03:21:41 +00:00
Chris Lattner
16865af5d5
Add testcase for the casts that are missing in PR249
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11727 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 03:21:09 +00:00
Chris Lattner
baa58a5691
Stop passing iterators around by reference now that we have ilists!
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Implement cast Type::ULongTy -> double
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11726 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 03:10:10 +00:00
Alkis Evlogimenos
25d9d5800c
Some code cleanups from Chris
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11724 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 01:57:39 +00:00
Alkis Evlogimenos
534f545ef1
Fix comments in PhysRegTracker and rename isPhysRegAvail to isRegAvail to be consistent with the other two
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11723 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 01:25:05 +00:00
Chris Lattner
2d0a82570a
Add a new cmove instruction
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11722 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 01:16:05 +00:00
Alkis Evlogimenos
98e17cf543
Move LiveIntervals.h up to be the first included header
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11721 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 01:01:21 +00:00
Alkis Evlogimenos
888b1a6ccd
Pull PhysRegTracker out of RegAllocLinearScan as it can be used by other allocators as well
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11720 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 00:53:31 +00:00
Alkis Evlogimenos
a2f6a408dc
Move LiveIntervals.h to lib/CodeGen since it shouldn't be exposed to other parts of the compiler
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11719 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 00:50:15 +00:00
Chris Lattner
986618ebc7
Only insert FP_REG_KILL instructions in MachineBasicBlocks that actually
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use FP instructions. This reduces the number of instructions inserted in
176.gcc (for example) from 58074 to 101 (it doesn't use much FP, which
is typical). This reduction speeds up the entire code generator. In the
case of 176.gcc, llc went from taking 31.38s to 24.78s. The passes that
sped up the most are the register allocator and the 2 live variable analysis
passes, which sped up 2.3, 1.3, and 1.5s respectively. The asmprinter
pass also sped up because it doesn't print the instructions in comments :)
Note that this patch is likely to expose latent bugs in machine code passes,
because now basicblock can be empty, where they were never empty before. I
cleaned out regalloclocal, but who knows about linscan :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11717 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 19:47:26 +00:00
Chris Lattner
d0d1c8f830
Another bug fix for empty MBB's
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11716 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 19:37:31 +00:00
Alkis Evlogimenos
890f92328d
Move MOTy::UseType enum into MachineOperand. This eliminates the
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switch statements in the constructors and simplifies the
implementation of the getUseType() member function. You will have to
specify defs using MachineOperand::Def instead of MOTy::Def though
(similarly for Use and UseAndDef).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11715 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 19:23:26 +00:00
Chris Lattner
688c8252d2
Fix a bug where we were implicitly assuming that there would be at least
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one terminator instruction in each basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11714 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 19:08:15 +00:00
Chris Lattner
7ca04097ad
Reduce the number of pointless copies inserted due to constant pointer refs.
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Also, make an assertion actually fireable!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11713 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 17:35:42 +00:00
Chris Lattner
827832c705
Fix bug in previous checkout: leave the iterator at the first instruction
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AFTER the GEP that was emitted. :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11712 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 17:05:38 +00:00
Alkis Evlogimenos
e33da36cbd
Fix silly bug in implementation of getUseType(). Thanks Misha.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11711 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 07:24:19 +00:00
Chris Lattner
3f1e8e7ceb
Completely rewrite how getelementptr instructions are expanded. This has two
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(minor) benefits right now:
1. An extra dummy MOVrr32 is gone. This move would often be coallesced by
both allocators anyway.
2. The code now uses the gep_type_iterator to walk the gep, which should future
proof it a bit. It still assumes that array indexes are Longs though.
These don't really justify rewriting the code. The big benefit will come later
though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11710 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 07:04:00 +00:00
Alkis Evlogimenos
f216421181
When folding memory operands in machine instructions be careful to
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leave register operands with the same use/def flags as the original
instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11709 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 06:54:26 +00:00
Chris Lattner
2425f8c629
Significantly simplify gep_type_iterator, and make its interface more general/powerful
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11708 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 06:27:03 +00:00
Chris Lattner
e735b2de30
Fix a soon-to-be-missing #include
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11707 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 06:26:17 +00:00
Chris Lattner
b228f9c86b
Get all instruction definitions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11706 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 06:25:38 +00:00
Chris Lattner
14c6ef7ca1
Wow this is out of date. When we have _real_ code generator documentation,
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this should be folded into it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11705 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 05:53:54 +00:00
Alkis Evlogimenos
0f338a1e8c
Print basic block boundaries in machine instruction debug output.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11704 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 05:46:04 +00:00
Chris Lattner
8b1dc16444
Link to most recent "LLVM document"
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11703 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 05:45:02 +00:00
Chris Lattner
c6bd195336
Implement Transforms/InstCombine/cast.ll:test13, a case which occurs in a
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hot 164.gzip loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11702 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 05:25:17 +00:00
Chris Lattner
0ca4418b95
Test that the instruction combiner can fold away a cast in a GEP instruction.
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This occurs in 164.gzip, as a result of it declaring arrays extern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11701 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 05:24:09 +00:00
Chris Lattner
6d2fdcfb8a
The two address pass cannot handle two addr instructions where one incoming
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value is a physreg and one is a virtreg. For this reason, disable copy folding
entirely for physregs. Also, use the new isMoveInstr target hook which gives us
folding of FP moves as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11700 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 04:44:58 +00:00