Chris Lattner
d89d888cc5
Fix Transforms/InstCombine/2006-02-07-SextZextCrash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26040 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 19:07:40 +00:00
Chris Lattner
78ee0added
new testcase that caused instcombine to crash on 176.gcc last night.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26039 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 19:07:25 +00:00
Evan Cheng
2338c5cb0e
Darwin ABI issues: weak, linkonce, etc. dynamic-no-pic support is complete.
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Also fixed a function stub bug. Added weak and linkonce support for
x86 Linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26038 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 08:38:37 +00:00
Evan Cheng
183fff997c
Remind myself to add PIC and static asm printer support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26037 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 08:35:44 +00:00
Chris Lattner
74c51a0ff2
Generalize MaskedValueIsZero into a ComputeMaskedNonZeroBits function, which
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is just as efficient as MVIZ and is also more general.
Fix a few minor bugs introduced in recent patches
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26036 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 08:05:22 +00:00
Chris Lattner
3bedbd9d71
Make MaskedValueIsZero take a uint64_t instead of a ConstantIntegral as a
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mask. This allows the code to be simpler and more efficient.
Also, generalize some of the cases in MVIZ a bit, making it slightly more aggressive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26035 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 07:27:52 +00:00
Chris Lattner
1a074fce15
Use Type::getIntegralTypeMask() to simplify some code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26034 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 07:00:41 +00:00
Chris Lattner
6dce1a7dfe
Implement the beginnings of a facility for simplifying expressions based on
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'demanded bits', inspired by Nate's work in the dag combiner. This isn't
complete, but needs to unrelated instcombiner changes to continue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26033 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 06:56:34 +00:00
Chris Lattner
ab0e04c2f2
add a new Type::getIntegralTypeMask() method, which is useful for clients that
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want to do bitwise inspection of integer types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26032 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 06:17:10 +00:00
Jeff Cohen
8c9191c644
The interpreter assumes that the caller of runFunction() must be lli, and
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therefore the function being called must be a main() returning an int. The
consequences when these assumptions are false are not good, so don't assume
them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26031 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 05:29:44 +00:00
Jeff Cohen
68835dd511
Teach the interpreter to handle global variables that are added to a module after
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interpretation has begun. The JIT already handles this situation correctly, and
the interpreter can already handle new functions being added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26030 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 05:11:57 +00:00
Jeff Cohen
aa02c1df1d
Fix some truncation warnings.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26029 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 03:34:35 +00:00
Chris Lattner
03a9939c61
fix an error compiling with -pedantic
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26028 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 01:12:49 +00:00
Chris Lattner
763317de1b
Add the simple PPC integer constraints
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26027 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 00:47:13 +00:00
Evan Cheng
21ad392ee6
Hoist all SDOperand declarations within a Select_{opcode}() to the top level
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to reduce stack memory usage. This is intended to work around the gcc bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26026 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-07 00:37:41 +00:00
Chris Lattner
a3b8c57b9e
Eliminate the printCallOperand method, using a 'call' modifier on
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printOperand instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26025 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 23:41:19 +00:00
Chris Lattner
04cadb3684
Add support for modifier strings in machine instr descriptions. This allows
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us to avoid creating lots of "Operand" types with different printers, instead
we can fold several together and use modifiers. For example, we can now use:
${target:call} to say that the operand should be printed like a 'call' operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26024 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 23:40:48 +00:00
Chris Lattner
b03b080a82
Simplify the variant handling code, no functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26023 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 22:43:28 +00:00
Chris Lattner
815ef5b3dd
Change prototype
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26022 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 22:18:19 +00:00
Chris Lattner
a36cb0a6b1
Add support for modifier characters to operand printers
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26021 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 22:17:23 +00:00
Chris Lattner
f483e58212
Change the prototype of PrintAsmOperand
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26020 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 22:16:41 +00:00
Jim Laskey
f60c2414ab
Goodbye nasty macro.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26019 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 21:54:05 +00:00
Jim Laskey
c2f0c8def7
Edit requests from Sabre.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26018 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 19:12:02 +00:00
Andrew Lenharth
054e2a758b
see what this allignment thing will do
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26017 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 17:15:17 +00:00
Jim Laskey
86cbdba522
Changing model for the construction of debug information.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26016 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 15:33:21 +00:00
Jim Laskey
984cb3773f
We seem to have settled to __DWARF for section name.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26015 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 14:16:15 +00:00
Evan Cheng
7cd19d038f
At the end of isel, select a replacement node for each handle that does not
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have one. This can happen if a load's real uses are dead (i.e. they do not
have uses themselves).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26014 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 08:12:55 +00:00
Evan Cheng
024524fe9b
Name change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26013 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 06:03:35 +00:00
Evan Cheng
5e35168b11
- Update load folding checks to match those auto-generated by tblgen.
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- Manually select SDOperand's returned by TryFoldLoad which make up the
load address.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26012 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-06 06:02:33 +00:00
Evan Cheng
0a83ed506c
Handle HANDLENODE: just return itself.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26011 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 08:46:14 +00:00
Evan Cheng
7564e0b46d
Complex pattern isel code shouldn't select nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26010 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 08:45:01 +00:00
Chris Lattner
c26017a4ae
Fix the Sparc backend with Evan's recent tblgen changes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26009 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 08:35:50 +00:00
Chris Lattner
cb0dfba9e1
SparcV8 -> Sparc
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26008 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 08:30:45 +00:00
Chris Lattner
33872c99be
This xform isn't safe
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26007 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 08:26:16 +00:00
Nate Begeman
be71442292
Back out previous commit, it isn't safe.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26006 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 08:23:00 +00:00
Nate Begeman
bab9239d05
fold c1 << (x + c2) into (c1 << c2) << x. fix a warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26005 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 08:07:24 +00:00
Chris Lattner
176f0416d1
some stuff is done
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26004 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 07:54:37 +00:00
Chris Lattner
5f3b0eeddb
Turn A % (C << N), where C is 2^k, into A & ((C << N)-1) [urem only].
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Turn A / (C1 << N), where C1 is "1<<C2" into A >> (N+C2) [udiv only].
Tested with: rem.ll:test5, div.ll:test10
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26003 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 07:54:04 +00:00
Chris Lattner
fee906b482
new testcases
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26002 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 07:52:47 +00:00
Nate Begeman
c031e33b68
Handle urem by shifted powers of 2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26001 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 07:36:48 +00:00
Nate Begeman
fb5e4bdded
handle combining A / (B << N) into A >>u (log2(B)+N) when B is a power of 2
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26000 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 07:20:23 +00:00
Evan Cheng
900c826bc7
Use SelectRoot() as the entry to any tblgen based isel.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25998 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 06:51:51 +00:00
Evan Cheng
ba2f0a9ee5
Use SelectRoot() as entry of any tblgen based isel.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25997 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 06:46:41 +00:00
Chris Lattner
23c5b3c5ce
Encourage use of the V8 ABI over the V9 ABI.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25996 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 06:44:17 +00:00
Evan Cheng
e41bf82107
Allow more loads to be folded which were previously prevented from happening
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due to ordering issue. i.e. they were selected for chain use first.
Now at load select time, check if it is being selected for a chain use and if
it has only a single real use. If so, return a HANDLENODE (with the load as
its operand) in its place and record it.
When it is folded or the load is selected for a real use, the isel records it
as the replacement for the HANDLENODE. The replacement is done when all nodes
are selected.
This scheme exposed a couple of problems where cycles can happen. (See comments
in EmitMatchCode() for descriptions of the problems and their workaround /
solutions.) These problems have been resolved with a small compile time
penality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25995 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 06:43:12 +00:00
Chris Lattner
029e844994
This document is out of date. :(
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25994 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 06:40:12 +00:00
Chris Lattner
58504a6aa0
V8 -> Sparc
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25993 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 06:39:36 +00:00
Chris Lattner
c6aaf5acf9
Remove the SparcV8 backend. It has been renamed to be the Sparc backend.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25992 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 06:33:29 +00:00
Chris Lattner
e7c839ed5a
remove V8 reference
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25991 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 06:32:59 +00:00
Evan Cheng
4ee6211258
* Added SDNode::isOnlyUse().
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* Fix hasNUsesOfValue(), it should be const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25990 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-05 06:29:23 +00:00