Chris Lattner
f53321422d
Use autogenerated mod/ref info for intrinsics.
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llvm-svn: 26670
2006-03-09 22:31:29 +00:00
Chris Lattner
805838e63e
Fix a crash compiling Obsequi
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llvm-svn: 26529
2006-03-04 21:48:01 +00:00
Chris Lattner
0d3abd353b
Be more conservative with our symbolic alias analysis. In particular,
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don't assume that A[1][0] and A[0][i] can't alias. "i" might be out of
range, or even negative. This fixes a miscompilation of 188.ammp (which
does bad pointer tricks) with the new CFE.
Testcase here: Analysis/BasicAA/2006-03-03-BadArraySubscript.ll
llvm-svn: 26515
2006-03-04 02:06:34 +00:00
Nate Begeman
4750001146
Add bswap intrinsics as documented in the Language Reference
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llvm-svn: 25309
2006-01-14 01:25:24 +00:00
Andrew Lenharth
177491a9a2
prevent cse of readcyclecounter
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llvm-svn: 24303
2005-11-11 19:02:54 +00:00
Andrew Lenharth
dca2f13e76
continued readcyclecounter support
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llvm-svn: 24300
2005-11-11 16:47:30 +00:00
Chris Lattner
f369fd383d
floor/ceil don't read/write memory. This allows gcse to eliminate 6 calls
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in mesa.
llvm-svn: 23015
2005-08-24 16:58:56 +00:00
Andrew Lenharth
10f725f64b
Remove glibc specific functions, and mark a couple as C99
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llvm-svn: 22384
2005-07-11 20:35:20 +00:00
Andrew Lenharth
8089fbc902
because on alpha:
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# define errno (*__errno_location ())
*shakes head
llvm-svn: 22383
2005-07-11 17:41:12 +00:00
Chris Lattner
5a7f1642b7
By definition, 'tail' calls cannot access the stack frame of their caller.
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Expose this as a simple form of mod/ref information. This implements
BasicAA/tailcall-modref.ll
llvm-svn: 21796
2005-05-08 23:58:12 +00:00
Chris Lattner
4f7bba1106
These intrinsics do not access memory
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llvm-svn: 21718
2005-05-06 05:21:04 +00:00
Chris Lattner
234ffe2395
Add llvm.sqrt intrinsic, patch contributed by Morten Ofstad
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llvm-svn: 21627
2005-04-30 03:44:07 +00:00
Chris Lattner
fb0d0ea349
These functions can set errno!
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llvm-svn: 21609
2005-04-28 21:52:31 +00:00
Misha Brukman
122d682689
Remove trailing whitespace
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llvm-svn: 21416
2005-04-21 21:13:18 +00:00
Chris Lattner
30ac52c4b4
Fix Regression/Analysis/BasicAA/2005-03-09-BrokenBasicAA.ll, a miscompilation
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that Alkis found with Java, thanks Alkis!
llvm-svn: 20531
2005-03-09 16:29:52 +00:00
Jeff Cohen
6c0db8d863
Add even more missing createXxxPass functions.
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llvm-svn: 19402
2005-01-08 22:01:16 +00:00
Chris Lattner
6fe0ea70e2
Fix a bug in -no-aa that caused two DSGraph tests to XPASS.
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llvm-svn: 18962
2004-12-15 17:13:24 +00:00
Chris Lattner
8139749984
Adjust to new alias analysis interfaces
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llvm-svn: 18957
2004-12-15 07:22:13 +00:00
Alkis Evlogimenos
8547388d22
Add testcase and fix for yet another case where we query the size an
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abstract type.
llvm-svn: 18678
2004-12-08 23:56:15 +00:00
Alkis Evlogimenos
b00f884344
Add testcase and fix for another case where we query the size an
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abstract type.
llvm-svn: 18676
2004-12-08 23:42:11 +00:00
Reid Spencer
d0d846cd06
For PR387:\
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Add getModRefInfo method to avoid overloaded virtuals
llvm-svn: 18601
2004-12-07 08:11:24 +00:00
Chris Lattner
e65724d6eb
Fix DeadStoreElimination/2004-11-28-LiveStoreDeleted.ll
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llvm-svn: 18308
2004-11-28 20:30:15 +00:00
Chris Lattner
aecb6daf08
The trick with globals actually works with allocas and malloc too
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llvm-svn: 18262
2004-11-26 20:01:48 +00:00
Chris Lattner
e076e608d8
A store or load cannot alias a global if the accessed amount is larger then
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the global.
This implements Regression/Analysis/BasicAA/global-size.ll
llvm-svn: 18261
2004-11-26 19:20:01 +00:00
Chris Lattner
bd02c10b87
Simplify conditional and fix LICM/2004-11-17-UndefIndexCrash.ll
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by saying what we mean
llvm-svn: 17913
2004-11-17 17:39:39 +00:00
Chris Lattner
b3a86dc93f
Be more careful about looking for constants when we really want constantint's.
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llvm-svn: 17029
2004-10-16 16:07:10 +00:00
Alkis Evlogimenos
0c50e0f211
Fixes to make LLVM compile with vc7.1.
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Patch contributed by Paolo Invernizzi!
llvm-svn: 16152
2004-09-03 18:19:51 +00:00
Alkis Evlogimenos
fb27f702ca
Merge i*.h headers into Instructions.h as part of bug403.
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llvm-svn: 15325
2004-07-29 12:17:34 +00:00
Chris Lattner
b2cf39d1a4
Fix test/Regression/Analysis/BasicAA/2004-07-28-MustAliasbug.llx
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This also fixes the miscompilation of MallocBench/gs with dead store
elimination enabled.
llvm-svn: 15324
2004-07-29 07:56:39 +00:00
Chris Lattner
40bd881142
Make basicaa a bit more aggressive
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llvm-svn: 15252
2004-07-27 02:18:52 +00:00
Chris Lattner
fe3fff9354
basic-aa can actually provide simple mod/ref info
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llvm-svn: 15251
2004-07-27 02:13:55 +00:00
Chris Lattner
9cfa22fb48
This was implemented back in march
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llvm-svn: 15250
2004-07-27 01:59:42 +00:00
Chris Lattner
36940c22f7
Do not ignore casts unless they are pointer-pointer casts. This caused us
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to miscompile the SingleSource/Regression/C++/pointer_member.cpp program.
llvm-svn: 15062
2004-07-21 03:56:54 +00:00
Reid Spencer
b339652b44
bug 122:
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- Replace ConstantPointerRef usage with GlobalValue usage
- Minimize redundant isa<GlobalValue> usage
- Correct isa<Constant> for GlobalValue subclass
llvm-svn: 14942
2004-07-18 00:18:30 +00:00
Chris Lattner
fb6e1c2007
Simplify logic.
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llvm-svn: 14825
2004-07-14 20:27:12 +00:00
Chris Lattner
9b19f34fe2
Fix a tiny bug in the -no-aa pass, in which it did not ever get a target data.
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This is a regression from 1.2, though noone uses -no-aa anyway
llvm-svn: 14245
2004-06-19 08:05:58 +00:00
Chris Lattner
7c3600a50e
isnan is dead
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llvm-svn: 14191
2004-06-15 21:52:58 +00:00
Chris Lattner
8dd2380de4
llvm.isnan doesn't access memory
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llvm-svn: 14151
2004-06-11 06:17:13 +00:00
Chris Lattner
7ccc4c2ed9
Move the -no-aa AA implementation into this file since both of these
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alias analysis implementations are special: they do not autoforward to a
chained implementation of alias analysis
llvm-svn: 13683
2004-05-23 21:15:12 +00:00
Chris Lattner
a688d42e8c
Hrm, operator new and new[] do not belong here. We should not CSE them! :)
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llvm-svn: 12859
2004-04-12 05:16:42 +00:00
Chris Lattner
02a9e10e74
operator new & operator new[] do not kill any legal memory locations.
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llvm-svn: 12833
2004-04-11 18:16:34 +00:00
Chris Lattner
aa1c0d5e76
Allow clients to be more efficient.
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llvm-svn: 12831
2004-04-11 16:43:07 +00:00
Chris Lattner
474637518d
Add a couple of more functions that cannot access memory (the intrinsics) and
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don't write to memory
llvm-svn: 12808
2004-04-10 06:55:27 +00:00
Chris Lattner
9236135e8f
Support getelementptr instructions which use uint's to index into structure
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types and can have arbitrary 32- and 64-bit integer types indexing into
sequential types.
llvm-svn: 12653
2004-04-05 01:30:19 +00:00
Chris Lattner
c2eb0678d8
Add some missing functions. Make sure to handle calls together in case the
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client has another VN implementation that can VN calls.
llvm-svn: 12427
2004-03-16 03:41:35 +00:00
Chris Lattner
cd227e5bdb
Fix a minor bug, implementing GCSE/call_pure_function.ll
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Also, add some stuff I missed before.
llvm-svn: 12417
2004-03-15 04:18:28 +00:00
Chris Lattner
0ea40c6fac
Teach basicaa about some stdc functions.
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llvm-svn: 12408
2004-03-15 03:36:49 +00:00
Chris Lattner
bb08e801d4
Fix a couple of minor problems. Because PHI nodes can use themselves, this
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could cause infinite loops. Also, getUnderlyingObject can return null
llvm-svn: 12351
2004-03-12 23:12:55 +00:00
Chris Lattner
6bd3783ef8
Implement mod/ref analysis for a trivial case where locals don't escape.
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This comes up when you have a local array on the stack and you never pass
the address of elements around.
llvm-svn: 12349
2004-03-12 22:39:00 +00:00
Chris Lattner
9bf85f216b
Expand on my note-to-self
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llvm-svn: 12029
2004-03-01 02:44:44 +00:00