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1242 Commits

Author SHA1 Message Date
Chris Lattner
bd00b4a18e post-dom-frontiers requires proper post-dominance 
llvm-svn: 24409
 2005-11-18 07:28:26 +00:00
Andrew Lenharth
177491a9a2 prevent cse of readcyclecounter 
llvm-svn: 24303
 2005-11-11 19:02:54 +00:00
Andrew Lenharth
dca2f13e76 continued readcyclecounter support 
llvm-svn: 24300
 2005-11-11 16:47:30 +00:00
Chris Lattner
2724ebe02e Fix a problem that Nate noticed with LSR: 
When inserting code for an addrec expression with a non-unit stride, be
more careful where we insert the multiply.  In particular, insert the multiply
in the outermost loop we can, instead of the requested insertion point.

This allows LSR to notice the mul in the right loop, reducing it when it gets
to it.  This allows it to reduce the multiply, where before it missed it.

This happens quite a bit in the test suite, for example, eliminating 2
multiplies in art, 3 in ammp, 4 in apsi, reducing from 1050 multiplies to
910 muls in galgel (!), from 877 to 859 in applu, and 36 to 30 in bzip2.

This speeds up galgel from 16.45s to 16.01s, applu from 14.21 to 13.94s and
fourinarow from 66.67s to 63.48s.

This implements Transforms/LoopStrengthReduce/nested-reduce.ll

llvm-svn: 24102
 2005-10-30 06:24:33 +00:00
Chris Lattner
8a257558a0 remove a dead file 
llvm-svn: 24085
 2005-10-29 04:43:38 +00:00
John Criswell
0893d5847f Move some constant folding functions into LLVMAnalysis since they are used 
by Analysis and Transformation passes.

llvm-svn: 24038
 2005-10-27 16:00:10 +00:00
John Criswell
d6538108e8 Move some constant folding code shared by Analysis and Transform passes 
into the LLVMAnalysis library.
This allows LLVMTranform and LLVMTransformUtils to be archives and linked
with LLVMAnalysis.a, which provides any missing definitions.

llvm-svn: 24036
 2005-10-27 15:54:34 +00:00
Chris Lattner
22c8bcd5c6 Remove this pass, it is not useful 
llvm-svn: 23949
 2005-10-24 02:35:43 +00:00
Chris Lattner
e6f7a38925 DONT_BUILD_RELINKED is gone and implied by BUILD_ARCHIVE now 
llvm-svn: 23940
 2005-10-24 02:26:13 +00:00
Chris Lattner
a4b13acd52 Only build .a file versions of these libraries, instead of .a and .o versions. 
This should speed up build times.

llvm-svn: 23933
 2005-10-24 01:59:48 +00:00
Chris Lattner
ffba9fcbff don't bother building the archive version of this library 
llvm-svn: 23927
 2005-10-24 01:08:20 +00:00
Chris Lattner
17f407da37 expose a ctor 
llvm-svn: 23924
 2005-10-24 01:00:45 +00:00
Chris Lattner
a1b11b2aa4 implement some prototypes 
llvm-svn: 23920
 2005-10-24 00:38:38 +00:00
Chris Lattner
67d9e82237 move this to the analyze tool 
llvm-svn: 23918
 2005-10-24 00:27:36 +00:00
Chris Lattner
8503ee5b01 wrap a long line 
llvm-svn: 23507
 2005-09-28 22:30:58 +00:00
Chris Lattner
ab0448905e Add a new getLoopLatch() method. 
llvm-svn: 23315
 2005-09-12 17:03:55 +00:00
Chris Lattner
f369fd383d floor/ceil don't read/write memory. This allows gcse to eliminate 6 calls 
in mesa.

llvm-svn: 23015
 2005-08-24 16:58:56 +00:00
Chris Lattner
3bfebb1e8f Fix Transforms/LoopStrengthReduce/2005-08-15-AddRecIV.ll 
llvm-svn: 22797
 2005-08-16 00:37:01 +00:00
Chris Lattner
c2cbe96e25 Teach LLVM to know how many times a loop executes when constructed with 
a < expression, e.g.: for (i = m; i < n; ++i)

llvm-svn: 22793
 2005-08-15 23:33:51 +00:00
Chris Lattner
0730ac081a Fix an obvious oops 
llvm-svn: 22742
 2005-08-10 00:59:40 +00:00
Chris Lattner
6ca08d5739 implement two helper methods 
llvm-svn: 22736
 2005-08-09 23:36:33 +00:00
Misha Brukman
e094f6c611 * Unbreak optimized build (noticed by Eric van Riet Paap) 
* Comment #endif clauses for readability

llvm-svn: 22646
 2005-08-04 14:16:48 +00:00
Chris Lattner
62b0ecdfb8 add support for Graphviz when viewing CFGs 
llvm-svn: 22620
 2005-08-03 17:55:05 +00:00
Nate Begeman
0d1a7b6737 Break SCEVExpander out of IndVarSimplify into its own .h/.cpp file so that 
other passes may use it.

llvm-svn: 22557
 2005-07-30 00:12:19 +00:00
Jeff Cohen
bd51ec7461 Eliminate all remaining tabs and trailing spaces. 
llvm-svn: 22523
 2005-07-27 06:12:32 +00:00
Andrew Lenharth
10f725f64b Remove glibc specific functions, and mark a couple as C99 
llvm-svn: 22384
 2005-07-11 20:35:20 +00:00
Andrew Lenharth
8089fbc902 because on alpha: 
#   define errno (*__errno_location ())

*shakes head

llvm-svn: 22383
 2005-07-11 17:41:12 +00:00
Andrew Lenharth
4e1c8055ea the correct fix was to fix AliasAnalysis.getModRefInfo 
llvm-svn: 22268
 2005-06-20 15:25:22 +00:00
Andrew Lenharth
262b657737 prevent GCSE from forwarding stores to loads around vaarg. This is uggly, and I am trying to fix the AliasInfo, as it should catch the problem instead. 
llvm-svn: 22266
 2005-06-20 15:02:05 +00:00
Andrew Lenharth
a9214fec08 core changes for varargs 
llvm-svn: 22254
 2005-06-18 18:34:52 +00:00
Chris Lattner
5a7f1642b7 By definition, 'tail' calls cannot access the stack frame of their caller. 
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 
llvm-svn: 21718
 2005-05-06 05:21:04 +00:00
Misha Brukman
d29b27d73b Remove extra blank line 
llvm-svn: 21706
 2005-05-05 23:43:47 +00:00
Chris Lattner
234ffe2395 Add llvm.sqrt intrinsic, patch contributed by Morten Ofstad 
llvm-svn: 21627
 2005-04-30 03:44:07 +00:00
Chris Lattner
fb0d0ea349 These functions can set errno! 
llvm-svn: 21609
 2005-04-28 21:52:31 +00:00
Chris Lattner
5dc0b9e938 Make interval partition print correctly, patch contributed by 
Vladimir Prus!

llvm-svn: 21566
 2005-04-26 14:48:28 +00:00
Chris Lattner
bab9c90db4 Correctly handle global-argument aliases induced in main 
llvm-svn: 21537
 2005-04-25 19:16:31 +00:00
Chris Lattner
e39652d21c Don't mess up SCC traversal when a node has null edges out of it. 
llvm-svn: 21536
 2005-04-25 19:16:17 +00:00
Chris Lattner
0bc1588c47 Propagate eq sets through the bu graphs to the cbu and eq graphs, fixing 
a crash of the sfv on 188.ammp

llvm-svn: 21478
 2005-04-23 21:11:05 +00:00
Chris Lattner
c638ca05a0 Malloc/Free have mod/ref effects. Do not allow CSE of function calls that 
call malloc/free.  This fixes PR555.

llvm-svn: 21443
 2005-04-22 05:36:59 +00:00
Misha Brukman
a9a1982a44 Convert tabs to spaces 
llvm-svn: 21439
 2005-04-22 04:01:18 +00:00
Misha Brukman
122d682689 Remove trailing whitespace 
llvm-svn: 21416
 2005-04-21 21:13:18 +00:00
Chris Lattner
9d2c6a3981 add support for taking and resolving the address of free. 
llvm-svn: 21396
 2005-04-21 16:09:43 +00:00
Chris Lattner
f8d9224d8c Fix a crash analyzing MultiSource/Benchmarks/MallocBench/gs 
llvm-svn: 21245
 2005-04-12 03:59:27 +00:00
Chris Lattner
49d166c6b6 Don't make this require loopsimplify. It works BETTER with loop simplify 
but should not require it.

llvm-svn: 21123
 2005-04-06 21:45:00 +00:00
Chris Lattner
c5b8fbe7f9 do not crash when using -debug 
llvm-svn: 21092
 2005-04-05 01:12:03 +00:00
Chris Lattner
57ea4daa2e do not dereference an extra layer of pointers to determine if an external 
call can modify a memory location.  This fixes
test/Regression/Analysis/Andersens/modreftest.ll

llvm-svn: 21088
 2005-04-04 22:23:21 +00:00
Chris Lattner
0938200804 fix some VC compilation problems, thanks to Jeff C for pointing this out! 
llvm-svn: 21044
 2005-04-02 20:17:09 +00:00
Chris Lattner
e6d28e8aac EquivClassGraphs is now in DataStructure.h 
llvm-svn: 21042
 2005-04-02 20:08:17 +00:00
Chris Lattner
54ab60f08d use a callee_iterator typedef. 
llvm-svn: 21038
 2005-04-02 20:02:41 +00:00