Commit Graph

1282 Commits

Author SHA1 Message Date
Chris Lattner
4b5086cc71 post-dom-frontiers requires proper post-dominance
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24409 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 07:28:26 +00:00
Andrew Lenharth
f6947c1bb8 prevent cse of readcyclecounter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24303 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-11 19:02:54 +00:00
Andrew Lenharth
51b8d54922 continued readcyclecounter support
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24300 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-11 16:47:30 +00:00
Chris Lattner
df14a04b5c 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24102 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-30 06:24:33 +00:00
Chris Lattner
eb99bd30e9 remove a dead file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24085 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-29 04:43:38 +00:00
John Criswell
bd9d37026a Move some constant folding functions into LLVMAnalysis since they are used
by Analysis and Transformation passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24038 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-27 16:00:10 +00:00
John Criswell
a115643357 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24036 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-27 15:54:34 +00:00
Chris Lattner
f941a0fe6c Remove this pass, it is not useful
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23949 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-24 02:35:43 +00:00
Chris Lattner
f36aeedaa3 DONT_BUILD_RELINKED is gone and implied by BUILD_ARCHIVE now
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23940 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-24 02:26:13 +00:00
Chris Lattner
ab0ed3592b Only build .a file versions of these libraries, instead of .a and .o versions.
This should speed up build times.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23933 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-24 01:59:48 +00:00
Chris Lattner
83753937a6 don't bother building the archive version of this library
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23927 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-24 01:08:20 +00:00
Chris Lattner
4fb1b21b31 expose a ctor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23924 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-24 01:00:45 +00:00
Chris Lattner
6d796238b2 implement some prototypes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23920 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-24 00:38:38 +00:00
Chris Lattner
25d196880b move this to the analyze tool
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23918 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-24 00:27:36 +00:00
Chris Lattner
bed21de39b wrap a long line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23507 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:30:58 +00:00
Chris Lattner
b6a69e70e0 Add a new getLoopLatch() method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23315 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-12 17:03:55 +00:00
Chris Lattner
ab466d769a floor/ceil don't read/write memory. This allows gcse to eliminate 6 calls
in mesa.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23015 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 16:58:56 +00:00
Chris Lattner
ff2006aa74 Fix Transforms/LoopStrengthReduce/2005-08-15-AddRecIV.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22797 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-16 00:37:01 +00:00
Chris Lattner
db25de496c Teach LLVM to know how many times a loop executes when constructed with
a < expression, e.g.: for (i = m; i < n; ++i)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22793 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-15 23:33:51 +00:00
Chris Lattner
05bd374b1f Fix an obvious oops
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22742 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-10 00:59:40 +00:00
Chris Lattner
a0740fbcc7 implement two helper methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22736 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-09 23:36:33 +00:00
Misha Brukman
e2d7fdf62c * Unbreak optimized build (noticed by Eric van Riet Paap)
* Comment #endif clauses for readability


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22646 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04 14:16:48 +00:00
Chris Lattner
b06f677c53 add support for Graphviz when viewing CFGs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22620 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-03 17:55:05 +00:00
Nate Begeman
36f891bdf6 Break SCEVExpander out of IndVarSimplify into its own .h/.cpp file so that
other passes may use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22557 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 00:12:19 +00:00
Jeff Cohen
00b16889ab Eliminate all remaining tabs and trailing spaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22523 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 06:12:32 +00:00
Andrew Lenharth
d3513e026b Remove glibc specific functions, and mark a couple as C99
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22384 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-11 20:35:20 +00:00
Andrew Lenharth
d9793e6c0a because on alpha:
#   define errno (*__errno_location ())

*shakes head


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22383 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-11 17:41:12 +00:00
Andrew Lenharth
c826aea982 the correct fix was to fix AliasAnalysis.getModRefInfo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22268 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-20 15:25:22 +00:00
Andrew Lenharth
e3e1739b7d 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22266 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-20 15:02:05 +00:00
Andrew Lenharth
558bc88a00 core changes for varargs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22254 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-18 18:34:52 +00:00
Chris Lattner
42e3c81c5f 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21796 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 23:58:12 +00:00
Chris Lattner
998fffdda1 These intrinsics do not access memory
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21718 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-06 05:21:04 +00:00
Misha Brukman
f4f85998bf Remove extra blank line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21706 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-05 23:43:47 +00:00
Chris Lattner
eed37bad01 Add llvm.sqrt intrinsic, patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21627 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 03:44:07 +00:00
Chris Lattner
5b103c20e3 These functions can set errno!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21609 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 21:52:31 +00:00
Chris Lattner
318c149823 Make interval partition print correctly, patch contributed by
Vladimir Prus!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21566 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-26 14:48:28 +00:00
Chris Lattner
a1198b5254 Correctly handle global-argument aliases induced in main
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21537 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-25 19:16:31 +00:00
Chris Lattner
63320cc841 Don't mess up SCC traversal when a node has null edges out of it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21536 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-25 19:16:17 +00:00
Chris Lattner
cc1f24585e Propagate eq sets through the bu graphs to the cbu and eq graphs, fixing
a crash of the sfv on 188.ammp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21478 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-23 21:11:05 +00:00
Chris Lattner
3fe4d3cb5b Malloc/Free have mod/ref effects. Do not allow CSE of function calls that
call malloc/free.  This fixes PR555.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21443 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-22 05:36:59 +00:00
Misha Brukman
dedf2bd5a3 Convert tabs to spaces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21439 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-22 04:01:18 +00:00
Misha Brukman
fd93908ae8 Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21427 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 23:48:37 +00:00
Misha Brukman
2b37d7cf28 Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21416 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 21:13:18 +00:00
Chris Lattner
a5ed1bd00b add support for taking and resolving the address of free.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21396 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 16:09:43 +00:00
Chris Lattner
af2e3e0859 Fix a crash analyzing MultiSource/Benchmarks/MallocBench/gs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21245 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-12 03:59:27 +00:00
Chris Lattner
6128690c62 Don't make this require loopsimplify. It works BETTER with loop simplify
but should not require it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21123 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-06 21:45:00 +00:00
Chris Lattner
bd135c7706 do not crash when using -debug
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21092 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-05 01:12:03 +00:00
Chris Lattner
8a9763c3cd 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21088 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-04 22:23:21 +00:00
Chris Lattner
1231aa3fa6 fix some VC compilation problems, thanks to Jeff C for pointing this out!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21044 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-02 20:17:09 +00:00
Chris Lattner
0700123431 EquivClassGraphs is now in DataStructure.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21042 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-02 20:08:17 +00:00