Commit Graph

1496 Commits

Author SHA1 Message Date
Dale Johannesen
ab89ff7841 Reapply 101503+101520. These are "obviously correct" [Chris]
and don't cause any problems on Darwin.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101584 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17 00:08:21 +00:00
Dan Gohman
5b13a1a4c3 Revert 101520, which depended on 101503, which was reverted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101528 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 19:36:41 +00:00
Duncan Sands
f72a53db44 Revert commit 101503 (johannes), in the hope of fixing the dragonegg build,
see http://google1.osuosl.org:8011/builders/dragonegg-x86_64-linux/builds/693
Original commit text:
Use a ValueMap not a std::map for the reason indicated
in the comment.  This was causing nondeterministic changes
in inlining decisions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101525 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 19:28:59 +00:00
Dan Gohman
899dd9be7f Trim a #include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101520 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 18:45:11 +00:00
Dale Johannesen
d4ed2a8636 Use a ValueMap not a std::map for the reason indicated
in the comment.  This was causing nondeterministic changes
in inlining decisions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101503 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 18:16:08 +00:00
Dan Gohman
52d55bd224 Make callIsSmall accessible as a utility function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101463 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 15:14:50 +00:00
Dan Gohman
005752bbe7 Make getPredecessorWithUniqueSuccessorForBB return the unique successor
in addition to the predecessor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101374 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15 16:19:08 +00:00
Dan Gohman
0a60fa3321 Constify GetConstantStringInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101298 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14 22:20:45 +00:00
Dan Gohman
53c66eacc4 Enhance ScalarEvolution::isKnownPredicate with support for
loop conditions which are invariants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100995 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-11 22:16:48 +00:00
Dan Gohman
e48172710b Fix a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100992 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-11 22:07:56 +00:00
Dan Gohman
d908bbf727 Fix a #include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100980 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-11 19:27:52 +00:00
Dan Gohman
3948d0b8b0 Rename isLoopGuardedByCond to isLoopEntryGuardedByCond, to emphasise
that it's only testing for the entry condition, not full loop-invariant
conditions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100979 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-11 19:27:13 +00:00
Dan Gohman
113902e9fb Add a -lint pass which checks for common sources of undefined or likely
unintended behavior.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100798 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08 18:47:09 +00:00
Dan Gohman
88ccf742a3 Fix a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100783 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08 17:41:04 +00:00
Dan Gohman
448db1cdef Generalize IVUsers to track arbitrary expressions rather than expressions
explicitly split into stride-and-offset pairs. Also, add the
ability to track multiple post-increment loops on the same expression.

This refines the concept of "normalizing" SCEV expressions used for
to post-increment uses, and introduces a dedicated utility routine for
normalizing and denormalizing expressions.

This fixes the expansion of expressions which are post-increment users
of more than one loop at a time. More broadly, this takes LSR another
step closer to being able to reason about more than one loop at a time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100699 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07 22:27:08 +00:00
David Greene
5c8aa950fe Ok, third time's the charm. No changes from last time except the CMake
source addition.  Apparently the buildbots were wrong about failures.

---

Add some switches helpful for debugging:

-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation.  It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100249 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 23:17:14 +00:00
Chris Lattner
de4845c163 Switch the code generator (except the JIT) onto the new DebugLoc
representation.  This eliminates the 'DILocation' MDNodes for 
file/line/col tuples from -O0 -g codegen.

This remove the old DebugLoc class, making it a typedef for DebugLoc,
I'll rename NewDebugLoc next.

I didn't update the JIT to use the new apis, so it will continue to
work, but be as slow as before.  Someone should eventually do this
or, better yet, rip out the JIT debug info stuff and build the JIT
on top of MC.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100209 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 19:42:39 +00:00
Evan Cheng
cf5862d8ac Revert 100204. It broke a bunch of tests and apparently changed what passes are run during codegen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100207 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 19:29:15 +00:00
David Greene
434bd8551d Let's try this again. Re-apply 100143 including an apparent missing
<string> include.  For some reason the buildbot choked on this while my
builds did not.  It's probably due to a difference in system headers.

---

Add some switches helpful for debugging:

-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation.  It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100204 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 18:46:26 +00:00
Eric Christopher
1d8f83d0a0 Revert r100143.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100146 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-01 22:54:42 +00:00
David Greene
8ef3acba00 Add some switches helpful for debugging:
-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation.  It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100143 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-01 22:43:57 +00:00
Devang Patel
8fe7979c41 Do not rely on getCompileUnit() to find source file information for a subprogram.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24 18:48:00 +00:00
Dan Gohman
92d7b35bd0 Fix coding style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99362 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24 00:27:49 +00:00
Dan Gohman
66617633e7 Generalize findNearestCommonDominator to work on post-dominators,
based on a suggestion by Jochen Wilhelmy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99361 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24 00:22:24 +00:00
Dan Gohman
472fdf7090 Clear the SCEVExpander's insertion point after making deletions,
so that the SCEVExpander doesn't retain a dangling pointer as its
insert position. The dangling pointer in this case wasn't ever used
to insert new instructions, but it was causing trouble with
SCEVExpander's code for automatically advancing its insert position
past debug intrinsics.

This fixes use-after-free errors that valgrind noticed in
test/Transforms/IndVarSimplify/2007-06-06-DeleteDanglesPtr.ll and
test/Transforms/IndVarSimplify/exit_value_tests.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99036 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-20 03:53:53 +00:00
Dan Gohman
6c7ed6b549 Fix more places to more thoroughly ignore debug intrinsics. This fixes
use-before-def errors in SCEVExpander-produced code in sqlite3 when debug
info with optimization is enabled, though the testcases for this are
dependent on use-list order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99001 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 21:51:03 +00:00
Dan Gohman
c93b4cff89 Add the ability to "intern" FoldingSetNodeID data into a
BumpPtrAllocator-allocated region to allow it to be stored in a more
compact form and to avoid the need for a non-trivial destructor call.

Use this new mechanism in ScalarEvolution instead of
FastFoldingSetNode to avoid leaking memory in the case where a
FoldingSetNodeID uses heap storage, and to reduce overall memory
usage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98829 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 16:16:38 +00:00
Dan Gohman
f9e64729af Reapply r98755 with a thinko which miscompiled gengtype fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98793 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 01:17:13 +00:00
Dan Gohman
ebf78f18df Revert 98755, which may be causing trouble.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98762 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17 19:54:53 +00:00
Dan Gohman
0afc29c3e6 Change SCEVNAryExpr's operand array from a SmallVector to a plain
pointer and length, and allocate the arrays in ScalarEvolution's
BumpPtrAllocator, so that they get released when their owning
SCEV gets released. SCEVs are immutable, so they don't need to worry
about operand array resizing. This fixes a memory leak reported
in PR6637.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98755 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17 18:51:01 +00:00
Devang Patel
f96769bed2 Remove extra parameter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98403 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 00:45:31 +00:00
Devang Patel
cbd056074c Do not overestimate code size reduction in presense of debug info.
Use CodeMetrics.analyzeBasicBlock() to estimate BB size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 00:10:20 +00:00
Dan Gohman
bbf81d8811 Add a DominatorTree argument to isLCSSA so that it doesn't have to
compute a set of reachable blocks for itself each time it is called, which
is fairly frequently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98179 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 19:38:49 +00:00
Jakob Stoklund Olesen
f7477470d3 Try to keep the cached inliner costs around for a bit longer for big functions.
The Caller cost info would be reset everytime a callee was inlined. If the
caller has lots of calls and there is some mutual recursion going on, the
caller cost info could be calculated many times.

This patch reduces inliner runtime from 240s to 0.5s for a function with 20000
small function calls.

This is a more conservative version of r98089 that doesn't break the clang
test CodeGenCXX/temp-order.cpp. That test relies on rather extreme inlining
for constant folding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98099 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 23:02:17 +00:00
Jakob Stoklund Olesen
b5a158bab8 Revert r98089, it was breaking a clang test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98094 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 22:43:37 +00:00
Jakob Stoklund Olesen
9e5d87d568 Try to keep the cached inliner costs around for a bit longer for big functions.
The Caller cost info would be reset everytime a callee was inlined. If the
caller has lots of calls and there is some mutual recursion going on, the
caller cost info could be calculated many times.

This patch reduces inliner runtime from 240s to 0.5s for a function with 20000
small function calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98089 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 22:17:11 +00:00
Devang Patel
4b945500a5 Start using DIFile. See updated SourceLevelDebugging.html for more information.
This patch updates LLVMDebugVersion to 8.
Debug info descriptors encoded using LLVMDebugVersion 7 is supported.

Corresponding llvmgcc and clang FE commits are required.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98020 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 00:44:10 +00:00
Devang Patel
7aa8189706 Introduce DIFile. This will be used to represent header files and source file(s) in debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97994 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 22:27:22 +00:00
Devang Patel
77bf295dbb Derive DIType from DIScope. This simplifies getContext() where for members the context is a type. This also eliminates need of CompileUnitMaps maintained by dwarf writer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97990 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 22:02:50 +00:00
Devang Patel
f17f5ebbdc Remove DbgNode checks in constructor. Debug descriptors are intended to be light weight wrappers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97988 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 21:32:10 +00:00
Devang Patel
9dcd6f14f8 isNull() is not used any more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97979 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 21:00:27 +00:00
Devang Patel
3c91b05d2b Avoid using DIDescriptor.isNull().
This is a first step towards eliminating checks in Descriptor constructors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97975 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 20:52:55 +00:00
Devang Patel
0ef3fa6aab Revert r97947.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97963 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 19:20:38 +00:00
Devang Patel
d8cc5d5256 Avoid using DIDescriptor.isNull().
This is a first step towards eliminating unncessary constructor checks in light weight DIDescriptor wrappers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97947 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 18:25:48 +00:00
Tobias Grosser
8f9db4c1d5 Add findNearestCommonDominator() for PostDominators.
Add a missing interface to be able to call findNearestCommonDominator
for a PostDominanceTree. The function itself is already implemented in
DominatorTreeBase. The interface however was only added to the
DominatorTree class, but not the PostDominatorClass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97915 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07 11:15:04 +00:00
Eric Christopher
25ec483cfc Move GetStringLength and helper from SimplifyLibCalls to ValueTracking.
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97793 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05 06:58:57 +00:00
Chris Lattner
a9cf19670f remove anders-aa from mainline, it isn't maintained and is
tantalyzing enough that people keep trying to use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97483 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:24:17 +00:00
Dan Gohman
3f46a3abee Spelling fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97453 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 17:49:51 +00:00
Dan Gohman
67d9bf9dc4 Whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 17:47:21 +00:00
Dan Gohman
f6d009fb6f Convert a few more backedge-taken count functions to use BackedgeTakenInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97042 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 17:31:30 +00:00