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12 Commits

Author SHA1 Message Date
Craig Topper
695aa80f07 [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206356 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-04-16 04:21:27 +00:00
NAKAMURA Takumi
3b9c5eb589 LiveRangeCalc.h: Update a description corresponding to r192396. [-Wdocumentation] 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192421 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-11 04:52:03 +00:00
Matthias Braun
e25dde550b Work on LiveRange instead of LiveInterval where possible 
Also change some pointer arguments to references at some places where
0-pointers are not allowed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192396 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-10 21:28:57 +00:00
Benjamin Kramer
55c06ae7af Revert "Give internal classes hidden visibility." 
It works with clang, but GCC has different rules so we can't make all of those
hidden. This reverts commit r190534.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190536 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-09-11 18:05:11 +00:00
Benjamin Kramer
15f387c93e Give internal classes hidden visibility. 
Worth 100k on a linux/x86_64 Release+Asserts clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190534 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-09-11 17:42:27 +00:00
Jakob Stoklund Olesen
15d737b855 Remove declaration of nonexistant function. 
Patch by Matthias Braun!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188390 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-14 17:28:44 +00:00
Jakob Stoklund Olesen
beda6ab879 Copy single reaching defs directly into the LiveInterval. 
When findReachingDefs() finds that only one value can reach the basic
block, just copy the work list of visited blocks directly into the live
interval.

Sort the block list and use a LiveRangeUpdater to make the bulk add
fast.

When multiple reaching defs are found, transfer the work list to the
updateSSA() work list as before. Also use LiveRangeUpdater in
updateLiveIns() following updateSSA().

This makes live interval analysis more than 3x faster on one huge test
case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175685 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-02-20 23:08:26 +00:00
Jakob Stoklund Olesen
c8981f2e3d Be more verbose when detecting dominance problems. 
Catch uses of undefined physregs that haven't been added to basic block
live-in lists. Run the verifier to pinpoint the problem.

Also run the verifier when a virtual register use is not jointly
dominated by defs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160207 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-13 23:39:05 +00:00
Jakob Stoklund Olesen
4e53a40ea3 Implement LiveRangeCalc::extendToUses() and createDeadDefs(). 
These LiveRangeCalc methods are to be used when computing a live range
from scratch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158027 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 21:54:09 +00:00
Jakob Stoklund Olesen
631390e3c2 Pass context pointers to LiveRangeCalc::reset(). 
Remove the same pointers from all the other LiveRangeCalc functions,
simplifying the interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157941 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 18:21:16 +00:00
NAKAMURA Takumi
edd4f8ba4b Unbreak msvc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139581 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-13 03:58:34 +00:00
Jakob Stoklund Olesen
b5a457c4cb Extract live range calculations from SplitKit. 
SplitKit will soon need two copies of these data structures, and the
algorithms will also be useful when LiveIntervalAnalysis becomes
independent of LiveVariables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139572 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-13 01:34:21 +00:00