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12 Commits

Author SHA1 Message Date
Craig Topper
f803e4fd66 [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 
llvm-svn: 206356
 2014-04-16 04:21:27 +00:00
NAKAMURA Takumi
55ef5181aa LiveRangeCalc.h: Update a description corresponding to r192396. [-Wdocumentation] 
llvm-svn: 192421
 2013-10-11 04:52:03 +00:00
Matthias Braun
ace00a09c8 Work on LiveRange instead of LiveInterval where possible 
Also change some pointer arguments to references at some places where
0-pointers are not allowed.

llvm-svn: 192396
 2013-10-10 21:28:57 +00:00
Benjamin Kramer
23f676e21d 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.

llvm-svn: 190536
 2013-09-11 18:05:11 +00:00
Benjamin Kramer
386bd314a1 Give internal classes hidden visibility. 
Worth 100k on a linux/x86_64 Release+Asserts clang.

llvm-svn: 190534
 2013-09-11 17:42:27 +00:00
Jakob Stoklund Olesen
28d8a03220 Remove declaration of nonexistant function. 
Patch by Matthias Braun!

llvm-svn: 188390
 2013-08-14 17:28:44 +00:00
Jakob Stoklund Olesen
c82bf59288 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.

llvm-svn: 175685
 2013-02-20 23:08:26 +00:00
Jakob Stoklund Olesen
70ab9a6638 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.

llvm-svn: 160207
 2012-07-13 23:39:05 +00:00
Jakob Stoklund Olesen
2ea0fd4346 Implement LiveRangeCalc::extendToUses() and createDeadDefs(). 
These LiveRangeCalc methods are to be used when computing a live range
from scratch.

llvm-svn: 158027
 2012-06-05 21:54:09 +00:00
Jakob Stoklund Olesen
066df8f22f Pass context pointers to LiveRangeCalc::reset(). 
Remove the same pointers from all the other LiveRangeCalc functions,
simplifying the interface.

llvm-svn: 157941
 2012-06-04 18:21:16 +00:00
NAKAMURA Takumi
545ef2a09a Unbreak msvc. 
llvm-svn: 139581
 2011-09-13 03:58:34 +00:00
Jakob Stoklund Olesen
198a5a56f2 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.

llvm-svn: 139572
 2011-09-13 01:34:21 +00:00