George Burgess IV 127a8ddf85 [MemorySSA] Consider def-only BBs for live-in calculations. ...

If we have a BB with only MemoryDefs, live-in calculations will ignore
it. This means we get results like this:

define void @foo(i8* %p) {
  ; 1 = MemoryDef(liveOnEntry)
  store i8 0, i8* %p
  br i1 undef, label %if.then, label %if.end

if.then:
  ; 2 = MemoryDef(1)
  store i8 1, i8* %p
  br label %if.end

if.end:
  ; 3 = MemoryDef(1)
  store i8 2, i8* %p
  ret void
}

...When there should be a MemoryPhi in the `if.end` BB.

This patch fixes that behavior.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263991 91177308-0d34-0410-b5e6-96231b3b80d8

2016-03-21 21:25:39 +00:00

..

Hello

Remove autoconf support

2016-01-26 21:29:08 +00:00

InstCombine

[InstCombine] Don't insert instructions before a catch switch

2016-03-19 04:39:52 +00:00

Instrumentation

[sancov] clang-formatting SanitizerCoverage.cpp and fully pleasing clang-tidy.

2016-03-18 23:29:29 +00:00

IPO

Rework linkInModule(), making it oblivious to ThinLTO

2016-03-19 00:40:31 +00:00

ObjCARC

ADT: Remove == and != comparisons between ilist iterators and pointers

2016-02-21 20:39:50 +00:00

Scalar

[LoopDataPrefetch] Add TTI to limit the number of iterations to prefetch ahead

2016-03-18 00:27:43 +00:00

Utils

[MemorySSA] Consider def-only BBs for live-in calculations.

2016-03-21 21:25:39 +00:00

Vectorize

[SLP] Remove unnecessary member variables by using container APIs.

2016-03-21 19:47:44 +00:00

CMakeLists.txt

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LLVMBuild.txt

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