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127a8ddf85
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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
bindings bindings/go: reinstate TargetMachine.TargetData 2016-03-15 05:04:06 +00:00
cmake cmake: include what you use 2016-03-08 18:56:00 +00:00
docs [libFuzzer] one more trophie 2016-03-19 01:05:33 +00:00
examples [PM] Update Kaleidoscope with the new header file. 2016-03-11 12:10:15 +00:00
include Revert "[llvm-objdump] Printing relocations in executable and shared object files. This partially reverts r215844 by removing test objdump-reloc-shared.test which stated GNU objdump doesn't print relocations, it does." 2016-03-21 20:59:15 +00:00
lib [MemorySSA] Consider def-only BBs for live-in calculations. 2016-03-21 21:25:39 +00:00
projects Remove autoconf support 2016-01-26 21:29:08 +00:00
resources
test [MemorySSA] Consider def-only BBs for live-in calculations. 2016-03-21 21:25:39 +00:00
tools Revert "[llvm-objdump] Printing relocations in executable and shared object files. This partially reverts r215844 by removing test objdump-reloc-shared.test which stated GNU objdump doesn't print relocations, it does." 2016-03-21 20:59:15 +00:00
unittests [Orc] Switch RPC Procedure to take a function type, rather than an arg list. 2016-03-21 16:56:25 +00:00
utils Typesafe visualization of PointerIntPairs in Visual Studio 2016-03-18 20:06:16 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt llvm-shlib: Remove the option to override __cxa_atexit 2016-03-14 21:54:45 +00:00
CODE_OWNERS.TXT Add self to CODE_OWNERS 2016-03-08 19:01:15 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
README.txt

README.txt 

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