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82374f6b8a
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Philip Reames 82374f6b8a [RewriteStatepointsForGC] Preprocess the IR to remove unreachable blocks and single entry phis 
Two related small changes:

    Various dominance based queries about liveness can get confused if we're talking about unreachable blocks. To avoid reasoning about such cases, just remove them before rewriting statepoints.
    Remove single entry phis (likely left behind by LCSSA) to reduce the number of live values.

Both of these are motivated by http://reviews.llvm.org/D8674 which will be submitted shortly.

Differential Revision: http://reviews.llvm.org/D8675



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234651 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-10 22:07:04 +00:00
autoconf Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310. 2015-04-01 11:46:15 +00:00
bindings Go bindings: make various DIBuilder arguments optional. 2015-04-08 20:18:57 +00:00
cmake Disable all link optimizations in a debug build. 2015-04-06 15:04:31 +00:00
docs [lib/Fuzzer] Section: How good is my fuzzer? 2015-04-10 06:32:29 +00:00
examples llvm/examples/BrainF: Give an explicit pointee type to ConstantExpr::getGetElementPtr(ty...), according to r233938. 2015-04-02 22:44:00 +00:00
include [InstCombine][CodeGenPrep] Create llvm.uadd.with.overflow in CGP. 2015-04-10 21:07:09 +00:00
lib [RewriteStatepointsForGC] Preprocess the IR to remove unreachable blocks and single entry phis 2015-04-10 22:07:04 +00:00
projects
test [RewriteStatepointsForGC] Preprocess the IR to remove unreachable blocks and single entry phis 2015-04-10 22:07:04 +00:00
tools Simplify use of formatted_raw_ostream. 2015-04-09 21:06:08 +00:00
unittests IR: Remove MDTupleTypedArrayWrapper::operator MDTuple*() 2015-04-07 16:50:39 +00:00
utils Reduce dyn_cast<> to isa<> or cast<> where possible. 2015-04-10 11:24:51 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Ignore compile_commands.json only at the root of the tree. 2015-03-26 18:55:42 +00:00
CMakeLists.txt Enable W4 warnings by default for MSVC builds 2015-04-07 19:01:01 +00:00
CODE_OWNERS.TXT Tom is also responsible for the 3.6 branch. 2015-03-16 18:15:27 +00:00
configure Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310. 2015-04-01 11:46:15 +00:00
CREDITS.TXT
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310. 2015-04-01 11:46:15 +00:00
Makefile.rules
README.txt Revert test commit at revision 233535. 2015-03-30 12:39:03 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

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Please see the documentation provided in docs/ for further
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