llvm-6502/lib/Transforms
Hal Finkel fc3b7bbf49 UpdatePHINodes in BasicBlockUtils should not crash on duplicate predecessors
UpdatePHINodes has an optimization to reuse an existing PHI node, where it
first deletes all of its entries and then replaces them. Unfortunately, in the
case where we had duplicate predecessors (which are allowed so long as the
associated PHI entries have the same value), the loop removing the existing PHI
entries from the to-be-reused PHI would assert (if that PHI was not the one
which had the duplicates).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192001 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-04 23:41:05 +00:00
..
Hello First check in. Modified a comment. 2013-09-27 07:36:10 +00:00
InstCombine Pull fptrunc's upwards through selects when one of the select's selectands was a constant. This has a number of benefits, including producing small immediates (easier to materialize, smaller constant pools) as well as being more likely to allow the fptrunc to fuse with a preceding instruction (truncating selects are unusual). 2013-10-03 21:08:05 +00:00
Instrumentation Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
IPO Optimize linkonce_odr unnamed_addr functions during LTO. 2013-10-03 18:29:09 +00:00
ObjCARC Revert "Give internal classes hidden visibility." 2013-09-11 18:05:11 +00:00
Scalar StructurizeCFG: Add dependency on LowerSwitch pass 2013-10-02 17:04:59 +00:00
Utils UpdatePHINodes in BasicBlockUtils should not crash on duplicate predecessors 2013-10-04 23:41:05 +00:00
Vectorize SLPVectorizer: Sort inputs to commutative binary operations 2013-10-04 20:39:16 +00:00
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