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* Modify the LLVM assembly output so that it uses references to represent ↵Bill Wendling2013-02-201-1/+3
| | | | | | | | | | | function attributes. This makes the LLVM assembly look better. E.g.: define void @foo() #0 { ret void } attributes #0 = { nounwind noinline ssp } llvm-svn: 175605
* Make LoopSimplify change conditional branches in loop exiting blocksDan Gohman2010-02-251-0/+65
which branch on undef to branch on a boolean constant for the edge exiting the loop. This helps ScalarEvolution compute trip counts for loops. Teach ScalarEvolution to recognize single-value PHIs, when safe, and ForgetSymbolicName to forget such single-value PHI nodes as apprpriate in ForgetSymbolicName. llvm-svn: 97126
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