llvm-6502/lib/Transforms
Dan Gohman ca9b7037e2 Suppress LinearFunctionTestReplace when the computed backedge-taken
expression is a UDiv and it doesn't appear that the UDiv came from
the user's source.

ScalarEvolution has recently figured out how to compute a tripcount
expression for the inner loop in
SingleSource/Benchmarks/Shootout/sieve.c, using a udiv. Emitting a
udiv instruction dramatically slows down the enclosing loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101068 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12 21:13:43 +00:00
..
Hello Prune #includes. 2010-03-01 17:42:17 +00:00
InstCombine Minor code simplification. 2010-04-09 14:53:59 +00:00
Instrumentation Uniformize the names of type predicates: rather than having isFloatTy and 2010-02-15 16:12:20 +00:00
IPO Implement support for varargs functions without any fixed 2010-04-10 19:12:44 +00:00
Scalar Suppress LinearFunctionTestReplace when the computed backedge-taken 2010-04-12 21:13:43 +00:00
Utils Verify function prototypes before trying to optimize functions. We also 2010-04-12 04:48:00 +00:00
Makefile suck the propagating "has dynamic libs" check into a single makefile 2010-04-09 20:51:47 +00:00