Dan Gohman 578ccf81e5 When turning (ashr(shl(x, n), n)) into sext(trunc(x)), the width of the ...

type to truncate to should be the number of bits of the value that are
preserved, not the number that are clobbered with sign-extension.
This fixes regressions in ldecod.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69704 91177308-0d34-0410-b5e6-96231b3b80d8

2009-04-21 20:18:36 +00:00

..

Andersens

…

BasicAA

change this to test for an alias result more directly.

2009-03-16 18:28:27 +00:00

CallGraph

…

Dominators

…

GlobalsModRef

…

LoopInfo

…

PostDominators

…

ScalarEvolution

When turning (ashr(shl(x, n), n)) into sext(trunc(x)), the width of the

2009-04-21 20:18:36 +00:00