6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-10-25 10:27:04 +00:00
Code Issues Projects Releases Wiki Activity

Change ScalarEvolution::getSCEVAtScope to always return the original value

Browse Source 
in the case where a loop exit value cannot be computed, instead of only in
some cases while using SCEVCouldNotCompute in others. This simplifies
getSCEVAtScope's callers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72375 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-05-24 23:25:42 +00:00
parent c046c00d0a
commit d594e6f034
3 changed files with 12 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/llvm/Analysis/ScalarEvolution.h
View File

@@ -490,8 +490,8 @@ namespace llvm {
/// This method can be used to compute the exit value for a variable defined
/// in a loop by querying what the value will hold in the parent loop.
///
/// If this value is not computable at this scope, a SCEVCouldNotCompute
/// object is returned.
/// In the case that a relevant loop exit value cannot be computed, the
/// original value V is returned.
SCEVHandle getSCEVAtScope(const SCEV *S, const Loop *L);
/// getSCEVAtScope - This is a convenience function which does