http://llvm.org/bugs/show_bug.cgi?id=14703
Bug #: 14703
Summary: ScalarEvolution cannot detect the iteration count of a
simple reverse loop.
Product: libraries
Version: trunk
Platform: PC
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P
Component: Loop Optimizer
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
SCEV can't detect the iteration count of the following loop (example21 from
gcc-loops). As a result the loop vectorizer can't vectorize it. It can handle
reverse loops that end at zero.
for (i = n-1; i >= 0; i--)
a += b[i];
--
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.
_______________________________________________
LLVMbugs mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
