http://llvm.org/bugs/show_bug.cgi?id=21078
Bug ID: 21078
Summary: [LoopVectorize] LLVM crashes for
'-fslp-vectorize-aggressive'
Product: new-bugs
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 13092
--> http://llvm.org/bugs/attachment.cgi?id=13092&action=edit
Reduced failure case
Clang fails multiple LNT test suite cases after r217144, when compiled with
'-O3 -fslp-vectorize-aggressive', with error message 'Instruction does not
dominate all uses!'.
The cause is found out to be running CSE after loop vectorize pass may
fail(enabled in BBVectorizer). The bug is revealed due to the reordering of
SLP/BB vectorizer around loop vectorizer. A reduced test case is attached.
--
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
