http://llvm.org/bugs/show_bug.cgi?id=18068
Bug ID: 18068
Summary: DSE miscompile
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Scalar Optimizations
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 11614
--> http://llvm.org/bugs/attachment.cgi?id=11614&action=edit
bugpoint reduced test case
ClangBugs2/diff/t43047 from PR16431 is a DSE miscompile.
To reproduce:
opt -o o.bc -basicaa -dse bugpoint-tooptimize.bc
clang o.bc bugpoint-tonotoptimize.bc -o t
./t < input.txt
res = 1910
whereas running:
clang bugpoint-tooptimize.bc bugpoint-tonotoptimize.bc -o t
./t < input.txt
res = 2553
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