http://llvm.org/bugs/show_bug.cgi?id=6305
Summary: Jump threading creates blockaddress of entry block
Product: new-bugs
Version: unspecified
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
$ opt -jump-threading baddress.ll -disable-output
blockaddress may not be used with the entry block!
label %"17"
Broken module found, compilation aborted!
This is a recent regression. Testcase reduced from linux kernel module
handling code.
define void @module_add_modinfo_attrs() nounwind {
entry:
br label %"17"
"17": ; preds = %entry
call void undef(i64 ptrtoint (i8* blockaddress(@module_add_modinfo_attrs,
%"17") to i64), i8* undef, i64 384, i64 undef, i32 32976) nounwind
unreachable
}
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