http://llvm.org/bugs/show_bug.cgi?id=2613
Summary: Debugging labels are not being invalidated after opt
pass
Product: libraries
Version: trunk
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Common Code Generator Code
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
CC: [email protected]
Created an attachment (id=1871)
--> (http://llvm.org/bugs/attachment.cgi?id=1871)
Test case exhibiting a missing label referred to within debug info
Occasionally there seem to be labels popping up in the DWARF line number
information sections that have been removed from the code. The attached .ll
file when built with the following commands refers to a "label23" in the line
numbers but does not exist in code.
llvm-as -f -o=md5.bc md5.ll
opt -o=md5.opt.bc -f md5.bc -std-compile-opts
llc -asm-verbose -march=ppc64 -f -o=md5.s md5.opt.bc
This has been seen in both 2.3 and in the trunk as of revision 54223
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