http://llvm.org/bugs/show_bug.cgi?id=22099
Bug ID: 22099
Summary: Locals have no debug location even when live at O2
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Common Code Generator Code
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 13632
--> http://llvm.org/bugs/attachment.cgi?id=13632&action=edit
Sample source
In the attached source, compiled with -O2 -g on x86-64 Linux, the local
variable "op" is live for at least several instructions, but the debug info
shows no location for it. We ought to be able to keep track of that.
The local "delta" is live for one instruction, but also has no location in
the debug info. That one seems a little iffier but seemed worth mentioning.
I won't have time to look at this for a while, so I figured I'd post the
bug in case somebody else got inspired. Source and .s attached.
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