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[Bug debug/43478] Missing DW_AT_location for a variable
- From: "aoliva at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Apr 2010 02:39:01 -0000
- Subject: [Bug debug/43478] Missing DW_AT_location for a variable
- References: <bug-43478-12292@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from aoliva at gcc dot gnu dot org 2010-04-22 02:39 -------
After much pondering, an idea that might fix this problem and many others hit
me: instead of just resetting debug stmts that refer to an earlier REG_DEAD,
emit a debug temp that binds to the reg before it dies, and refer to the debug
temp instead of to the REG. Then, if the value is still live or computable,
we'll still get to it. I'm going to give it a try.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43478