[LLVMbugs] [Bug 14511] New: -O0 default of omitting frame pointers degrades debuggability of code
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Tue Dec 4 13:09:53 PST 2012
http://llvm.org/bugs/show_bug.cgi?id=14511
Bug #: 14511
Summary: -O0 default of omitting frame pointers degrades
debuggability of code
Product: clang
Version: unspecified
Platform: PC
OS/Version: All
Status: NEW
Keywords: googler
Severity: enhancement
Priority: P
Component: C++
AssignedTo: unassignedclangbugs at nondot.org
ReportedBy: dblaikie at gmail.com
CC: dgregor at apple.com, echristo at gmail.com,
llvmbugs at cs.uiuc.edu
Blocks: 14330
Classification: Unclassified
For now I'm running the GDB 7.5 test suite with clang forced stack frames on
(-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer) as this adversely
affects debuggability (gdb has some trouble printing local variables & breaks
in slightly different locations).
The specific severity of this issue is unclear, but I wanted to track this &
revisit it when we've got rid of the coarse-grained baselining in the GDB 7.5
suite & then we can try toggling these flags back & assess what breaks to see
if that's sufficient justification to change Clang's defaults or otherwise
address this issue.
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