Closed Bug 450691 Opened 16 years ago Closed 11 years ago

SM: using -Wstrict-aliasing=2 by default in optimized builts

Categories

(Core :: JavaScript Engine, defect)

Product:
Core
Component:
JavaScript Engine
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED DUPLICATE of bug 657806

People

(Reporter: igor, Unassigned)

References

Details

The optimization level -Os, that is used when building with GCC an optimized version of SM, implies -fstrict-aliasing. To avoid any potential surprises leading to incorrect code due to improper aliasing we should consider passing -Wstrict-aliasing=2 when building the engine. 

This will report false positives (see bug 450392 comment 1), but with just -Wstrict-aliasing=1, enabled with -Wall, real bugs may not be reported by the compiler.

Another suggestion is to use -fstrict-aliasing -Wstrict-aliasing=2 with debug builds to have warning as early as possible.
See more recent discussion in bug 657806.
Status: NEW → RESOLVED
Closed: 11 years ago
Resolution: --- → DUPLICATE
You need to log in before you can comment on or make changes to this bug.