[llvm-dev] Debug info interacting with optimization and code generation

Greg Bedwell via llvm-dev llvm-dev at lists.llvm.org
Fri Nov 11 13:56:30 PST 2016

FWIW, the fix that Rob has just added a patch for (
https://reviews.llvm.org/D26554 ) fixes a case of debug info affecting
optimization, found using the utils/check_cfc tool from Russ's presentation
below on a large game codebase.

> At Sony we have an internal test run that compares generated code
> with/without –g, in our suite of regression tests.  See our lightning talk
> slides from EuroLLVM 2015.  I believe we list some PRs in there for things
> we have found and fixed in the past.
> http://llvm.org/devmtg/2015-04/slides/Verifying_code_gen_dash_g_final.pdf
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