From e11c6961b26bdca94b141bf0e60014115d491474 Mon Sep 17 00:00:00 2001
From: Allison Vacanti <alliepiper16@gmail.com>
Date: Wed, 13 Oct 2021 17:25:16 -0400
Subject: [PATCH] Revert .cu -> .cxx change for option_parser TU.

This change introduced a strange bug on GCC where a stack object is changed
seemingly randomly.

In `option_parser::update_axis`, the `flag` variable's `data()` pointer
is overwritten to point at garbage memory shortly after parsing. Nothing
related to this object is being updated when the corruption occurs.

This has been observed on gcc7+, but cannot be reproduced on MSVC.

Reverting the `option_parser.cxx` TU to be a CUDA object works
around this.

Fixes issue #36.
---
 nvbench/CMakeLists.txt                          | 2 +-
 nvbench/{option_parser.cxx => option_parser.cu} | 0
 2 files changed, 1 insertion(+), 1 deletion(-)
 rename nvbench/{option_parser.cxx => option_parser.cu} (100%)

diff --git a/nvbench/CMakeLists.txt b/nvbench/CMakeLists.txt
index a5e3cb2..af4ce5c 100644
--- a/nvbench/CMakeLists.txt
+++ b/nvbench/CMakeLists.txt
@@ -12,7 +12,7 @@ set(srcs
   int64_axis.cxx
   markdown_printer.cu
   named_values.cxx
-  option_parser.cxx
+  option_parser.cu
   printer_base.cxx
   printer_multiplex.cxx
   runner.cxx
diff --git a/nvbench/option_parser.cxx b/nvbench/option_parser.cu
similarity index 100%
rename from nvbench/option_parser.cxx
rename to nvbench/option_parser.cu