From: Bruno Turcksin <bruno.turcksin@gmail.com>
Date: Fri, 22 Nov 2024 21:02:06 +0000 (-0500)
Subject: Workaround rocm 5.7 compiler bug in debug mode
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a7fab0e7dd3818f28783cb32a4d1d25781d31c9;p=dealii.git

Workaround rocm 5.7 compiler bug in debug mode
---

diff --git a/source/grid/grid_out.cc b/source/grid/grid_out.cc
index 421013ae02..3e5d34603e 100644
--- a/source/grid/grid_out.cc
+++ b/source/grid/grid_out.cc
@@ -2139,7 +2139,13 @@ GridOut::write_svg(const Triangulation<2, 2> &tria, std::ostream &out) const
           double h;
 
           if (n != 1)
-            h = .6 - (index / (n - 1.)) * .6;
+            {
+              // The assert is a workaround a compiler bug in ROCm 5.7 which
+              // evaluated index/(n-1) when n == 1 in debug mode. When adding
+              // the assert the ratio is not evaluated.
+              Assert((n - 1.) != 0., ExcInvalidState());
+              h = .6 - (index / (n - 1.)) * .6;
+            }
           else
             h = .6;