AuroraMiddleware/qt5base-lts
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

qfloat16: suppress the tables if FP16 is supported by the CPU

Browse Source 
If QtCore is being compiled to a system with FP16 support, then all
applications are too and, therefore, we don't need the tables. Saves 12k
of read-only data.

Change-Id: I46363e5b8944459e8c48fffd158bb53d906df297
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
This commit is contained in:
Thiago Macieira 2019-03-13 20:22:52 -07:00
parent eb25acc05b
commit 9649c41ed9
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/tools/qfloat16-tables/gen_qfloat16_tables.cpp
View File

@ -79,6 +79,7 @@ qint32 main(qint32 argc, char **argv)
fid.write("#include <QtCore/qfloat16.h>\n\n");
fid.write("QT_BEGIN_NAMESPACE\n\n");
fid.write("#if !defined(__F16C__) && !defined(__ARM_FP16_FORMAT_IEEE)\n\n");
fid.write("const quint32 qfloat16::mantissatable[2048] = {\n");
fid.write("0,\n");
@ -155,6 +156,7 @@ qint32 main(qint32 argc, char **argv)
fid.write("};\n\n");
fid.write("#endif // !__F16C__ && !__ARM_FP16_FORMAT_IEEE\n\n");
fid.write("QT_END_NAMESPACE\n");
fid.close();
return 0;