qfloat16: Check in the tables to Git

It's a 38k source file, which makes it MUCH smaller than other generated
files like qlocale_data_p.h (982k) and qunicodetables.cpp (718k). The
constants are platform-independent, since they are defined by IEEE 754,
so they will never change.

The generator tool is moved to util/ and removed from the build. That's
one fewer bootstrapped tool to have to worry about.

The output file is committed as .cpp so it won't get installed.

Fixes: QTBUG-76165
Change-Id: I2b1955a995ad40f3b89afffd15a3ded58dc3e35f
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

.gitignore

@@ -56,8 +56,6 @@ qt*-config.pri
 /src/angle/src/QtANGLE/libANGLE/
 /src/angle/src/libGLESv2/libANGLE/
 
-/src/corelib/global/qfloat16tables.cpp
-
 /examples/*/*/*
 !/examples/*/*/*[.]*
 !/examples/*/*/README

src/corelib/global/global.pri

@@ -40,6 +40,10 @@ SOURCES += \
         global/qrandom.cpp \
         global/qhooks.cpp
 
+# To get listed in IDEs
+false: SOURCES += \
+        global/qfloat16tables.cpp
+
 # Only add global/qfloat16_f16c.c if qfloat16.cpp can't #include it.
 # Any compiler: if it is already generating F16C code, let qfloat16.cpp do it
 # Clang: ICE if not generating F16C code, so use qfloat16_f16c.c
@@ -124,14 +128,3 @@ gcc:ltcg {
 } else {
     SOURCES += $$VERSIONTAGGING_SOURCES
 }
-
-QMAKE_QFLOAT16_TABLES_GENERATE = global/qfloat16.h
-
-qtPrepareTool(QMAKE_QFLOAT16_TABLES, qfloat16-tables)
-
-qfloat16_tables.commands = $$QMAKE_QFLOAT16_TABLES > ${QMAKE_FILE_OUT}
-qfloat16_tables.output = global/qfloat16tables.cpp
-qfloat16_tables.depends = $$QMAKE_QFLOAT16_TABLES_EXE
-qfloat16_tables.input = QMAKE_QFLOAT16_TABLES_GENERATE
-qfloat16_tables.variable_out = SOURCES
-QMAKE_EXTRA_COMPILERS += qfloat16_tables

src/corelib/global/qfloat16.cpp

@@ -239,6 +239,7 @@ Q_CORE_EXPORT void qFloatFromFloat16(float *out, const qfloat16 *in, qsizetype l
 
 QT_END_NAMESPACE
 
+#include "qfloat16tables.cpp"
 #ifdef QFLOAT16_INCLUDE_FAST
 #  include "qfloat16_f16c.c"
 #endif

src/src.pro

@@ -21,10 +21,6 @@ src_tools_rcc.subdir = tools/rcc
 src_tools_rcc.target = sub-rcc
 src_tools_rcc.depends = src_tools_bootstrap
 
-src_tools_qfloat16_tables.subdir = tools/qfloat16-tables
-src_tools_qfloat16_tables.target = sub-qfloat16-tables
-src_tools_qfloat16_tables.depends = src_tools_bootstrap
-
 src_tools_qlalr.subdir = tools/qlalr
 src_tools_qlalr.target = sub-qlalr
 force_bootstrap: src_tools_qlalr.depends = src_tools_bootstrap
@@ -72,7 +68,7 @@ src_winmain.depends = sub-corelib  # just for the module .pri file
 
 src_corelib.subdir = $$PWD/corelib
 src_corelib.target = sub-corelib
-src_corelib.depends = src_tools_moc src_tools_rcc src_tools_qfloat16_tables
+src_corelib.depends = src_tools_moc src_tools_rcc
 
 src_xml.subdir = $$PWD/xml
 src_xml.target = sub-xml
@@ -159,12 +155,12 @@ src_android.subdir = $$PWD/android
         src_3rdparty_freetype.depends += src_corelib
     }
 }
-SUBDIRS += src_tools_bootstrap src_tools_moc src_tools_rcc src_tools_qfloat16_tables
+SUBDIRS += src_tools_bootstrap src_tools_moc src_tools_rcc
 qtConfig(regularexpression):pcre2 {
     SUBDIRS += src_3rdparty_pcre2
     src_corelib.depends += src_3rdparty_pcre2
 }
-TOOLS = src_tools_moc src_tools_rcc src_tools_qlalr src_tools_qfloat16_tables
+TOOLS = src_tools_moc src_tools_rcc src_tools_qlalr
 !force_bootstrap:if(qtConfig(lttng)|qtConfig(etw)) {
     SUBDIRS += src_tools_tracegen
     src_corelib.depends += src_tools_tracegen

src/tools/qfloat16-tables/qfloat16-tables.pro

@@ -1,9 +0,0 @@
-option(host_build)
-
-CONFIG -= qt
-SOURCES += gen_qfloat16_tables.cpp
-
-load(qt_tool)
-
-lib.CONFIG = dummy_install
-INSTALLS = lib

util/qfloat16-tables/qfloat16-tables.pro

@@ -0,0 +1,2 @@
+QT = core
+SOURCES += gen_qfloat16_tables.cpp