Remove the old code using MMX registers.

There are only 8 MMX registers, each 64-bit wide, and they alias the
x87 registers. The access to the MMX register cannot use the new
VEX-prefix instructions either.

All of the functions being replaced are either present in the
qdrawhelper_sse2.cpp and qdrawhelper_ssse3.cpp files, or the plain C++
function in qdrawhelper.cpp is vectorised when compiled with
-ftree-vectorize (enabled in -O3), if SSE2 support is enabled.

All x86-64 processors have SSE2, so this is a net improvement for
64-bit builds. For 32-bit builds, without further support this will
cause the code to use non-vector or x87 instructions, which aren't the
best. The solution will come in another commit.

Change-Id: I4a22d8a2516b79172867510202d0fd627db54807
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>

1 files changed, 0 insertions, 48 deletions

diff --git a/src/gui/gui.pro b/src/gui/gui.pro
index 29e233de12..198b588d9a 100644
--- a/src/gui/gui.pro
+++ b/src/gui/gui.pro
@@ -59,54 +59,6 @@ win32:!contains(QT_CONFIG, directwrite) {
 }
 
     win32-g++*|!win32:!win32-icc*:!macx-icc* {
-        mmx {
-            mmx_compiler.commands = $$QMAKE_CXX -c -Winline
-            mmx_compiler.commands += -mmmx
-            mmx_compiler.commands += $(CXXFLAGS) $(INCPATH) ${QMAKE_FILE_IN} -o ${QMAKE_FILE_OUT}
-            mmx_compiler.dependency_type = TYPE_C
-            mmx_compiler.output = ${QMAKE_VAR_OBJECTS_DIR}${QMAKE_FILE_BASE}$${first(QMAKE_EXT_OBJ)}
-            mmx_compiler.input = MMX_SOURCES
-            mmx_compiler.variable_out = OBJECTS
-            mmx_compiler.name = compiling[mmx] ${QMAKE_FILE_IN}
-            silent:mmx_compiler.commands = @echo compiling[mmx] ${QMAKE_FILE_IN} && $$mmx_compiler.commands
-            QMAKE_EXTRA_COMPILERS += mmx_compiler
-        }
-        3dnow {
-            mmx3dnow_compiler.commands = $$QMAKE_CXX -c -Winline
-            mmx3dnow_compiler.commands += -m3dnow -mmmx
-            mmx3dnow_compiler.commands += $(CXXFLAGS) $(INCPATH) ${QMAKE_FILE_IN} -o ${QMAKE_FILE_OUT}
-            mmx3dnow_compiler.dependency_type = TYPE_C
-            mmx3dnow_compiler.output = ${QMAKE_VAR_OBJECTS_DIR}${QMAKE_FILE_BASE}$${first(QMAKE_EXT_OBJ)}
-            mmx3dnow_compiler.input = MMX3DNOW_SOURCES
-            mmx3dnow_compiler.variable_out = OBJECTS
-            mmx3dnow_compiler.name = compiling[mmx3dnow] ${QMAKE_FILE_IN}
-            silent:mmx3dnow_compiler.commands = @echo compiling[mmx3dnow] ${QMAKE_FILE_IN} && $$mmx3dnow_compiler.commands
-            QMAKE_EXTRA_COMPILERS += mmx3dnow_compiler
-            sse {
-                sse3dnow_compiler.commands = $$QMAKE_CXX -c -Winline
-                sse3dnow_compiler.commands += -m3dnow -msse
-                sse3dnow_compiler.commands += $(CXXFLAGS) $(INCPATH) ${QMAKE_FILE_IN} -o ${QMAKE_FILE_OUT}
-                sse3dnow_compiler.dependency_type = TYPE_C
-                sse3dnow_compiler.output = ${QMAKE_VAR_OBJECTS_DIR}${QMAKE_FILE_BASE}$${first(QMAKE_EXT_OBJ)}
-                sse3dnow_compiler.input = SSE3DNOW_SOURCES
-                sse3dnow_compiler.variable_out = OBJECTS
-                sse3dnow_compiler.name = compiling[sse3dnow] ${QMAKE_FILE_IN}
-                silent:sse3dnow_compiler.commands = @echo compiling[sse3dnow] ${QMAKE_FILE_IN} && $$sse3dnow_compiler.commands
-                QMAKE_EXTRA_COMPILERS += sse3dnow_compiler
-            }
-        }
-        sse {
-            sse_compiler.commands = $$QMAKE_CXX -c -Winline
-            sse_compiler.commands += -msse
-            sse_compiler.commands += $(CXXFLAGS) $(INCPATH) ${QMAKE_FILE_IN} -o ${QMAKE_FILE_OUT}
-            sse_compiler.dependency_type = TYPE_C
-            sse_compiler.output = ${QMAKE_VAR_OBJECTS_DIR}${QMAKE_FILE_BASE}$${first(QMAKE_EXT_OBJ)}
-            sse_compiler.input = SSE_SOURCES
-            sse_compiler.variable_out = OBJECTS
-            sse_compiler.name = compiling[sse] ${QMAKE_FILE_IN}
-            silent:sse_compiler.commands = @echo compiling[sse] ${QMAKE_FILE_IN} && $$sse_compiler.commands
-            QMAKE_EXTRA_COMPILERS += sse_compiler
-        }
         sse2 {
             sse2_compiler.commands = $$QMAKE_CXX -c -Winline
             sse2_compiler.commands += -msse2