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Diffstat (limited to '!NotAdopted/SmartAutoReplier/AggressiveOptimize.h')
-rw-r--r-- | !NotAdopted/SmartAutoReplier/AggressiveOptimize.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/!NotAdopted/SmartAutoReplier/AggressiveOptimize.h b/!NotAdopted/SmartAutoReplier/AggressiveOptimize.h new file mode 100644 index 0000000000..076d96d920 --- /dev/null +++ b/!NotAdopted/SmartAutoReplier/AggressiveOptimize.h @@ -0,0 +1,59 @@ +
+//////////////////////////////
+// Version 1.10
+// Jan 23rd, 2000
+// Version 1.00
+// May 20th, 1999
+// Todd C. Wilson, Fresh Ground Software
+// (todd@nopcode.com)
+// This header file will kick in settings for Visual C++ 5 and 6 that will (usually)
+// result in smaller exe's.
+// The "trick" is to tell the compiler to not pad out the function calls; this is done
+// by not using the /O1 or /O2 option - if you do, you implicitly use /Gy, which pads
+// out each and every function call. In one single 500k dll, I managed to cut out 120k
+// by this alone!
+// The other two "tricks" are telling the Linker to merge all data-type segments together
+// in the exe file. The relocation, read-only (constants) data, and code section (.text)
+// sections can almost always be merged. Each section merged can save 4k in exe space,
+// since each section is padded out to 4k chunks. This is very noticable with smaller
+// exes, since you could have only 700 bytes of data, 300 bytes of code, 94 bytes of
+// strings - padded out, this could be 12k of runtime, for 1094 bytes of stuff!
+// Note that if you're using MFC static or some other 3rd party libs, you may get poor
+// results with merging the readonly (.rdata) section - the exe may grow larger.
+// To use this feature, define _MERGE_DATA_ in your project or before this header is used.
+// With Visual C++ 5, the program uses a file alignement of 512 bytes, which results
+// in a small exe. Under VC6, the program instead uses 4k, which is the same as the
+// section size. The reason (from what I understand) is that 4k is the chunk size of
+// the virtual memory manager, and that WinAlign (an end-user tuning tool for Win98)
+// will re-align the programs on this boundary. The problem with this is that all of
+// Microsoft's system exes and dlls are not tuned like this, and using 4k causes serious
+// exe bloat. Very noticable for smaller programs.
+// The "trick" for this is to use the undocumented FILEALIGN linker parm to change the
+// padding from 4k to 1/2k, which results in a much smaller exe - anywhere from 20%-75%
+// depending on the size.
+
+
+#ifdef NDEBUG
+#pragma message( "Using AggressiveOptimise" )
+// /Og (global optimizations), /Os (favor small code), /Oy (no frame pointers)
+#pragma optimize("gsy",on)
+
+#pragma comment(linker,"/RELEASE")
+
+// Note that merging the .rdata section will result in LARGER exe's if you using
+// MFC (esp. static link). If this is desirable, define _MERGE_RDATA_ in your project.
+#ifdef _MERGE_RDATA_
+#pragma comment(linker,"/merge:.rdata=.data")
+#endif // _MERGE_RDATA_
+
+#pragma comment(linker,"/merge:.text=.data")
+//#pragma comment(linker,"/merge:.reloc=.data")
+
+#if _MSC_VER >= 1000
+// Only supported/needed with VC6; VC5 already does 0x200 for release builds.
+// Totally undocumented! And if you set it lower than 512 bytes, the program crashes.
+// Either leave at 0x200 or 0x1000
+#pragma comment(linker,"/FILEALIGN:0x200")
+#endif // _MSC_VER >= 1000
+
+#endif // NDEBUG
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