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Allow optimizing memcpy and memset where possible

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Modern C runtimes have well optimized memset and memcpy, so use those instead of dispatching into SDL's versions. In addition, some compilers can analyze memset and memcpy calls and directly turn them into optimized assembly.
This commit is contained in:
Sam Lantinga
2024-01-20 08:12:11 -08:00
parent 8d25c2d260
commit 7a069cc4b0
16 changed files with 390 additions and 220 deletions
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12
Xcode/SDL/SDL.xcodeproj/project.pbxproj
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@@ -372,6 +372,9 @@
E4F7981C2AD8D85500669F54 /* SDL_dynapi_unsupported.h in Headers */ = {isa = PBXBuildFile; fileRef = E4F7981B2AD8D85500669F54 /* SDL_dynapi_unsupported.h */; };
E4F7981E2AD8D86A00669F54 /* SDL_render_unsupported.c in Sources */ = {isa = PBXBuildFile; fileRef = E4F7981D2AD8D86A00669F54 /* SDL_render_unsupported.c */; };
E4F798202AD8D87F00669F54 /* SDL_video_unsupported.c in Sources */ = {isa = PBXBuildFile; fileRef = E4F7981F2AD8D87F00669F54 /* SDL_video_unsupported.c */; };
F316ABD82B5C3185002EF551 /* SDL_memset.c in Sources */ = {isa = PBXBuildFile; fileRef = F316ABD62B5C3185002EF551 /* SDL_memset.c */; };
F316ABD92B5C3185002EF551 /* SDL_memcpy.c in Sources */ = {isa = PBXBuildFile; fileRef = F316ABD72B5C3185002EF551 /* SDL_memcpy.c */; };
F316ABDB2B5CA721002EF551 /* SDL_memmove.c in Sources */ = {isa = PBXBuildFile; fileRef = F316ABDA2B5CA721002EF551 /* SDL_memmove.c */; };
F31A92C828D4CB39003BFD6A /* SDL_offscreenopengles.h in Headers */ = {isa = PBXBuildFile; fileRef = F31A92C628D4CB39003BFD6A /* SDL_offscreenopengles.h */; };
F31A92D228D4CB39003BFD6A /* SDL_offscreenopengles.c in Sources */ = {isa = PBXBuildFile; fileRef = F31A92C728D4CB39003BFD6A /* SDL_offscreenopengles.c */; };
F32305FF28939F6400E66D30 /* SDL_hidapi_combined.c in Sources */ = {isa = PBXBuildFile; fileRef = F32305FE28939F6400E66D30 /* SDL_hidapi_combined.c */; };
@@ -878,6 +881,9 @@
E4F7981B2AD8D85500669F54 /* SDL_dynapi_unsupported.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SDL_dynapi_unsupported.h; sourceTree = "<group>"; };
E4F7981D2AD8D86A00669F54 /* SDL_render_unsupported.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = SDL_render_unsupported.c; sourceTree = "<group>"; };
E4F7981F2AD8D87F00669F54 /* SDL_video_unsupported.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = SDL_video_unsupported.c; sourceTree = "<group>"; };
F316ABD62B5C3185002EF551 /* SDL_memset.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = SDL_memset.c; sourceTree = "<group>"; };
F316ABD72B5C3185002EF551 /* SDL_memcpy.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = SDL_memcpy.c; sourceTree = "<group>"; };
F316ABDA2B5CA721002EF551 /* SDL_memmove.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = SDL_memmove.c; sourceTree = "<group>"; };
F31A92C628D4CB39003BFD6A /* SDL_offscreenopengles.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SDL_offscreenopengles.h; sourceTree = "<group>"; };
F31A92C728D4CB39003BFD6A /* SDL_offscreenopengles.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = SDL_offscreenopengles.c; sourceTree = "<group>"; };
F32305FE28939F6400E66D30 /* SDL_hidapi_combined.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = SDL_hidapi_combined.c; sourceTree = "<group>"; };
@@ -1941,6 +1947,9 @@
A7D8A8D423E2514000DCD162 /* SDL_getenv.c */,
A7D8A8D323E2514000DCD162 /* SDL_iconv.c */,
A7D8A8D923E2514000DCD162 /* SDL_malloc.c */,
F316ABD72B5C3185002EF551 /* SDL_memcpy.c */,
F316ABDA2B5CA721002EF551 /* SDL_memmove.c */,
F316ABD62B5C3185002EF551 /* SDL_memset.c */,
A7D8A8D723E2514000DCD162 /* SDL_qsort.c */,
A7D8A8D823E2514000DCD162 /* SDL_stdlib.c */,
A7D8A8D523E2514000DCD162 /* SDL_string.c */,
@@ -2559,6 +2568,7 @@
A7D8B9DD23E2514400DCD162 /* SDL_blendpoint.c in Sources */,
A7D8B4EE23E2514300DCD162 /* SDL_gamepad.c in Sources */,
E4A568B62AF763940062EEC4 /* SDL_sysmain_callbacks.c in Sources */,
F316ABD82B5C3185002EF551 /* SDL_memset.c in Sources */,
A7D8BA1323E2514400DCD162 /* SDL_render_sw.c in Sources */,
A7D8B42223E2514300DCD162 /* SDL_syssem.c in Sources */,
A7D8B53923E2514300DCD162 /* SDL_hidapi_xbox360.c in Sources */,
@@ -2610,6 +2620,7 @@
A7D8B76A23E2514300DCD162 /* SDL_wave.c in Sources */,
5616CA4C252BB2A6005D5928 /* SDL_url.c in Sources */,
A7D8BAD323E2514500DCD162 /* s_tan.c in Sources */,
F316ABDB2B5CA721002EF551 /* SDL_memmove.c in Sources */,
A7D8AA6523E2514000DCD162 /* SDL_hints.c in Sources */,
A7D8B53F23E2514300DCD162 /* SDL_hidapi_ps4.c in Sources */,
F362B91C2B3349E200D30B94 /* SDL_steam_virtual_gamepad.c in Sources */,
@@ -2623,6 +2634,7 @@
F395C1B12569C6A000942BFF /* SDL_mfijoystick.m in Sources */,
A7D8B99223E2514400DCD162 /* SDL_shaders_metal.metal in Sources */,
F3990DF52A787C10000D8759 /* SDL_sysurl.m in Sources */,
F316ABD92B5C3185002EF551 /* SDL_memcpy.c in Sources */,
A7D8B97A23E2514400DCD162 /* SDL_render.c in Sources */,
A7D8ABD323E2514100DCD162 /* SDL_stretch.c in Sources */,
A7D8BAFD23E2514500DCD162 /* s_floor.c in Sources */,