CMake: Set -ffinite-math-only so math functions get inlined

if this is not set, using fminf() actually calls that libm function,
if it is set, a CPU instruction that calculates the minimum is generated
instead. likely similar for other functions.

not sure if this causes trouble anywhere, but I don't think we rely
on NaN or INF?
This commit is contained in:
Daniel Gibson 2024-06-24 04:24:16 +02:00
parent ac6ec0cc45
commit c394fde58a

View file

@ -322,9 +322,9 @@ if(D3_COMPILER_IS_GCC_OR_CLANG)
set(CMAKE_C_FLAGS_DEBUG "-g -ggdb -D_DEBUG -O0")
set(CMAKE_C_FLAGS_DEBUGALL "-g -ggdb -D_DEBUG")
set(CMAKE_C_FLAGS_PROFILE "-g -ggdb -D_DEBUG -O1 -fno-omit-frame-pointer")
set(CMAKE_C_FLAGS_RELEASE "-O2 -fno-math-errno -fno-trapping-math -fomit-frame-pointer")
set(CMAKE_C_FLAGS_RELWITHDEBINFO "-g -ggdb -O2 -fno-math-errno -fno-trapping-math -fno-omit-frame-pointer")
set(CMAKE_C_FLAGS_MINSIZEREL "-Os -fno-math-errno -fno-trapping-math -fomit-frame-pointer")
set(CMAKE_C_FLAGS_RELEASE "-O2 -fno-math-errno -fno-trapping-math -ffinite-math-only -fomit-frame-pointer")
set(CMAKE_C_FLAGS_RELWITHDEBINFO "-g -ggdb -O2 -fno-math-errno -fno-trapping-math -ffinite-math-only -fno-omit-frame-pointer")
set(CMAKE_C_FLAGS_MINSIZEREL "-Os -fno-math-errno -fno-trapping-math -ffinite-math-only -fomit-frame-pointer")
set(CMAKE_CXX_FLAGS_DEBUGALL ${CMAKE_C_FLAGS_DEBUGALL})
set(CMAKE_CXX_FLAGS_PROFILE ${CMAKE_C_FLAGS_PROFILE})