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Merge pull request #24855 from hpvb/disable-ffast-math

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Don't use -ffast-math or other unsafe math optimizations
This commit is contained in:
Rémi Verschelde
2019-01-09 10:49:41 +01:00
committed by GitHub
parent e46f28e02d e5b335d367
commit 08fe57dcee
7 changed files with 9 additions and 16 deletions
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5
modules/etc/SCsub
View File

@@ -33,11 +33,6 @@ env_etc.Append(CPPPATH=[thirdparty_dir])
if not env.msvc:
env_etc.Append(CCFLAGS="-std=c++11")
# -ffast-math seems to be incompatible with etc2comp on recent versions of
# GCC and Clang
if '-ffast-math' in env_etc['CCFLAGS']:
env_etc['CCFLAGS'].remove('-ffast-math')
env_thirdparty = env_etc.Clone()
env_thirdparty.disable_warnings()
env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)

2
platform/android/detect.py
View File

@@ -141,7 +141,7 @@ def configure(env):
if (env["target"].startswith("release")):
if (env["optimize"] == "speed"): #optimize for speed (default)
env.Append(LINKFLAGS=['-O2'])
env.Append(CPPFLAGS=['-O2', '-DNDEBUG', '-ffast-math', '-funsafe-math-optimizations', '-fomit-frame-pointer'])
env.Append(CPPFLAGS=['-O2', '-DNDEBUG', '-fomit-frame-pointer'])
else: #optimize for size
env.Append(CPPFLAGS=['-Os', '-DNDEBUG'])
env.Append(LINKFLAGS=['-Os'])

4
platform/haiku/detect.py
View File

@@ -37,14 +37,14 @@ def configure(env):
## Build type
if (env["target"] == "release"):
env.Prepend(CCFLAGS=['-O3', '-ffast-math'])
env.Prepend(CCFLAGS=['-O3'])
if (env["debug_symbols"] == "yes"):
env.Prepend(CCFLAGS=['-g1'])
if (env["debug_symbols"] == "full"):
env.Prepend(CCFLAGS=['-g2'])
elif (env["target"] == "release_debug"):
env.Prepend(CCFLAGS=['-O2', '-ffast-math', '-DDEBUG_ENABLED'])
env.Prepend(CCFLAGS=['-O2', '-DDEBUG_ENABLED'])
if (env["debug_symbols"] == "yes"):
env.Prepend(CCFLAGS=['-g1'])
if (env["debug_symbols"] == "full"):

2
platform/iphone/detect.py
View File

@@ -46,7 +46,7 @@ def configure(env):
if (env["target"].startswith("release")):
env.Append(CPPFLAGS=['-DNDEBUG', '-DNS_BLOCK_ASSERTIONS=1'])
if (env["optimize"] == "speed"): #optimize for speed (default)
env.Append(CPPFLAGS=['-O2', '-ftree-vectorize', '-fomit-frame-pointer', '-ffast-math', '-funsafe-math-optimizations'])
env.Append(CPPFLAGS=['-O2', '-ftree-vectorize', '-fomit-frame-pointer'])
env.Append(LINKFLAGS=['-O2'])
else: #optimize for size
env.Append(CPPFLAGS=['-Os', '-ftree-vectorize'])

2
platform/osx/detect.py
View File

@@ -42,7 +42,7 @@ def configure(env):
if (env["target"] == "release"):
if (env["optimize"] == "speed"): #optimize for speed (default)
env.Prepend(CCFLAGS=['-O3', '-ffast-math', '-fomit-frame-pointer', '-ftree-vectorize', '-msse2'])
env.Prepend(CCFLAGS=['-O3', '-fomit-frame-pointer', '-ftree-vectorize', '-msse2'])
else: #optimize for size
env.Prepend(CCFLAGS=['-Os','-ftree-vectorize', '-msse2'])

4
platform/server/detect.py
View File

@@ -43,10 +43,10 @@ def configure(env):
## Build type
if (env["target"] == "release"):
env.Append(CCFLAGS=['-O2', '-ffast-math', '-fomit-frame-pointer'])
env.Append(CCFLAGS=['-O2', '-fomit-frame-pointer'])
elif (env["target"] == "release_debug"):
env.Append(CCFLAGS=['-O2', '-ffast-math', '-DDEBUG_ENABLED'])
env.Append(CCFLAGS=['-O2', '-DDEBUG_ENABLED'])
elif (env["target"] == "debug"):
env.Append(CCFLAGS=['-g2', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])

6
platform/x11/detect.py
View File

@@ -86,10 +86,8 @@ def configure(env):
## Build type
if (env["target"] == "release"):
# -O3 -ffast-math is identical to -Ofast. We need to split it out so we can selectively disable
# -ffast-math in code for which it generates wrong results.
if (env["optimize"] == "speed"): #optimize for speed (default)
env.Prepend(CCFLAGS=['-O3', '-ffast-math'])
env.Prepend(CCFLAGS=['-O3'])
else: #optimize for size
env.Prepend(CCFLAGS=['-Os'])
@@ -100,7 +98,7 @@ def configure(env):
elif (env["target"] == "release_debug"):
if (env["optimize"] == "speed"): #optimize for speed (default)
env.Prepend(CCFLAGS=['-O2', '-ffast-math', '-DDEBUG_ENABLED'])
env.Prepend(CCFLAGS=['-O2', '-DDEBUG_ENABLED'])
else: #optimize for size
env.Prepend(CCFLAGS=['-Os', '-DDEBUG_ENABLED'])