/GA Assume thread-local variables are defined in the executable
/Gd Set __cdecl as a default calling convention
/GF- Disable string pooling
+ /GF Enable string pooling (default)
/GR- Disable emission of RTTI data
/Gregcall Set __regcall as a default calling convention
/GR Enable emission of RTTI data
/Gr Set __fastcall as a default calling convention
/GS- Disable buffer security check
- /GS Enable buffer security check
- /Gs<value> Set stack probe size
- /guard:<value> Enable Control Flow Guard with /guard:cf
+ /GS Enable buffer security check (default)
+ /Gs Use stack probes (default)
+ /Gs<value> Set stack probe size (default 4096)
+ /guard:<value> Enable Control Flow Guard with /guard:cf,
+ or only the table with /guard:cf,nochecks
/Gv Set __vectorcall as a default calling convention
/Gw- Don't put each data item in its own section
/Gw Put each data item in its own section
/GX- Disable exception handling
/GX Enable exception handling
- /Gy- Don't put each function in its own section
+ /Gy- Don't put each function in its own section (default)
/Gy Put each function in its own section
/Gz Set __stdcall as a default calling convention
/help Display available options
/MD Use DLL run-time
/MTd Use static debug run-time
/MT Use static run-time
+ /O0 Disable optimization
+ /O1 Optimize for size (same as /Og /Os /Oy /Ob2 /GF /Gy)
+ /O2 Optimize for speed (same as /Og /Oi /Ot /Oy /Ob2 /GF /Gy)
+ /Ob0 Disable function inlining
+ /Ob1 Only inline functions which are (explicitly or implicitly) marked inline
+ /Ob2 Inline functions as deemed beneficial by the compiler
/Od Disable optimization
+ /Og No effect
/Oi- Disable use of builtin functions
/Oi Enable use of builtin functions
/Os Optimize for size
/Ot Optimize for speed
- /O<value> Optimization level
+ /Ox Deprecated (same as /Og /Oi /Ot /Oy /Ob2); use /O2 instead
+ /Oy- Disable frame pointer omission (x86 only, default)
+ /Oy Enable frame pointer omission (x86 only)
+ /O<flags> Set multiple /O flags at once; e.g. '/O2y-' for '/O2 /Oy-'
/o <file or directory> Set output file or directory (ends in / or \)
/P Preprocess to file
/Qvec- Disable the loop vectorization passes
/Qvec Enable the loop vectorization passes
+ /showFilenames- Don't print the name of each compiled file (default)
+ /showFilenames Print the name of each compiled file
/showIncludes Print info about included files to stderr
/source-charset:<value> Source encoding, supports only UTF-8
/std:<value> Language standard to compile for
-fno-complete-member-pointers
Do not require member pointer base types to be complete if they would be significant under the Microsoft ABI
-fno-coverage-mapping Disable code coverage analysis
+ -fno-crash-diagnostics Disable auto-generation of preprocessed source files and a script for reproduction during a clang crash
-fno-debug-macro Do not emit macro debug information
-fno-delayed-template-parsing
Disable delayed template parsing
Disable poisoning array cookies when using custom operator new[] in AddressSanitizer
-fno-sanitize-address-use-after-scope
Disable use-after-scope detection in AddressSanitizer
+ -fno-sanitize-address-use-odr-indicator
+ Disable ODR indicator globals
-fno-sanitize-blacklist Don't use blacklist file for sanitizers
-fno-sanitize-cfi-cross-dso
Disable control flow integrity (CFI) checks for cross-DSO calls.
-fno-sanitize-trap=<value>
Disable trapping for specified sanitizers
-fno-standalone-debug Limit debug information produced to reduce size of debug binary
+ -fobjc-runtime=<value> Specify the target Objective-C runtime kind and version
+ -fprofile-exclude-files=<value>
+ Instrument only functions from files where names don't match all the regexes separated by a semi-colon
+ -fprofile-filter-files=<value>
+ Instrument only functions from files where names match any regex separated by a semi-colon
-fprofile-instr-generate=<file>
Generate instrumented code to collect execution counts into <file>
(overridden by LLVM_PROFILE_FILE env var)
(overridden by '=' form of option or LLVM_PROFILE_FILE env var)
-fprofile-instr-use=<value>
Use instrumentation data for profile-guided optimization
+ -fprofile-remapping-file=<file>
+ Use the remappings described in <file> to match the profile data against names in the program
-fsanitize-address-field-padding=<value>
Level of field padding for AddressSanitizer
-fsanitize-address-globals-dead-stripping
Enable linker dead stripping of globals in AddressSanitizer
- -fsanitize-address-use-odr-indicator
- Enable ODR indicator globals to avoid false ODR violation reports in partially sanitized programs at the cost of an increase in binary size
-fsanitize-address-poison-custom-array-cookie
Enable poisoning array cookies when using custom operator new[] in AddressSanitizer
-fsanitize-address-use-after-scope
Enable use-after-scope detection in AddressSanitizer
+ -fsanitize-address-use-odr-indicator
+ Enable ODR indicator globals to avoid false ODR violation reports in partially sanitized programs at the cost of an increase in binary size
-fsanitize-blacklist=<value>
Path to blacklist file for sanitizers
-fsanitize-cfi-cross-dso
Generalize pointers in CFI indirect call type signature checks
-fsanitize-coverage=<value>
Specify the type of coverage instrumentation for Sanitizers
+ -fsanitize-hwaddress-abi=<value>
+ Select the HWAddressSanitizer ABI to target (interceptor or platform, default interceptor)
-fsanitize-memory-track-origins=<value>
Enable origins tracking in MemorySanitizer
-fsanitize-memory-track-origins
Strip (or keep only, if negative) a given number of path components when emitting check metadata.
-fsanitize=<check> Turn on runtime checks for various forms of undefined or suspicious
behavior. See user manual for available checks
+ -fsplit-lto-unit Enables splitting of the LTO unit.
-fstandalone-debug Emit full debug info for all types used by the program
-fwhole-program-vtables Enables whole-program vtable optimization. Requires -flto
+ -gcodeview-ghash Emit type record hashes in a .debug$H section
-gcodeview Generate CodeView debug information
+ -gline-directives-only Emit debug line info directives only
-gline-tables-only Emit debug line number tables only
-miamcu Use Intel MCU ABI
-mllvm <value> Additional arguments to forward to LLVM's option processing
projects / clang / commitdiff