diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 46 |
1 files changed, 46 insertions, 0 deletions
@@ -673,6 +673,7 @@ LLVM_PROF_FILE LLVM_PROF_MERGER PGO_PROF_USE_FLAG PGO_PROF_GEN_FLAG +LTOFLAGS ABIFLAGS LN MKDIR_P @@ -807,6 +808,7 @@ with_suffix enable_shared enable_profiling with_pydebug +with_lto with_hash_algorithm with_address_sanitizer with_libs @@ -1487,6 +1489,8 @@ Optional Packages: compiler --with-suffix=.exe set executable suffix --with-pydebug build with Py_DEBUG defined + --with-lto Enable Link Time Optimization in PGO builds. + Disabled by default. --with-hash-algorithm=[fnv|siphash24] select hash algorithm --with-address-sanitizer @@ -6560,6 +6564,48 @@ $as_echo "no" >&6; } fi +# Enable LTO flags + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --with-lto" >&5 +$as_echo_n "checking for --with-lto... " >&6; } + +# Check whether --with-lto was given. +if test "${with_lto+set}" = set; then : + withval=$with_lto; +if test "$withval" != no +then + Py_LTO='true' + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; }; +else + Py_LTO='false' + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; }; +fi +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + +if test "$Py_LTO" = 'true' ; then + case $CC in + *clang*) + # Any changes made here should be reflected in the GCC+Darwin case below + LTOFLAGS="-flto" + ;; + *gcc*) + case $ac_sys_system in + Darwin*) + LTOFLAGS="-flto" + ;; + *) + LTOFLAGS="-flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none" + ;; + esac + ;; + esac +fi + # Enable PGO flags. |