diff options
Diffstat (limited to 'gcc/config.gcc')
| -rw-r--r-- | gcc/config.gcc | 48 |
1 files changed, 44 insertions, 4 deletions
diff --git a/gcc/config.gcc b/gcc/config.gcc index c3d6464..6c957c4 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -1336,8 +1336,48 @@ avr-*-*) tm_file="${tm_file} ${cpu_type}/avrlibc.h" tm_defines="${tm_defines} WITH_AVRLIBC" fi + # Work out avr_double_comparison which is 2 or 3 and is used in + # target hook FLOAT_LIB_COMPARE_RETURNS_BOOL to determine whether + # DFmode comparisons return 3-state or 2-state results. + case y${with_double_comparison} in + y | ytristate) + avr_double_comparison=3 + ;; + ybool | ylibf7) + avr_double_comparison=2 + ;; + *) + echo "Error: --with-double-comparison= can only be used with: 'tristate', 'bool', 'libf7'" 1>&2 + exit 1 + ;; + esac + case "y${with_libf7}" in + yno) + # avr_double_comparison as set above. + ;; + ylibgcc) + avr_double_comparison=2 + tm_defines="${tm_defines} WITH_LIBF7_LIBGCC" + ;; + y | yyes | ymath-symbols) + avr_double_comparison=2 + tm_defines="${tm_defines} WITH_LIBF7_LIBGCC" + tm_defines="${tm_defines} WITH_LIBF7_MATH" + tm_defines="${tm_defines} WITH_LIBF7_MATH_SYMBOLS" + ;; + ymath) + avr_double_comparison=2 + tm_defines="${tm_defines} WITH_LIBF7_LIBGCC" + tm_defines="${tm_defines} WITH_LIBF7_MATH" + ;; + *) + echo "Error: --with-libf7=${with_libf7} but can only be used with: 'libgcc', 'math', 'math-symbols', 'yes', 'no'" 1>&2 + exit 1 + ;; + esac + tm_defines="${tm_defines} WITH_DOUBLE_COMPARISON=${avr_double_comparison}" case y${with_double} in - y | y32) + y32) avr_double=32 tm_defines="${tm_defines} HAVE_DOUBLE32" ;; @@ -1352,7 +1392,7 @@ avr-*-*) tm_defines="${tm_defines} HAVE_DOUBLE64" tm_defines="${tm_defines} HAVE_DOUBLE_MULTILIB" ;; - y32,64) + y | y32,64) avr_double=32 avr_double_multilib=1 tm_defines="${tm_defines} HAVE_DOUBLE32" @@ -1365,7 +1405,7 @@ avr-*-*) ;; esac case y${with_long_double} in - y | y32) + y32) avr_long_double=32 tm_defines="${tm_defines} HAVE_LONG_DOUBLE32" ;; @@ -1373,7 +1413,7 @@ avr-*-*) avr_long_double=64 tm_defines="${tm_defines} HAVE_LONG_DOUBLE64" ;; - y64,32) + y | y64,32) avr_long_double=64 avr_long_double_multilib=1 tm_defines="${tm_defines} HAVE_LONG_DOUBLE32" |