diff options
Diffstat (limited to 'toolchain/gcc/patches/4.3.5/946-avr32_fix_32bit_div_2.patch')
| -rw-r--r-- | toolchain/gcc/patches/4.3.5/946-avr32_fix_32bit_div_2.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/toolchain/gcc/patches/4.3.5/946-avr32_fix_32bit_div_2.patch b/toolchain/gcc/patches/4.3.5/946-avr32_fix_32bit_div_2.patch new file mode 100644 index 0000000000..4170219a6a --- /dev/null +++ b/toolchain/gcc/patches/4.3.5/946-avr32_fix_32bit_div_2.patch @@ -0,0 +1,27 @@ +--- a/gcc/config/avr32/lib1funcs.S ++++ b/gcc/config/avr32/lib1funcs.S +@@ -2271,7 +2271,7 @@ __avr32_f32_div: + + tst r12, r12 + moveq r9, 0 +- breq 12 ++ breq 12f + + /* Unpack op1*/ + /* exp: r9 */ +@@ -2467,9 +2467,14 @@ __divsf_return_op1: + reteq 0 /* Return zero if number/inf*/ + ret -1 /* Return NaN*/ + 4: +- /* Op2 is zero ? */ ++ /* Op1 is zero ? */ + tst r12,r12 + reteq -1 /* 0.0/0.0 is NaN */ ++ /* Op1 is Nan? */ ++ lsr r9, r12, 24 ++ breq 11f /*If number is subnormal*/ ++ cp r9, 0xff ++ brhs 2b /* Check op1 for NaN or Inf */ + /* Nonzero/0.0 is Inf. Sign bit will be shifted in before returning*/ + mov_imm r12, 0xff000000 + rjmp __divsf_return_op1 |