diff options
Diffstat (limited to 'toolchain/gcc/patches/4.3.5/943-avr32_fix_f64_cmp.patch')
| -rw-r--r-- | toolchain/gcc/patches/4.3.5/943-avr32_fix_f64_cmp.patch | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/toolchain/gcc/patches/4.3.5/943-avr32_fix_f64_cmp.patch b/toolchain/gcc/patches/4.3.5/943-avr32_fix_f64_cmp.patch new file mode 100644 index 0000000000..b5d526c2a6 --- /dev/null +++ b/toolchain/gcc/patches/4.3.5/943-avr32_fix_f64_cmp.patch @@ -0,0 +1,66 @@ +--- a/gcc/config/avr32/lib1funcs.S ++++ b/gcc/config/avr32/lib1funcs.S +@@ -1389,25 +1389,30 @@ __avr32_f64_cmp_lt: + #endif + + /* compare magnitude of op1 and op2 */ ++ st.w --sp, lr ++ st.w --sp, r7 + lsl r11,1 /* Remove sign bit of op1 */ + srcs r12 /* Sign op1 to lsb of r12*/ +- subfeq r10, 0 +- breq 3f /* op1 zero */ + lsl r9,1 /* Remove sign bit of op2 */ ++ srcs r7 + rol r12 /* Sign op2 to lsb of lr, sign bit op1 bit 1 of r12*/ + + + /* Check for Nan */ +- pushm lr +- mov_imm lr, 0xffe00000 ++ mov_imm lr, 0xffe00000 + cp.w r10,0 + cpc r11,lr + brhi 0f /* We have NaN */ + cp.w r8,0 + cpc r9,lr + brhi 0f /* We have NaN */ +- popm lr +- ++ ++ cp.w r11, 0 ++ subfeq r10, 0 ++ breq 3f /* op1 zero */ ++ ld.w r7, sp++ ++ ld.w lr, sp++ ++ + cp.w r12,3 /* both operands negative ?*/ + breq 1f + +@@ -1453,18 +1458,22 @@ __avr32_f64_cmp_lt: + #endif + + 0: ++ ld.w r7, sp++ + popm pc, r12=0 + #endif + + 3: +- lsl r9,1 /* Remove sign bit of op1 */ ++ cp.w r7, 1 /* Check sign bit from r9 */ + #ifdef L_avr32_f64_cmp_ge +- srcs r12 /* If op2 is negative then op1 >= op2. */ ++ sreq r12 /* If op2 is negative then op1 >= op2. */ + #endif + #ifdef L_avr32_f64_cmp_lt +- srcc r12 /* If op2 is positve then op1 <= op2. */ ++ srne r12 /* If op2 is positve then op1 <= op2. */ + #endif +- subfeq r8, 0 ++ cp.w r9, 0 ++ subfeq r8, 0 ++ ld.w r7, sp++ ++ ld.w lr, sp++ + #ifdef L_avr32_f64_cmp_ge + reteq 1 /* Both operands are zero. Return true. */ + #endif |