diff options
| author | John van Groningen | 2003-07-07 09:40:42 +0000 |
|---|---|---|
| committer | John van Groningen | 2003-07-07 09:40:42 +0000 |
| commit | 5ee3776a9a52bda4b242f1fe0ee69361fd9e0d19 (patch) | |
| tree | e554e5ba25365fa17394e60dbec18769cdff5593 /cgias.c | |
| parent | add SEPARATE_A_AND_B_STACK_OVERFLOW_CHECKS #define (diff) | |
fix bug in floating point subtract and divide
Diffstat (limited to 'cgias.c')
| -rw-r--r-- | cgias.c | 17 |
1 files changed, 9 insertions, 8 deletions
@@ -2638,6 +2638,7 @@ static void as_f_i (int code1,int code2,DOUBLE *r_p) } #ifdef FP_STACK_OPTIMIZATIONS +#define FP_REVERSE_SUB_DIV_OPERANDS 1 #define FP_REG_ON_TOP 2 #define FP_REG_LAST_USE 4 @@ -2749,7 +2750,7 @@ int next_instruction_is_fld_reg (int reg0,struct instruction *instruction) next2_fp_instruction->instruction_parameters[0].parameter_flags=flags2; if (next2_fp_instruction->instruction_icode==IFSUB || next2_fp_instruction->instruction_icode==IFDIV) - next_fp_instruction->instruction_parameters[1].parameter_flags ^= 1; + next2_fp_instruction->instruction_parameters[1].parameter_flags ^= FP_REVERSE_SUB_DIV_OPERANDS; if (!(flags1 & FP_REG_LAST_USE)) return 1; @@ -2861,7 +2862,7 @@ static void fstpl_instruction (int reg0,struct instruction *instruction) next2_fp_instruction->instruction_parameters[0].parameter_flags=flags2; if (next2_fp_instruction->instruction_icode==IFSUB || next2_fp_instruction->instruction_icode==IFDIV) - next_fp_instruction->instruction_parameters[1].parameter_flags ^= 1; + next2_fp_instruction->instruction_parameters[1].parameter_flags ^= FP_REVERSE_SUB_DIV_OPERANDS; if (!(flags1 & FP_REG_LAST_USE)) as_f_r (0xdd,0xd0,reg0+1); /* fst reg0+1 */ @@ -2952,7 +2953,7 @@ static struct instruction *as_fmove_instruction (struct instruction *instruction break; case IFSUB: #ifdef FSUB_FDIV_REVERSED - if (next_instruction->instruction_parameters[1].parameter_flags & 1) + if (next_instruction->instruction_parameters[1].parameter_flags & FP_REVERSE_SUB_DIV_OPERANDS) code2=0xe8; else #endif @@ -2963,7 +2964,7 @@ static struct instruction *as_fmove_instruction (struct instruction *instruction break; case IFDIV: #ifdef FSUB_FDIV_REVERSED - if (next_instruction->instruction_parameters[1].parameter_flags & 1) + if (next_instruction->instruction_parameters[1].parameter_flags & FP_REVERSE_SUB_DIV_OPERANDS) code2=0xf8; else #endif @@ -2981,7 +2982,7 @@ static struct instruction *as_fmove_instruction (struct instruction *instruction break; case IFSUB: #ifdef FSUB_FDIV_REVERSED - if (next_instruction->instruction_parameters[1].parameter_flags & 1) + if (next_instruction->instruction_parameters[1].parameter_flags & FP_REVERSE_SUB_DIV_OPERANDS) code2=5; else #endif @@ -2992,7 +2993,7 @@ static struct instruction *as_fmove_instruction (struct instruction *instruction break; case IFDIV: #ifdef FSUB_FDIV_REVERSED - if (next_instruction->instruction_parameters[1].parameter_flags & 1) + if (next_instruction->instruction_parameters[1].parameter_flags & FP_REVERSE_SUB_DIV_OPERANDS) code2=7; else #endif @@ -3839,7 +3840,7 @@ static void as_instructions (struct instruction *instruction) break; case IFSUB: #ifdef FSUB_FDIV_REVERSED - if (instruction->instruction_parameters[1].parameter_flags & 1) + if (instruction->instruction_parameters[1].parameter_flags & FP_REVERSE_SUB_DIV_OPERANDS) as_dyadic_float_instruction (instruction,5,0xe8,0xe0); /*fsubrl fsubr fsubp*/ else #endif @@ -3850,7 +3851,7 @@ static void as_instructions (struct instruction *instruction) break; case IFDIV: #ifdef FSUB_FDIV_REVERSED - if (instruction->instruction_parameters[1].parameter_flags & 1) + if (instruction->instruction_parameters[1].parameter_flags & FP_REVERSE_SUB_DIV_OPERANDS) as_dyadic_float_instruction (instruction,7,0xf8,0xf0); /*fdivrl fdivr fdivp*/ else #endif |