Revision ecbb5ea1 target-alpha/op_helper.c
| b/target-alpha/op_helper.c | ||
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uint64_t helper_subqv (uint64_t op1, uint64_t op2) |
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{
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uint64_t tmp = op1;
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op1 -= op2;
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if (unlikely(((~tmp) ^ op1 ^ (-1ULL)) & ((~tmp) ^ op2) & (1ULL << 63))) {
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uint64_t res;
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res = op1 - op2;
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if (unlikely((op1 ^ op2) & (res ^ op1) & (1ULL << 63))) {
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helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW); |
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} |
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return op1;
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return res;
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} |
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uint64_t helper_sublv (uint64_t op1, uint64_t op2) |
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{
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uint64_t tmp = op1;
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op1 = (uint32_t)(op1 - op2);
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if (unlikely(((~tmp) ^ op1 ^ (-1UL)) & ((~tmp) ^ op2) & (1UL << 31))) {
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uint32_t res;
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res = op1 - op2;
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if (unlikely((op1 ^ op2) & (res ^ op1) & (1UL << 31))) {
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helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW); |
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} |
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return op1;
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return res;
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} |
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uint64_t helper_mullv (uint64_t op1, uint64_t op2) |
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