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target-ppc: Rename helper_compute_fprf to helper_compute_fprf_float64
Since helper_compute_fprf() works on float64 argument, rename it to helper_compute_fprf_float64(). Also use a macro to generate helper_compute_fprf_float64() so that float128 version of the same helper can be introduced easily later. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Bharata B Rao
David Gibson
parent
5dc22bf581
commit
ffc67420f9
3 changed files with 72 additions and 69 deletions
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@ -57,55 +57,58 @@ static inline int ppc_float64_get_unbiased_exp(float64 f)
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return ((f >> 52) & 0x7FF) - 1023;
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}
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void helper_compute_fprf(CPUPPCState *env, float64 arg)
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{
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int isneg;
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int fprf;
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isneg = float64_is_neg(arg);
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if (unlikely(float64_is_any_nan(arg))) {
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if (float64_is_signaling_nan(arg, &env->fp_status)) {
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/* Signaling NaN: flags are undefined */
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fprf = 0x00;
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} else {
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/* Quiet NaN */
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fprf = 0x11;
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}
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} else if (unlikely(float64_is_infinity(arg))) {
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/* +/- infinity */
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if (isneg) {
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fprf = 0x09;
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} else {
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fprf = 0x05;
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}
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} else {
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if (float64_is_zero(arg)) {
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/* +/- zero */
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if (isneg) {
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fprf = 0x12;
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} else {
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fprf = 0x02;
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}
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} else {
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if (float64_is_zero_or_denormal(arg)) {
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/* Denormalized numbers */
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fprf = 0x10;
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} else {
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/* Normalized numbers */
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fprf = 0x00;
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}
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if (isneg) {
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fprf |= 0x08;
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} else {
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fprf |= 0x04;
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}
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}
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}
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/* We update FPSCR_FPRF */
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env->fpscr &= ~(0x1F << FPSCR_FPRF);
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env->fpscr |= fprf << FPSCR_FPRF;
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#define COMPUTE_FPRF(tp) \
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void helper_compute_fprf_##tp(CPUPPCState *env, tp arg) \
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{ \
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int isneg; \
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int fprf; \
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\
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isneg = tp##_is_neg(arg); \
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if (unlikely(tp##_is_any_nan(arg))) { \
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if (tp##_is_signaling_nan(arg, &env->fp_status)) { \
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/* Signaling NaN: flags are undefined */ \
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fprf = 0x00; \
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} else { \
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/* Quiet NaN */ \
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fprf = 0x11; \
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} \
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} else if (unlikely(tp##_is_infinity(arg))) { \
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/* +/- infinity */ \
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if (isneg) { \
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fprf = 0x09; \
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} else { \
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fprf = 0x05; \
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} \
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} else { \
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if (tp##_is_zero(arg)) { \
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/* +/- zero */ \
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if (isneg) { \
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fprf = 0x12; \
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} else { \
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fprf = 0x02; \
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} \
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} else { \
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if (tp##_is_zero_or_denormal(arg)) { \
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/* Denormalized numbers */ \
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fprf = 0x10; \
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} else { \
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/* Normalized numbers */ \
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fprf = 0x00; \
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} \
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if (isneg) { \
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fprf |= 0x08; \
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} else { \
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fprf |= 0x04; \
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} \
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} \
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} \
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/* We update FPSCR_FPRF */ \
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env->fpscr &= ~(0x1F << FPSCR_FPRF); \
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env->fpscr |= fprf << FPSCR_FPRF; \
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}
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COMPUTE_FPRF(float64)
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/* Floating-point invalid operations exception */
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static inline __attribute__((__always_inline__))
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uint64_t float_invalid_op_excp(CPUPPCState *env, int op, int set_fpcc)
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@ -1808,7 +1811,7 @@ void helper_##name(CPUPPCState *env, uint32_t opcode) \
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} \
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\
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if (sfprf) { \
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helper_compute_fprf(env, xt.fld); \
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helper_compute_fprf_float64(env, xt.fld); \
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} \
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} \
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putVSR(xT(opcode), &xt, env); \
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@ -1863,7 +1866,7 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
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} \
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\
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if (sfprf) { \
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helper_compute_fprf(env, xt.fld); \
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helper_compute_fprf_float64(env, xt.fld); \
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} \
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} \
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\
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@ -1917,7 +1920,7 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
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} \
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\
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if (sfprf) { \
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helper_compute_fprf(env, xt.fld); \
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helper_compute_fprf_float64(env, xt.fld); \
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} \
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} \
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\
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@ -1958,7 +1961,7 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
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} \
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\
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if (sfprf) { \
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helper_compute_fprf(env, xt.fld); \
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helper_compute_fprf_float64(env, xt.fld); \
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} \
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} \
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\
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@ -2007,7 +2010,7 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
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} \
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\
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if (sfprf) { \
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helper_compute_fprf(env, xt.fld); \
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helper_compute_fprf_float64(env, xt.fld); \
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} \
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} \
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\
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@ -2057,7 +2060,7 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
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} \
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\
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if (sfprf) { \
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helper_compute_fprf(env, xt.fld); \
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helper_compute_fprf_float64(env, xt.fld); \
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} \
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} \
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\
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@ -2257,7 +2260,7 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
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} \
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\
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if (sfprf) { \
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helper_compute_fprf(env, xt_out.fld); \
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helper_compute_fprf_float64(env, xt_out.fld); \
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} \
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} \
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putVSR(xT(opcode), &xt_out, env); \
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@ -2647,7 +2650,7 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
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xt.tfld = ttp##_snan_to_qnan(xt.tfld); \
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} \
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if (sfprf) { \
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helper_compute_fprf(env, ttp##_to_float64(xt.tfld, \
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helper_compute_fprf_float64(env, ttp##_to_float64(xt.tfld, \
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&env->fp_status)); \
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} \
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} \
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@ -2758,7 +2761,7 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
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xt.tfld = helper_frsp(env, xt.tfld); \
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} \
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if (sfprf) { \
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helper_compute_fprf(env, xt.tfld); \
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helper_compute_fprf_float64(env, xt.tfld); \
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} \
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} \
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\
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@ -2814,7 +2817,7 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
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xt.fld = tp##_round_to_int(xb.fld, &env->fp_status); \
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} \
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if (sfprf) { \
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helper_compute_fprf(env, xt.fld); \
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helper_compute_fprf_float64(env, xt.fld); \
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} \
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} \
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\
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@ -2854,7 +2857,7 @@ uint64_t helper_xsrsp(CPUPPCState *env, uint64_t xb)
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uint64_t xt = helper_frsp(env, xb);
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helper_compute_fprf(env, xt);
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helper_compute_fprf_float64(env, xt);
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float_check_status(env);
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return xt;
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}
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