fpu/softfloat.c | 29 +++++++++++++++++++++++++++++ include/fpu/softfloat.h | 1 + 2 files changed, 30 insertions(+)
Handling it just like float128_to_uint32_round_to_zero, that hopefully
is free of bugs :)
Documentation basically copied from float128_to_uint64
Signed-off-by: David Hildenbrand <david@redhat.com>
---
fpu/softfloat.c | 29 +++++++++++++++++++++++++++++
include/fpu/softfloat.h | 1 +
2 files changed, 30 insertions(+)
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 9132d7a0b0..c69cd6b5d1 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -6792,6 +6792,35 @@ uint32_t float128_to_uint32_round_to_zero(float128 a, float_status *status)
return res;
}
+/*----------------------------------------------------------------------------
+| Returns the result of converting the quadruple-precision floating-point value
+| `a' to the 32-bit unsigned integer format. The conversion is
+| performed according to the IEC/IEEE Standard for Binary Floating-Point
+| Arithmetic---which means in particular that the conversion is rounded
+| according to the current rounding mode. If `a' is a NaN, the largest
+| positive integer is returned. If the conversion overflows, the
+| largest unsigned integer is returned. If 'a' is negative, the value is
+| rounded and zero is returned; negative values that do not round to zero
+| will raise the inexact exception.
+*----------------------------------------------------------------------------*/
+
+uint32_t float128_to_uint32(float128 a, float_status *status)
+{
+ uint64_t v;
+ uint32_t res;
+ int old_exc_flags = get_float_exception_flags(status);
+
+ v = float128_to_uint64(a, status);
+ if (v > 0xffffffff) {
+ res = 0xffffffff;
+ } else {
+ return v;
+ }
+ set_float_exception_flags(old_exc_flags, status);
+ float_raise(float_flag_invalid, status);
+ return res;
+}
+
/*----------------------------------------------------------------------------
| Returns the result of converting the quadruple-precision floating-point
| value `a' to the single-precision floating-point format. The conversion
diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
index 3ff5215b81..3ff3fa5224 100644
--- a/include/fpu/softfloat.h
+++ b/include/fpu/softfloat.h
@@ -878,6 +878,7 @@ int64_t float128_to_int64(float128, float_status *status);
int64_t float128_to_int64_round_to_zero(float128, float_status *status);
uint64_t float128_to_uint64(float128, float_status *status);
uint64_t float128_to_uint64_round_to_zero(float128, float_status *status);
+uint32_t float128_to_uint32(float128, float_status *status);
uint32_t float128_to_uint32_round_to_zero(float128, float_status *status);
float32 float128_to_float32(float128, float_status *status);
float64 float128_to_float64(float128, float_status *status);
--
2.17.2
On 2/6/19 10:53 AM, David Hildenbrand wrote: > Handling it just like float128_to_uint32_round_to_zero, that hopefully > is free of bugs :) > > Documentation basically copied from float128_to_uint64 > > Signed-off-by: David Hildenbrand <david@redhat.com> > --- > fpu/softfloat.c | 29 +++++++++++++++++++++++++++++ > include/fpu/softfloat.h | 1 + > 2 files changed, 30 insertions(+) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
David Hildenbrand <david@redhat.com> writes: > Handling it just like float128_to_uint32_round_to_zero, that hopefully > is free of bugs :) > > Documentation basically copied from float128_to_uint64 Queued to fpu/next, thanks. BTW to test: tests/fp: add wrapping for f128_to_ui32 Needed to test: softfloat: add float128_is_{normal,denormal} Signed-off-by: Alex Bennée <alex.bennee@linaro.org> 2 files changed, 3 insertions(+), 1 deletion(-) tests/fp/fp-test.c | 3 ++- tests/fp/wrap.inc.c | 1 + modified tests/fp/fp-test.c @@ -622,7 +622,8 @@ static void do_testfloat(int op, int rmode, bool exact) test_ab_extF80_z_bool(true_ab_extF80M_z_bool, subj_ab_extF80M_z_bool); break; case F128_TO_UI32: - not_implemented(); + test_a_f128_z_ui32_rx(slow_f128M_to_ui32, qemu_f128M_to_ui32, rmode, + exact); break; case F128_TO_UI64: test_a_f128_z_ui64_rx(slow_f128M_to_ui64, qemu_f128M_to_ui64, rmode, modified tests/fp/wrap.inc.c @@ -367,6 +367,7 @@ WRAP_80_TO_INT_MINMAG(qemu_extF80M_to_i64_r_minMag, WRAP_128_TO_INT(qemu_f128M_to_i32, float128_to_int32, int_fast32_t) WRAP_128_TO_INT(qemu_f128M_to_i64, float128_to_int64, int_fast64_t) +WRAP_128_TO_INT(qemu_f128M_to_ui32, float128_to_uint32, uint_fast32_t) WRAP_128_TO_INT(qemu_f128M_to_ui64, float128_to_uint64, uint_fast64_t) #undef WRAP_128_TO_INT -- Alex Bennée
On 06.02.19 16:12, Alex Bennée wrote: > > David Hildenbrand <david@redhat.com> writes: > >> Handling it just like float128_to_uint32_round_to_zero, that hopefully >> is free of bugs :) >> >> Documentation basically copied from float128_to_uint64 > > Queued to fpu/next, thanks. > > BTW to test: > > tests/fp: add wrapping for f128_to_ui32 > > Needed to test: softfloat: add float128_is_{normal,denormal} Thanks, was that supposed to be "softfloat: Implement float128_to_uint32" ? > > Signed-off-by: Alex Bennée <alex.bennee@linaro.org> > > 2 files changed, 3 insertions(+), 1 deletion(-) > tests/fp/fp-test.c | 3 ++- > tests/fp/wrap.inc.c | 1 + > > modified tests/fp/fp-test.c > @@ -622,7 +622,8 @@ static void do_testfloat(int op, int rmode, bool exact) > test_ab_extF80_z_bool(true_ab_extF80M_z_bool, subj_ab_extF80M_z_bool); > break; > case F128_TO_UI32: > - not_implemented(); > + test_a_f128_z_ui32_rx(slow_f128M_to_ui32, qemu_f128M_to_ui32, rmode, > + exact); > break; > case F128_TO_UI64: > test_a_f128_z_ui64_rx(slow_f128M_to_ui64, qemu_f128M_to_ui64, rmode, > modified tests/fp/wrap.inc.c > @@ -367,6 +367,7 @@ WRAP_80_TO_INT_MINMAG(qemu_extF80M_to_i64_r_minMag, > WRAP_128_TO_INT(qemu_f128M_to_i32, float128_to_int32, int_fast32_t) > WRAP_128_TO_INT(qemu_f128M_to_i64, float128_to_int64, int_fast64_t) > > +WRAP_128_TO_INT(qemu_f128M_to_ui32, float128_to_uint32, uint_fast32_t) > WRAP_128_TO_INT(qemu_f128M_to_ui64, float128_to_uint64, uint_fast64_t) > #undef WRAP_128_TO_INT > > -- > Alex Bennée > -- Thanks, David / dhildenb
David Hildenbrand <david@redhat.com> writes: > On 06.02.19 16:12, Alex Bennée wrote: >> >> David Hildenbrand <david@redhat.com> writes: >> >>> Handling it just like float128_to_uint32_round_to_zero, that hopefully >>> is free of bugs :) >>> >>> Documentation basically copied from float128_to_uint64 >> >> Queued to fpu/next, thanks. >> >> BTW to test: >> >> tests/fp: add wrapping for f128_to_ui32 >> >> Needed to test: softfloat: add float128_is_{normal,denormal} > > Thanks, was that supposed to be "softfloat: Implement > float128_to_uint32" ? Ahh yes... too liberal with my C&P ;-) Thanks! > >> >> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> >> >> 2 files changed, 3 insertions(+), 1 deletion(-) >> tests/fp/fp-test.c | 3 ++- >> tests/fp/wrap.inc.c | 1 + >> >> modified tests/fp/fp-test.c >> @@ -622,7 +622,8 @@ static void do_testfloat(int op, int rmode, bool exact) >> test_ab_extF80_z_bool(true_ab_extF80M_z_bool, subj_ab_extF80M_z_bool); >> break; >> case F128_TO_UI32: >> - not_implemented(); >> + test_a_f128_z_ui32_rx(slow_f128M_to_ui32, qemu_f128M_to_ui32, rmode, >> + exact); >> break; >> case F128_TO_UI64: >> test_a_f128_z_ui64_rx(slow_f128M_to_ui64, qemu_f128M_to_ui64, rmode, >> modified tests/fp/wrap.inc.c >> @@ -367,6 +367,7 @@ WRAP_80_TO_INT_MINMAG(qemu_extF80M_to_i64_r_minMag, >> WRAP_128_TO_INT(qemu_f128M_to_i32, float128_to_int32, int_fast32_t) >> WRAP_128_TO_INT(qemu_f128M_to_i64, float128_to_int64, int_fast64_t) >> >> +WRAP_128_TO_INT(qemu_f128M_to_ui32, float128_to_uint32, uint_fast32_t) >> WRAP_128_TO_INT(qemu_f128M_to_ui64, float128_to_uint64, uint_fast64_t) >> #undef WRAP_128_TO_INT >> >> -- >> Alex Bennée >> -- Alex Bennée
On 06.02.19 16:42, Alex Bennée wrote: > > David Hildenbrand <david@redhat.com> writes: > >> On 06.02.19 16:12, Alex Bennée wrote: >>> >>> David Hildenbrand <david@redhat.com> writes: >>> >>>> Handling it just like float128_to_uint32_round_to_zero, that hopefully >>>> is free of bugs :) >>>> >>>> Documentation basically copied from float128_to_uint64 >>> >>> Queued to fpu/next, thanks. >>> >>> BTW to test: >>> >>> tests/fp: add wrapping for f128_to_ui32 >>> >>> Needed to test: softfloat: add float128_is_{normal,denormal} >> >> Thanks, was that supposed to be "softfloat: Implement >> float128_to_uint32" ? > > Ahh yes... too liberal with my C&P ;-) > > Thanks! Hi Alex, any chance we can get my two softfloat + richards float_to_odd patches upstream in the near future? I have quite some patches waiting for these three to be able to get picked up by Conny (and more to be sent by me). Thanks! -- Thanks, David / dhildenb
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