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| author | Jason Ekstrand <jason@jlekstrand.net> | 2019-06-20 10:36:10 -0500 |
|---|---|---|
| committer | Juan A. Suarez Romero <jasuarez@igalia.com> | 2019-07-15 10:09:44 +0000 |
| commit | afaec581a880a5e1c7ecaf7ba45f48d2be437792 (patch) | |
| tree | e45a150d867b175cebd4d0d9a5b27a2f4d12b764 /src/compiler/nir/nir.c | |
| parent | f5e70045e1ad7ff6c2cdd9a8eff682fcdd166067 (diff) | |
| download | mesa-afaec581a880a5e1c7ecaf7ba45f48d2be437792.tar.gz | |
nir: Add more helpers for working with const values
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
(cherry picked from commit ce5581e23e54be91e4c1ad6a6c5990eca6677ceb)
Diffstat (limited to 'src/compiler/nir/nir.c')
| -rw-r--r-- | src/compiler/nir/nir.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/compiler/nir/nir.c b/src/compiler/nir/nir.c index 5b75585498e..5c1e0e8a3b3 100644 --- a/src/compiler/nir/nir.c +++ b/src/compiler/nir/nir.c @@ -1204,6 +1204,41 @@ nir_foreach_src(nir_instr *instr, nir_foreach_src_cb cb, void *state) return nir_foreach_dest(instr, visit_dest_indirect, &dest_state); } +nir_const_value +nir_const_value_for_float(double f, unsigned bit_size) +{ + nir_const_value v; + memset(&v, 0, sizeof(v)); + + switch (bit_size) { + case 16: + v.u16 = _mesa_float_to_half(f); + break; + case 32: + v.f32 = f; + break; + case 64: + v.f64 = f; + break; + default: + unreachable("Invalid bit size"); + } + + return v; +} + +double +nir_const_value_as_float(nir_const_value value, unsigned bit_size) +{ + switch (bit_size) { + case 16: return _mesa_half_to_float(value.u16); + case 32: return value.f32; + case 64: return value.f64; + default: + unreachable("Invalid bit size"); + } +} + int64_t nir_src_comp_as_int(nir_src src, unsigned comp) { |