The first simply picks the bany_inequal[234] opcodes based on the SSA
def's number of components. The latter implicitly compares with zero
to achieve the same semantics of GLSL's any().
Cc: mesa-sta...@lists.freedesktop.org
Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
---
src/compiler/nir/nir_builder.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/src/compiler/nir/nir_builder.h b/src/compiler/nir/nir_builder.h
index 435582a..affa29c 100644
--- a/src/compiler/nir/nir_builder.h
+++ b/src/compiler/nir/nir_builder.h
@@ -318,6 +318,25 @@ nir_fdot(nir_builder *build, nir_ssa_def *src0,
nir_ssa_def *src1)
}
static inline nir_ssa_def *
+nir_bany_inequal(nir_builder *b, nir_ssa_def *src0, nir_ssa_def *src1)
+{
+ switch (src0->num_components) {
+ case 1: return nir_ine(b, src0, src1);
+ case 2: return nir_bany_inequal2(b, src0, src1);
+ case 3: return nir_bany_inequal3(b, src0, src1);
+ case 4: return nir_bany_inequal4(b, src0, src1);
+ default:
+ unreachable("bad component size");
+ }
+}
+
+static inline nir_ssa_def *
+nir_bany(nir_builder *b, nir_ssa_def *src)
+{
+ return nir_bany_inequal(b, src, nir_imm_int(b, 0));
+}
+
+static inline nir_ssa_def *
nir_channel(nir_builder *b, nir_ssa_def *def, unsigned c)
{
unsigned swizzle[4] = {c, c, c, c};
--
2.9.3
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