agx: Add interleave opcode

We'll use it for texture atomics.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>

src/asahi/compiler/agx_compile.c

@@ -1131,6 +1131,7 @@ agx_emit_alu(agx_builder *b, nir_alu_instr *instr)
       BINOP(iand, and);
       BINOP(ior, or);
       BINOP(ixor, xor);
+      BINOP(interleave_agx, intl);
 
    case nir_op_feq:
       return agx_fcmpsel_to(b, dst, s0, s1, i1, i0, AGX_FCOND_EQ);

src/asahi/compiler/agx_opcodes.py

@@ -335,6 +335,7 @@ for is_float in [False, True]:
             imms = imms, is_float = is_float)
 
 op("bitop", (0x7E, 0x7F, 6, _), srcs = 2, imms = [TRUTH_TABLE])
+op("intl", (0x3E, 0x7F, 6, _), srcs = 2, imms = [])
 op("convert", (0x3E | L, 0x7F | L | (0x3 << 38), 6, _), srcs = 2, imms = [ROUND]) 
 
 # Sources are the coeffient register and the sample index (if applicable)