freedreno/ir3: Fix the type of half-float indirect uniform loads.

We would be making a MOV from a u32, when we should be loading from a
16-bit value.  This likely didn't bite us because we only do mediump in FS
and CS so far, and indirect uniforms are usually in a VS (and usually
highp).

Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6179>

diff --git a/src/freedreno/ir3/ir3.h b/src/freedreno/ir3/ir3.h
index 0a7ab7316435e71cd1a11aad1261c0095f9d3baa..2f5423238e0a6c9fff4b22ec7774bec155326ca1 100644 (file)
--- a/src/freedreno/ir3/ir3.h
+++ b/src/freedreno/ir3/ir3.h
@@ -1409,14 +1409,14 @@ create_uniform(struct ir3_block *block, unsigned n)
 }
 
 static inline struct ir3_instruction *
-create_uniform_indirect(struct ir3_block *block, int n,
+create_uniform_indirect(struct ir3_block *block, int n, type_t type,
                struct ir3_instruction *address)
 {
        struct ir3_instruction *mov;
 
        mov = ir3_instr_create(block, OPC_MOV);
-       mov->cat1.src_type = TYPE_U32;
-       mov->cat1.dst_type = TYPE_U32;
+       mov->cat1.src_type = type;
+       mov->cat1.dst_type = type;
        __ssa_dst(mov);
        ir3_reg_create(mov, 0, IR3_REG_CONST | IR3_REG_RELATIV)->array.offset = n;
 

diff --git a/src/freedreno/ir3/ir3_compiler_nir.c b/src/freedreno/ir3/ir3_compiler_nir.c
index 77c0b800d9a26c24dec335f9bd50d9f293300c58..c3461c85c7d912d64d0411ef75055bfb504e2b1c 100644 (file)
--- a/src/freedreno/ir3/ir3_compiler_nir.c
+++ b/src/freedreno/ir3/ir3_compiler_nir.c
@@ -785,8 +785,8 @@ emit_intrinsic_load_ubo(struct ir3_context *ctx, nir_intrinsic_instr *intr,
                base_lo = create_uniform(b, ubo + (src0->regs[1]->iim_val * ptrsz));
                base_hi = create_uniform(b, ubo + (src0->regs[1]->iim_val * ptrsz) + 1);
        } else {
-               base_lo = create_uniform_indirect(b, ubo, ir3_get_addr0(ctx, src0, ptrsz));
-               base_hi = create_uniform_indirect(b, ubo + 1, ir3_get_addr0(ctx, src0, ptrsz));
+               base_lo = create_uniform_indirect(b, ubo, TYPE_U32, ir3_get_addr0(ctx, src0, ptrsz));
+               base_hi = create_uniform_indirect(b, ubo + 1, TYPE_U32, ir3_get_addr0(ctx, src0, ptrsz));
 
                /* NOTE: since relative addressing is used, make sure constlen is
                 * at least big enough to cover all the UBO addresses, since the
@@ -1524,6 +1524,7 @@ emit_intrinsic(struct ir3_context *ctx, nir_intrinsic_instr *intr)
                        src = ir3_get_src(ctx, &intr->src[0]);
                        for (int i = 0; i < dest_components; i++) {
                                dst[i] = create_uniform_indirect(b, idx + i,
+                                               nir_dest_bit_size(intr->dest) == 16 ? TYPE_F16 : TYPE_F32,
                                                ir3_get_addr0(ctx, src[0], 1));
                        }
                        /* NOTE: if relative addressing is used, we set