radeonsi/ac: move frag interp emission code to shared llvm code.
This code should be used in radv, so move it to a shared location in advance of doing that. Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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b940b2fd16
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dc68b920df
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@ -512,3 +512,74 @@ ac_dump_module(LLVMModuleRef module)
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fprintf(stderr, "%s", str);
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LLVMDisposeMessage(str);
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}
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LLVMValueRef
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ac_build_fs_interp(struct ac_llvm_context *ctx,
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LLVMValueRef llvm_chan,
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LLVMValueRef attr_number,
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LLVMValueRef params,
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LLVMValueRef i,
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LLVMValueRef j)
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{
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LLVMValueRef args[5];
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LLVMValueRef p1;
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if (HAVE_LLVM < 0x0400) {
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LLVMValueRef ij[2];
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ij[0] = LLVMBuildBitCast(ctx->builder, i, ctx->i32, "");
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ij[1] = LLVMBuildBitCast(ctx->builder, j, ctx->i32, "");
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args[0] = llvm_chan;
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args[1] = attr_number;
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args[2] = params;
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args[3] = ac_build_gather_values(ctx, ij, 2);
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return ac_emit_llvm_intrinsic(ctx, "llvm.SI.fs.interp",
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ctx->f32, args, 4,
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AC_FUNC_ATTR_READNONE);
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}
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args[0] = i;
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args[1] = llvm_chan;
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args[2] = attr_number;
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args[3] = params;
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p1 = ac_emit_llvm_intrinsic(ctx, "llvm.amdgcn.interp.p1",
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ctx->f32, args, 4, AC_FUNC_ATTR_READNONE);
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args[0] = p1;
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args[1] = j;
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args[2] = llvm_chan;
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args[3] = attr_number;
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args[4] = params;
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return ac_emit_llvm_intrinsic(ctx, "llvm.amdgcn.interp.p2",
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ctx->f32, args, 5, AC_FUNC_ATTR_READNONE);
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}
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LLVMValueRef
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ac_build_fs_interp_mov(struct ac_llvm_context *ctx,
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LLVMValueRef parameter,
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LLVMValueRef llvm_chan,
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LLVMValueRef attr_number,
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LLVMValueRef params)
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{
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LLVMValueRef args[4];
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if (HAVE_LLVM < 0x0400) {
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args[0] = llvm_chan;
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args[1] = attr_number;
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args[2] = params;
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return ac_emit_llvm_intrinsic(ctx,
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"llvm.SI.fs.constant",
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ctx->f32, args, 3,
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AC_FUNC_ATTR_READNONE);
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}
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args[0] = parameter;
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args[1] = llvm_chan;
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args[2] = attr_number;
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args[3] = params;
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return ac_emit_llvm_intrinsic(ctx, "llvm.amdgcn.interp.mov",
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ctx->f32, args, 4, AC_FUNC_ATTR_READNONE);
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}
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@ -98,6 +98,20 @@ ac_prepare_cube_coords(struct ac_llvm_context *ctx,
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void
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ac_dump_module(LLVMModuleRef module);
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LLVMValueRef
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ac_build_fs_interp(struct ac_llvm_context *ctx,
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LLVMValueRef llvm_chan,
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LLVMValueRef attr_number,
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LLVMValueRef params,
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LLVMValueRef i,
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LLVMValueRef j);
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LLVMValueRef
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ac_build_fs_interp_mov(struct ac_llvm_context *ctx,
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LLVMValueRef parameter,
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LLVMValueRef llvm_chan,
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LLVMValueRef attr_number,
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LLVMValueRef params);
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#ifdef __cplusplus
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}
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#endif
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@ -1281,80 +1281,6 @@ static int lookup_interp_param_index(unsigned interpolate, unsigned location)
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}
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}
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static LLVMValueRef build_fs_interp(
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struct lp_build_tgsi_context *bld_base,
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LLVMValueRef llvm_chan,
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LLVMValueRef attr_number,
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LLVMValueRef params,
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LLVMValueRef i,
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LLVMValueRef j) {
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struct si_shader_context *ctx = si_shader_context(bld_base);
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struct gallivm_state *gallivm = bld_base->base.gallivm;
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LLVMValueRef args[5];
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LLVMValueRef p1;
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if (HAVE_LLVM < 0x0400) {
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LLVMValueRef ij[2];
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ij[0] = LLVMBuildBitCast(gallivm->builder, i, ctx->i32, "");
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ij[1] = LLVMBuildBitCast(gallivm->builder, j, ctx->i32, "");
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args[0] = llvm_chan;
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args[1] = attr_number;
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args[2] = params;
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args[3] = lp_build_gather_values(gallivm, ij, 2);
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return lp_build_intrinsic(gallivm->builder, "llvm.SI.fs.interp",
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ctx->f32, args, 4,
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LP_FUNC_ATTR_READNONE);
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}
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args[0] = i;
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args[1] = llvm_chan;
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args[2] = attr_number;
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args[3] = params;
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p1 = lp_build_intrinsic(gallivm->builder, "llvm.amdgcn.interp.p1",
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ctx->f32, args, 4, LP_FUNC_ATTR_READNONE);
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args[0] = p1;
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args[1] = j;
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args[2] = llvm_chan;
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args[3] = attr_number;
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args[4] = params;
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return lp_build_intrinsic(gallivm->builder, "llvm.amdgcn.interp.p2",
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ctx->f32, args, 5, LP_FUNC_ATTR_READNONE);
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}
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static LLVMValueRef build_fs_interp_mov(
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struct lp_build_tgsi_context *bld_base,
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LLVMValueRef parameter,
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LLVMValueRef llvm_chan,
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LLVMValueRef attr_number,
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LLVMValueRef params) {
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struct si_shader_context *ctx = si_shader_context(bld_base);
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struct gallivm_state *gallivm = bld_base->base.gallivm;
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LLVMValueRef args[4];
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if (HAVE_LLVM < 0x0400) {
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args[0] = llvm_chan;
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args[1] = attr_number;
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args[2] = params;
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return lp_build_intrinsic(gallivm->builder,
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"llvm.SI.fs.constant",
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ctx->f32, args, 3,
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LP_FUNC_ATTR_READNONE);
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}
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args[0] = parameter;
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args[1] = llvm_chan;
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args[2] = attr_number;
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args[3] = params;
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return lp_build_intrinsic(gallivm->builder, "llvm.amdgcn.interp.mov",
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ctx->f32, args, 4, LP_FUNC_ATTR_READNONE);
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}
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/**
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* Interpolate a fragment shader input.
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*
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@ -1438,17 +1364,17 @@ static void interp_fs_input(struct si_shader_context *ctx,
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LLVMValueRef front, back;
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if (interp) {
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front = build_fs_interp(bld_base, llvm_chan,
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front = ac_build_fs_interp(&ctx->ac, llvm_chan,
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attr_number, prim_mask,
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i, j);
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back = build_fs_interp(bld_base, llvm_chan,
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back = ac_build_fs_interp(&ctx->ac, llvm_chan,
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back_attr_number, prim_mask,
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i, j);
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} else {
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front = build_fs_interp_mov(bld_base,
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front = ac_build_fs_interp_mov(&ctx->ac,
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lp_build_const_int32(gallivm, 2), /* P0 */
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llvm_chan, attr_number, prim_mask);
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back = build_fs_interp_mov(bld_base,
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back = ac_build_fs_interp_mov(&ctx->ac,
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lp_build_const_int32(gallivm, 2), /* P0 */
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llvm_chan, back_attr_number, prim_mask);
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}
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@ -1461,12 +1387,12 @@ static void interp_fs_input(struct si_shader_context *ctx,
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}
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} else if (semantic_name == TGSI_SEMANTIC_FOG) {
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if (interp) {
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result[0] = build_fs_interp(bld_base, uint->zero,
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attr_number, prim_mask, i, j);
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result[0] = ac_build_fs_interp(&ctx->ac, uint->zero,
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attr_number, prim_mask, i, j);
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} else {
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result[0] = build_fs_interp_mov(bld_base, uint->zero,
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lp_build_const_int32(gallivm, 2), /* P0 */
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attr_number, prim_mask);
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result[0] = ac_build_fs_interp_mov(&ctx->ac, uint->zero,
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lp_build_const_int32(gallivm, 2), /* P0 */
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attr_number, prim_mask);
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}
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result[1] =
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result[2] = lp_build_const_float(gallivm, 0.0f);
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@ -1476,10 +1402,10 @@ static void interp_fs_input(struct si_shader_context *ctx,
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LLVMValueRef llvm_chan = lp_build_const_int32(gallivm, chan);
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if (interp) {
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result[chan] = build_fs_interp(bld_base,
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result[chan] = ac_build_fs_interp(&ctx->ac,
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llvm_chan, attr_number, prim_mask, i, j);
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} else {
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result[chan] = build_fs_interp_mov(bld_base,
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result[chan] = ac_build_fs_interp_mov(&ctx->ac,
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lp_build_const_int32(gallivm, 2), /* P0 */
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llvm_chan, attr_number, prim_mask);
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}
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gallivm->builder, interp_param, uint->zero, "");
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LLVMValueRef j = LLVMBuildExtractElement(
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gallivm->builder, interp_param, uint->one, "");
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emit_data->output[chan] = build_fs_interp(bld_base,
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emit_data->output[chan] = ac_build_fs_interp(&ctx->ac,
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llvm_chan, attr_number, params,
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i, j);
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} else {
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emit_data->output[chan] = build_fs_interp_mov(bld_base,
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emit_data->output[chan] = ac_build_fs_interp_mov(&ctx->ac,
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lp_build_const_int32(gallivm, 2), /* P0 */
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llvm_chan, attr_number, params);
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}
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