static void emit_pk2h(const struct lp_build_tgsi_action *action, struct lp_build_tgsi_context *bld_base, struct lp_build_emit_data *emit_data) { LLVMBuilderRef builder = bld_base->base.gallivm->builder; LLVMContextRef context = bld_base->base.gallivm->context; struct lp_build_context *uint_bld = &bld_base->uint_bld; LLVMTypeRef fp16, i16; LLVMValueRef const16, comp[2]; unsigned i; fp16 = LLVMHalfTypeInContext(context); i16 = LLVMInt16TypeInContext(context); const16 = lp_build_const_int32(uint_bld->gallivm, 16); for (i = 0; i < 2; i++) { comp[i] = LLVMBuildFPTrunc(builder, emit_data->args[i], fp16, ""); comp[i] = LLVMBuildBitCast(builder, comp[i], i16, ""); comp[i] = LLVMBuildZExt(builder, comp[i], uint_bld->elem_type, ""); } comp[1] = LLVMBuildShl(builder, comp[1], const16, ""); comp[0] = LLVMBuildOr(builder, comp[0], comp[1], ""); emit_data->output[emit_data->chan] = comp[0]; }
LLVMValueRef ac_build_cvt_pkrtz_f16(struct ac_llvm_context *ctx, LLVMValueRef args[2]) { if (HAVE_LLVM >= 0x0500) { LLVMTypeRef v2f16 = LLVMVectorType(LLVMHalfTypeInContext(ctx->context), 2); LLVMValueRef res = ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pkrtz", v2f16, args, 2, AC_FUNC_ATTR_READNONE); return LLVMBuildBitCast(ctx->builder, res, ctx->i32, ""); } return ac_build_intrinsic(ctx, "llvm.SI.packf16", ctx->i32, args, 2, AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_LEGACY); }
/* Initialize module-independent parts of the context. * * The caller is responsible for initializing ctx::module and ctx::builder. */ void ac_llvm_context_init(struct ac_llvm_context *ctx, LLVMContextRef context) { LLVMValueRef args[1]; ctx->context = context; ctx->module = NULL; ctx->builder = NULL; ctx->voidt = LLVMVoidTypeInContext(ctx->context); ctx->i1 = LLVMInt1TypeInContext(ctx->context); ctx->i8 = LLVMInt8TypeInContext(ctx->context); ctx->i16 = LLVMIntTypeInContext(ctx->context, 16); ctx->i32 = LLVMIntTypeInContext(ctx->context, 32); ctx->i64 = LLVMIntTypeInContext(ctx->context, 64); ctx->f16 = LLVMHalfTypeInContext(ctx->context); ctx->f32 = LLVMFloatTypeInContext(ctx->context); ctx->f64 = LLVMDoubleTypeInContext(ctx->context); ctx->v4i32 = LLVMVectorType(ctx->i32, 4); ctx->v4f32 = LLVMVectorType(ctx->f32, 4); ctx->v8i32 = LLVMVectorType(ctx->i32, 8); ctx->i32_0 = LLVMConstInt(ctx->i32, 0, false); ctx->i32_1 = LLVMConstInt(ctx->i32, 1, false); ctx->f32_0 = LLVMConstReal(ctx->f32, 0.0); ctx->f32_1 = LLVMConstReal(ctx->f32, 1.0); ctx->range_md_kind = LLVMGetMDKindIDInContext(ctx->context, "range", 5); ctx->invariant_load_md_kind = LLVMGetMDKindIDInContext(ctx->context, "invariant.load", 14); ctx->fpmath_md_kind = LLVMGetMDKindIDInContext(ctx->context, "fpmath", 6); args[0] = LLVMConstReal(ctx->f32, 2.5); ctx->fpmath_md_2p5_ulp = LLVMMDNodeInContext(ctx->context, args, 1); ctx->uniform_md_kind = LLVMGetMDKindIDInContext(ctx->context, "amdgpu.uniform", 14); ctx->empty_md = LLVMMDNodeInContext(ctx->context, NULL, 0); }
static void emit_up2h(const struct lp_build_tgsi_action *action, struct lp_build_tgsi_context *bld_base, struct lp_build_emit_data *emit_data) { LLVMBuilderRef builder = bld_base->base.gallivm->builder; LLVMContextRef context = bld_base->base.gallivm->context; struct lp_build_context *uint_bld = &bld_base->uint_bld; LLVMTypeRef fp16, i16; LLVMValueRef const16, input, val; unsigned i; fp16 = LLVMHalfTypeInContext(context); i16 = LLVMInt16TypeInContext(context); const16 = lp_build_const_int32(uint_bld->gallivm, 16); input = emit_data->args[0]; for (i = 0; i < 2; i++) { val = i == 1 ? LLVMBuildLShr(builder, input, const16, "") : input; val = LLVMBuildTrunc(builder, val, i16, ""); val = LLVMBuildBitCast(builder, val, fp16, ""); emit_data->output[i] = LLVMBuildFPExt(builder, val, bld_base->base.elem_type, ""); } }