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, "");
}
}
