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ac: add 8-bit and 16-bit supports to get_reduction_identity()

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset 2019-11-08 16:35:45 +01:00
parent c8af1d51d4
commit ef352a2466
1 changed files with 33 additions and 1 deletions
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34
src/amd/llvm/ac_llvm_build.c
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@ -3904,7 +3904,39 @@ ac_build_set_inactive(struct ac_llvm_context *ctx, LLVMValueRef src,
static LLVMValueRef
get_reduction_identity(struct ac_llvm_context *ctx, nir_op op, unsigned type_size)
{
if (type_size == 4) {
if (type_size == 1) {
switch (op) {
case nir_op_iadd: return ctx->i8_0;
case nir_op_imul: return ctx->i8_1;
case nir_op_imin: return LLVMConstInt(ctx->i8, INT8_MAX, 0);
case nir_op_umin: return LLVMConstInt(ctx->i8, UINT8_MAX, 0);
case nir_op_imax: return LLVMConstInt(ctx->i8, INT8_MIN, 0);
case nir_op_umax: return ctx->i8_0;
case nir_op_iand: return LLVMConstInt(ctx->i8, -1, 0);
case nir_op_ior: return ctx->i8_0;
case nir_op_ixor: return ctx->i8_0;
default:
unreachable("bad reduction intrinsic");
}
} else if (type_size == 2) {
switch (op) {
case nir_op_iadd: return ctx->i16_0;
case nir_op_fadd: return ctx->f16_0;
case nir_op_imul: return ctx->i16_1;
case nir_op_fmul: return ctx->f16_1;
case nir_op_imin: return LLVMConstInt(ctx->i16, INT16_MAX, 0);
case nir_op_umin: return LLVMConstInt(ctx->i16, UINT16_MAX, 0);
case nir_op_fmin: return LLVMConstReal(ctx->f16, INFINITY);
case nir_op_imax: return LLVMConstInt(ctx->i16, INT16_MIN, 0);
case nir_op_umax: return ctx->i16_0;
case nir_op_fmax: return LLVMConstReal(ctx->f16, -INFINITY);
case nir_op_iand: return LLVMConstInt(ctx->i16, -1, 0);
case nir_op_ior: return ctx->i16_0;
case nir_op_ixor: return ctx->i16_0;
default:
unreachable("bad reduction intrinsic");
}
} else if (type_size == 4) {
switch (op) {
case nir_op_iadd: return ctx->i32_0;
case nir_op_fadd: return ctx->f32_0;