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pan/bi: Handle standard FMA conversions

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These are plain old 1-sources so they're easy to start with.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4382>
This commit is contained in:
Alyssa Rosenzweig 2020-03-27 19:06:28 -04:00 • committed by Marge Bot
parent 499e97b519
commit 57a8e6e8d0
1 changed files with 12 additions and 3 deletions
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15
src/panfrost/bifrost/bi_pack.c
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@ -609,9 +609,11 @@ bi_pack_fma_convert(bi_instruction *ins, struct bi_registers *regs)
{
nir_alu_type from_base = nir_alu_type_get_base_type(ins->src_types[0]);
unsigned from_size = nir_alu_type_get_type_size(ins->src_types[0]);
bool from_unsigned = from_base == nir_type_uint;
nir_alu_type to_base = nir_alu_type_get_base_type(ins->dest_type);
unsigned to_size = nir_alu_type_get_type_size(ins->dest_type);
bool to_unsigned = to_base == nir_type_uint;
/* Sanity check */
assert((from_base != to_base) || (from_size != to_size));
@ -620,14 +622,21 @@ bi_pack_fma_convert(bi_instruction *ins, struct bi_registers *regs)
if (from_size == 16 && to_size == 16) {
/* f2i_i2f16 */
} else if (from_size == 32 && to_size == 32) {
unsigned op = 0;
if (from_base == nir_type_float) {
/* float32_to_int */
op = BIFROST_FMA_FLOAT32_TO_INT(to_unsigned);
} else {
/* int_to_float32 */
op = BIFROST_FMA_INT_TO_FLOAT32(from_unsigned);
}
return bi_pack_fma_1src(ins, regs, op);
} else if (from_size == 16 && to_size == 32) {
bool from_y = ins->swizzle[0][0];
if (from_base == nir_type_float) {
/* float16_to_32 */
return bi_pack_fma_1src(ins, regs,
BIFROST_FMA_FLOAT16_TO_32(from_y));
} else {
/* int16_to_32 */
}