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pan/bi: Add helpers to generate bi_index from NIR 

Corresponding to the existing pan_{...}_index helpers, except returning
a new-style index instead.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8215>
This commit is contained in:
Alyssa Rosenzweig 2020-12-11 20:03:02 -05:00
parent fc760e7d66
commit 2d9147dae4
1 changed files with 28 additions and 0 deletions
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28
src/panfrost/bifrost/compiler.h
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@ -741,6 +741,34 @@ bi_make_temp_reg(bi_context *ctx)
return ((ctx->impl->reg_alloc + ctx->temp_alloc++) << 1) | PAN_IS_REG;
}
/* Inline constants automatically, will be lowered out by bi_lower_fau where a
* constant is not allowed. load_const_to_scalar gaurantees that this makes
* sense */
static inline bi_index
bi_src_index(nir_src *src)
{
if (nir_src_is_const(*src))
return bi_imm_u32(nir_src_as_uint(*src));
else if (src->is_ssa)
return bi_get_index(src->ssa->index, false, 0);
else {
assert(!src->reg.indirect);
return bi_get_index(src->reg.reg->index, true, 0);
}
}
static inline bi_index
bi_dest_index(nir_dest *dst)
{
if (dst->is_ssa)
return bi_get_index(dst->ssa.index, false, 0);
else {
assert(!dst->reg.indirect);
return bi_get_index(dst->reg.reg->index, true, 0);
}
}
/* Iterators for Bifrost IR */
#define bi_foreach_block(ctx, v) \