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pan/bi: Assign constant port for branch offsets 

By convention.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5260>
This commit is contained in:
Alyssa Rosenzweig 2020-05-28 13:27:31 -04:00 committed by Marge Bot
parent cdff3ebc9a
commit cd9a08d4f2
1 changed files with 18 additions and 0 deletions
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18
src/panfrost/bifrost/bi_pack.c
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@ -123,6 +123,24 @@ bi_assign_uniform_constant_single(
return true;
}
if (ins->type == BI_BRANCH && clause->branch_constant) {
/* By convention branch constant is last */
unsigned idx = clause->constant_count - 1;
/* We can only jump to clauses which are qword aligned so the
* bottom 4-bits of the offset are necessarily 0 */
unsigned lo = 0;
/* Build the constant */
unsigned C = bi_constant_field(idx) | lo;
if (assigned && regs->uniform_constant != C)
unreachable("Mismatched uniform/const field: branch");
regs->uniform_constant = C;
return true;
}
bi_foreach_src(ins, s) {
if (s == 0 && (ins->type == BI_LOAD_VAR_ADDRESS || ins->type == BI_LOAD_ATTR)) continue;
if (s == 1 && (ins->type == BI_BRANCH)) continue;