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authorMike Blumenkrantz <michael.blumenkrantz@gmail.com>2024-02-08 13:14:37 -0500
committerEric Engestrom <eric@engestrom.ch>2024-02-15 18:07:03 +0000
commit0675801f72a930f3f2c1c01475f6f68aede876f2 (patch)
tree7f967b341b52720f802fe5756fabeeca3b10a64d
parenta77f728e1ad5b75bad2abcaabe21fb003749d4ee (diff)
downloadmesa3d-0675801f72a930f3f2c1c01475f6f68aede876f2.tar.gz
nir/lower_io: fix handling for compact arrays with indirect derefs
this logic relies on constant indexing for compact arrays, but this is frequently not the case for compact array builtins (e.g., gl_TessLevelOuter). the usual strategy of lowering to temps isn't viable in TCS, which means io lowering has to be able to handle indirect access to these builtins without crashing cc: mesa-stable Reviewed-by: Dave Airlie <airlied@redhat.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27534> (cherry picked from commit 9e2c7314f2867de6f43e2add992590cfb92ccddd)
-rw-r--r--.pick_status.json2
-rw-r--r--src/compiler/nir/nir_lower_io.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/.pick_status.json b/.pick_status.json
index 864a0ab7f1c..17da736709a 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -664,7 +664,7 @@
"description": "nir/lower_io: fix handling for compact arrays with indirect derefs",
"nominated": true,
"nomination_type": 0,
- "resolution": 0,
+ "resolution": 1,
"main_sha": null,
"because_sha": null,
"notes": null
diff --git a/src/compiler/nir/nir_lower_io.c b/src/compiler/nir/nir_lower_io.c
index 58d696677fd..54db3ff4121 100644
--- a/src/compiler/nir/nir_lower_io.c
+++ b/src/compiler/nir/nir_lower_io.c
@@ -216,7 +216,7 @@ get_io_offset(nir_builder *b, nir_deref_instr *deref,
p++;
}
- if (path.path[0]->var->data.compact) {
+ if (path.path[0]->var->data.compact && nir_src_is_const((*p)->arr.index)) {
assert((*p)->deref_type == nir_deref_type_array);
assert(glsl_type_is_scalar((*p)->type));