commit 5702df1d368de93eddebb815b482567bd48f39c1
author James Price <jrprice@google.com> Mon Jun 19 21:44:30 2023 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> Mon Jun 19 21:44:30 2023 +0000
tree e42d79fd957fe29616aa4158d05066f6bc581f4c
parent 4915adcccaf98049d9e03e7306d03eec1c598310

[spirv-reader] Detect constant vector splats

When all operands to an OpConstantComposite for a vector type are the
same, use a vector splat.

Change-Id: I53680e1c8a1589ab0b2047fb6cfdaaae2ba5b654
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/137882
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: James Price <jrprice@google.com>

test/tint/ptr_ref/access/matrix.spvasm.expected.wgsl

diff --git a/test/tint/ptr_ref/access/matrix.spvasm.expected.wgsl b/test/tint/ptr_ref/access/matrix.spvasm.expected.wgsl
index c5a058a..e80cd30 100644
--- a/test/tint/ptr_ref/access/matrix.spvasm.expected.wgsl
+++ b/test/tint/ptr_ref/access/matrix.spvasm.expected.wgsl
@@ -1,7 +1,7 @@
 fn main_1() {
   var m = mat3x3f();
   m = mat3x3f(vec3f(1.0f, 2.0f, 3.0f), vec3f(4.0f, 5.0f, 6.0f), vec3f(7.0f, 8.0f, 9.0f));
-  m[1i] = vec3f(5.0f, 5.0f, 5.0f);
+  m[1i] = vec3f(5.0f);
   return;
 }