[tint] Implement quadBroadcast
Implement WGSL builtin quadBroadcast in the SPIR-V IR backend, MSL
AST and IR backends and HLSL AST and IR backends. Subgroup builtins
are not yet implemented for the GLSL backend.
Constness of the ID arg is validated in the resolver, and a polyfill is
implemented in the SPIR-V backend to bitcast signed integer IDs to
unsigned.
Validation against negative ID args has been added for both
subgroupBroadcast and quadBroadcast.
Bug: 354738715
Change-Id: Iadb9726113bb964d51bbf4788f5deae4ae85b6d5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/202374
Reviewed-by: dan sinclair <dsinclair@google.com>
Commit-Queue: Natalie Chouinard <chouinard@google.com>
diff --git a/test/tint/builtins/gen/literal/quadBroadcast/e6d948.wgsl b/test/tint/builtins/gen/literal/quadBroadcast/e6d948.wgsl
new file mode 100644
index 0000000..b216c67
--- /dev/null
+++ b/test/tint/builtins/gen/literal/quadBroadcast/e6d948.wgsl
@@ -0,0 +1,58 @@
+// Copyright 2024 The Dawn & Tint Authors
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this
+// list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+// this list of conditions and the following disclaimer in the documentation
+// and/or other materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+////////////////////////////////////////////////////////////////////////////////
+// File generated by 'tools/src/cmd/gen' using the template:
+// test/tint/builtins/gen/gen.wgsl.tmpl
+//
+// To regenerate run: './tools/run gen'
+//
+// Do not modify this file directly
+////////////////////////////////////////////////////////////////////////////////
+
+
+// [hlsl-dxc] flags: --hlsl_shader_model 60
+
+
+enable subgroups;
+@group(0) @binding(0) var<storage, read_write> prevent_dce : u32;
+
+
+// fn quadBroadcast(e: u32, @const id: u32) -> u32
+fn quadBroadcast_e6d948() -> u32{
+ var res: u32 = quadBroadcast(1u, 1u);
+ return res;
+}
+@fragment
+fn fragment_main() {
+ prevent_dce = quadBroadcast_e6d948();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+ prevent_dce = quadBroadcast_e6d948();
+}
