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3 Commits

Author SHA1 Message Date
Zhaoming Jiang 4faf3581b8 Tint/builder/spirv: Fix atomicCompareExchangeWeak wrong return 
This CL fix the spv code generated for atomicCompareExchangeWeak,
specifically the emulated `exchanged` field of the returned struct.
It should be true if and only if the `old_value`, i.e. the return value
of spv `OpAtomicCompareExchange`, equals to the comparator, rather than
equals to new value.

Fixed: tint:1663
Change-Id: I1cb0de6bb6b90ae681f5053b8bdd6f6b247146f6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107180
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
 2022-10-26 08:23:25 +00:00
Antonio Maiorano f99671b830 tint: spir-v reader: fix atomicCompareExchangeWeak with var comparator 
Also fix HLSL generator to unwrap the ref type when emitting the
comparator value.

Bug: tint:1185
Change-Id: I01d04ca6357e72fd5ead0f25012ab39794e65da5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94522
Reviewed-by: Ben Clayton <bclayton@chromium.org>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
 2022-06-23 13:14:54 +00:00
Ben Clayton c0af5c5c9c tint: Add builtin tests for arguments passed by var 
Change-Id: I81b69d23e40675d7f525e6369afec9aa0659d043
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/92321
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
 2022-06-02 14:36:10 +00:00