tree e86093e2be77dbdff1422799919a586fbc72813f
parent 25d564157b87b683d8f8f50aa773f6a384d1aacf
author Zhaoming Jiang <zhaoming.jiang@intel.com> 1666772605 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1666772605 +0000

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>