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storageBarrier() has workgroup memory scope

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The storageBarrier() builtin causes flushes to be visible to
all invocations within a workgroup, not the whole device.
The limitation is inherited from Metal.

Fixes: tint:1310
Change-Id: I6f94faa88bd3c7b6cec0601312c6c65a907c5973
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/69800
Auto-Submit: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
This commit is contained in:
David Neto
2021-11-22 20:47:37 +00:00
committed by Tint LUCI CQ
parent bc5d8f6bcf
commit e85efca13f
3 changed files with 7 additions and 9 deletions
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9
test/intrinsics/gen/storageBarrier/d87211.wgsl.expected.spvasm
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@@ -1,7 +1,7 @@
; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 13
; Bound: 12
; Schema: 0
OpCapability Shader
OpMemoryModel Logical GLSL450
@@ -13,15 +13,14 @@
%1 = OpTypeFunction %void
%uint = OpTypeInt 32 0
%uint_2 = OpConstant %uint 2
%uint_1 = OpConstant %uint 1
%uint_72 = OpConstant %uint 72
%storageBarrier_d87211 = OpFunction %void None %1
%4 = OpLabel
OpControlBarrier %uint_2 %uint_1 %uint_72
OpControlBarrier %uint_2 %uint_2 %uint_72
OpReturn
OpFunctionEnd
%compute_main = OpFunction %void None %1
%11 = OpLabel
%12 = OpFunctionCall %void %storageBarrier_d87211
%10 = OpLabel
%11 = OpFunctionCall %void %storageBarrier_d87211
OpReturn
OpFunctionEnd