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tint/writer/msl: Move packed_vector hacks to transform

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Attempting to paper over all the MSL standard library holes for packed_vector in the MSL writer added complexity to the writer, produced messy output, and didn't actually catch all the cases where casts were needed.

Add a new PackedVec3 transform that applies the packed_vector -> vec casts in a smarter, more precise way.

Fixed: tint:1534
Change-Id: I73ce7e5a62fbc9cb04e1093133070f5fb8965dce
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107340
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
This commit is contained in:
Ben Clayton
2022-10-27 14:36:49 +00:00
committed by Dawn LUCI CQ
parent 59c0982426
commit a92f4259d5
53 changed files with 1070 additions and 379 deletions
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2
test/tint/expressions/binary/left-shift/vector-vector/i32.wgsl.expected.msl
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@@ -4,7 +4,7 @@ using namespace metal;
kernel void f() {
int3 const a = int3(1, 2, 3);
uint3 const b = uint3(4u, 5u, 6u);
int3 const r = as_type<int3>((as_type<uint3>(int3(a)) << b));
int3 const r = as_type<int3>((as_type<uint3>(a) << b));
return;
}