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Implement Pointers and References This change implements pointers and references as described by the WGSL specification change in https://github.com/gpuweb/gpuweb/pull/1569. reader/spirv: * Now emits address-of `&expr` and indirection `*expr` operators as needed. * As an identifier may now resolve to a pointer or reference type depending on whether the declaration is a `var`, `let` or parameter, `Function::identifier_values_` has been changed from an ID set to an ID -> Type* map. resolver: * Now correctly resolves all expressions to either a value type, reference type or pointer type. * Validates pointer / reference rules on assignment, `var` and `let` construction, and usage. * Handles the address-of and indirection operators. * No longer does any implicit loads of pointer types. * Storage class validation is still TODO (crbug.com/tint/809) writer/spirv: * Correctly handles variables and expressions of pointer and reference types, emitting OpLoads where necessary. test: * Lots of new test cases Fixed: tint:727 Change-Id: I77d3281590e35e5a3122f5b74cdeb71a6fe51f74 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50740 Commit-Queue: Ben Clayton <bclayton@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: David Neto <dneto@google.com>
2021-05-18 10:28:48 +00:00
#include <metal_stdlib>
using namespace metal;
struct S {
int i;
};
spirv-reader: switch to HLSL-style pipeline IO - When storing to sample_mask output, write to the 0th element - Only make a return struct if it has members - Adjust type signedness coercion when loading special builtins. - Adapt tests - Update expectations for end-to-end tests - Handle sample_mask with stride Input variables normally don't have layout. But they can have it up through SPIR-V 1.4. Handle this case in the SPIR-V reader, by seeing through the intermediate alias type created for the strided array type. Bug: tint:508 Change-Id: I0f19dc1305d3f250dbbc0698a602288c34245274 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54743 Auto-Submit: David Neto <dneto@google.com> Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com>
2021-06-17 09:10:04 +00:00
void main_1() {
Implement Pointers and References This change implements pointers and references as described by the WGSL specification change in https://github.com/gpuweb/gpuweb/pull/1569. reader/spirv: * Now emits address-of `&expr` and indirection `*expr` operators as needed. * As an identifier may now resolve to a pointer or reference type depending on whether the declaration is a `var`, `let` or parameter, `Function::identifier_values_` has been changed from an ID set to an ID -> Type* map. resolver: * Now correctly resolves all expressions to either a value type, reference type or pointer type. * Validates pointer / reference rules on assignment, `var` and `let` construction, and usage. * Handles the address-of and indirection operators. * No longer does any implicit loads of pointer types. * Storage class validation is still TODO (crbug.com/tint/809) writer/spirv: * Correctly handles variables and expressions of pointer and reference types, emitting OpLoads where necessary. test: * Lots of new test cases Fixed: tint:727 Change-Id: I77d3281590e35e5a3122f5b74cdeb71a6fe51f74 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50740 Commit-Queue: Ben Clayton <bclayton@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: David Neto <dneto@google.com>
2021-05-18 10:28:48 +00:00
int i = 0;
S V = {};
int const x_14 = V.i;
i = x_14;
return;
}
spirv-reader: switch to HLSL-style pipeline IO - When storing to sample_mask output, write to the 0th element - Only make a return struct if it has members - Adjust type signedness coercion when loading special builtins. - Adapt tests - Update expectations for end-to-end tests - Handle sample_mask with stride Input variables normally don't have layout. But they can have it up through SPIR-V 1.4. Handle this case in the SPIR-V reader, by seeing through the intermediate alias type created for the strided array type. Bug: tint:508 Change-Id: I0f19dc1305d3f250dbbc0698a602288c34245274 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54743 Auto-Submit: David Neto <dneto@google.com> Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com>
2021-06-17 09:10:04 +00:00
kernel void tint_symbol() {
main_1();
return;
}