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f47887d207
And remove the WrapArraysInStructs transform. Wrapping arrays in structures becomes troublesome for `const` arrays, as currently WGSL does not allow `const` structures. MSL 2.0+ has a builtin array<> helper, but we're targetting MSL 1.2, so we have to emit our own. Fortunately, it can be done with a few lines of templated code. This produces significantly cleaner output. Change-Id: Ifc92ef21e09befa252a07c856c4b5afdc51cc2e4 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94540 Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@chromium.org> Reviewed-by: David Neto <dneto@google.com>
60 lines
1.6 KiB
Plaintext
60 lines
1.6 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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template<typename T, size_t N>
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struct tint_array {
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const constant T& operator[](size_t i) const constant { return elements[i]; }
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device T& operator[](size_t i) device { return elements[i]; }
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const device T& operator[](size_t i) const device { return elements[i]; }
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thread T& operator[](size_t i) thread { return elements[i]; }
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const thread T& operator[](size_t i) const thread { return elements[i]; }
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threadgroup T& operator[](size_t i) threadgroup { return elements[i]; }
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const threadgroup T& operator[](size_t i) const threadgroup { return elements[i]; }
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T elements[N];
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};
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struct S {
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int a;
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float4 b;
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float2x2 c;
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};
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int idx1(thread uint* const tint_symbol_5) {
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*(tint_symbol_5) = (*(tint_symbol_5) + 1u);
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return 1;
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}
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int idx2(thread uint* const tint_symbol_6) {
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*(tint_symbol_6) = (*(tint_symbol_6) + 2u);
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return 1;
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}
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int idx3(thread uint* const tint_symbol_7) {
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*(tint_symbol_7) = (*(tint_symbol_7) + 3u);
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return 1;
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}
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void foo(thread uint* const tint_symbol_8) {
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tint_array<float, 4> a = tint_array<float, 4>{};
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int const tint_symbol_2 = idx1(tint_symbol_8);
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int const tint_symbol_save = tint_symbol_2;
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{
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a[tint_symbol_save] = (a[tint_symbol_save] * 2.0f);
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while (true) {
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int const tint_symbol_3 = idx2(tint_symbol_8);
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if (!((a[tint_symbol_3] < 10.0f))) {
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break;
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}
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{
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}
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{
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int const tint_symbol_4 = idx3(tint_symbol_8);
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int const tint_symbol_1_save = tint_symbol_4;
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a[tint_symbol_1_save] = (a[tint_symbol_1_save] + 1.0f);
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}
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}
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}
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}
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