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0e22bdbae7
In order to avoid declaring too many function parameters, we previously modified this transform to redeclare private variables that are only used inside a single function as function-scope variables. This was broken as it meant that their values did not persist across multiple calls to the same function. Instead, wrap all private variables in a structure and pass it around as a pointer. Fixed: tint:1875 Change-Id: I83f5eb1071d57b9c6af56d6cf21b3a32c6e94260 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/124800 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Commit-Queue: James Price <jrprice@google.com>
33 lines
1.3 KiB
Plaintext
33 lines
1.3 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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struct tint_private_vars_struct {
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int a;
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float b;
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};
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int tint_div(int lhs, int rhs) {
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return (lhs / select(rhs, 1, bool((rhs == 0) | bool((lhs == (-2147483647 - 1)) & (rhs == -1)))));
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}
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int tint_mod(int lhs, int rhs) {
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int const rhs_or_one = select(rhs, 1, bool((rhs == 0) | bool((lhs == (-2147483647 - 1)) & (rhs == -1))));
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if (any(((uint((lhs | rhs_or_one)) & 2147483648u) != 0u))) {
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return as_type<int>((as_type<uint>(lhs) - as_type<uint>(as_type<int>((as_type<uint>((lhs / rhs_or_one)) * as_type<uint>(rhs_or_one))))));
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} else {
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return (lhs % rhs_or_one);
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}
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}
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void foo(int maybe_zero, thread tint_private_vars_struct* const tint_private_vars) {
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(*(tint_private_vars)).a = tint_div((*(tint_private_vars)).a, 0);
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(*(tint_private_vars)).a = tint_mod((*(tint_private_vars)).a, 0);
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(*(tint_private_vars)).a = tint_div((*(tint_private_vars)).a, maybe_zero);
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(*(tint_private_vars)).a = tint_mod((*(tint_private_vars)).a, maybe_zero);
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(*(tint_private_vars)).b = ((*(tint_private_vars)).b / 0.0f);
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(*(tint_private_vars)).b = fmod((*(tint_private_vars)).b, 0.0f);
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(*(tint_private_vars)).b = ((*(tint_private_vars)).b / float(maybe_zero));
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(*(tint_private_vars)).b = fmod((*(tint_private_vars)).b, float(maybe_zero));
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}
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