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66d6668372
Implement new transform UnwindDiscardFunctions that replaces discard statements with setting a module-level bool, adds a check and return for this bool after every function call that may discard, and finally invokes a single function that executes a discard from top-level functions. Regenerated tests and remove HLSL ones that used to fail FXC because it had difficulty with discard. Bug: tint:1478 Bug: chromium:1118 Change-Id: I09d680f59e2d5d0cad907bfbbdd426aae76d4bf3 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/84221 Reviewed-by: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Antonio Maiorano <amaiorano@google.com>
33 lines
610 B
Plaintext
33 lines
610 B
Plaintext
bug/tint/1369.wgsl:3:3 warning: code is unreachable
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return true;
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^^^^^^
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bug/tint/1369.wgsl:9:9 warning: code is unreachable
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var also_unreachable : bool;
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^^^^^^^^^^^^^^^^
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#include <metal_stdlib>
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using namespace metal;
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bool call_discard(thread bool* const tint_symbol) {
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*(tint_symbol) = true;
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return bool();
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return true;
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}
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void tint_discard_func() {
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discard_fragment();
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}
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fragment void f() {
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thread bool tint_symbol_1 = false;
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bool v = call_discard(&(tint_symbol_1));
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if (tint_symbol_1) {
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tint_discard_func();
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return;
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}
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bool also_unreachable = false;
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return;
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}
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