JIT: ensure AVX512 ternary operands aren't used twice #91851
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Don't spill unused zeros early; we might decide to use them later. Fixes dotnet#91796.
ghost
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Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch Issue DetailsDon't spill unused zeros early; we might decide to use them later. Fixes #91796.
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@tannergooding PTAL |
| @@ -3602,17 +3602,19 @@ GenTree* Compiler::impSpecialIntrinsic(NamedIntrinsic intrinsic, | |||
| op2 = impSIMDPopStack(); | |||
| op1 = impSIMDPopStack(); | |||
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| if (unusedVal1) | |||
| // Consume operands we won't use, in case they have side effects. | |||
| // | |||
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SPMI failure is #91838. |
tannergooding
approved these changes
Sep 10, 2023
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/backport to release/8.0 |
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Started backporting to release/8.0: https://github.com/dotnet/runtime/actions/runs/6147770666 |
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Don't spill unused zeros early; we might decide to use them later.
Fixes #91796.