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Fast isel dislikes 1-bit function arguments #4354

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Fast isel dislikes 1-bit function arguments#4354
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A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.A-codegenArea: Code generationI-slowIssue: Problems and improvements with respect to performance of generated code.
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0.7
@pcwalton

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@pcwalton
pcwalton
opened on Jan 5, 2013

This means that any function that calls a Rust function with a bool argument causes a fast isel bailout. We should represent bool as i8.

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    A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.A-codegenArea: Code generationI-slowIssue: Problems and improvements with respect to performance of generated code.

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