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[SR-10785] A single line code makes compiler fail #53175

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swift-ci opened this issue May 29, 2019 · 2 comments
Open

[SR-10785] A single line code makes compiler fail #53175

swift-ci opened this issue May 29, 2019 · 2 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself performance type checker Area → compiler: Semantic analysis

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@swift-ci
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Previous ID SR-10785
Radar None
Original Reporter forucial (JIRA User)
Type Bug
Environment

OS: macOS 10.14.5

Xcode: 10.2.1

Swift: 5.0.1

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, Performance, TypeChecker
Assignee None
Priority Medium

md5: 450b9b21145f78dc00ed0ceaf915f4c7

Issue Description:

if 0.1 * 5 == 0.1 + 0.1 + 0.1 + 0.1 + 0.1 { }

This code makes compiler refused to compile and report

"The compiler is unable to type-check this expression in reasonable time; try breaking up the expression into distinct sub-expressions"

However such code

if 0.1 * 4 == 0.1 + 0.1 + 0.1 + 0.1 { }

is accepted without any error.
@belkadan
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cc @xedin (probably not worth tracking separately from the others)

@gregomni
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gregomni commented Aug 3, 2019

I can't reproduce this one with either the Xcode 11.0 b5 compiler, or the current nightly toolchain.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself performance type checker Area → compiler: Semantic analysis
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@belkadan @swift-ci @gregomni