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@stephentyrone stephentyrone commented Jan 13, 2017

I originally planned to have these be static inline, but had to back that out due to SR-2089. That's resolved now though, so this should work, and allow constant folding through square root and remainder.
rdar://problem/30004033

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@swift-ci Please test.

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jrose-apple commented Jan 13, 2017

Can you add a test that shows the constant-folding does happen under -O?

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stephentyrone commented Jan 13, 2017

@jrose-apple yes, but it'll need to wait until I'm on a machine where I can actually build and run tests =)

I'll take a look at it tomorrow.

@stephentyrone stephentyrone requested a review from moiseev January 13, 2017 16:51
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@moiseev very straightforward, but please sanity-check.


public func test6( ) -> Double {
return sqrt(4)
}
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I guess since we're worried about LLVM's sqrt, is it worth adding a test for sqrt(-1) not becoming undef or something?

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I think the earlier CHECK-NOT llvm.sqrt probably covers us, but I can definitely add one.

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@swift-ci Please test.

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moiseev commented Jan 13, 2017

:shipit:

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LGTM. Thanks!

@stephentyrone stephentyrone merged commit d89f8f4 into swiftlang:master Jan 13, 2017
@stephentyrone stephentyrone deleted the inline-sqrt branch January 13, 2017 18:26
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3 participants