[SR-9473] Swift 5.0 'Driver' test failures on PowerPC64LE

[swift-ci]

Previous ID	SR-9473
Radar	None
Original Reporter	stamba (JIRA User)
Type	Bug

Attachment: Download

Environment

PowerPC64LE(Little Endian) - Ubuntu 16.04.4 LTS

Additional Detail from JIRA

Votes	0
Component/s	Compiler
Labels	Bug, ppc64le
Assignee	None
Priority	Medium

md5: f3923a7e5b9ac23ab5b1c8a461abb548

Issue Description:

The following Driver test failures are seen when Swift 5.0 toolchain is built on PowerPC64LE.

Invoked the build-toolchain to run the tests as follows :-
utils/build-toolchain srtbundle --test

**Following are the Driver test failures:-

Swift(linux-powerpc64le) :: Driver/sanitizers.swift
Swift(linux-powerpc64le) :: Driver/fuzzer.swift

Are these tests valid for PowerPC64LE?

Attached are the error details of the failing tests.

DriverTestFailures.txt

[belkadan]

These sound like they're the same as whatever SR-9474 is. Are the appropriate compiler-rt libraries getting built?

[swift-ci]

Comment by Sarvesh Tamba (JIRA)

@belkadan Do you mean these -

libclang_rt.asan-powerpc64le.a,

libclang_rt.tsan-powerpc64le.a,

libclang_rt.ubsan_minimal-powerpc64le.a,

libclang_rt.ubsan_standalone-powerpc64le.a?

I can see them under "build/buildbot_linux/llvm-linux-powerpc64le/lib/clang/7.0.0/lib/linux". I also tried including these in the failing test, no luck though.

However I cannot see them under "swift/test/Driver/Inputs/fake-resource-dir/lib/swift/clang/lib/linux/libclang_rt.tsan-x86_64.a" as for other platforms like libclang_rt.tsan-x86_64.a

Are we missing anything on PowerPC64LE?

[belkadan]

Ah, yeah, it seems reasonable to add them there.

[swift-ci]

Comment by Sarvesh Tamba (JIRA)

@belkadan the test Driver/fuzzer.swift seems to be supported only for OSX and x86_64. I could find only libclang_rt.fuzzer_osx.a and libclang_rt.fuzzer-x86_64.a

Also the test is unsupported for Windows32

// UNSUPPORTED: win32

Can this be unsupported for PowerPC64LE as well?

[belkadan]

That's up to you to decide, or whoever maintains the PowerPC64LE support going forward. It is an optional feature of the compiler, sure.