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Merge commit d3aeac8e2 from llvm git (by Justin Hibbits)
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Authored by dim on Dec 23 2019, 7:16 PM.
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Details

Summary
[PowerPC] Only use PLT annotations if using PIC relocation model

Summary:

The default static (non-PIC, non-PIE) model for 32-bit powerpc does
not use @PLT annotations and relocations in GCC.  LLVM shouldn't use
@PLT annotations either, because it breaks secure-PLT linking with
(some versions of?) GNU LD.

Update the available-externally.ll test to reflect that default mode
should be the same as the static relocation, by using the same check
prefix.

Reviewed by:    sfertile
Differential Revision: https://reviews.llvm.org/D70570

This diff needed some fuzz to apply, double-checking it via this review.

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rS FreeBSD src repository - subversion
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Event Timeline

contrib/llvm-project/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
4960 ↗(On Diff #65931)

The original diff I had created, before rebasing on the giant refactor used TM.getRelocationModel(). I think this should still work, though.

This revision is now accepted and ready to land.Dec 23 2019, 10:30 PM