mstorsjo abandoned this revision.
mstorsjo added a comment.
Fixed the issue via https://reviews.llvm.org/D44592 instead, thanks @efriedma
for the pointers!
Repository:
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https://reviews.llvm.org/D44582
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mstorsjo added a comment.
In https://reviews.llvm.org/D44582#1040643, @efriedma wrote:
> The backend has code to generate SRet returns, which is used when
> TargetLowering::CanLowerReturn returns false. Probably a tiny change to
> X86CallingConv.td to use that codepath on Windows.
Thanks, I
efriedma added a comment.
The backend has code to generate SRet returns, which is used when
TargetLowering::CanLowerReturn returns false. Probably a tiny change to
X86CallingConv.td to use that codepath on Windows.
Repository:
rC Clang
https://reviews.llvm.org/D44582
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mstorsjo added a comment.
In https://reviews.llvm.org/D44582#1040578, @efriedma wrote:
> Can we just fix the bug in the backend, rather than trying to hack around it
> in clang?
That'd obviously be ideal - but I don't know how easy that'd be (not familiar
enough with that aspect of LLVM); if
rnk accepted this revision.
rnk added a comment.
This revision is now accepted and ready to land.
lgtm
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efriedma added a comment.
Can we just fix the bug in the backend, rather than trying to hack around it in
clang?
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mstorsjo created this revision.
mstorsjo added reviewers: rnk, compnerd.
On x86_64 mingw, long doubles are passed as arguments and returned as if they
were a struct. For normal functions, this calling convention detail is handled
within clang when generating the IR. When a math function is handl
