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# a7ade33d 07-Sep-2016 Saleem Abdulrasool <compnerd@compnerd.org>

Revert "CodeGen: ensure that libcalls are always AAPCS CC"

This reverts SVN r280683. Revert until I figure out why this is breaking lli
tests.

llvm-svn: 280778


# a6519b1d 06-Sep-2016 Saleem Abdulrasool <compnerd@compnerd.org>

CodeGen: ensure that libcalls are always AAPCS CC

All of the builtins are designed to be invoked with ARM AAPCS CC even on ARM
AAPCS VFP CC hosts. Tweak the default initialisation to ARM AAPCS CC r

CodeGen: ensure that libcalls are always AAPCS CC

All of the builtins are designed to be invoked with ARM AAPCS CC even on ARM
AAPCS VFP CC hosts. Tweak the default initialisation to ARM AAPCS CC rather
than C CC for ARM/thumb targets.

The changes to the tests are necessary to ensure that the calling convention for
the lowered library calls are honoured. Furthermore, these adjustments cause
certain branch invocations to change to branch-and-link since the returned value
needs to be moved across registers (d0 -> r0, r1).

llvm-svn: 280683

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Revision tags: llvmorg-3.9.0, llvmorg-3.9.0-rc3, llvmorg-3.9.0-rc2, llvmorg-3.9.0-rc1, llvmorg-3.8.1, llvmorg-3.8.1-rc1
# b49a8a9d 22-Mar-2016 Tim Northover <tnorthover@apple.com>

CodeGen: check return types match when emitting tail call to builtin.

We were just completely ignoring the types when determining whether we could
safely emit a libcall as a tail call. This is clear

CodeGen: check return types match when emitting tail call to builtin.

We were just completely ignoring the types when determining whether we could
safely emit a libcall as a tail call. This is clearly wrong.

Theoretically, we could dig deeper looking for incidental matches (much like
the generic code in Analysis.cpp does), but it's probably not worth it for the
few libcalls that exist.

llvm-svn: 264084

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