Cherry-pick r237153: [Mips] Return false for isFPCloseToIncomingSP()

Cherry-pick r237153: [Mips] Return false for isFPCloseToIncomingSP()

On Mips, frame pointer points to the same side of the frame as the stack
pointer. This function is used to decide where to put register scavenging
spill slot. So far, it was put on the wrong side of the frame, and thus it
was too far away from $fp when frame was larger than 2^15 bytes.

Patch by Vladimir Radosavljevic.

http://reviews.llvm.org/D8895

BUG= pnacl-llc aborts on run_vector_extension_test for MIPS
R=mseaborn@chromium.org

Committed: https://chromium.googlesource.com/native_client/pnacl-llvm/+/1d79adfbc0115376d75323642038e5193f94b6af

[petarj, 2016-11-03 18:23:02]

Description was changed from

==========
Cherry-pick r237153: [Mips] Return false for isFPCloseToIncomingSP()

On Mips, frame pointer points to the same side of the frame as the stack
pointer. This function is used to decide where to put register scavenging
spill slot. So far, it was put on the wrong side of the frame, and thus it
was too far away from $fp when frame was larger than 2^15 bytes.

Patch by Vladimir Radosavljevic.

http://reviews.llvm.org/D8895

BUG= pnacl-llc aborts on run_vector_extension_test for MIPS
==========

to

==========
Cherry-pick r237153: [Mips] Return false for isFPCloseToIncomingSP()

On Mips, frame pointer points to the same side of the frame as the stack
pointer. This function is used to decide where to put register scavenging
spill slot. So far, it was put on the wrong side of the frame, and thus it
was too far away from $fp when frame was larger than 2^15 bytes.

Patch by Vladimir Radosavljevic.

http://reviews.llvm.org/D8895

BUG= pnacl-llc aborts on run_vector_extension_test for MIPS
==========

[petarj, 2016-11-03 18:23:02]

petarj@mips.com changed reviewers:
+ mseaborn@chromium.org

[petarj, 2016-11-03 18:23:13]

PTAL.

[Mark Seaborn, 2016-11-03 19:05:23]

LGTM

[petarj, 2016-11-03 20:22:55]

Description was changed from

==========
Cherry-pick r237153: [Mips] Return false for isFPCloseToIncomingSP()

On Mips, frame pointer points to the same side of the frame as the stack
pointer. This function is used to decide where to put register scavenging
spill slot. So far, it was put on the wrong side of the frame, and thus it
was too far away from $fp when frame was larger than 2^15 bytes.

Patch by Vladimir Radosavljevic.

http://reviews.llvm.org/D8895

BUG= pnacl-llc aborts on run_vector_extension_test for MIPS
==========

to

==========
Cherry-pick r237153: [Mips] Return false for isFPCloseToIncomingSP()

On Mips, frame pointer points to the same side of the frame as the stack
pointer. This function is used to decide where to put register scavenging
spill slot. So far, it was put on the wrong side of the frame, and thus it
was too far away from $fp when frame was larger than 2^15 bytes.

Patch by Vladimir Radosavljevic.

http://reviews.llvm.org/D8895

BUG= pnacl-llc aborts on run_vector_extension_test for MIPS
R=mseaborn@chromium.org

Committed:
https://chromium.googlesource.com/native_client/pnacl-llvm/+/1d79adfbc0115376...
==========

[petarj, 2016-11-03 20:22:57]

Committed patchset #1 (id:1) manually as
1d79adfbc0115376d75323642038e5193f94b6af (presubmit successful).