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Author SHA1 Message Date
Renato Golin d69570e017 Revert "[ARM] Mark LEApcrel instructions as isAsCheapAsAMove" 
Revert "[ARM] Mark LEApcrel as not having side effects"

This reverts commit r303054 and r303053, as they broke the ARM
self-hosting buildbots:

http://lab.llvm.org:8011/builders/clang-cmake-thumbv7-a15-full-sh/builds/1550

http://lab.llvm.org:8011/builders/clang-cmake-armv7-a15-selfhost-neon/builds/1349

http://lab.llvm.org:8011/builders/clang-cmake-armv7-a15-selfhost/builds/1845

Offline investigation on course.

llvm-svn: 303193
 2017-05-16 17:59:07 +00:00
John Brawn 9486becf09 [ARM] Mark LEApcrel instructions as isAsCheapAsAMove 
Doing this means that if an LEApcrel is used in two places we will rematerialize
instead of generating two MOVs. This is particularly useful for printfs using
the same format string, where we want to generate an address into a register
that's going to get corrupted by the call.

Differential Revision: https://reviews.llvm.org/D32858

llvm-svn: 303054
 2017-05-15 11:57:54 +00:00
Guozhi Wei f66d384443 Align SP adjustment in function getSPAdjust 
This commit adds a new function TargetFrameLowering::alignSPAdjust
and calls it from TargetInstrInfo::getSPAdjust. It fixes PR24142.

llvm-svn: 245253
 2015-08-17 22:36:27 +00:00