Lang Hames bb5b3f3359 Add a natural stack alignment field to TargetData, and prevent InstCombine from ... promoting allocas to preferred alignments that exceed the natural alignment. This avoids some potentially expensive dynamic stack realignments. The natural stack alignment is set in target data strings via the "S<size>" option. Size is in bits and must be a multiple of 8. The natural stack alignment defaults to "unspecified" (represented by a zero value), and the "unspecified" value does not prevent any alignment promotions. Target maintainers that care about avoiding promotions should explicitly add the "S<size>" option to their target data strings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141599 91177308-0d34-0410-b5e6-96231b3b80d8		2011-10-10 23:42:08 +00:00
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Hello	Since the Hello pass is built as a loadable dynamic library, don't try to convert it to new-style registration yet.	2010-10-07 00:31:16 +00:00
InstCombine	Re-commit 141203, but much more conservative.	2011-10-05 20:53:43 +00:00
Instrumentation	If simple ownership works then friendship is not required.	2011-09-20 18:48:56 +00:00
IPO	Inlining and unrolling heuristics should be aware of free truncs.	2011-10-01 01:39:05 +00:00
Scalar	LSR should only reuse phis that match its formula.	2011-10-07 23:46:21 +00:00
Utils	Add a natural stack alignment field to TargetData, and prevent InstCombine from	2011-10-10 23:42:08 +00:00
CMakeLists.txt	Move library stuff out of the toplevel CMakeLists.txt file.	2011-02-18 22:06:14 +00:00
Makefile	Revert r100896 and around - this breaks the only mingw32 buildbot we have.	2010-04-15 19:51:42 +00:00