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bb5b3f3359
llvm-6502/lib
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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
..
Analysis Add an extra safety check in front of the optimization in r141442. 2011-10-08 02:16:39 +00:00
Archive
AsmParser Remove last references to hotpatch. 2011-10-04 03:08:43 +00:00
Bitcode Also update the EH with bitcode. I missed this earlier. Thanks to Duncan for pointing it out. 2011-10-05 07:04:14 +00:00
CodeGen Revert r141569 and r141576. 2011-10-10 23:18:02 +00:00
DebugInfo lib/DebugInfo/DWARFDebugLine.cpp: De-Unicode-ify. 2011-10-08 11:22:47 +00:00
ExecutionEngine MCJIT initialization TargetData 2011-09-30 16:40:10 +00:00
Linker lib/Linker: add support of deps which does not end with ".so". 2011-09-20 22:52:35 +00:00
MC MCAtom extending methods need to extend the range of the atom as well. 2011-10-10 18:09:38 +00:00
Object Fix warning. 2011-10-10 23:36:56 +00:00
Support The Mips specific function for instruction cache invalidation cannot be 2011-10-10 18:41:02 +00:00
TableGen Revert r141079: tblgen: add preprocessor as a separate mode 2011-10-08 12:39:26 +00:00
Target Add a natural stack alignment field to TargetData, and prevent InstCombine from 2011-10-10 23:42:08 +00:00
Transforms Add a natural stack alignment field to TargetData, and prevent InstCombine from 2011-10-10 23:42:08 +00:00
VMCore Move default to top of switch 2011-10-07 16:27:01 +00:00
CMakeLists.txt Move TableGen's parser and entry point into a library 2011-10-01 16:41:13 +00:00
Makefile