4 Commits

Author	SHA1	Message	Date
Chris Dewhurst	4f75eab6b3	[Sparc][LEON] Removed the parts of the errata fixes implemented using inline assembly as this is not the desired behaviour for end-users. Small change to a unit test to implement this without requiring the inline assembly. ... llvm-svn: 281047	2016-09-09 14:16:51 +00:00
James Y Knight	0e7885981e	Revert "[Sparc] Leon errata fix passes." ... ...and the two followup commits: Revert "[Sparc][Leon] Missed resetting option flags from check-in 278489." Revert "[Sparc][Leon] Errata fixes for various errata in different versions of the Leon variants of the Sparc 32 bit processor." This reverts commit r274856, r278489, and r278492. llvm-svn: 278511	2016-08-12 14:48:09 +00:00
Chris Dewhurst	f4610cdbe3	[Sparc][Leon] Errata fixes for various errata in different versions of the Leon variants of the Sparc 32 bit processor. ... The nature of the errata are listed in the comments preceding the errata fix passes. Relevant unit tests are implemented for each of these. These changes update older versions of these errata fixes with improvements to code and unit tests. Differential Revision: https://reviews.llvm.org/D21960 llvm-svn: 278489	2016-08-12 09:34:26 +00:00
Chris Dewhurst	11fab31200	[Sparc][LEON] LEON Erratum fix. Insert NOP after LD or LDF instruction. ... Due to an erratum in some versions of LEON, we must insert a NOP after any LD or LDF instruction to ensure the processor has time to load the value correctly before using it. This pass will implement that erratum fix. The code will have no effect for other Sparc, but non-LEON processors. Differential Review: http://reviews.llvm.org/D20353 llvm-svn: 270417	2016-05-23 10:56:36 +00:00