llvm-project

Author	SHA1	Message	Date
Eli Friedman	eb1bd24134	Some additional tests for Thumb atomic load and store (which I somehow forgot to commit earlier). llvm-svn: 140074	2011-09-19 22:02:33 +00:00
Eli Friedman	ee8f14a799	Some legalization fixes for atomic load and store. llvm-svn: 139851	2011-09-15 21:20:49 +00:00
Eli Friedman	e978d2f644	Relax the MemOperands on atomics a bit. Fixes -verify-machineinstrs failures for atomic laod/store on ARM. (The fix for the related failures on x86 is going to be nastier because we actually need Acquire memoperands attached to the atomic load instrs, etc.) llvm-svn: 139221	2011-09-07 02:23:42 +00:00
Eli Friedman	f3dd6da7a8	Don't fast-isel for atomic load/store; some cases require extra handling missing from fast-isel. llvm-svn: 139044	2011-09-02 22:33:24 +00:00
Eli Friedman	452aae6202	Atomic load/store on ARM/Thumb. I don't really like the patterns, but I'm having trouble coming up with a better way to handle them. I plan on making other targets use the same legalization ARM-without-memory-barriers is using... it's not especially efficient, but if anyone cares, it's not that hard to fix for a given target if there's some better lowering. llvm-svn: 138621	2011-08-26 02:59:24 +00:00