Chad Rosier 2463f67c49 [reg scavenger] Fix the isUsed/isAliasUsed functions so as to not report a false ... positive. In this particular case, R6 was being spilled by the register scavenger when it was in fact dead. The isUsed function reported R6 as used because the R6_R7 alias was reserved (due to the fact that we've reserved R7 as the FP). The solution is to only check if the original register (i.e., R6) isReserved and not the aliases. The aliases are only checked to make sure they're available. The test case is derived from one of the nightly tester benchmarks and is rather intractable and difficult to reproduce, so I haven't included it. rdar://12592448 llvm-svn: 168054		2012-11-15 18:13:20 +00:00
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llvm	[reg scavenger] Fix the isUsed/isAliasUsed functions so as to not report a false	2012-11-15 18:13:20 +00:00
llvm-c	Add support for annotated disassembly output for X86 and arm.	2012-10-22 22:31:46 +00:00