llvm-6502/test/Linker/Inputs/type-unique-opaque.ll

%t = type { i8 }
%t2 = type { %t*, i16 }

define %t2* @f() {
  ret %t2* null
}
Add back r222727 with a fix. The original patch would fail when: * A dst opaque type (%A) is matched with a src type (%A). * A src opaque (%E) type is then speculatively matched with %A and the speculation fails afterward. * When rolling back the speculation we would cancel the source %A to dest %A mapping. The fix is to keep an explicit list of which resolutions are speculative. Original message: Fix overly aggressive type merging. If we find out that two types are not isomorphic, we learn nothing about opaque sub types in both the source and destination. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222923 91177308-0d34-0410-b5e6-96231b3b80d8 2014-11-28 16:41:24 +00:00			`%t = type { i8 }`
			`%t2 = type { %t*, i16 }`

			`define %t2* @f() {`
			`ret %t2* null`
			`}`