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https://github.com/c64scene-ar/llvm-6502.git
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f716393db9
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
7 lines
79 B
LLVM
7 lines
79 B
LLVM
%t = type { i8 }
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%t2 = type { %t*, i16 }
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define %t2* @f() {
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ret %t2* null
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}
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