NCG: shortcutBranch doesn't handle loops properly
The following Cmm code causes GHC to go into an infinite loop when -O
and -fasm
are on.
foo {
L: goto L;
}
I do not know of any code that depends on this yet. I just tripped over it when writting tests for the CPS pass.
Trac metadata
Trac field | Value |
---|---|
Version | 6.7 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler (NCG) |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | Multiple |
Architecture |