https://llvm.org/bugs/show_bug.cgi?id=24500
David Kreitzer <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED URL| |http://reviews.llvm.org/rL2 | |47042 Resolution|--- |FIXED --- Comment #1 from David Kreitzer <[email protected]> --- The bug was actually in the X86 call frame optimization, which used a non-deterministic map walk to decide the order in which calls are optimized. (The map used machine instruction pointers as keys.) The different optimization order resulted in different orderings in vreg use lists, which ultimately resulted in register allocation differences. The fix was to use a vector rather than a map to hold the list of call optimization candidates. -- You are receiving this mail because: You are on the CC list for the bug.
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