Victor Huang 3abe7aca45 [CodeGen] Enable tail call position check for speculatable functions ...

In the function "Analysis.cpp:isInTailCallPosition", it only checks whether
a call is in a tail call position if the call has side effects, access memory
or it is not safe to speculative execute. Therefore, a speculatable function
will not go through tail call position check and improperly tail called when
it is not in a tail-call position. This patch enables tail call position check
for speculatable functions.

Differential Revision: https://reviews.llvm.org/D80661

2020-06-03 10:37:45 -05:00

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