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Author SHA1 Message Date
Michael Kruse 027c036663 [Polly] Reject regions entered by an indirectbr/callbr. 
SplitBlockPredecessors is unable to insert an additional BasicBlock
between an indirectbr/callbr terminator and the successor blocks.
This is needed by Polly to normalize the control flow before emitting
its optimzed code.

This patches rejects regions entered by an indirectbr/callbr to not fail
later at code generation.

This fixes llvm.org/PR51964

Recommit with "REQUIRES: asserts" in test that uses statistics.
 2021-09-27 18:49:11 -05:00
Haowei Wu 283ed7de32 Revert "[Polly] Reject reject regions entered by an indirectbr/callbr." 
This reverts commit 91f46bb77e which
causes test failures when assertions are off.
 2021-09-27 16:05:33 -07:00
Michael Kruse 91f46bb77e [Polly] Reject reject regions entered by an indirectbr/callbr. 
SplitBlockPredecessors is unable to insert an additional BasicBlock
between an indirectbr/callbr terminator and the successor blocks.
This is needed by Polly to normalize the control flow before emitting
its optimzed code.

This patches rejects regions entered by an indirectbr/callbr to not fail
later at code generation.

This fixes llvm.org/PR51964
 2021-09-26 21:21:50 -05:00