[PATCH] D125398: [ControlHeightReduction] Freeze condition when converting select to branch

[Juneyoung Lee via Phabricator via llvm-commits]

aqjune added inline comments.


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Comment at: llvm/test/Transforms/PGOProfile/chr.ll:1182
+; CHECK-NEXT:    [[DOTFR1:%.*]] = freeze i32 [[TMP0]]
+; CHECK-NEXT:    [[TMP1:%.*]] = and i32 [[DOTFR1]], 255
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 0
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It seems this freeze is introduced even if the source code (`entry`) had a conditional branch.
Is it because CHR first converts the conditional branch into `select` and then convert it back into a conditional branch?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D125398/new/

https://reviews.llvm.org/D125398