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llvm-mirror/test/Transforms/CodeExtractor/2004-03-14-NoSwitchSupport.ll
Arthur Eubanks cf44f794e4 [LoopExtract][NewPM] Port -loop-extract to NPM
-loop-extract-single is just -loop-extract on one loop.

-loop-extract depended on -break-crit-edges and -loop-simplify in the
legacy PM, but the NPM doesn't allow specifying pass dependencies like
that, so manually add those passes to the RUN lines where necessary.

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D89016
2020-10-13 22:55:42 -07:00

29 lines
748 B
LLVM

; RUN: opt < %s -loop-simplify -loop-extract-single -disable-output
define void @ab() {
entry:
br label %codeReplTail
then.1: ; preds = %codeReplTail
br label %loopentry.1
loopentry.1: ; preds = %no_exit.1, %then.1
br i1 false, label %no_exit.1, label %loopexit.0.loopexit1
no_exit.1: ; preds = %loopentry.1
br label %loopentry.1
loopexit.0.loopexit: ; preds = %codeReplTail
ret void
loopexit.0.loopexit1: ; preds = %loopentry.1
ret void
codeReplTail: ; preds = %codeReplTail, %entry
switch i16 0, label %codeReplTail [
i16 0, label %loopexit.0.loopexit
i16 1, label %then.1
]
}