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llvm-mirror/test/Transforms/CodeExtractor/2004-03-14-DominanceProblem.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

34 lines
1.0 KiB
LLVM

; RUN: opt < %s -loop-simplify -loop-extract -disable-output
; This testcase is failing the loop extractor because not all exit blocks
; are dominated by all of the live-outs.
define i32 @ab(i32 %alpha, i32 %beta) {
entry:
br label %loopentry.1.preheader
loopentry.1.preheader: ; preds = %entry
br label %loopentry.1
loopentry.1: ; preds = %no_exit.1, %loopentry.1.preheader
br i1 false, label %no_exit.1, label %loopexit.0.loopexit1
no_exit.1: ; preds = %loopentry.1
%tmp.53 = load i32, i32* null ; <i32> [#uses=1]
br i1 false, label %shortcirc_next.2, label %loopentry.1
shortcirc_next.2: ; preds = %no_exit.1
%tmp.563 = call i32 @wins( i32 0, i32 %tmp.53, i32 3 ) ; <i32> [#uses=0]
ret i32 0
loopexit.0.loopexit1: ; preds = %loopentry.1
br label %loopexit.0
loopexit.0: ; preds = %loopexit.0.loopexit1
ret i32 0
}
declare i32 @wins(i32, i32, i32)
declare i16 @ab_code()