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llvm-mirror/test/Transforms/LoopUnswitch/2011-06-02-CritSwitch.ll
Arthur Eubanks 54c69d097e [NewPM][LoopUnswitch] Pin loop-unswitch to legacy PM or use simple-loop-unswitch
As mentioned in
http://lists.llvm.org/pipermail/llvm-dev/2020-July/143395.html,
loop-unswitch has not been ported to the NPM. Instead people are using
simple-loop-unswitch.

Pin all tests in Transforms/LoopUnswitch to legacy PM and replace all
other uses of loop-unswitch with simple-loop-unswitch.

One test that didn't fit into the above was
2014-06-21-congruent-constant.ll which seems to only pass with
loop-unswitch. That is also pinned to legacy PM.

Now all tests containing "-loop-unswitch" anywhere in the test succeed with
NPM turned on by default.

Reviewed By: ychen

Differential Revision: https://reviews.llvm.org/D85360
2020-08-06 10:56:00 -07:00

29 lines
849 B
LLVM

; RUN: opt -loop-unswitch -enable-new-pm=0 -disable-output < %s
; PR10031
define i32 @test(i32 %command) {
entry:
br label %tailrecurse
tailrecurse: ; preds = %if.then14, %tailrecurse, %entry
br i1 undef, label %if.then, label %tailrecurse
if.then: ; preds = %tailrecurse
switch i32 %command, label %sw.bb [
i32 2, label %land.lhs.true
i32 0, label %land.lhs.true
]
land.lhs.true: ; preds = %if.then, %if.then
br i1 undef, label %sw.bb, label %if.then14
if.then14: ; preds = %land.lhs.true
switch i32 %command, label %tailrecurse [
i32 0, label %sw.bb
i32 1, label %sw.bb
]
sw.bb: ; preds = %if.then14
unreachable
}