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llvm-mirror/test/Transforms/SimpleLoopUnswitch/2011-06-02-CritSwitch.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

30 lines
945 B
LLVM

; RUN: opt -simple-loop-unswitch -disable-output < %s
; RUN: opt -simple-loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -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
}