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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=loop-unroll -unroll-verify-domtree -verify-dom-info -S %s | FileCheck %s
define void @test() {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
; CHECK-NEXT: br label [[LOOP_LATCH:%.*]]
; CHECK: loop.latch:
; CHECK-NEXT: br i1 true, label [[LOOP_HEADER_1:%.*]], label [[LOOP_EXIT:%.*]]
; CHECK: loop.header.1:
; CHECK-NEXT: br i1 true, label [[EXIT_LOOPEXIT:%.*]], label [[LOOP_LATCH_1:%.*]]
; CHECK: loop.latch.1:
; CHECK-NEXT: br label [[LOOP_EXIT]]
; CHECK: loop.exit:
; CHECK-NEXT: br label [[EXIT:%.*]]
; CHECK: exit.loopexit:
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
br label %loop.header
loop.header:
%exitcond = phi i1 [ true, %loop.latch ], [ false, %entry ]
br i1 %exitcond, label %exit, label %loop.latch
loop.latch:
br i1 true, label %loop.header, label %loop.exit
loop.exit:
br label %exit
exit:
ret void
}
define void @exiting_terminator_is_switch() {
; CHECK-LABEL: @exiting_terminator_is_switch(
; CHECK-NEXT: bb:
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: switch i1 true, label [[LOOP_BACKEDGE:%.*]] [
; CHECK-NEXT: i1 true, label [[EXIT:%.*]]
; CHECK-NEXT: i1 false, label [[LOOP_BACKEDGE]]
; CHECK-NEXT: ]
; CHECK: loop.backedge:
; CHECK-NEXT: unreachable
; CHECK: exit:
; CHECK-NEXT: ret void
;
bb:
br label %loop
loop:
switch i1 true, label %loop [
i1 true, label %exit
i1 false, label %loop
]
exit:
ret void
}
|
