2009-12-22 06:04:26 +00:00
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; Test CFG simplify removal of branch instructions.
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2002-05-06 02:37:38 +00:00
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;
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2009-12-22 06:04:26 +00:00
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; RUN: opt < %s -simplifycfg -S | FileCheck %s
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2002-05-06 02:37:38 +00:00
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2008-03-18 03:45:45 +00:00
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define void @test1() {
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2010-12-13 05:10:30 +00:00
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br label %1
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2008-03-18 03:45:45 +00:00
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ret void
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2009-12-22 06:04:26 +00:00
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; CHECK: @test1
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; CHECK-NEXT: ret void
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2002-05-06 02:37:38 +00:00
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}
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2008-03-18 03:45:45 +00:00
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define void @test2() {
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ret void
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ret void
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2009-12-22 06:04:26 +00:00
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; CHECK: @test2
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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2002-05-06 02:37:38 +00:00
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}
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2008-03-18 03:45:45 +00:00
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define void @test3(i1 %T) {
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2010-12-13 05:10:30 +00:00
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br i1 %T, label %1, label %1
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2008-03-18 03:45:45 +00:00
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ret void
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2009-12-22 06:04:26 +00:00
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; CHECK: @test3
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; CHECK-NEXT: ret void
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2002-05-06 02:37:38 +00:00
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}
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2009-12-22 06:07:30 +00:00
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; PR5795
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define void @test5(i32 %A) {
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switch i32 %A, label %return [
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2010-12-13 05:10:30 +00:00
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i32 2, label %1
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i32 10, label %2
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2009-12-22 06:07:30 +00:00
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]
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ret void
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ret void
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return: ; preds = %entry
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ret void
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; CHECK: @test5
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; CHECK-NEXT: ret void
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}
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