diff options
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/SimplifyCFG/dce-cond-after-folding-terminator.ll | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyCFG/dce-cond-after-folding-terminator.ll b/test/Transforms/SimplifyCFG/dce-cond-after-folding-terminator.ll new file mode 100644 index 0000000..3996efd --- /dev/null +++ b/test/Transforms/SimplifyCFG/dce-cond-after-folding-terminator.ll @@ -0,0 +1,52 @@ +; RUN: opt -S <%s -simplifycfg | FileCheck %s + +define void @test_br(i32 %x) { +entry: +; CHECK: @test_br +; CHECK-NEXT: entry: +; CHECK-NEXT: ret void + %cmp = icmp eq i32 %x, 10 + br i1 %cmp, label %if.then, label %if.then + +if.then: ; preds = %entry + br label %if.end + +if.end: ; preds = %if.else, %if.then + ret void +} + +define void @test_switch(i32 %x) nounwind { +entry: +; CHECK: @test_switch +; CHECK-NEXT: entry: +; CHECK-NEXT: ret void + %rem = srem i32 %x, 3 + switch i32 %rem, label %sw.bb [ + i32 1, label %sw.bb + i32 10, label %sw.bb + ] + +sw.bb: ; preds = %sw.default, %entry, %entry + br label %sw.epilog + +sw.epilog: ; preds = %sw.bb + ret void +} + +define void @test_indirectbr(i32 %x) { +entry: +; CHECK: @test_indirectbr +; CHECK-NEXT: entry: +; Ideally this should now check: +; CHK-NEXT: ret void +; But that doesn't happen yet. Instead: +; CHECK-NEXT: br label %L1 + + %label = bitcast i8* blockaddress(@test_indirectbr, %L1) to i8* + indirectbr i8* %label, [label %L1, label %L2] + +L1: ; preds = %entry + ret void +L2: ; preds = %entry + ret void +} |