; RUN: llc < %s -march=x86 | not grep btl ; This tests some cases where BT must not be generated. See also bt.ll. ; Fixes 20040709-[12].c in gcc testsuite. define void @test2(i32 %x, i32 %n) nounwind { entry: %tmp1 = and i32 %x, 1 %tmp2 = urem i32 %tmp1, 15 %tmp3 = and i32 %tmp2, 1 ; [#uses=1] %tmp4 = icmp eq i32 %tmp3, %tmp2 ; [#uses=1] br i1 %tmp4, label %bb, label %UnifiedReturnBlock bb: ; preds = %entry call void @foo() ret void UnifiedReturnBlock: ; preds = %entry ret void } define void @test3(i32 %x, i32 %n) nounwind { entry: %tmp1 = and i32 %x, 1 %tmp2 = urem i32 %tmp1, 15 %tmp3 = and i32 %tmp2, 1 ; [#uses=1] %tmp4 = icmp eq i32 %tmp2, %tmp3 ; [#uses=1] br i1 %tmp4, label %bb, label %UnifiedReturnBlock bb: ; preds = %entry call void @foo() ret void UnifiedReturnBlock: ; preds = %entry ret void } define void @test4(i32 %x, i32 %n) nounwind { entry: %tmp1 = and i32 %x, 1 %tmp2 = urem i32 %tmp1, 15 %tmp3 = and i32 %tmp2, 1 ; [#uses=1] %tmp4 = icmp ne i32 %tmp2, %tmp3 ; [#uses=1] br i1 %tmp4, label %bb, label %UnifiedReturnBlock bb: ; preds = %entry call void @foo() ret void UnifiedReturnBlock: ; preds = %entry ret void } define void @test5(i32 %x, i32 %n) nounwind { entry: %tmp1 = and i32 %x, 1 %tmp2 = urem i32 %tmp1, 15 %tmp3 = and i32 %tmp2, 1 ; [#uses=1] %tmp4 = icmp ne i32 %tmp2, %tmp3 ; [#uses=1] br i1 %tmp4, label %bb, label %UnifiedReturnBlock bb: ; preds = %entry call void @foo() ret void UnifiedReturnBlock: ; preds = %entry ret void } declare void @foo()