1 ; RUN: llc -march=mips -mcpu=mips32 -verify-machineinstrs -o /dev/null < %s 2 ; Confirm that MachineInstr branch simplification preserves 3 ; register operand flags, such as the <undef> flag. 4 5 define void @ham() { 6 bb: 7 %tmp = alloca i32, align 4 8 %tmp13 = ptrtoint i32* %tmp to i32 9 %tmp70 = icmp eq i32 undef, -1 10 br i1 %tmp70, label %bb72, label %bb40 11 12 bb72: ; preds = %bb72, %bb 13 br i1 undef, label %bb40, label %bb72 14 15 bb40: ; preds = %bb72, %bb 16 %tmp41 = phi i32 [ %tmp13, %bb72 ], [ %tmp13, %bb ] 17 %tmp55 = inttoptr i32 %tmp41 to i32* 18 %tmp58 = insertelement <2 x i32*> undef, i32* %tmp55, i32 1 19 br label %bb59 20 21 bb59: ; preds = %bb59, %bb40 22 %tmp60 = phi <2 x i32*> [ %tmp61, %bb59 ], [ %tmp58, %bb40 ] 23 %tmp61 = getelementptr i32, <2 x i32*> %tmp60, <2 x i32> <i32 -1, i32 1> 24 %tmp62 = extractelement <2 x i32*> %tmp61, i32 1 25 br label %bb59 26 } 27
