1; RUN: opt < %s -passes=instcombine -disable-output 2target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" 3target triple = "i686-apple-darwin8" 4 5declare void @__darwin_gcc3_preregister_frame_info() 6 7define void @_start(i32 %argc, ptr %argv, ptr %envp) { 8entry: 9 %tmp2 = load i32, ptr @__darwin_gcc3_preregister_frame_info, align 4 ; <i32> [#uses=1] 10 %tmp3 = icmp ne i32 %tmp2, 0 ; <i1> [#uses=1] 11 %tmp34 = zext i1 %tmp3 to i8 ; <i8> [#uses=1] 12 %toBool = icmp ne i8 %tmp34, 0 ; <i1> [#uses=1] 13 br i1 %toBool, label %cond_true, label %return 14 15cond_true: ; preds = %entry 16 ret void 17 18return: ; preds = %entry 19 ret void 20} 21