1 ; RUN: opt < %s -instcombine -disable-output 2 target 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" 3 target triple = "i686-apple-darwin8" 4 5 declare void @__darwin_gcc3_preregister_frame_info() 6 7 define void @_start(i32 %argc, i8** %argv, i8** %envp) { 8 entry: 9 %tmp1 = bitcast void ()* @__darwin_gcc3_preregister_frame_info to i32* ; <i32*> [#uses=1] 10 %tmp2 = load i32, i32* %tmp1, align 4 ; <i32> [#uses=1] 11 %tmp3 = icmp ne i32 %tmp2, 0 ; <i1> [#uses=1] 12 %tmp34 = zext i1 %tmp3 to i8 ; <i8> [#uses=1] 13 %toBool = icmp ne i8 %tmp34, 0 ; <i1> [#uses=1] 14 br i1 %toBool, label %cond_true, label %return 15 16 cond_true: ; preds = %entry 17 ret void 18 19 return: ; preds = %entry 20 ret void 21 } 22
