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"
5 declare void @__darwin_gcc3_preregister_frame_info()
7 define void @_start(i32 %argc, i8** %argv, i8** %envp) {
9 %tmp1 = bitcast void ()* @__darwin_gcc3_preregister_frame_info to i32* ; <i32*> [#uses=1]
10 %tmp2 = load 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
16 cond_true: ; preds = %entry
19 return: ; preds = %entry