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; RUN: opt -passes=jump-threading -S < %s | FileCheck %s
; rdar://7620633
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-darwin11.0"
define void @test1(ptr %args, i32 %from_tty) nounwind optsize ssp {
entry:
%tmp = call ptr @f3(ptr null, ptr null) nounwind ; <ptr> [#uses=1]
%tmp1 = icmp eq ptr %args, null ; <i1> [#uses=1]
br i1 %tmp1, label %bb2, label %bb
; CHECK: entry:
; CHECK-NEXT: %tmp = call ptr @f3
; CHECK-NEXT: %tmp1 = icmp eq ptr %args, null
; CHECK-NEXT: br i1 %tmp1, label %bb7, label %bb
bb: ; preds = %entry
%tmp2 = call noalias ptr @buildargv(ptr %args) nounwind ; <ptr> [#uses=4]
%tmp3 = icmp eq ptr %tmp2, null ; <i1> [#uses=1]
br i1 %tmp3, label %bb2, label %bb1
bb1: ; preds = %bb
call void @f2(ptr %tmp2) nounwind
br label %bb2
bb2: ; preds = %bb1, %bb, %entry
%argv.0 = phi ptr [ %tmp2, %bb1 ], [ %tmp2, %bb ], [ undef, %entry ] ; <ptr> [#uses=4]
%tmp5 = icmp eq ptr %args, null ; <i1> [#uses=1]
%tmp6 = icmp eq ptr %argv.0, null ; <i1> [#uses=1]
%tmp7 = or i1 %tmp5, %tmp6 ; <i1> [#uses=1]
br i1 %tmp7, label %bb7, label %bb5
bb5: ; preds = %bb2
%tmp8 = load ptr, ptr %argv.0, align 8 ; <ptr> [#uses=1]
%tmp9 = icmp eq ptr %tmp8, null ; <i1> [#uses=1]
br i1 %tmp9, label %bb7, label %bb6
bb6: ; preds = %bb5
%tmp10 = load ptr, ptr %argv.0, align 8 ; <ptr> [#uses=1]
%tmp11 = load i8, ptr %tmp10, align 1 ; <i8> [#uses=1]
%tmp12 = icmp eq i8 %tmp11, 0 ; <i1> [#uses=1]
br i1 %tmp12, label %bb7, label %bb8
bb7: ; preds = %bb6, %bb5, %bb2
call void @f1() nounwind optsize ssp
br label %bb9
bb8: ; preds = %bb6
%tmp13 = load ptr, ptr %argv.0, align 8 ; <ptr> [#uses=1]
%tmp14 = call i64 @f5(ptr %tmp13) nounwind ; <i64> [#uses=0]
br label %bb9
bb9: ; preds = %bb8, %bb7
call void @f4(ptr %tmp) nounwind
ret void
}
declare noalias ptr @buildargv(ptr)
declare void @f2(ptr)
declare void @f4(ptr)
declare ptr @f3(ptr, ptr)
declare void @f1()
declare i64 @f5(ptr)
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