1 ; RUN: opt < %s -basicaa -gvn -S | FileCheck %s 2 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" 3 target triple = "x86_64-apple-macosx10.7.0" 4 5 ; rdar://12801584 6 ; Value of %shouldExit can be changed by RunInMode. 7 ; Make sure we do not replace load %shouldExit in while.cond.backedge 8 ; with a phi node where the value from while.body is 0. 9 define i32 @test() nounwind ssp { 10 entry: 11 ; CHECK: test() 12 ; CHECK: while.body: 13 ; CHECK: call void @RunInMode 14 ; CHECK: br i1 %tobool, label %while.cond.backedge, label %if.then 15 ; CHECK: while.cond.backedge: 16 ; CHECK: load i32, i32* %shouldExit 17 ; CHECK: br i1 %cmp, label %while.body 18 %shouldExit = alloca i32, align 4 19 %tasksIdle = alloca i32, align 4 20 store i32 0, i32* %shouldExit, align 4 21 store i32 0, i32* %tasksIdle, align 4 22 call void @CTestInitialize(i32* %tasksIdle) nounwind 23 %0 = load i32, i32* %shouldExit, align 4 24 %cmp1 = icmp eq i32 %0, 0 25 br i1 %cmp1, label %while.body.lr.ph, label %while.end 26 27 while.body.lr.ph: 28 br label %while.body 29 30 while.body: 31 call void @RunInMode(i32 100) nounwind 32 %1 = load i32, i32* %tasksIdle, align 4 33 %tobool = icmp eq i32 %1, 0 34 br i1 %tobool, label %while.cond.backedge, label %if.then 35 36 if.then: 37 store i32 0, i32* %tasksIdle, align 4 38 call void @TimerCreate(i32* %shouldExit) nounwind 39 br label %while.cond.backedge 40 41 while.cond.backedge: 42 %2 = load i32, i32* %shouldExit, align 4 43 %cmp = icmp eq i32 %2, 0 44 br i1 %cmp, label %while.body, label %while.cond.while.end_crit_edge 45 46 while.cond.while.end_crit_edge: 47 br label %while.end 48 49 while.end: 50 ret i32 0 51 } 52 declare void @CTestInitialize(i32*) 53 declare void @RunInMode(i32) 54 declare void @TimerCreate(i32*) 55
