1*9880d681SAndroid Build Coastguard Worker; RUN: opt -S -basicaa -gvn < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; RUN: opt -S -basicaa -gvn -disable-simplify-libcalls < %s | FileCheck %s -check-prefix=CHECK_NO_LIBCALLS 3*9880d681SAndroid Build Coastguard Worker; PR13694 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Workertarget 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-S128" 6*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-apple-macosx10.8.0" 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Workerdeclare i8* @malloc(i64) nounwind 9*9880d681SAndroid Build Coastguard Worker 10*9880d681SAndroid Build Coastguard Workerdefine noalias i8* @test1() nounwind uwtable ssp { 11*9880d681SAndroid Build Coastguard Workerentry: 12*9880d681SAndroid Build Coastguard Worker %call = tail call i8* @malloc(i64 100) nounwind 13*9880d681SAndroid Build Coastguard Worker %0 = load i8, i8* %call, align 1 14*9880d681SAndroid Build Coastguard Worker %tobool = icmp eq i8 %0, 0 15*9880d681SAndroid Build Coastguard Worker br i1 %tobool, label %if.end, label %if.then 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Workerif.then: ; preds = %entry 18*9880d681SAndroid Build Coastguard Worker store i8 0, i8* %call, align 1 19*9880d681SAndroid Build Coastguard Worker br label %if.end 20*9880d681SAndroid Build Coastguard Worker 21*9880d681SAndroid Build Coastguard Workerif.end: ; preds = %if.then, %entry 22*9880d681SAndroid Build Coastguard Worker ret i8* %call 23*9880d681SAndroid Build Coastguard Worker 24*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test1( 25*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: load 26*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: icmp 27*9880d681SAndroid Build Coastguard Worker 28*9880d681SAndroid Build Coastguard Worker; CHECK_NO_LIBCALLS-LABEL: @test1( 29*9880d681SAndroid Build Coastguard Worker; CHECK_NO_LIBCALLS: load 30*9880d681SAndroid Build Coastguard Worker; CHECK_NO_LIBCALLS: icmp 31*9880d681SAndroid Build Coastguard Worker} 32*9880d681SAndroid Build Coastguard Worker 33*9880d681SAndroid Build Coastguard Workerdeclare i8* @_Znwm(i64) nounwind 34*9880d681SAndroid Build Coastguard Worker 35*9880d681SAndroid Build Coastguard Workerdefine noalias i8* @test2() nounwind uwtable ssp { 36*9880d681SAndroid Build Coastguard Workerentry: 37*9880d681SAndroid Build Coastguard Worker %call = tail call i8* @_Znwm(i64 100) nounwind 38*9880d681SAndroid Build Coastguard Worker %0 = load i8, i8* %call, align 1 39*9880d681SAndroid Build Coastguard Worker %tobool = icmp eq i8 %0, 0 40*9880d681SAndroid Build Coastguard Worker br i1 %tobool, label %if.end, label %if.then 41*9880d681SAndroid Build Coastguard Worker 42*9880d681SAndroid Build Coastguard Workerif.then: ; preds = %entry 43*9880d681SAndroid Build Coastguard Worker store i8 0, i8* %call, align 1 44*9880d681SAndroid Build Coastguard Worker br label %if.end 45*9880d681SAndroid Build Coastguard Worker 46*9880d681SAndroid Build Coastguard Workerif.end: ; preds = %if.then, %entry 47*9880d681SAndroid Build Coastguard Worker ret i8* %call 48*9880d681SAndroid Build Coastguard Worker 49*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test2( 50*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: load 51*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: icmp 52*9880d681SAndroid Build Coastguard Worker 53*9880d681SAndroid Build Coastguard Worker; CHECK_NO_LIBCALLS-LABEL: @test2( 54*9880d681SAndroid Build Coastguard Worker; CHECK_NO_LIBCALLS: load 55*9880d681SAndroid Build Coastguard Worker; CHECK_NO_LIBCALLS: icmp 56*9880d681SAndroid Build Coastguard Worker} 57