1 ; RUN: opt -S -basicaa -newgvn < %s | FileCheck %s
2 ; RUN: opt -S -basicaa -newgvn -disable-simplify-libcalls < %s | FileCheck %s -check-prefix=CHECK_NO_LIBCALLS
5 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-S128"
6 target triple = "x86_64-apple-macosx10.8.0"
8 declare i8* @malloc(i64) nounwind
10 define noalias i8* @test1() nounwind uwtable ssp {
12 %call = tail call i8* @malloc(i64 100) nounwind
13 %0 = load i8, i8* %call, align 1
14 %tobool = icmp eq i8 %0, 0
15 br i1 %tobool, label %if.end, label %if.then
17 if.then: ; preds = %entry
18 store i8 0, i8* %call, align 1
21 if.end: ; preds = %if.then, %entry
24 ; CHECK-LABEL: @test1(
28 ; CHECK_NO_LIBCALLS-LABEL: @test1(
29 ; CHECK_NO_LIBCALLS: load
30 ; CHECK_NO_LIBCALLS: icmp
33 declare i8* @_Znwm(i64) nounwind
35 define noalias i8* @test2() nounwind uwtable ssp {
37 %call = tail call i8* @_Znwm(i64 100) nounwind
38 %0 = load i8, i8* %call, align 1
39 %tobool = icmp eq i8 %0, 0
40 br i1 %tobool, label %if.end, label %if.then
42 if.then: ; preds = %entry
43 store i8 0, i8* %call, align 1
46 if.end: ; preds = %if.then, %entry
49 ; CHECK-LABEL: @test2(
53 ; CHECK_NO_LIBCALLS-LABEL: @test2(
54 ; CHECK_NO_LIBCALLS: load
55 ; CHECK_NO_LIBCALLS: icmp