1 ; Test a pile of objectsize bounds checking.
2 ; RUN: opt < %s -instcombine -S | FileCheck %s
3 ; We need target data to get the sizes of the arrays and structures.
4 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"
6 @a = private global [60 x i8] zeroinitializer, align 1 ; <[60 x i8]*>
7 @.str = private constant [8 x i8] c"abcdefg\00" ; <[8 x i8]*>
9 define i32 @foo() nounwind {
11 ; CHECK-NEXT: ret i32 60
12 %1 = call i32 @llvm.objectsize.i32(i8* getelementptr inbounds ([60 x i8]* @a, i32 0, i32 0), i1 false)
16 define i8* @bar() nounwind {
20 %0 = call i32 @llvm.objectsize.i32(i8* getelementptr inbounds ([60 x i8]* @a, i32 0, i32 0), i1 false)
21 %cmp = icmp ne i32 %0, -1
23 br i1 %cmp, label %cond.true, label %cond.false
26 %1 = load i8** %retval;
30 %2 = load i8** %retval;
34 define i32 @f() nounwind {
36 ; CHECK-NEXT: ret i32 0
37 %1 = call i32 @llvm.objectsize.i32(i8* getelementptr ([60 x i8]* @a, i32 1, i32 0), i1 false)
41 @window = external global [0 x i8]
43 define i1 @baz() nounwind {
45 ; CHECK-NEXT: ret i1 true
46 %1 = tail call i32 @llvm.objectsize.i32(i8* getelementptr inbounds ([0 x i8]* @window, i32 0, i32 0), i1 false)
47 %2 = icmp eq i32 %1, -1
51 declare i32 @llvm.objectsize.i32(i8*, i1) nounwind readonly