1 ; RUN: opt -print-memderefs -analyze -S <%s | FileCheck %s
3 ; Uses the print-deref (+ analyze to print) pass to run
4 ; isDereferenceablePointer() on many load instruction operands
6 target datalayout = "e"
8 declare zeroext i1 @return_i1()
10 @globalstr = global [6 x i8] c"hello\00"
12 define void @test(i32 addrspace(1)* dereferenceable(8) %dparam) gc "statepoint-example" {
13 ; CHECK: The following are dereferenceable:
20 %globalptr = getelementptr inbounds [6 x i8], [6 x i8]* @globalstr, i32 0, i32 0
21 %load1 = load i8, i8* %globalptr
23 %load2 = load i1, i1* %alloca
24 %load3 = load i32, i32 addrspace(1)* %dparam
25 %tok = tail call i32 (i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 addrspace(1)* %dparam)
26 %relocate = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32 %tok, i32 4, i32 4)
27 %load4 = load i32, i32 addrspace(1)* %relocate
28 %nparam = getelementptr i32, i32 addrspace(1)* %dparam, i32 5
29 %load5 = load i32, i32 addrspace(1)* %nparam
33 declare i32 @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()*, i32, i32, ...)
34 declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32, i32, i32)