xref: /llvm-project/llvm/test/CodeGen/SystemZ/Large/large-ada-02.py (revision 0aec4d2b78a08f5f3e4b0ad0340a99e486d00110)
1# Test code generation for retrieving function descriptors
2# from the ADA when the ADA is extremely large and forces the
3# generation of a different instruction sequence
4# RUN: %python %s | llc -mtriple=s390x-ibm-zos -O2 | FileCheck %s
5
6# CHECK: algfi	8,{{[0-9]+}}
7# CHECK: la	8,0(8)
8
9from __future__ import print_function
10
11num_calls = 35000
12
13print("define hidden signext i32 @main() {")
14print("entry:")
15
16for i in range(num_calls):
17    print("  call void @foo%d()" % i)
18
19# This is added to force the use of register r8 to generate
20# la 8, 0(8) which generates the algfi instruction
21print('%0 = call ptr asm " LGR $0,$1\0A", "=r,{r8}"(ptr nonnull @foo)')
22print("  call void @bar(ptr noundef %0)")
23print("ret i32 0")
24print("}")
25
26for i in range(num_calls):
27    print("declare void @foo%d(...)" % i)
28
29print("declare void @bar(ptr noundef)")
30print("define internal void @foo() {")
31print("entry:")
32print("  ret void")
33print("  }")
34