xref: /llvm-project/llvm/test/tools/llvm-reduce/reduce-prologue-data.ll (revision e60b0d2a2227a3fa299884bc3388baecdd4c88e6) 
1; RUN: llvm-reduce --abort-on-invalid-reduction --delta-passes=function-data --test FileCheck --test-arg --check-prefix=CHECK --test-arg %s --test-arg --input-file %s -o %t
2; RUN: FileCheck -check-prefixes=CHECK,RESULT %s < %t
3
4@gv = linkonce_odr global i32 1
5
6; CHECK: define void @drop_prologue_const_array()
7define void @drop_prologue_const_array() prologue [2 x i32] [i32 1, i32 2] {
8  ret void
9}
10
11; CHECK: define void @keep_prologue_const_array() prologue i32 1 {
12define void @keep_prologue_const_array() prologue i32 1 {
13  ret void
14}
15
16; CHECK: define void @drop_prologue_ptr_global()
17define void @drop_prologue_ptr_global() prologue ptr @gv {
18  ret void
19}
20
21; CHECK: define void @keep_prologue_ptr_global() prologue ptr @gv {
22define void @keep_prologue_ptr_global() prologue ptr @gv {
23  ret void
24}
25
26; Make sure there's no invalid reduction if the prologue data is really
27; accessed
28; CHECK: define i32 @drop_uses_prologue_const_array()
29define i32 @drop_uses_prologue_const_array() prologue [2 x i32] [i32 1, i32 2] {
30  %gep = getelementptr inbounds i32, ptr @drop_uses_prologue_const_array, i32 -1
31  %load = load i32, ptr %gep
32  ret i32 %load
33}
34
35; CHECK: define ptr @drop_uses_prologue_gv(
36define ptr @drop_uses_prologue_gv() prologue ptr @gv {
37  %gep = getelementptr inbounds i32, ptr @drop_uses_prologue_gv, i32 -1
38  %load = load ptr, ptr %gep
39  ret ptr %load
40}
41
42
43; RESULT: declare void @declaration_prologue_const_array(){{$}}
44declare void @declaration_prologue_const_array() prologue [2 x i32] [i32 1, i32 2]
45
46; RESULT: void @declaration_prologue_ptr_gv(){{$}}
47declare void @declaration_prologue_ptr_gv() prologue ptr @gv
48