1 ; This test verifies whether we can outline a singleton instance (i.e., an instance that does not repeat)
2 ; using codegen data that has been read from a previous codegen run.
3 ; When multiple matches occur, we prioritize the candidates using the global frequency.
5 ; RUN: split-file %s %t
7 ; First, we generate the cgdata file from local outline instances present in write1.ll and write2.ll
8 ; RUN: llc -mtriple=arm64-apple-darwin -enable-machine-outliner -codegen-data-generate=true -filetype=obj %t/write1.ll -o %t_write1
9 ; RUN: llc -mtriple=arm64-apple-darwin -enable-machine-outliner -codegen-data-generate=true -filetype=obj %t/write2.ll -o %t_write2
10 ; RUN: llvm-cgdata --merge %t_write1 %t_write2 -o %t_cgdata
11 ; RUN: llvm-cgdata --show %t_cgdata | FileCheck %s --check-prefix=SHOW
13 ; SHOW: Outlined hash tree:
14 ; SHOW-NEXT: Total Node Count: 8
15 ; SHOW-NEXT: Terminal Node Count: 2
18 ; Now, we read the cgdata in the machine outliner, enabling us to optimistically
19 ; outline a singleton instance in read.ll that matches against the cgdata.
20 ; There are two matches -- (1) (mov #1, mov #2, mov #3, b) and (2) (mov #2, mov #3, b).
21 ; Even though sequence (1) is longer than sequence (2), the latter is outlined because it occurs more frequently in the outlined hash tree.
23 ; RUN: llc -mtriple=arm64-apple-darwin -enable-machine-outliner -codegen-data-use-path=%t_cgdata -filetype=obj %t/read.ll -o %t_read
24 ; RUN: llvm-objdump -d %t_read | FileCheck %s
26 ; CHECK: _OUTLINED_FUNCTION
32 ; The sequence (mov #2, mov #3, b) are repeated 4 times.
33 declare i32 @g(i32, i32, i32)
34 define i32 @f1() minsize {
35 %1 = call i32 @g(i32 10, i32 50, i32 2, i32 3);
38 define i32 @f2() minsize {
39 %1 = call i32 @g(i32 20, i32 60, i32 2, i32 3);
42 define i32 @f3() minsize {
43 %1 = call i32 @g(i32 30, i32 70, i32 2, i32 3);
46 define i32 @f4() minsize {
47 %1 = call i32 @g(i32 40, i32 80, i32 2, i32 3);
52 ; The sequence (mov #1, mov #2, mov #3, b) are repeated 2 times.
53 declare i32 @g(i32, i32, i32)
54 define i32 @f6() minsize {
55 %1 = call i32 @g(i32 10, i32 1, i32 2, i32 3);
58 define i32 @f7() minsize {
59 %1 = call i32 @g(i32 20, i32 1, i32 2, i32 3);
64 declare i32 @g(i32, i32, i32)
65 define i32 @f3() minsize {
66 %1 = call i32 @g(i32 30, i32 1, i32 2, i32 3);