xref: /llvm-project/bolt/test/X86/shrinkwrapping.test (revision 11791ae7b0b05b8bd8d806331ff51da618912cf8)
1## Verifies that llvm-bolt updates CFI correctly after
2## shrink-wrapping when optimizing a function without
3## frame pointers.
4
5## This test has commands that rely on shell capabilities that won't execute
6## correctly on Windows e.g. subshell execution to capture command output.
7REQUIRES: shell
8
9RUN: %clangxx %cxxflags -no-pie %S/Inputs/exc4sw.S -o %t.exe -Wl,-q
10RUN: llvm-bolt %t.exe -o %t --relocs --frame-opt=all \
11RUN:   --data=%p/Inputs/exc4sw.fdata --reorder-blocks=cache 2>&1 | \
12RUN:   FileCheck %s --check-prefix=CHECK-BOLT
13
14RUN: llvm-objdump --dwarf=frames %t.exe | grep -A20 -e \
15RUN:   `llvm-nm --numeric-sort %t.exe | grep main | tail -n 1 | \
16RUN:    cut -f1 -d' ' | tail -c9` 2>&1 | FileCheck %s --check-prefix=CHECK-INPUT
17
18RUN: llvm-objdump --dwarf=frames %t | grep -A20 -e \
19RUN:   `llvm-nm --numeric-sort %t | grep main | tail -n 1 | cut -f1 -d' ' | \
20RUN:    tail -c9` 2>&1 | FileCheck %s --check-prefix=CHECK-OUTPUT
21
22CHECK-BOLT: Shrink wrapping moved 2 spills inserting load/stores and 0 spills inserting push/pops
23
24CHECK-INPUT:  DW_CFA_advance_loc: 2
25CHECK-INPUT-NEXT:  DW_CFA_def_cfa_offset: +16
26CHECK-INPUT-NEXT:  DW_CFA_offset: reg13 -16
27CHECK-INPUT-NEXT:  DW_CFA_advance_loc: 2
28CHECK-INPUT-NEXT:  DW_CFA_def_cfa_offset: +24
29CHECK-INPUT-NEXT:  DW_CFA_offset: reg12 -24
30CHECK-INPUT-NEXT:  DW_CFA_advance_loc: 1
31CHECK-INPUT-NEXT:  DW_CFA_def_cfa_offset: +32
32CHECK-INPUT-NEXT:  DW_CFA_offset: reg6 -32
33CHECK-INPUT-NEXT:  DW_CFA_advance_loc: 6
34CHECK-INPUT-NEXT:  DW_CFA_def_cfa_offset: +40
35CHECK-INPUT-NEXT:  DW_CFA_offset: reg3 -40
36CHECK-INPUT-NEXT:  DW_CFA_advance_loc: 6
37CHECK-INPUT-NEXT:  DW_CFA_def_cfa_offset: +48
38
39CHECK-OUTPUT:  DW_CFA_advance_loc: 4
40CHECK-OUTPUT-NEXT:  DW_CFA_def_cfa_offset: +16
41CHECK-OUTPUT-NEXT:  DW_CFA_def_cfa_offset: +24
42CHECK-OUTPUT-NEXT:  DW_CFA_advance_loc: 1
43CHECK-OUTPUT-NEXT:  DW_CFA_def_cfa_offset: +32
44CHECK-OUTPUT-NEXT:  DW_CFA_offset: reg6 -32
45CHECK-OUTPUT-NEXT:  DW_CFA_advance_loc: 6
46CHECK-OUTPUT-NEXT:  DW_CFA_def_cfa_offset: +40
47CHECK-OUTPUT-NEXT:  DW_CFA_offset: reg3 -40
48CHECK-OUTPUT-NEXT:  DW_CFA_advance_loc: 6
49CHECK-OUTPUT-NEXT:  DW_CFA_def_cfa_offset: +48
50