xref: /llvm-project/llvm/test/tools/llvm-exegesis/X86/latency/subprocess-preserved-registers.s (revision 63c314835458211b165e48b2278800ea6d52620a)
1# REQUIRES: exegesis-can-measure-latency, x86_64-linux
2
3# RUN: llvm-exegesis -mtriple=x86_64-unknown-unknown -mode=latency -snippets-file=%s -execution-mode=subprocess | FileCheck %s
4
5# Check that the value of the registers preserved in subprocess mode while
6# making the ioctl system call are actually preserved correctly.
7
8# LLVM-EXEGESIS-DEFREG RAX 3
9# LLVM-EXEGESIS-DEFREG RCX 5
10# LLVM-EXEGESIS-DEFREG RDX 7
11# LLVM-EXEGESIS-DEFREG RBX B
12# LLVM-EXEGESIS-DEFREG RSI D
13# LLVM-EXEGESIS-DEFREG RDI 11
14# LLVM-EXEGESIS-DEFREG RSP 13
15# LLVM-EXEGESIS-DEFREG RBP 17
16# LLVM-EXEGESIS-DEFREG R8 1D
17# LLVM-EXEGESIS-DEFREG R9 1F
18# LLVM-EXEGESIS-DEFREG R10 29
19# LLVM-EXEGESIS-DEFREG R11 2B
20# LLVM-EXEGESIS-DEFREG R12 2F
21# LLVM-EXEGESIS-DEFREG R13 35
22# LLVM-EXEGESIS-DEFREG R14 127
23# LLVM-EXEGESIS-DEFREG R15 0
24
25cmpq $0x3, %rax
26cmovneq %r14, %r15
27cmpq $0x5, %rcx
28cmovneq %r14, %r15
29cmpq $0x7, %rdx
30cmovneq %r14, %r15
31cmpq $0xB, %rbx
32cmovneq %r14, %r15
33cmpq $0xD, %rsi
34cmovneq %r14, %r15
35cmpq $0x11, %rdi
36cmovneq %r14, %r15
37cmpq $0x13, %rsp
38cmovneq %r14, %r15
39cmpq $0x17, %rbp
40cmovneq %r14, %r15
41cmpq $0x1d, %r8
42cmovneq %r14, %r15
43cmpq $0x1f, %r9
44cmovneq %r14, %r15
45cmpq $0x29, %r10
46cmovneq %r14, %r15
47cmpq $0x2b, %r11
48cmovneq %r14, %r15
49cmpq $0x2f, %r12
50cmovneq %r14, %r15
51cmpq $0x35, %r13
52cmovneq %r14, %r15
53
54movq $60, %rax
55movq %r15, %rdi
56syscall
57
58# CHECK-NOT: error:           'Child benchmarking process exited with non-zero exit code: Child process returned with unknown exit code'
59
60