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# REQUIRES: system-linux
# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown \
# RUN: %s -o %t.o
# RUN: link_fdata %s %t.o %t.fdata
# RUN: link_fdata %s %t.o %t.fdata2 "FDATA2"
# RUN: link_fdata %s %t.o %t.fdata3 "FDATA3"
# RUN: %clang %cflags %t.o -o %t.exe -Wl,-q
# RUN: llvm-bolt %t.exe -data %t.fdata -reorder-blocks=cache+ -print-finalized \
# RUN: -loop-inversion-opt -o %t.out | FileCheck %s
# RUN: llvm-bolt %t.exe -data %t.fdata2 -reorder-blocks=cache+ -print-finalized \
# RUN: -loop-inversion-opt -o %t.out2 | FileCheck --check-prefix="CHECK2" %s
# RUN: llvm-bolt %t.exe -data %t.fdata3 -reorder-blocks=none -print-finalized \
# RUN: -loop-inversion-opt -o %t.out3 | FileCheck --check-prefix="CHECK3" %s
# The case where the loop is used:
# FDATA: 1 main 2 1 main #.J1# 0 420
# FDATA: 1 main b 1 main #.Jloop# 0 420
# FDATA: 1 main b 1 main d 0 1
# CHECK: BB Layout : .LBB00, .Ltmp0, .Ltmp1, .LFT0
# The case where the loop is unused:
# FDATA2: 1 main 2 1 main #.J1# 0 420
# FDATA2: 1 main b 1 main #.Jloop# 0 1
# FDATA2: 1 main b 1 main d 0 420
# CHECK2: BB Layout : .LBB00, .Ltmp1, .LFT0, .Ltmp0
# The case where the loop does not require rotation:
# FDATA3: 1 main 2 1 main #.J1# 0 420
# FDATA3: 1 main b 1 main #.Jloop# 0 420
# FDATA3: 1 main b 1 main d 0 1
# CHECK3: BB Layout : .LBB00, .Ltmp0, .Ltmp1, .LFT0
.text
.globl main
.type main, %function
.size main, .Lend-main
main:
xor %eax, %eax
jmp .J1
.Jloop:
inc %rax
.J1:
cmp $16, %rax
jl .Jloop
retq
.Lend:
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