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1# REQUIRES: system-linux2 3# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown \4# RUN: %s -o %t.o5# RUN: link_fdata %s %t.o %t.fdata6# RUN: %clang %cflags %t.o -o %t.exe -Wl,-q7# RUN: llvm-bolt %t.exe --data %t.fdata --reorder-blocks=ext-tsp \8# RUN: --print-finalized --tail-duplication=moderate \9# RUN: --tail-duplication-minimum-offset=1 -o %t.out | FileCheck %s10# RUN: llvm-bolt %t.exe --data %t.fdata --print-finalized \11# RUN: --tail-duplication=aggressive --tail-duplication-minimum-offset=1 \12# RUN: -o %t.out | FileCheck %s --check-prefix CHECK-NOLOOP13 14# FDATA: 1 main 2 1 main #.BB2# 0 1015# FDATA: 1 main 4 1 main #.BB2# 0 2016# CHECK: BOLT-INFO: tail duplication modified 1 ({{.*}}%) functions; duplicated 1 blocks (1 bytes) responsible for {{.*}} dynamic executions ({{.*}}% of all block executions)17# CHECK: BB Layout : .LBB00, .Ltail-dup0, .Ltmp0, .Ltmp118 19## Check that the successor of Ltail-dup0 is .LBB00, not itself.20# CHECK-NOLOOP: .Ltail-dup0 (1 instructions, align : 1)21# CHECK-NOLOOP: Predecessors: .LBB0022# CHECK-NOLOOP: retq23# CHECK-NOLOOP: .Ltmp0 (1 instructions, align : 1)24 25 .text26 .globl main27 .type main, %function28 .size main, .Lend-main29main:30 xor %eax, %eax31 jmp .BB232.BB1:33 inc %rax34.BB2:35 retq36# For relocations against .text37 call exit38.Lend:39