1# REQUIRES: system-linux 2 3# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown \ 4# RUN: %s -o %t.o 5# RUN: link_fdata %s %t.o %t.fdata 6# RUN: %clang %cflags %t.o -o %t.exe -Wl,-q 7# RUN: llvm-bolt %t.exe --data %t.fdata --reorder-blocks=ext-tsp \ 8# RUN: --print-finalized \ 9# RUN: --tail-duplication=moderate --tail-duplication-minimum-offset=1 \ 10# RUN: --tail-duplication-const-copy-propagation=1 -o %t.out | FileCheck %s 11# RUN: %t.exe; echo $? 12# RUN: %t.out; echo $? 13 14# FDATA: 1 main 14 1 main #.BB2# 0 10 15# FDATA: 1 main 16 1 main #.BB2# 0 20 16# CHECK: BOLT-INFO: tail duplication modified 1 ({{.*}}%) functions; duplicated 1 blocks ({{.*}} bytes) responsible for {{.*}} dynamic executions ({{.*}}% of all block executions) 17# CHECK: BB Layout : .LBB00, .Ltail-dup0, .Ltmp0, .Ltmp1 18# CHECK-NOT: mov $0x2, %rbx 19 20 .text 21 .globl main 22 .type main, %function 23 .size main, .Lend-main 24main: 25 mov $0x2, %rbx 26 mov $0x1, %rdi 27 inc %rdi 28 mov %rdi, %rsi 29 jmp .BB2 30.BB1: 31 mov $0x9, %rbx 32.BB2: 33 mov %rbx, %rax 34 mov $0x5, %rbx 35 add %rsi, %rax 36 retq 37.BB3: 38 mov $0x9, %rbx 39.BB4: 40 mov $0xa, %rsi 41 add %rbx, %rax 42 add %rsi, %rax 43.BB5: 44 retq 45.Lend: 46