# 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: %clang %cflags %t.o -o %t.exe -Wl,-q # RUN: llvm-bolt %t.exe --data %t.fdata --reorder-blocks=ext-tsp \ # RUN: --print-finalized \ # RUN: --tail-duplication=moderate --tail-duplication-minimum-offset=1 \ # RUN: --tail-duplication-const-copy-propagation=1 -o %t.out | FileCheck %s # RUN: not %t.exe # RUN: not %t.out # FDATA: 1 main 14 1 main #.BB2# 0 10 # FDATA: 1 main 16 1 main #.BB2# 0 20 # CHECK: BOLT-INFO: tail duplication modified 1 ({{.*}}%) functions; duplicated 1 blocks ({{.*}} bytes) responsible for {{.*}} dynamic executions ({{.*}}% of all block executions) # CHECK: BB Layout : .LBB00, .Ltail-dup0, .Ltmp0, .Ltmp1 # CHECK-NOT: mov $0x2, %rbx .text .globl main .type main, %function .size main, .Lend-main main: mov $0x2, %rbx mov $0x1, %rdi inc %rdi mov %rdi, %rsi jmp .BB2 .BB1: mov $0x9, %rbx .BB2: mov %rbx, %rax mov $0x5, %rbx add %rsi, %rax retq .BB3: mov $0x9, %rbx .BB4: mov $0xa, %rsi add %rbx, %rax add %rsi, %rax .BB5: retq .Lend: