| # 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 --tail-duplication=moderate \ |
| # RUN: --tail-duplication-minimum-offset=1 -o %t.out | FileCheck %s |
| # RUN: llvm-bolt %t.exe --data %t.fdata --print-finalized \ |
| # RUN: --tail-duplication=aggressive --tail-duplication-minimum-offset=1 \ |
| # RUN: -o %t.out | FileCheck %s --check-prefix CHECK-NOLOOP |
| |
| # FDATA: 1 main 2 1 main #.BB2# 0 10 |
| # FDATA: 1 main 4 1 main #.BB2# 0 20 |
| # CHECK: BOLT-INFO: tail duplication modified 1 ({{.*}}%) functions; duplicated 1 blocks (1 bytes) responsible for {{.*}} dynamic executions ({{.*}}% of all block executions) |
| # CHECK: BB Layout : .LBB00, .Ltail-dup0, .Ltmp0, .Ltmp1 |
| |
| ## Check that the successor of Ltail-dup0 is .LBB00, not itself. |
| # CHECK-NOLOOP: .Ltail-dup0 (1 instructions, align : 1) |
| # CHECK-NOLOOP: Predecessors: .LBB00 |
| # CHECK-NOLOOP: retq |
| # CHECK-NOLOOP: .Ltmp0 (1 instructions, align : 1) |
| |
| .text |
| .globl main |
| .type main, %function |
| .size main, .Lend-main |
| main: |
| xor %eax, %eax |
| jmp .BB2 |
| .BB1: |
| inc %rax |
| .BB2: |
| retq |
| # For relocations against .text |
| call exit |
| .Lend: |
