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1## This test reproduces the issue with inserting updated CFI in shrink wrapping2## into the first basic block.3 4# REQUIRES: system-linux5 6# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s -o %t.o7# RUN: link_fdata %s %t.o %t.fdata8# RUN: llvm-strip --strip-unneeded %t.o9# RUN: %clang %cflags %t.o -o %t.exe -Wl,-q -nostdlib10# RUN: llvm-bolt %t.exe -o %t.out --data %t.fdata --frame-opt=all --lite=0 \11# RUN: --print-fop 2>&1 | FileCheck %s12 13## Check shrink wrapping results:14# CHECK: BOLT-INFO: Shrink wrapping moved 0 spills inserting load/stores and 1 spills inserting push/pops15 16## Check that CFI is successfully inserted into the first basic block:17# CHECK: Binary Function "_start" after frame-optimizer18# CHECK: .LBB00 (2 instructions, align : 1)19# CHECK-NEXT: Entry Point20# CHECK: 00000000: !CFI {{.*}}21# CHECK-NEXT: 00000000: je .Ltmp{{.*}}22 23 .globl _start24_start:25 .cfi_startproc26# FDATA: 0 [unknown] 0 1 _start 0 0 627# !CFI OpOffset for reg3/rbx is inserted into this block.28 je a29b: jne _start30# FDATA: 1 _start #b# 1 _start #c# 0 331 32c:33 push %rbx34 .cfi_offset 3, 435 pop %rbx36 37## This basic block is treated as having 0 execution count.38## push and pop will be sinked into this block.39a:40 ud241 .cfi_endproc42