forked from OSchip/llvm-project
50 lines
2.0 KiB
Plaintext
50 lines
2.0 KiB
Plaintext
# Check unreachable code elimination
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RUN: %clang %cflags %p/../Inputs/stub.c -fPIC -pie -shared -o %t.so
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RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown \
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RUN: %p/Inputs/unreachable.s -o %t.o
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RUN: %clangxx %cxxflags -no-pie %t.o -o %t.exe %t.so
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RUN: llvm-bolt %t.exe -o %t \
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RUN: -reorder-blocks=none -split-functions -eliminate-unreachable \
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RUN: -funcs=foo -use-gnu-stack -print-cfg -print-finalized \
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RUN: | FileCheck %s --check-prefix=BOLT
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RUN: llvm-objdump -d %t --print-imm-hex --disassemble-symbols=foo \
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RUN: --no-show-raw-insn | FileCheck %s
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BOLT: BB Layout : .LBB{{.*}}, .LFT{{.*}}, .Ltmp{{.*}}, .LFT{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}, .LLP{{.*}}, .LFT{{.*}}, .Ltmp{{.*}}, .LFT{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}
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BOLT: BOLT-INFO: UCE removed 4 blocks and 16 bytes of code.
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BOLT: BB Layout : .LBB{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}, .LLP{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}
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CHECK: <foo>:
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CHECK-NEXT: pushq %rbp
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CHECK-NEXT: movq %rsp, %rbp
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CHECK-NEXT: pushq %rbx
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CHECK-NEXT: subq $0x18, %rsp
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CHECK-NEXT: movq %rdi, -0x18(%rbp)
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CHECK-NEXT: incq -0x18(%rbp)
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CHECK-NEXT: incq -0x18(%rbp)
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CHECK-NEXT: cmpq $0x2, -0x18(%rbp)
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CHECK-NEXT: je 0x[[#%x,JMP1:]]
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CHECK-NEXT: incq -0x18(%rbp)
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CHECK-NEXT: [[#JMP1]]: incq -0x18(%rbp)
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CHECK-NEXT: movq -0x18(%rbp), %rax
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CHECK-NEXT: movq %rax, %rdi
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CHECK-NEXT: callq {{.*}} <bar>
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CHECK-NEXT: movq %rax, %rbx
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CHECK-NEXT: [[#%x,JMP3:]]: movq %rbx, %rax
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CHECK-NEXT: jmp {{.*}}
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CHECK-NEXT: movq %rax, %rdi
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CHECK-NEXT: callq {{.*}} <__cxa_begin_catch@plt>
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CHECK-NEXT: incq -0x18(%rbp)
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CHECK-NEXT: incq -0x18(%rbp)
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CHECK-NEXT: cmpq $0x2, -0x18(%rbp)
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CHECK-NEXT: je 0x[[#%x,JMP2:]]
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CHECK-NEXT: incq -0x18(%rbp)
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CHECK-NEXT: [[#JMP2]]: incq -0x18(%rbp)
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CHECK-NEXT: movq -0x18(%rbp), %rbx
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CHECK-NEXT: callq {{.*}} <__cxa_end_catch@plt>
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CHECK-NEXT: jmp 0x[[#JMP3]]
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CHECK-NEXT: movq -0x8(%rbp), %rbx
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CHECK-NEXT: leave
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CHECK-NEXT: retq
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