derek.holloway
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88 lines
1.5 KiB
ArmAsm
88 lines
1.5 KiB
ArmAsm
## Check that llvm-bolt correctly updates ambiguous jump table entries that
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## can correspond to either builtin_unreachable() or could be a pointer to
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## the next function.
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# REQUIRES: system-linux
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# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s -o %t.o
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# RUN: %clang %cflags %t.o -o %t.exe -no-pie -Wl,-q
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# RUN: llvm-bolt %t.exe --print-normalized --print-only=foo -o %t.out \
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# RUN: 2>&1 | FileCheck %s
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.text
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.globl _start
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.type _start, %function
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_start:
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.cfi_startproc
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call foo
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ret
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.cfi_endproc
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.size _start, .-_start
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.globl foo
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.type foo, %function
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foo:
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.cfi_startproc
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.LBB00:
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movq 0x8(%rdi), %rdi
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movzbl 0x1(%rdi), %eax
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.LBB00_br:
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jmpq *"JUMP_TABLE/foo.0"(,%rax,8)
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# CHECK: jmpq {{.*}} # JUMPTABLE
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# CHECK-NEXT: Successors: {{.*}}, {{.*}}, {{.*}}, {{.*}}, {{.*}}
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.Ltmp87085:
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xorl %eax, %eax
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retq
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.Ltmp87086:
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cmpb $0x0, 0x8(%rdi)
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setne %al
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retq
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.Ltmp87088:
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movb $0x1, %al
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retq
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.Ltmp87087:
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movzbl 0x14(%rdi), %eax
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andb $0x2, %al
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shrb %al
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retq
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.cfi_endproc
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.size foo, .-foo
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.globl bar
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.type bar, %function
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bar:
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.cfi_startproc
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ret
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.cfi_endproc
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.size bar, .-bar
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# Jump tables
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.section .rodata
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.global jump_table
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jump_table:
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"JUMP_TABLE/foo.0":
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.quad bar
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.quad .Ltmp87085
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.quad bar
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.quad .Ltmp87086
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.quad .Ltmp87087
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.quad .LBB00
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.quad .Ltmp87088
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.quad bar
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.quad .LBB00
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# CHECK: Jump table {{.*}} for function foo
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# CHECK-NEXT: 0x{{.*}} : bar
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# CHECK-NEXT: 0x{{.*}} :
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# CHECK-NEXT: 0x{{.*}} : bar
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# CHECK-NEXT: 0x{{.*}} :
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# CHECK-NEXT: 0x{{.*}} :
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