derek.holloway
7502bf64a4
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74 lines
1.5 KiB
ArmAsm
74 lines
1.5 KiB
ArmAsm
# This test ensures that "unclaimed" jump table entries are accounted later
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# in postProcessIndirectBranches and the function is marked as non-simple.
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# The test is compiled from the following source using GCC 12.2 -O3:
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# https://godbolt.org/z/YcPG131s6
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# int func(long long Input) {
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# switch(Input) {
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# case 3: return 1;
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# case 4: return 2;
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# case 6: return 3;
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# case 8: return 4;
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# case 13: return 5;
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# default: __builtin_unreachable();
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# }
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# }
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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 %S/Inputs/unclaimed-jt-entries.c -no-pie %t.o -o %t.exe -Wl,-q
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# RUN: llvm-bolt %t.exe -o %t.out 2>&1 | FileCheck %s
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# CHECK: BOLT-WARNING: 11 unclaimed data relocations remain against function func
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# Run the optimized binary
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# RUN: %t.out 3 | FileCheck %s --check-prefix=CHECK3
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# CHECK3: 1
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# RUN: %t.out 4 | FileCheck %s --check-prefix=CHECK4
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# CHECK4: 2
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# RUN: %t.out 6 | FileCheck %s --check-prefix=CHECK6
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# CHECK6: 3
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# RUN: %t.out 8 | FileCheck %s --check-prefix=CHECK8
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# CHECK8: 4
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# RUN: %t.out 13 | FileCheck %s --check-prefix=CHECK13
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# CHECK13: 5
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.text
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.globl func
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.type func, %function
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.size func, .Lend-func
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func:
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jmp *L4-24(,%rdi,8)
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.L5:
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movl $4, %eax
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ret
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.L9:
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movl $2, %eax
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ret
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.L8:
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movl $1, %eax
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ret
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.L3:
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movl $5, %eax
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ret
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.L6:
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movl $3, %eax
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ret
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.Lend:
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.section .rodata
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.globl L4
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L4:
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.quad .L8
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.quad .L9
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.quad .L3
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.quad .L6
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.quad .L3
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.quad .L5
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.quad .L3
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.quad .L3
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.quad .L3
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.quad .L3
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.quad .L3
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