derek.holloway
7502bf64a4
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129 lines
2.7 KiB
ArmAsm
129 lines
2.7 KiB
ArmAsm
# REQUIRES: x86
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## basic-block-sections tests.
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## This simple test checks if redundant direct jumps are converted to
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## implicit fallthrus. The jcc's must be converted to their inverted
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## opcode, for instance jne to je and jmp must be deleted.
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# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
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# RUN: ld.lld --optimize-bb-jumps %t.o -o %t.out
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# RUN: llvm-objdump -d %t.out| FileCheck %s
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# CHECK: <foo>:
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# CHECK-NEXT: nopl (%rax)
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# CHECK-NEXT: jne 0x{{[[:xdigit:]]+}} <r.BB.foo>
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# CHECK-NOT: jmp
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.section .text,"ax",@progbits
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.type foo,@function
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foo:
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nopl (%rax)
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je a.BB.foo
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jmp r.BB.foo
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# CHECK: <a.BB.foo>:
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# CHECK-NEXT: nopl (%rax)
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# CHECK-NEXT: je 0x{{[[:xdigit:]]+}} <r.BB.foo>
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# CHECK-NOT: jmp
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.section .text,"ax",@progbits,unique,3
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a.BB.foo:
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nopl (%rax)
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jne aa.BB.foo
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jmp r.BB.foo
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# CHECK: <aa.BB.foo>:
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# CHECK-NEXT: nopl (%rax)
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# CHECK-NEXT: jle 0x{{[[:xdigit:]]+}} <r.BB.foo>
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# CHECK-NOT: jmp
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#
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.section .text,"ax",@progbits,unique,4
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aa.BB.foo:
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nopl (%rax)
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jg aaa.BB.foo
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jmp r.BB.foo
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# CHECK: <aaa.BB.foo>:
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# CHECK-NEXT: nopl (%rax)
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# CHECK-NEXT: jl 0x{{[[:xdigit:]]+}} <r.BB.foo>
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# CHECK-NOT: jmp
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#
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.section .text,"ax",@progbits,unique,5
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aaa.BB.foo:
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nopl (%rax)
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jge aaaa.BB.foo
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jmp r.BB.foo
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# CHECK: <aaaa.BB.foo>:
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# CHECK-NEXT: nopl (%rax)
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# CHECK-NEXT: jae 0x{{[[:xdigit:]]+}} <r.BB.foo>
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# CHECK-NOT: jmp
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#
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.section .text,"ax",@progbits,unique,6
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aaaa.BB.foo:
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nopl (%rax)
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jb aaaaa.BB.foo
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jmp r.BB.foo
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# CHECK: <aaaaa.BB.foo>:
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# CHECK-NEXT: nopl (%rax)
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# CHECK-NEXT: ja 0x{{[[:xdigit:]]+}} <r.BB.foo>
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# CHECK-NOT: jmp
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#
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.section .text,"ax",@progbits,unique,7
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aaaaa.BB.foo:
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nopl (%rax)
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jbe aaaaaa.BB.foo
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jmp r.BB.foo
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# CHECK: <aaaaaa.BB.foo>:
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# CHECK-NEXT: nopl (%rax)
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# CHECK-NEXT: jge 0x{{[[:xdigit:]]+}} <r.BB.foo>
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# CHECK-NOT: jmp
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#
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.section .text,"ax",@progbits,unique,8
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aaaaaa.BB.foo:
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nopl (%rax)
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jl aaaaaaa.BB.foo
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jmp r.BB.foo
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# CHECK: <aaaaaaa.BB.foo>:
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# CHECK-NEXT: nopl (%rax)
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# CHECK-NEXT: jg 0x{{[[:xdigit:]]+}} <r.BB.foo>
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# CHECK-NOT: jmp
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#
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.section .text,"ax",@progbits,unique,9
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aaaaaaa.BB.foo:
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nopl (%rax)
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jle aaaaaaaa.BB.foo
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jmp r.BB.foo
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# CHECK: <aaaaaaaa.BB.foo>:
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# CHECK-NEXT: nopl (%rax)
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# CHECK-NEXT: jbe 0x{{[[:xdigit:]]+}} <r.BB.foo>
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# CHECK-NOT: jmp
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#
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.section .text,"ax",@progbits,unique,10
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aaaaaaaa.BB.foo:
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nopl (%rax)
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ja aaaaaaaaa.BB.foo
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jmp r.BB.foo
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# CHECK: <aaaaaaaaa.BB.foo>:
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# CHECK-NEXT: nopl (%rax)
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# CHECK-NEXT: jb 0x{{[[:xdigit:]]+}} <r.BB.foo>
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# CHECK-NOT: jmp
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#
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.section .text,"ax",@progbits,unique,11
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aaaaaaaaa.BB.foo:
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nopl (%rax)
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jae aaaaaaaaaa.BB.foo
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jmp r.BB.foo
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.section .text,"ax",@progbits,unique,20
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aaaaaaaaaa.BB.foo:
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nopl (%rax)
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r.BB.foo:
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ret
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