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TheRock/compiler/amd-llvm/lld/test/ELF/basic-block-sections-and-icf.s
derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

48 lines
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ArmAsm

# REQUIRES: x86
## basic-block-sections tests.
## This simple test checks foo is folded into bar with bb sections
## and the jumps are deleted.
# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
# RUN: ld.lld --optimize-bb-jumps --icf=all %t.o -o %t.out
# RUN: llvm-objdump -d %t.out| FileCheck %s
# CHECK: <foo>:
# CHECK-NEXT: nopl (%rax)
# CHECK-NEXT: je 0x{{[[:xdigit:]]+}} <aa.BB.foo>
# CHECK-NOT: jmp
# CHECK: <a.BB.foo>:
## Explicity check that bar is folded and not emitted.
# CHECK-NOT: <bar>:
# CHECK-NOT: <a.BB.bar>:
# CHECK-NOT: <aa.BB.bar>:
.section .text.bar,"ax",@progbits
.type bar,@function
bar:
nopl (%rax)
jne a.BB.bar
jmp aa.BB.bar
.section .text.a.BB.bar,"ax",@progbits,unique,3
a.BB.bar:
nopl (%rax)
aa.BB.bar:
ret
.section .text.foo,"ax",@progbits
.type foo,@function
foo:
nopl (%rax)
jne a.BB.foo
jmp aa.BB.foo
.section .text.a.BB.foo,"ax",@progbits,unique,2
a.BB.foo:
nopl (%rax)
aa.BB.foo:
ret