reduced test case for https://github.com/llvm/llvm-project/issues/58385

gistfile1.txt

> llc -fast-isel -function-sections -data-sections --relocation-model=pic reduced.test.ll -o - | tee /dev/stderr | clang -fpie -fdata-sections -ffunction-sections -O1 -o reduced.test -x assembler -; and otool -t -v reduced.test
reduced.test:
(__TEXT,__text) section
_my_function:
0000000100003e88        stp     x29, x30, [sp, #-0x10]!
0000000100003e8c        adrp    x8, 517 ; 0x100208000
0000000100003e90        add     x9, x8, #0xe0
0000000100003e94        str     x0, [x9]
0000000100003e98        tbnz    w1, #0x0, 0x100003ea8
0000000100003e9c        ldr     x0, [x8, #0xe0]
0000000100003ea0        bl      _my_function2
0000000100003ea4        brk     #0x1
0000000100003ea8        bl      ___asan_report_load8
0000000100003eac        brk     #0x1
_my_function2:
0000000100003eb0        stp     x29, x30, [sp, #-0x10]!
0000000100003eb4        mov     x0, xzr
0000000100003eb8        bl      0x100003ef0 ; symbol stub for: __exit
0000000100003ebc        ldp     x29, x30, [sp], #0x10
0000000100003ec0        ret
___asan_report_load8:
0000000100003ec4        stp     x29, x30, [sp, #-0x10]!
0000000100003ec8        bl      0x100003efc ; symbol stub for: _abort
0000000100003ecc        ldp     x29, x30, [sp], #0x10
0000000100003ed0        ret
_main:
0000000100003ed4        stp     x29, x30, [sp, #-0x10]!
0000000100003ed8        adr     x0, #0x4128
0000000100003edc        nop
0000000100003ee0        and     w1, wzr, #0x1
0000000100003ee4        bl      _my_function
0000000100003ee8        ldp     x29, x30, [sp], #0x10
0000000100003eec        ret

reduced.test.ll

target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "arm64-apple-macosx12.0.0"

@big_padding1 = global { [2 x [1024 x [1024 x i8] ] ], [7 x [32 x i8] ] } zeroinitializer
@my_global = global { ptr, [24 x i8] } zeroinitializer
@big_padding2 = global { [2 x [1024 x [1024 x i8] ] ], [13 x [32 x i8] ] } zeroinitializer

define void @my_function(ptr %0, i1 %1) personality ptr null {
  store ptr %0, ptr @my_global, align 8
  br label %3

3:                                                ; preds = %2
  br i1 %1, label %4, label %5

4:                                                ; preds = %3
  call void @__asan_report_load8()
  unreachable

5:                                                ; preds = %3
  br label %6

6:                                                ; preds = %5
  %7 = load ptr, ptr @my_global, align 8
  br label %8

8:                                                ; preds = %6
  call void @my_function2(ptr %7)
  br label %9

9:                                                ; preds = %8
  %10 = call ptr null(ptr null)
  ret void
}

declare void @_exit(i64)

define void @my_function2(ptr) {
  call void @_exit(i64 0)
  ret void
}

declare void @abort()

define void @__asan_report_load8() {
  call void @abort()
  ret void
}

define void @main() {
  call void @my_function(ptr @big_padding1, i1 false)
  ret void
}