forked from OSchip/llvm-project
84 lines
2.2 KiB
ArmAsm
84 lines
2.2 KiB
ArmAsm
# REQUIRES: aarch64
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# foo.s and bar.s both contain TU-local symbols (think static function)
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# with the same name, and both need a thunk. This tests that ld64.lld doesn't
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# create a duplicate symbol for the two functions.
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# Test this both when the TU-local symbol is the branch source or target,
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# and for both forward and backwards jumps.
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# RUN: rm -rf %t; split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin %t/foo.s -o %t/foo.o
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# RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin %t/bar.s -o %t/bar.o
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# RUN: %lld -arch arm64 -lSystem -o %t.out %t/foo.o %t/bar.o
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#--- foo.s
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.subsections_via_symbols
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# Note: No .globl, since these are TU-local symbols.
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.p2align 2
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_early_jumping_local_fn: b _some_late_external
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.p2align 2
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_early_landing_local_fn: ret
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.globl _some_early_external
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.p2align 2
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_some_early_external: b _late_landing_local_fn
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## 0x8000000 is 128 MiB, one more than the forward branch limit.
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## Distribute that over two functions since our thunk insertion algorithm
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## can't deal with a single function that's 128 MiB.
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.global _spacer1, _spacer2
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_spacer1:
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.space 0x4000000
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_spacer2:
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.space 0x4000000
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# Note: No .globl, since these are TU-local symbols.
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.p2align 2
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_late_jumping_local_fn: b _some_early_external
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.p2align 2
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_late_landing_local_fn: ret
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.globl _some_late_external
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.p2align 2
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_some_late_external: b _early_landing_local_fn
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#--- bar.s
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.subsections_via_symbols
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# Note: No .globl, since these are TU-local symbols.
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.p2align 2
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_early_jumping_local_fn: b _some_other_late_external
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.p2align 2
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_early_landing_local_fn: ret
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.globl _some_other_early_external
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.p2align 2
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_some_other_early_external: b _late_landing_local_fn
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## 0x8000000 is 128 MiB, one more than the forward branch limit.
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## Distribute that over two functions since our thunk insertion algorithm
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## can't deal with a single function that's 128 MiB.
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.global _other_spacer1, _other_spacer1
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_spacer1:
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.space 0x4000000
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_spacer2:
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.space 0x4000000
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# Note: No .globl, since these are TU-local symbols.
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.p2align 2
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_late_jumping_local_fn: b _some_other_early_external
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.p2align 2
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_late_landing_local_fn: ret
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.globl _some_other_late_external
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.p2align 2
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_some_other_late_external: b _early_landing_local_fn
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.globl _main
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_main:
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ret
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