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35c35dd4f1
Its existence is largely historical, apparently we tried to make ARM object files look maybe-almost-possibly runnable by putting our best guess at the actual value into relocated locations. Of course, the real linker then comes along and can completely change things. But it should only be there for word-sized and movw/movt relocations. It can't be encoded in branch relocations, and I've seen it mess up validity calculations twice in the last couple of weeks so the default is clearly problematic. llvm-svn: 279773
30 lines
732 B
ArmAsm
30 lines
732 B
ArmAsm
@ RUN: llvm-mc -triple thumbv7-apple-ios %s -filetype=obj -o %t
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@ RUN: llvm-objdump -macho -d %t -triple thumbv7-apple-ios | FileCheck %s
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@ ARM relocatable object files try to look like they're pre-linked, so the
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@ offsets in the instructions are a best-guess. I suspect the "-3" should b
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@ CHECK: movw r1, :lower16:((_bar-8)-3)
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@ [...]
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@ CHECK: .long {{[0-9]*[13579]}}
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.thumb
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.thumb_func _foo
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_foo:
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movw r1, :lower16:(_bar-(LPC2_0+4))
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movt r1, :upper16:(_bar-(LPC2_0+4))
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LPC2_0:
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add r1, pc
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ldr r0, Lconstpool
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bx lr
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Lconstpool:
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.data_region
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.word _bar
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.end_data_region
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.thumb_func _bar
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_bar:
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bx lr
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.subsections_via_symbols
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