mirror of
https://github.com/c64scene-ar/llvm-6502.git
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1febfa28a4
We now (1) correctly decode the branch immediate, (2) modify the immediate to corretly treat it as PC-rel, and (3) properly populate the stub entry. Previously we had been doing each of these wrong. <rdar://problem/17750739> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214285 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1.1 KiB
ArmAsm
40 lines
1.1 KiB
ArmAsm
# RUN: llvm-mc -triple=armv7s-apple-ios7.0.0 -relocation-model=pic -filetype=obj -o %T/foo.o %s
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# RUN: llvm-rtdyld -triple=armv7s-apple-ios7.0.0 -verify -check=%s %/T/foo.o
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.syntax unified
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.section __TEXT,__text,regular,pure_instructions
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.globl bar
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.align 2
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bar:
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# Check lower 16-bits of section difference relocation
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# rtdyld-check: decode_operand(insn1, 1) = (foo-(nextPC+8))[15:0]
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insn1:
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movw r0, :lower16:(foo-(nextPC+8))
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# Check upper 16-bits of section difference relocation
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# rtdyld-check: decode_operand(insn2, 2) = (foo-(nextPC+8))[31:16]
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insn2:
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movt r0, :upper16:(foo-(nextPC+8))
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nextPC:
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add r0, pc, r0
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# Check stub generation by referencing a common symbol, 'baz'. Check both the
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# Content of the stub, and the reference to the stub.
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# Stub should contain '0xe51ff004' (ldr pc, [pc, #-4]), followed by the target.
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#
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# rtdyld-check: *{4}(stub_addr(foo.o, __text, baz)) = 0xe51ff004
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# rtdyld-check: *{4}(stub_addr(foo.o, __text, baz) + 4) = baz
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#
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# rtdyld-check: decode_operand(insn3, 0) = stub_addr(foo.o, __text, baz) - (insn3 + 8)
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insn3:
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bl baz
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bx lr
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.globl foo
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.align 2
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foo:
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bx lr
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.comm baz, 4, 2
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.subsections_via_symbols
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