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a147209ed5
This needed two fixes:
* 32-bit instructions were read in the wrong order. The machine code
swaps the two 16-bit instruction words, which wasn't undone when
decoding instructions.
* Jump and call instructions don't encode the lowest address bit,
which is always zero. Therefore, the address needed to be shifted by
one to fix that.
Differential Revision: https://reviews.llvm.org/D81961
40 lines
1.3 KiB
ArmAsm
40 lines
1.3 KiB
ArmAsm
; RUN: llvm-mc -triple avr -mattr=jmpcall -show-encoding < %s | FileCheck %s
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; RUN: llvm-mc -filetype=obj -triple avr -mattr=jmpcall < %s | llvm-objdump -dr --mattr=jmpcall - | FileCheck -check-prefix=CHECK-INST %s
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foo:
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jmp 200
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jmp -12
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jmp 80
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jmp 0
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jmp foo+1
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jmp 0x03fffe ; Inst{16-0} or k{16-0}
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jmp 0x7c0000 ; Inst{24-20} or k{21-17}
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jmp 0x7ffffe ; all bits set
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; CHECK: jmp 200 ; encoding: [0x0c,0x94,0x64,0x00]
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; CHECK: jmp -12 ; encoding: [0xfd,0x95,0xfa,0xff]
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; CHECK: jmp 80 ; encoding: [0x0c,0x94,0x28,0x00]
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; CHECK: jmp 0 ; encoding: [0x0c,0x94,0x00,0x00]
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; CHECK: jmp foo+1 ; encoding: [0x0c'A',0x94'A',0b00AAAAAA,0x00]
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; CHECK: ; fixup A - offset: 0, value: foo+1, kind: fixup_call
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; CHECK: jmp 262142 ; encoding: [0x0d,0x94,0xff,0xff]
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; CHECK: jmp 8126464 ; encoding: [0xfc,0x95,0x00,0x00]
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; CHECK: jmp 8388606 ; encoding: [0xfd,0x95,0xff,0xff]
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; CHECK-INST: jmp 200
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; CHECK-INST: jmp 8388596
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; CHECK-INST: jmp 80
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; CHECK-INST: jmp 0
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; CHECK-INST: jmp 0
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; CHECK-INST: R_AVR_CALL .text+0x1
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; CHECK-INST: jmp 262142
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; CHECK-INST: jmp 8126464
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; CHECK-INST: jmp 8388606
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