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llvm-project/llvm/test/MC/ARM/arm-branches.s

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ARM: validate immediate branch targets in AsmParser. Immediate branch targets aren't commonly used, but if they are we should make sure they can actually be encoded. This means they must be divisible by 2 when targeting Thumb mode, and by 4 when targeting ARM mode. Also do a little naming cleanup while I was changing everything around anyway. llvm-svn: 275116
2016-07-12 06:29:37 +08:00
@ RUN: llvm-mc -triple=armv7-apple-darwin -show-encoding < %s | FileCheck %s
@------------------------------------------------------------------------------
@ Branch targets destined for ARM mode must == 0 (mod 4), otherwise (mod 2).
@------------------------------------------------------------------------------
b #4
bl #4
beq #4
blx #2
@ CHECK: b #4 @ encoding: [0x01,0x00,0x00,0xea]
@ CHECK: bl #4 @ encoding: [0x01,0x00,0x00,0xeb]
@ CHECK: beq #4 @ encoding: [0x01,0x00,0x00,0x0a]
@ CHECK: blx #2 @ encoding: [0x00,0x00,0x00,0xfb]