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Specify that the thumb setend and blx <immed> instructions are not valid on an m-class target

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214871 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Keith Walker 2014-08-05 15:11:59 +00:00
parent 966fc9344b
commit f2115a0b0d
2 changed files with 28 additions and 2 deletions
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4
lib/Target/ARM/ARMInstrThumb.td
View File

@ -311,7 +311,7 @@ def tHLT : T1I<(outs), (ins imm0_63:$val), NoItinerary, "hlt\t$val",
}
def tSETEND : T1I<(outs), (ins setend_op:$end), NoItinerary, "setend\t$end",
[]>, T1Encoding<0b101101>, Deprecated<HasV8Ops> {
[]>, T1Encoding<0b101101>, Requires<[IsNotMClass]>, Deprecated<HasV8Ops> {
bits<1> end;
// A8.6.156
let Inst{9-5} = 0b10010;
@ -466,7 +466,7 @@ let isCall = 1,
(outs), (ins pred:$p, t_blxtarget:$func), IIC_Br,
"blx${p}\t$func",
[(ARMcall tglobaladdr:$func)]>,
Requires<[IsThumb, HasV5T]>, Sched<[WriteBrL]> {
Requires<[IsThumb, HasV5T, IsNotMClass]>, Sched<[WriteBrL]> {
bits<24> func;
let Inst{26} = func{23};
let Inst{25-16} = func{20-11};

26
test/MC/ARM/thumb-not-mclass.s Normal file
View File

@ -0,0 +1,26 @@
@ RUN: not llvm-mc -triple=thumbv7m-apple-darwin -show-encoding < %s 2> %t
@ RUN: FileCheck < %t %s
@ RUN: not llvm-mc -triple=thumbv6m -show-encoding < %s 2> %t
@ RUN: FileCheck < %t %s
.syntax unified
.globl _func
@ Check that the assembler rejects thumb instructions that are not valid
@ on mclass.
@------------------------------------------------------------------------------
@ BLX (immediate)
@------------------------------------------------------------------------------
blx _baz
@ CHECK: error: instruction requires: !armv*m
@------------------------------------------------------------------------------
@ SETEND
@------------------------------------------------------------------------------
setend be
setend le
@ CHECK: error: invalid operand for instruction
@ CHECK: error: invalid operand for instruction