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Thumb2 parsing and encoding for DMB.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139193 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2011-09-06 22:14:58 +00:00
parent 756a0a1f39
commit 06c1a51241
2 changed files with 36 additions and 0 deletions
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4
lib/Target/ARM/ARMInstrThumb2.td
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@ -3588,3 +3588,7 @@ def : t2InstAlias<"teq${p} $Rn, $Rm",
def : t2InstAlias<"tst${p} $Rn, $Rm",
(t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
// Memory barriers
def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb2, HasDB]>;
def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb2, HasDB]>;
//def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb2, HasDB]>;

32
test/MC/ARM/basic-thumb2-instructions.s
View File

@ -368,6 +368,38 @@ _func:
@ CHECK: dbg #15 @ encoding: [0xaf,0xf3,0xff,0x80]
@------------------------------------------------------------------------------
@ DMB
@------------------------------------------------------------------------------
dmb sy
dmb st
dmb sh
dmb ish
dmb shst
dmb ishst
dmb un
dmb nsh
dmb unst
dmb nshst
dmb osh
dmb oshst
dmb
@ CHECK: dmb sy @ encoding: [0xbf,0xf3,0x5f,0x8f]
@ CHECK: dmb st @ encoding: [0xbf,0xf3,0x5e,0x8f]
@ CHECK: dmb ish @ encoding: [0xbf,0xf3,0x5b,0x8f]
@ CHECK: dmb ish @ encoding: [0xbf,0xf3,0x5b,0x8f]
@ CHECK: dmb ishst @ encoding: [0xbf,0xf3,0x5a,0x8f]
@ CHECK: dmb ishst @ encoding: [0xbf,0xf3,0x5a,0x8f]
@ CHECK: dmb nsh @ encoding: [0xbf,0xf3,0x57,0x8f]
@ CHECK: dmb nsh @ encoding: [0xbf,0xf3,0x57,0x8f]
@ CHECK: dmb nshst @ encoding: [0xbf,0xf3,0x56,0x8f]
@ CHECK: dmb nshst @ encoding: [0xbf,0xf3,0x56,0x8f]
@ CHECK: dmb osh @ encoding: [0xbf,0xf3,0x53,0x8f]
@ CHECK: dmb oshst @ encoding: [0xbf,0xf3,0x52,0x8f]
@ CHECK: dmb sy @ encoding: [0xbf,0xf3,0x5f,0x8f]
@------------------------------------------------------------------------------
@ IT
@------------------------------------------------------------------------------