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Thumb2 assembly parsing and encoding for REV.

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llvm-svn: 139813
This commit is contained in:
Jim Grosbach 2011-09-15 18:13:30 +00:00
parent 7c1422b068
commit 9d7aa9bcbc
2 changed files with 18 additions and 0 deletions
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2
lib/Target/ARM/ARMInstrThumb2.td
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@ -3841,3 +3841,5 @@ def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
// Alias for REV without the ".w" optional width specifier.
def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>;

16
test/MC/ARM/basic-thumb2-instructions.s
View File

@ -1425,6 +1425,22 @@ _func:
@ CHECK: rbitne r1, r2 @ encoding: [0x92,0xfa,0xa2,0xf1]
@------------------------------------------------------------------------------
@ REV
@------------------------------------------------------------------------------
rev.w r1, r2
rev r2, r8
itt ne
revne r1, r2
revne r1, r8
@ CHECK: rev.w r1, r2 @ encoding: [0x92,0xfa,0x82,0xf1]
@ CHECK: rev.w r2, r8 @ encoding: [0x98,0xfa,0x88,0xf2]
@ CHECK: itt ne @ encoding: [0x1c,0xbf]
@ CHECK: revne r1, r2 @ encoding: [0x11,0xba]
@ CHECK: revne.w r1, r8 @ encoding: [0x98,0xfa,0x88,0xf1]
@------------------------------------------------------------------------------
@ SUB (register)
@------------------------------------------------------------------------------