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Fix the encoding of t2ISB by using the right class and also parse it correctly

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llvm-svn: 123776
This commit is contained in:
Bruno Cardoso Lopes 2011-01-18 21:17:09 +00:00
parent df668227fb
commit 6e4c5af01e
4 changed files with 7 additions and 2 deletions
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2
lib/Target/ARM/ARMInstrThumb2.td
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@ -2808,7 +2808,7 @@ def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
}
// ISB has only full system option -- for disassembly only
def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
def t2ISB : AInoP<(outs), (ins), ThumbFrm, NoItinerary, "isb", "",
[/* For disassembly only; pattern left blank */]>,
Requires<[IsThumb2, HasV7]> {
let Inst{31-4} = 0xf3bf8f6;

2
lib/Target/ARM/AsmParser/ARMAsmParser.cpp
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@ -1193,7 +1193,7 @@ GetMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
Mnemonic == "cps" || Mnemonic == "mcr2" || Mnemonic == "it" ||
Mnemonic == "mcrr2" || Mnemonic == "cbz" || Mnemonic == "cdp2" ||
Mnemonic == "trap" || Mnemonic == "mrc2" || Mnemonic == "mrrc2" ||
Mnemonic == "dsb" || Mnemonic == "movs" ||
Mnemonic == "dsb" || Mnemonic == "movs" || Mnemonic == "isb" ||
(isThumb && Mnemonic == "bkpt")) {
CanAcceptPredicationCode = false;
} else {

3
test/MC/ARM/arm_instructions.s
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@ -130,3 +130,6 @@
@ CHECK: bkpt #10 @ encoding: [0x7a,0x00,0x20,0xe1]
bkpt #10
@ CHECK: isb @ encoding: [0x6f,0xf0,0x7f,0xf5]
isb

2
test/MC/ARM/thumb2.s
View File

@ -164,4 +164,6 @@
ldrsh.w r0, [r0]
@ CHECK: bfi r0, r0, #5, #7 @ encoding: [0x60,0xf3,0x4b,0x10]
bfi r0, r0, #5, #7
@ CHECK: isb @ encoding: [0xbf,0xf3,0x6f,0x8f]
isb