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authorOwen Anderson <resistor@mac.com>2011-11-02 17:46:18 +0000
committerOwen Anderson <resistor@mac.com>2011-11-02 17:46:18 +0000
commit244006db5c4d48878dc5fdc86976acdaff96cfaa (patch)
tree07b88e4eae4d3add2585fafc7a05e52889529d55 /lib/Target
parente31b42a6f5598691498808673648211916bf4d0f (diff)
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The rules disallowing single-register reglist operands only apply to the POP alias, not to LDM/STM instructions. Revert r143552.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143553 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
-rw-r--r--lib/Target/ARM/Disassembler/ARMDisassembler.cpp6
1 files changed, 1 insertions, 5 deletions
diff --git a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
index 8dab153132..6927d2d053 100644
--- a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
+++ b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
@@ -1111,11 +1111,7 @@ static DecodeStatus DecodeRegListOperand(llvm::MCInst &Inst, unsigned Val,
}
// Empty register lists are not allowed.
- uint32_t popcnt = CountPopulation_32(Val);
- if (popcnt == 0) return MCDisassembler::Fail;
- // and one-register lists are unpredictable.
- else if (popcnt == 1) Check(S, MCDisassembler::SoftFail);
-
+ if (CountPopulation_32(Val) == 0) return MCDisassembler::Fail;
for (unsigned i = 0; i < 16; ++i) {
if (Val & (1 << i)) {
if (!Check(S, DecodeGPRRegisterClass(Inst, i, Address, Decoder)))