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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2011-08-09 22:02:50 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2011-08-09 22:02:50 +0000 |
| commit | 793b811c5057365d847b7f9ae326358e76facfe2 (patch) | |
| tree | 13e9f4879a8fc0df751b2885f22e57ee6973623a | |
| parent | 51157d22348fdbd4b7975877d5b58e53a6d5d3a2 (diff) | |
| download | external_llvm-793b811c5057365d847b7f9ae326358e76facfe2.zip external_llvm-793b811c5057365d847b7f9ae326358e76facfe2.tar.gz external_llvm-793b811c5057365d847b7f9ae326358e76facfe2.tar.bz2 | |
ARM Disassembler: sign extend branch immediates.
Not sure about BLXi, but this is what the old disassembler did.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137156 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 4 | ||||
| -rw-r--r-- | test/MC/Disassembler/ARM/arm-tests.txt | 3 |
2 files changed, 5 insertions, 2 deletions
diff --git a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index 6087a61..307ce88 100644 --- a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp @@ -1214,11 +1214,11 @@ static bool DecodeBranchImmInstruction(llvm::MCInst &Inst, unsigned Insn, if (pred == 0xF) { Inst.setOpcode(ARM::BLXi); imm |= fieldFromInstruction32(Insn, 24, 1) << 1; - Inst.addOperand(MCOperand::CreateImm(imm)); + Inst.addOperand(MCOperand::CreateImm(SignExtend32<26>(imm))); return true; } - Inst.addOperand(MCOperand::CreateImm(imm)); + Inst.addOperand(MCOperand::CreateImm(SignExtend32<26>(imm))); if (!DecodePredicateOperand(Inst, pred, Address, Decoder)) return false; return true; diff --git a/test/MC/Disassembler/ARM/arm-tests.txt b/test/MC/Disassembler/ARM/arm-tests.txt index 43e6e07..52cd112 100644 --- a/test/MC/Disassembler/ARM/arm-tests.txt +++ b/test/MC/Disassembler/ARM/arm-tests.txt @@ -248,6 +248,9 @@ # CHECK: stc2 p2, cr4, [r9], {157} 0x9d 0x42 0x89 0xfc +# CHECK: bne #-24 +0xfa 0xff 0xff 0x1a + # CHECK: blx #60 0x0f 0x00 0x00 0xfa |