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| author | Jiangning Liu <jiangning.liu@arm.com> | 2012-08-02 08:29:50 +0000 |
|---|---|---|
| committer | Jiangning Liu <jiangning.liu@arm.com> | 2012-08-02 08:29:50 +0000 |
| commit | fd652df8b36a9d3e6b09ae2b9f7bcb07e88fdfaa (patch) | |
| tree | 5d0ce3d875c3c64330d094500418b1470087d2ad /lib/Target/ARM/InstPrinter | |
| parent | c1b7ca5ba28ded2d83ae534c8e072c2538d43295 (diff) | |
| download | llvm-fd652df8b36a9d3e6b09ae2b9f7bcb07e88fdfaa.tar.gz llvm-fd652df8b36a9d3e6b09ae2b9f7bcb07e88fdfaa.tar.bz2 llvm-fd652df8b36a9d3e6b09ae2b9f7bcb07e88fdfaa.tar.xz | |
Fix #13035, a bug around Thumb instruction LDRD/STRD with negative #0 offset index issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161162 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/InstPrinter')
| -rw-r--r-- | lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp index ad99c14cee..8b9109ec98 100644 --- a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp +++ b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp @@ -972,12 +972,17 @@ void ARMInstPrinter::printT2AddrModeImm8s4Operand(const MCInst *MI, O << "[" << getRegisterName(MO1.getReg()); - int32_t OffImm = (int32_t)MO2.getImm() / 4; + int32_t OffImm = (int32_t)MO2.getImm(); + + assert(((OffImm & 0x3) == 0) && "Not a valid immediate!"); + // Don't print +0. - if (OffImm < 0) - O << ", #-" << -OffImm * 4; + if (OffImm == INT32_MIN) + O << ", #-0"; + else if (OffImm < 0) + O << ", #-" << -OffImm; else if (OffImm > 0) - O << ", #" << OffImm * 4; + O << ", #" << OffImm; O << "]"; } @@ -1009,15 +1014,17 @@ void ARMInstPrinter::printT2AddrModeImm8s4OffsetOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O) { const MCOperand &MO1 = MI->getOperand(OpNum); - int32_t OffImm = (int32_t)MO1.getImm() / 4; + int32_t OffImm = (int32_t)MO1.getImm(); + + assert(((OffImm & 0x3) == 0) && "Not a valid immediate!"); + // Don't print +0. - if (OffImm != 0) { - O << ", "; - if (OffImm < 0) - O << "#-" << -OffImm * 4; - else if (OffImm > 0) - O << "#" << OffImm * 4; - } + if (OffImm == INT32_MIN) + O << ", #-0"; + else if (OffImm < 0) + O << ", #-" << -OffImm; + else if (OffImm > 0) + O << ", #" << OffImm; } void ARMInstPrinter::printT2AddrModeSoRegOperand(const MCInst *MI, |