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| author | Jim Grosbach <grosbach@apple.com> | 2010-09-23 23:33:56 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2010-09-23 23:33:56 +0000 |
| commit | 453900814e5245fd823b2b24ee9da9b5e8b4bfc4 (patch) | |
| tree | e646e0de7a91c00c3c1b98a329e5370e1656cbcf | |
| parent | b327e1374025f877f323d47b812e543e350c9885 (diff) | |
| download | external_llvm-453900814e5245fd823b2b24ee9da9b5e8b4bfc4.zip external_llvm-453900814e5245fd823b2b24ee9da9b5e8b4bfc4.tar.gz external_llvm-453900814e5245fd823b2b24ee9da9b5e8b4bfc4.tar.bz2 | |
ARM-mode eh.sjlj.setjmp pseudo MC-inst lowering expansion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114707 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMAsmPrinter.cpp | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMAsmPrinter.cpp b/lib/Target/ARM/ARMAsmPrinter.cpp index 72d34b9..9501f6a 100644 --- a/lib/Target/ARM/ARMAsmPrinter.cpp +++ b/lib/Target/ARM/ARMAsmPrinter.cpp @@ -1748,6 +1748,83 @@ void ARMAsmPrinter::printInstructionThroughMCStreamer(const MachineInstr *MI) { } break; } + case ARM::Int_eh_sjlj_setjmp_nofp: + case ARM::Int_eh_sjlj_setjmp: { // FIXME: Remove asmstring from td file. + // Two incoming args: GPR:$src, GPR:$val + // add $val, pc, #8 + // str $val, [$src, #+4] + // mov r0, #0 + // add pc, pc, #0 + // mov r0, #1 + unsigned SrcReg = MI->getOperand(0).getReg(); + unsigned ValReg = MI->getOperand(1).getReg(); + + { + MCInst TmpInst; + TmpInst.setOpcode(ARM::ADDri); + TmpInst.addOperand(MCOperand::CreateReg(ValReg)); + TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); + TmpInst.addOperand(MCOperand::CreateImm(8)); + // Predicate. + TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); + TmpInst.addOperand(MCOperand::CreateReg(0)); + // 's' bit operand (always reg0 for this). + TmpInst.addOperand(MCOperand::CreateReg(0)); + OutStreamer.AddComment("eh_setjmp begin"); + OutStreamer.EmitInstruction(TmpInst); + } + { + MCInst TmpInst; + TmpInst.setOpcode(ARM::STR); + TmpInst.addOperand(MCOperand::CreateReg(ValReg)); + TmpInst.addOperand(MCOperand::CreateReg(SrcReg)); + TmpInst.addOperand(MCOperand::CreateReg(0)); + TmpInst.addOperand(MCOperand::CreateImm(4)); + // Predicate. + TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); + TmpInst.addOperand(MCOperand::CreateReg(0)); + OutStreamer.EmitInstruction(TmpInst); + } + { + MCInst TmpInst; + TmpInst.setOpcode(ARM::MOVi); + TmpInst.addOperand(MCOperand::CreateReg(ARM::R0)); + TmpInst.addOperand(MCOperand::CreateImm(0)); + // Predicate. + TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); + TmpInst.addOperand(MCOperand::CreateReg(0)); + // 's' bit operand (always reg0 for this). + TmpInst.addOperand(MCOperand::CreateReg(0)); + OutStreamer.EmitInstruction(TmpInst); + } + { + MCInst TmpInst; + TmpInst.setOpcode(ARM::ADDri); + TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); + TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); + TmpInst.addOperand(MCOperand::CreateImm(0)); + // Predicate. + TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); + TmpInst.addOperand(MCOperand::CreateReg(0)); + // 's' bit operand (always reg0 for this). + TmpInst.addOperand(MCOperand::CreateReg(0)); + OutStreamer.EmitInstruction(TmpInst); + } + { + MCInst TmpInst; + TmpInst.setOpcode(ARM::MOVi); + TmpInst.addOperand(MCOperand::CreateReg(ARM::R0)); + TmpInst.addOperand(MCOperand::CreateImm(1)); + // Predicate. + TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); + TmpInst.addOperand(MCOperand::CreateReg(0)); + // 's' bit operand (always reg0 for this). + TmpInst.addOperand(MCOperand::CreateReg(0)); + OutStreamer.AddComment("eh_setjmp end"); + OutStreamer.EmitInstruction(TmpInst); + } + return; + } } MCInst TmpInst; |