Index: llvm/lib/Target/ARM/MVEVPTBlockPass.cpp =================================================================== --- llvm/lib/Target/ARM/MVEVPTBlockPass.cpp +++ llvm/lib/Target/ARM/MVEVPTBlockPass.cpp @@ -107,6 +107,12 @@ NumInstrsSteppedOver = 0; while (Iter != EndIter) { + if (Iter->isDebugInstr()) { + // Skip debug instructions + ++Iter; + continue; + } + NextPred = getVPTInstrPredicate(*Iter, PredReg); assert(NextPred != ARMVCC::Else && "VPT block pass does not expect Else preds"); @@ -170,6 +176,8 @@ LLVM_DEBUG(for (MachineBasicBlock::instr_iterator AddedInstIter = std::next(BlockBeg); AddedInstIter != Iter; ++AddedInstIter) { + if (AddedInstIter->isDebugInstr()) + continue; dbgs() << " adding: "; AddedInstIter->dump(); }); @@ -197,7 +205,7 @@ if (!IsVPRDefinedOrKilledByBlock(Iter, VPNOTBlockEndIter)) break; - LLVM_DEBUG(dbgs() << " removing VPNOT: "; Iter->dump();); + LLVM_DEBUG(dbgs() << " removing VPNOT: "; Iter->dump()); // Record the new size of the block BlockSize += ElseInstCnt; @@ -211,6 +219,9 @@ // Note that we are using "Iter" to iterate over the block so we can update // it at the same time. for (; Iter != VPNOTBlockEndIter; ++Iter) { + if (Iter->isDebugInstr()) + continue; + // Find the register in which the predicate is int OpIdx = findFirstVPTPredOperandIdx(*Iter); assert(OpIdx != -1); Index: llvm/test/CodeGen/Thumb2/mve-vpt-block-debug.mir =================================================================== --- llvm/test/CodeGen/Thumb2/mve-vpt-block-debug.mir +++ llvm/test/CodeGen/Thumb2/mve-vpt-block-debug.mir @@ -80,18 +80,14 @@ ; CHECK: DBG_VALUE $q2, $noreg, !19, !DIExpression(), debug-location !21 ; CHECK: DBG_VALUE $q2, $noreg, !19, !DIExpression(), debug-location !21 ; CHECK: DBG_VALUE $noreg, $noreg, !20, !DIExpression(), debug-location !21 - ; CHECK: BUNDLE implicit-def $vpr, implicit-def $q2, implicit-def $d4, implicit-def $s8, implicit-def $s9, implicit-def $d5, implicit-def $s10, implicit-def $s11, implicit $q1, implicit $q0, implicit killed $q2, debug-location !23 { - ; CHECK: MVE_VPTv4s32 8, renamable $q1, renamable $q0, 10, implicit-def $vpr, debug-location !23 + ; CHECK: BUNDLE implicit-def dead $vpr, implicit-def $q2, implicit-def $d4, implicit-def $s8, implicit-def $s9, implicit-def $d5, implicit-def $s10, implicit-def $s11, implicit killed $q1, implicit killed $q0, implicit killed $q2, debug-location !23 { + ; CHECK: MVE_VPTv4s32 12, renamable $q1, renamable $q0, 10, implicit-def $vpr, debug-location !23 ; CHECK: renamable $q2 = MVE_VADDi32 renamable $q0, renamable $q1, 1, internal renamable $vpr, killed renamable $q2, debug-location !23 + ; CHECK: DBG_VALUE $noreg, $noreg, !20, !DIExpression(), debug-location !21 + ; CHECK: DBG_VALUE internal $q2, $noreg, !19, !DIExpression(), debug-location !21 + ; CHECK: renamable $q2 = MVE_VADDi32 killed renamable $q0, killed renamable $q1, 2, internal killed renamable $vpr, internal killed renamable $q2, debug-location !25 + ; CHECK: DBG_VALUE internal $q2, $noreg, !19, !DIExpression(), debug-location !21 ; CHECK: } - ; CHECK: DBG_VALUE $noreg, $noreg, !20, !DIExpression(), debug-location !21 - ; CHECK: DBG_VALUE $q2, $noreg, !19, !DIExpression(), debug-location !21 - ; CHECK: renamable $vpr = MVE_VPNOT killed renamable $vpr, 0, $noreg, debug-location !24 - ; CHECK: BUNDLE implicit-def $q2, implicit-def $d4, implicit-def $s8, implicit-def $s9, implicit-def $d5, implicit-def $s10, implicit-def $s11, implicit killed $vpr, implicit killed $q0, implicit killed $q1, implicit killed $q2, debug-location !25 { - ; CHECK: MVE_VPST 8, implicit $vpr, debug-location !25 - ; CHECK: renamable $q2 = MVE_VADDi32 killed renamable $q0, killed renamable $q1, 1, killed renamable $vpr, killed renamable $q2, debug-location !25 - ; CHECK: } - ; CHECK: DBG_VALUE $q2, $noreg, !19, !DIExpression(), debug-location !21 ; CHECK: $q0 = MVE_VORR killed $q2, killed $q2, 0, $noreg, undef $q0, debug-location !26 ; CHECK: tBX_RET 14 /* CC::al */, $noreg, implicit $q0, debug-location !26 DBG_VALUE $q0, $noreg, !17, !DIExpression(), debug-location !21