diff --git a/lib/Target/CellSPU/SPUInstrInfo.cpp b/lib/Target/CellSPU/SPUInstrInfo.cpp index 066c5b06140..4c53c988d33 100644 --- a/lib/Target/CellSPU/SPUInstrInfo.cpp +++ b/lib/Target/CellSPU/SPUInstrInfo.cpp @@ -467,6 +467,9 @@ SPUInstrInfo::AnalyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB, // If there is only one terminator instruction, process it. if (I == MBB.begin() || !isUnpredicatedTerminator(--I)) { if (isUncondBranch(LastInst)) { + // Check for jump tables + if (!LastInst->getOperand(0).isMBB()) + return true; TBB = LastInst->getOperand(0).getMBB(); return false; } else if (isCondBranch(LastInst)) { diff --git a/test/CodeGen/CellSPU/jumptable.ll b/test/CodeGen/CellSPU/jumptable.ll new file mode 100644 index 00000000000..d7d1ef49f97 --- /dev/null +++ b/test/CodeGen/CellSPU/jumptable.ll @@ -0,0 +1,21 @@ +;RUN: llc --march=cellspu %s -o - | FileCheck %s +; This is to check that emitting jumptables doesn't crash llc +define i32 @test(i32 %param) { +entry: +;CHECK: ai $4, $3, -1 +;CHECK: clgti $5, $4, 3 +;CHECK: brnz $5,.LBB0_2 + switch i32 %param, label %bb1 [ + i32 1, label %bb3 + i32 2, label %bb2 + i32 3, label %bb3 + i32 4, label %bb1 + ] + +bb1: + ret i32 1 +bb2: + ret i32 2 +bb3: + ret i32 3 +}