diff options
| author | Venkatraman Govindaraju <venkatra@cs.wisc.edu> | 2011-12-03 21:24:48 +0000 |
|---|---|---|
| committer | Venkatraman Govindaraju <venkatra@cs.wisc.edu> | 2011-12-03 21:24:48 +0000 |
| commit | 6dae604f500124b91a3aad255b467a84c43ede6b (patch) | |
| tree | 8bbcf7514da15eed86a4ae247f5db6203f966bc9 | |
| parent | 9b0cd149aa98763622abedda0a2573c772b2e9c0 (diff) | |
| download | bcm5719-llvm-6dae604f500124b91a3aad255b467a84c43ede6b.tar.gz bcm5719-llvm-6dae604f500124b91a3aad255b467a84c43ede6b.zip | |
Sparc CodeGen: Fix AnalyzeBranch for PR 10282. Removing addSuccessor() since
AnalyzeBranch doesn't change the successor, just the order.
llvm-svn: 145779
| -rw-r--r-- | llvm/lib/Target/Sparc/SparcInstrInfo.cpp | 2 | ||||
| -rw-r--r-- | llvm/test/CodeGen/SPARC/2011-12-03-TailDuplication.ll | 25 |
2 files changed, 26 insertions, 1 deletions
diff --git a/llvm/lib/Target/Sparc/SparcInstrInfo.cpp b/llvm/lib/Target/Sparc/SparcInstrInfo.cpp index 7a6bf50fa7d..1c48c047397 100644 --- a/llvm/lib/Target/Sparc/SparcInstrInfo.cpp +++ b/llvm/lib/Target/Sparc/SparcInstrInfo.cpp @@ -195,7 +195,7 @@ bool SparcInstrInfo::AnalyzeBranch(MachineBasicBlock &MBB, .addMBB(UnCondBrIter->getOperand(0).getMBB()).addImm(BranchCode); BuildMI(MBB, UnCondBrIter, MBB.findDebugLoc(I), get(SP::BA)) .addMBB(TargetBB); - MBB.addSuccessor(TargetBB); + OldInst->eraseFromParent(); UnCondBrIter->eraseFromParent(); diff --git a/llvm/test/CodeGen/SPARC/2011-12-03-TailDuplication.ll b/llvm/test/CodeGen/SPARC/2011-12-03-TailDuplication.ll new file mode 100644 index 00000000000..aa7de1618eb --- /dev/null +++ b/llvm/test/CodeGen/SPARC/2011-12-03-TailDuplication.ll @@ -0,0 +1,25 @@ +; RUN: llc -march=sparc <%s + +define void @foo(i32 %a) nounwind { +entry: + br i1 undef, label %return, label %else.0 + +else.0: + br i1 undef, label %if.end.0, label %return + +if.end.0: + br i1 undef, label %if.then.1, label %else.1 + +else.1: + %0 = bitcast i8* undef to i8** + br label %else.1.2 + +if.then.1: + br i1 undef, label %return, label %return + +else.1.2: + br i1 undef, label %return, label %return + +return: + ret void +} |
