diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/IfConversion.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/IfConversion.cpp b/llvm/lib/CodeGen/IfConversion.cpp index 83317194b74..be30ad30016 100644 --- a/llvm/lib/CodeGen/IfConversion.cpp +++ b/llvm/lib/CodeGen/IfConversion.cpp @@ -1758,9 +1758,15 @@ bool IfConverter::IfConvertDiamondCommon( if (!BBI1->IsBrAnalyzable) verifySameBranchInstructions(&MBB1, &MBB2); #endif - BBI1->NonPredSize -= TII->removeBranch(*BBI1->BB); - // Remove duplicated instructions. + // Remove duplicated instructions from the tail of MBB1: any branch + // instructions, and the common instructions counted by NumDups2. DI1 = MBB1.end(); + while (DI1 != MBB1.begin()) { + MachineBasicBlock::iterator Prev = std::prev(DI1); + if (!Prev->isBranch() && !Prev->isDebugInstr()) + break; + DI1 = Prev; + } for (unsigned i = 0; i != NumDups2; ) { // NumDups2 only counted non-dbg_value instructions, so this won't // run off the head of the list. |
