diff options
Diffstat (limited to 'lib/Target/X86/X86FastISel.cpp')
-rw-r--r-- | lib/Target/X86/X86FastISel.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index 2c92961452..77e67a1740 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/lib/Target/X86/X86FastISel.cpp @@ -1084,7 +1084,14 @@ bool X86FastISel::X86SelectBranch(const Instruction *I) { if (OpReg == 0) return false; BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, TII.get(TestOpc)) .addReg(OpReg).addImm(1); - BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, TII.get(X86::JNE_4)) + + unsigned JmpOpc = X86::JNE_4; + if (FuncInfo.MBB->isLayoutSuccessor(TrueMBB)) { + std::swap(TrueMBB, FalseMBB); + JmpOpc = X86::JE_4; + } + + BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, TII.get(JmpOpc)) .addMBB(TrueMBB); FastEmitBranch(FalseMBB, DL); FuncInfo.MBB->addSuccessor(TrueMBB); |