diff options
Diffstat (limited to 'lib/Target')
| -rw-r--r-- | lib/Target/R600/R600InstrInfo.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Target/R600/R600InstrInfo.cpp b/lib/Target/R600/R600InstrInfo.cpp index 7ef3d85..812675a 100644 --- a/lib/Target/R600/R600InstrInfo.cpp +++ b/lib/Target/R600/R600InstrInfo.cpp @@ -563,6 +563,7 @@ bool R600InstrInfo::fitsConstReadLimitations(const std::vector<MachineInstr *> &MIs) const { std::vector<unsigned> Consts; + SmallSet<int64_t, 4> Literals; for (unsigned i = 0, n = MIs.size(); i < n; i++) { MachineInstr *MI = MIs[i]; if (!isALUInstr(MI->getOpcode())) @@ -573,6 +574,10 @@ R600InstrInfo::fitsConstReadLimitations(const std::vector<MachineInstr *> &MIs) for (unsigned j = 0, e = Srcs.size(); j < e; j++) { std::pair<MachineOperand *, unsigned> Src = Srcs[j]; + if (Src.first->getReg() == AMDGPU::ALU_LITERAL_X) + Literals.insert(Src.second); + if (Literals.size() > 4) + return false; if (Src.first->getReg() == AMDGPU::ALU_CONST) Consts.push_back(Src.second); if (AMDGPU::R600_KC0RegClass.contains(Src.first->getReg()) || |