diff options
Diffstat (limited to 'llvm/lib/Target/AMDGPU/AMDGPURegBankLegalize.cpp')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/AMDGPURegBankLegalize.cpp | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPURegBankLegalize.cpp b/llvm/lib/Target/AMDGPU/AMDGPURegBankLegalize.cpp index e187959..907f830 100644 --- a/llvm/lib/Target/AMDGPU/AMDGPURegBankLegalize.cpp +++ b/llvm/lib/Target/AMDGPU/AMDGPURegBankLegalize.cpp @@ -24,6 +24,7 @@ #include "llvm/CodeGen/GlobalISel/CSEInfo.h" #include "llvm/CodeGen/GlobalISel/CSEMIRBuilder.h" #include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h" +#include "llvm/CodeGen/GlobalISel/MIPatternMatch.h" #include "llvm/CodeGen/GlobalISel/Utils.h" #include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/MachineUniformityAnalysis.h" @@ -34,9 +35,17 @@ using namespace llvm; using namespace AMDGPU; +using namespace llvm::MIPatternMatch; namespace { +// AMDGPU-specific pattern matchers +template <typename SrcTy> +inline UnaryOp_match<SrcTy, AMDGPU::G_AMDGPU_READANYLANE> +m_GAMDGPUReadAnyLane(const SrcTy &Src) { + return UnaryOp_match<SrcTy, AMDGPU::G_AMDGPU_READANYLANE>(Src); +} + class AMDGPURegBankLegalize : public MachineFunctionPass { public: static char ID; @@ -160,10 +169,18 @@ AMDGPURegBankLegalizeCombiner::tryMatchRALFromUnmerge(Register Src) { Register AMDGPURegBankLegalizeCombiner::getReadAnyLaneSrc(Register Src) { // Src = G_AMDGPU_READANYLANE RALSrc - auto [RAL, RALSrc] = tryMatch(Src, AMDGPU::G_AMDGPU_READANYLANE); - if (RAL) + Register RALSrc; + if (mi_match(Src, MRI, m_GAMDGPUReadAnyLane(m_Reg(RALSrc)))) return RALSrc; + // TruncSrc = G_AMDGPU_READANYLANE RALSrc + // AextSrc = G_TRUNC TruncSrc + // Src = G_ANYEXT AextSrc + if (mi_match(Src, MRI, + m_GAnyExt(m_GTrunc(m_GAMDGPUReadAnyLane(m_Reg(RALSrc)))))) { + return RALSrc; + } + // LoVgpr, HiVgpr = G_UNMERGE_VALUES UnmergeSrc // LoSgpr = G_AMDGPU_READANYLANE LoVgpr // HiSgpr = G_AMDGPU_READANYLANE HiVgpr |