diff options
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIFoldOperands.cpp | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp b/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp index 4eac0316876..69ac367f7ab 100644 --- a/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp +++ b/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp @@ -513,18 +513,6 @@ void SIFoldOperands::foldOperand( if (UseOp.isReg() && OpToFold.isReg()) { if (UseOp.isImplicit() || UseOp.getSubReg() != AMDGPU::NoSubRegister) return; - - // Don't fold subregister extracts into tied operands, only if it is a full - // copy since a subregister use tied to a full register def doesn't really - // make sense. e.g. don't fold: - // - // %1 = COPY %0:sub1 - // %2<tied3> = V_MAC_{F16, F32} %3, %4, %1<tied0> - // - // into - // %2<tied3> = V_MAC_{F16, F32} %3, %4, %0:sub1<tied0> - if (UseOp.isTied() && OpToFold.getSubReg() != AMDGPU::NoSubRegister) - return; } // Special case for REG_SEQUENCE: We can't fold literals into |
