diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIFoldOperands.cpp | 3 | ||||
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/clamp-omod-special-case.mir | 20 |
2 files changed, 22 insertions, 1 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp b/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp index dfac068d1f6..e10f1ed3762 100644 --- a/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp +++ b/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp @@ -730,7 +730,8 @@ const MachineOperand *SIFoldOperands::isClamp(const MachineInstr &MI) const { // Make sure sources are identical. const MachineOperand *Src0 = TII->getNamedOperand(MI, AMDGPU::OpName::src0); const MachineOperand *Src1 = TII->getNamedOperand(MI, AMDGPU::OpName::src1); - if (!Src0->isReg() || Src0->getSubReg() != Src1->getSubReg() || + if (!Src0->isReg() || !Src1->isReg() || + Src0->getSubReg() != Src1->getSubReg() || Src0->getSubReg() != AMDGPU::NoSubRegister) return nullptr; diff --git a/llvm/test/CodeGen/AMDGPU/clamp-omod-special-case.mir b/llvm/test/CodeGen/AMDGPU/clamp-omod-special-case.mir index fbfd0fbf930..6ecf75c1ace 100644 --- a/llvm/test/CodeGen/AMDGPU/clamp-omod-special-case.mir +++ b/llvm/test/CodeGen/AMDGPU/clamp-omod-special-case.mir @@ -24,6 +24,10 @@ ret void } + define amdgpu_ps void @v_max_reg_imm_f32() #0 { + ret void + } + attributes #0 = { nounwind "no-signed-zeros-fp-math"="false" } ... @@ -422,3 +426,19 @@ body: | S_ENDPGM ... +--- + +# Pass used to crash with immediate second operand of max +name: v_max_reg_imm_f32 +tracksRegLiveness: true +registers: + - { id: 0, class: vgpr_32 } + - { id: 1, class: vgpr_32 } +body: | + bb.0 (%ir-block.0): + liveins: %vgpr0 + + %0 = COPY %vgpr0 + %1 = V_MAX_F32_e64 0, killed %0, 0, 1056964608, 1, 0, implicit %exec + +... |
