diff options
Diffstat (limited to 'llvm/lib/Target/AMDGPU/SIISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIISelLowering.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp index 2e76225bbc54..f58fde421f77 100644 --- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp +++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp @@ -16894,6 +16894,11 @@ SITargetLowering::getRegForInlineAsmConstraint(const TargetRegisterInfo *TRI_, const TargetRegisterClass *RC = nullptr; if (Constraint.size() == 1) { + // Check if we cannot determine the bit size of the given value type. This + // can happen, for example, in this situation where we have an empty struct + // (size 0): `call void asm "", "v"({} poison)`- + if (VT == MVT::Other) + return TargetLowering::getRegForInlineAsmConstraint(TRI, Constraint, VT); const unsigned BitWidth = VT.getSizeInBits(); switch (Constraint[0]) { default: |