diff options
Diffstat (limited to 'llvm/lib/CodeGen/GlobalISel/Utils.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/GlobalISel/Utils.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/GlobalISel/Utils.cpp b/llvm/lib/CodeGen/GlobalISel/Utils.cpp index 26fd12f..23ad68b 100644 --- a/llvm/lib/CodeGen/GlobalISel/Utils.cpp +++ b/llvm/lib/CodeGen/GlobalISel/Utils.cpp @@ -660,8 +660,11 @@ std::optional<APInt> llvm::ConstantFoldBinOp(unsigned Opcode, default: break; case TargetOpcode::G_ADD: - case TargetOpcode::G_PTR_ADD: return C1 + C2; + case TargetOpcode::G_PTR_ADD: + // Types can be of different width here. + // Result needs to be the same width as C1, so trunc or sext C2. + return C1 + C2.sextOrTrunc(C1.getBitWidth()); case TargetOpcode::G_AND: return C1 & C2; case TargetOpcode::G_ASHR: |