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| author | Luo Xionghu <xionghu.luo@intel.com> | 2014-12-02 15:58:55 +0800 |
|---|---|---|
| committer | Zhigang Gong <zhigang.gong@intel.com> | 2014-12-02 17:06:57 +0800 |
| commit | b85904ed0bce071307568a01a2aff76dd232d220 (patch) | |
| tree | 496b5b4456d22503508a16545c7b13311ae12102 | |
| parent | 5e70dd0d9f6f4d0659ba9403e27f2403669327a2 (diff) | |
fix dnetc overflow issue.
the overflow type should be unsigned for uadd_with_overflow.
this patch fixed the "dnetc -test rc5-72 0" 15 fails out of
32 when disabled bswap.
Signed-off-by: Luo Xionghu <xionghu.luo@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@intel.com>
| -rw-r--r-- | backend/src/llvm/llvm_gen_backend.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/backend/src/llvm/llvm_gen_backend.cpp b/backend/src/llvm/llvm_gen_backend.cpp index 3d74a0aa..7f926583 100644 --- a/backend/src/llvm/llvm_gen_backend.cpp +++ b/backend/src/llvm/llvm_gen_backend.cpp @@ -2980,7 +2980,8 @@ namespace gbe ctx.ADD(dst0Type, dst0, src0, src1); ir::Register overflow = this->getRegister(&I, 1); - ctx.LT(dst0Type, overflow, dst0, src1); + const ir::Type unsignedType = makeTypeUnsigned(dst0Type); + ctx.LT(unsignedType, overflow, dst0, src1); } break; case Intrinsic::usub_with_overflow: |