diff options
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 2 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/widen_compare-1.ll | 21 |
2 files changed, 22 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 99b457afe35..2daae135045 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -3403,7 +3403,7 @@ SDValue SelectionDAG::FoldConstantVectorArithmetic(unsigned Opcode, SDLoc DL, EVT LegalSVT = VT.getScalarType(); if (LegalSVT.isInteger()) { LegalSVT = TLI->getTypeToTransformTo(*getContext(), LegalSVT); - if (LegalSVT.bitsLT(SVT)) + if (LegalSVT.bitsLT(VT.getScalarType())) return SDValue(); } diff --git a/llvm/test/CodeGen/X86/widen_compare-1.ll b/llvm/test/CodeGen/X86/widen_compare-1.ll new file mode 100644 index 00000000000..8ea0db53a39 --- /dev/null +++ b/llvm/test/CodeGen/X86/widen_compare-1.ll @@ -0,0 +1,21 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=i686-unknown -mattr=+sse4.2 | FileCheck %s --check-prefix=X86 +; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+sse4.2 | FileCheck %s --check-prefix=X64 + +; compare v2i16 + +define <2 x i16> @compare_v2i64_to_v2i16(<2 x i16>* %src) nounwind { +; X86-LABEL: compare_v2i64_to_v2i16: +; X86: # BB#0: +; X86-NEXT: movaps {{.*#+}} xmm0 = [65535,0,65535,0] +; X86-NEXT: retl +; +; X64-LABEL: compare_v2i64_to_v2i16: +; X64: # BB#0: +; X64-NEXT: movaps {{.*#+}} xmm0 = [65535,65535] +; X64-NEXT: retq + %val = load <2 x i16>, <2 x i16>* %src, align 4 + %cmp = icmp uge <2 x i16> %val, %val + %sel = select <2 x i1> %cmp, <2 x i16> <i16 -1, i16 -1>, <2 x i16> zeroinitializer + ret <2 x i16> %sel +} |
