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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-12-09 23:54:42 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-12-09 23:54:42 +0000 |
| commit | effab8fa2413e96b6a2ce2bbeefe35fe478ee028 (patch) | |
| tree | f6564d99241a92a034944563d834e18508b19c6e | |
| parent | 21d7fb814adcedc7b2f156e003d2083ad1d8ac6a (diff) | |
Splats can contain undef's; make sure to handle them correctly. PR11526.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146299 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 3 | ||||
| -rw-r--r-- | test/CodeGen/ARM/vmov.ll | 10 |
2 files changed, 11 insertions, 2 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index f09a1c7e4f..2045073fb6 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -3984,8 +3984,7 @@ SDValue ARMTargetLowering::LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG, // Use vmov.f32 to materialize other v2f32 and v4f32 splats. if (VT == MVT::v2f32 || VT == MVT::v4f32) { - ConstantFPSDNode *C = cast<ConstantFPSDNode>(Op.getOperand(0)); - int ImmVal = ARM_AM::getFP32Imm(C->getValueAPF()); + int ImmVal = ARM_AM::getFP32Imm(SplatBits); if (ImmVal != -1) { SDValue Val = DAG.getTargetConstant(ImmVal, MVT::i32); return DAG.getNode(ARMISD::VMOVFPIMM, dl, VT, Val); diff --git a/test/CodeGen/ARM/vmov.ll b/test/CodeGen/ARM/vmov.ll index 0396a41a35..be95657915 100644 --- a/test/CodeGen/ARM/vmov.ll +++ b/test/CodeGen/ARM/vmov.ll @@ -371,3 +371,13 @@ entry: store <4 x float> <float 3.100000e+01, float 3.100000e+01, float 3.100000e+01, float 3.100000e+01>, <4 x float>* %p, align 4 ret void } + +define void @v_mov_v4f32_undef(<4 x float> * nocapture %p) nounwind { +entry: +;CHECK: v_mov_v4f32_undef: +;CHECK: vmov.f32 q{{.*}}, #1.000000e+00 + %a = load <4 x float> *%p + %b = fadd <4 x float> %a, <float undef, float 1.0, float 1.0, float 1.0> + store <4 x float> %b, <4 x float> *%p + ret void +} |