From 71624cc7861c5ceaa72786aef2cd290bbb7fa33c Mon Sep 17 00:00:00 2001 From: Anton Korobeynikov Date: Sat, 29 Aug 2009 00:08:18 +0000 Subject: [PATCH] Do not assert on too wide splats we don't support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80409 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/ARM/ARMISelLowering.cpp | 10 +++++---- test/CodeGen/ARM/2009-08-29-TooLongSplat.ll | 23 +++++++++++++++++++++ 2 files changed, 29 insertions(+), 4 deletions(-) create mode 100644 test/CodeGen/ARM/2009-08-29-TooLongSplat.ll diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 8f27a3e7cfa..12d7b2ee212 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -2468,10 +2468,12 @@ static SDValue LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) { unsigned SplatBitSize; bool HasAnyUndefs; if (BVN->isConstantSplat(SplatBits, SplatUndef, SplatBitSize, HasAnyUndefs)) { - SDValue Val = isVMOVSplat(SplatBits.getZExtValue(), - SplatUndef.getZExtValue(), SplatBitSize, DAG); - if (Val.getNode()) - return BuildSplat(Val, VT, DAG, dl); + if (SplatBitSize <= 64) { + SDValue Val = isVMOVSplat(SplatBits.getZExtValue(), + SplatUndef.getZExtValue(), SplatBitSize, DAG); + if (Val.getNode()) + return BuildSplat(Val, VT, DAG, dl); + } } // If there are only 2 elements in a 128-bit vector, insert them into an diff --git a/test/CodeGen/ARM/2009-08-29-TooLongSplat.ll b/test/CodeGen/ARM/2009-08-29-TooLongSplat.ll new file mode 100644 index 00000000000..3b1413bee38 --- /dev/null +++ b/test/CodeGen/ARM/2009-08-29-TooLongSplat.ll @@ -0,0 +1,23 @@ +; RUN: llvm-as < %s | llc -mattr=+neon +target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:32" +target triple = "thumbv7-elf" + +define arm_apcscc void @aaa() nounwind { +entry: + %0 = fmul <4 x float> undef, ; <<4 x float>> [#uses=1] + %tmp31 = extractelement <4 x float> %0, i32 0 ; [#uses=1] + %1 = fpext float %tmp31 to double ; [#uses=1] + %2 = fsub double 1.000000e+00, %1 ; [#uses=1] + %3 = fdiv double %2, 1.000000e+00 ; [#uses=1] + %4 = tail call double @fabs(double %3) nounwind readnone ; [#uses=1] + %5 = fcmp ogt double %4, 1.000000e-05 ; [#uses=1] + br i1 %5, label %bb, label %bb7 + +bb: ; preds = %entry + unreachable + +bb7: ; preds = %entry + unreachable +} + +declare double @fabs(double) -- 2.34.1