diff options
| -rw-r--r-- | lib/Target/PowerPC/PPCISelLowering.cpp | 9 | ||||
| -rw-r--r-- | test/CodeGen/PowerPC/pr16556.ll | 20 |
2 files changed, 29 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp index 0f79031..9c2856f 100644 --- a/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/lib/Target/PowerPC/PPCISelLowering.cpp @@ -4685,6 +4685,15 @@ SDValue PPCTargetLowering::LowerFP_TO_INT(SDValue Op, SelectionDAG &DAG, SDLoc dl) const { assert(Op.getOperand(0).getValueType().isFloatingPoint()); SDValue Src = Op.getOperand(0); + + // If we have a long double here, it must be that we have an undef of + // that type. In this case return an undef of the target type. + if (Src.getValueType() == MVT::ppcf128) { + assert(Src.getOpcode() == ISD::UNDEF && "Unhandled ppcf128!"); + return DAG.getNode(ISD::UNDEF, dl, + Op.getValueType().getSimpleVT().SimpleTy); + } + if (Src.getValueType() == MVT::f32) Src = DAG.getNode(ISD::FP_EXTEND, dl, MVT::f64, Src); diff --git a/test/CodeGen/PowerPC/pr16556.ll b/test/CodeGen/PowerPC/pr16556.ll new file mode 100644 index 0000000..dc36f0b --- /dev/null +++ b/test/CodeGen/PowerPC/pr16556.ll @@ -0,0 +1,20 @@ +; RUN: llc < %s + +; This test formerly failed due to no handling for a ppc_fp128 undef. + +target datalayout = "E-p:32:32:32-S0-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:64:128-v64:64:64-v128:128:128-a0:0:64-n32" +target triple = "powerpc-unknown-linux-gnu" + +%core.time.TickDuration.37.125 = type { i64 } + +define weak_odr fastcc i64 @_D4core4time12TickDuration30__T2toVAyaa7_7365636f6e6473TlZ2toMxFNaNbNfZl(%core.time.TickDuration.37.125* %.this_arg) { +entry: + br i1 undef, label %noassert, label %assert + +assert: ; preds = %entry + unreachable + +noassert: ; preds = %entry + %tmp9 = fptosi ppc_fp128 undef to i64 + ret i64 %tmp9 +} |