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Legalizer was missing code that expand fpow to a libcall.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56028 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2008-09-09 23:02:14 +00:00
parent e10c814c52
commit 4b88702ac3
2 changed files with 22 additions and 10 deletions
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22
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
View File

@ -6602,13 +6602,9 @@ void SelectionDAGLegalize::ExpandOp(SDValue Op, SDValue &Lo, SDValue &Hi){
Lo = ExpandLibCall(LC, Node, true, Hi);
break;
}
case ISD::FPOWI:
Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::POWI_F32,
RTLIB::POWI_F64,
RTLIB::POWI_F80,
RTLIB::POWI_PPCF128),
Node, false, Hi);
break;
case ISD::FSQRT:
case ISD::FSIN:
case ISD::FCOS:
case ISD::FLOG:
case ISD::FLOG2:
case ISD::FLOG10:
@ -6619,9 +6615,7 @@ void SelectionDAGLegalize::ExpandOp(SDValue Op, SDValue &Lo, SDValue &Hi){
case ISD::FCEIL:
case ISD::FRINT:
case ISD::FNEARBYINT:
case ISD::FSQRT:
case ISD::FSIN:
case ISD::FCOS: {
case ISD::FPOW: {
RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL;
switch(Node->getOpcode()) {
case ISD::FSQRT:
@ -6676,6 +6670,14 @@ void SelectionDAGLegalize::ExpandOp(SDValue Op, SDValue &Lo, SDValue &Hi){
LC = GetFPLibCall(VT, RTLIB::NEARBYINT_F32, RTLIB::NEARBYINT_F64,
RTLIB::NEARBYINT_F80, RTLIB::NEARBYINT_PPCF128);
break;
case ISD::FPOW:
LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80,
RTLIB::POW_PPCF128);
break;
case ISD::FPOWI:
LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, RTLIB::POWI_F80,
RTLIB::POWI_PPCF128);
break;
default: assert(0 && "Unreachable!");
}
Lo = ExpandLibCall(LC, Node, false, Hi);

10
test/CodeGen/ARM/fpow.ll Normal file
View File

@ -0,0 +1,10 @@
; RUN: llvm-as < %s | llc -march=arm
; RUN: llvm-as < %s | llc -march=thumb
define double @t(double %x, double %y) nounwind notes(opt_size) {
entry:
%0 = tail call double @llvm.pow.f64( double %x, double %y ) ; <double> [#uses=1]
ret double %0
}
declare double @llvm.pow.f64(double, double) nounwind readonly