Legalizer was missing code that expand fpow to a libcall.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56028 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 1155add..86ae408 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -6602,13 +6602,9 @@
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 @@
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 @@
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);
diff --git a/test/CodeGen/ARM/fpow.ll b/test/CodeGen/ARM/fpow.ll
new file mode 100644
index 0000000..02a895b
--- /dev/null
+++ b/test/CodeGen/ARM/fpow.ll
@@ -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