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Add some additional functions to the list of helper functions for

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pic calls. These need to be there so we don't try and use helper
functions when we call those.

As part of this, make sure that we properly exclude helper functions in pic
mode when indirect calls are involved.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182343 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reed Kotler 2013-05-21 00:50:30 +00:00
parent 6f43379e23
commit bf00bf9ad2
2 changed files with 80 additions and 2 deletions
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15
lib/Target/Mips/Mips16ISelLowering.cpp
View File

@ -46,9 +46,13 @@ Mips16TargetLowering::Mips16TargetLowering(MipsTargetMachine &TM)
// Set up the register classes
addRegisterClass(MVT::i32, &Mips::CPU16RegsRegClass);
if (Subtarget->inMips16HardFloat())
if (Subtarget->inMips16HardFloat()) {
setMips16HardFloatLibCalls();
NoHelperNeeded.insert("__mips16_ret_sf");
NoHelperNeeded.insert("__mips16_ret_df");
NoHelperNeeded.insert("__mips16_ret_sc");
NoHelperNeeded.insert("__mips16_ret_dc");
}
setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Expand);
setOperationAction(ISD::ATOMIC_CMP_SWAP, MVT::i32, Expand);
setOperationAction(ISD::ATOMIC_SWAP, MVT::i32, Expand);
@ -383,6 +387,13 @@ getOpndList(SmallVectorImpl<SDValue> &Ops,
LookupHelper = false;
}
}
else if (GlobalAddressSDNode *G =
dyn_cast<GlobalAddressSDNode>(CLI.Callee)) {
if (NoHelperNeeded.find(G->getGlobal()->getName().data()) !=
NoHelperNeeded.end()) {
LookupHelper = false;
}
}
if (LookupHelper) Mips16HelperFunction =
getMips16HelperFunction(CLI.RetTy, CLI.Args, NeedMips16Helper);

67
test/CodeGen/Mips/hfptrcall.ll Normal file
View File

@ -0,0 +1,67 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=pic < %s | FileCheck %s -check-prefix=picel
@ptrsv = global float ()* @sv, align 4
@ptrdv = global double ()* @dv, align 4
@ptrscv = global { float, float } ()* @scv, align 4
@ptrdcv = global { double, double } ()* @dcv, align 4
@x = common global float 0.000000e+00, align 4
@.str = private unnamed_addr constant [4 x i8] c"%f\0A\00", align 1
@xd = common global double 0.000000e+00, align 8
@xy = common global { float, float } zeroinitializer, align 4
@.str1 = private unnamed_addr constant [10 x i8] c"%f + %fi\0A\00", align 1
@xyd = common global { double, double } zeroinitializer, align 8
; Function Attrs: nounwind
define float @sv() #0 {
entry:
ret float 1.000000e+01
}
; picel: .ent sv
; picel: lw ${{[0-9]+}}, %call16(__mips16_ret_sf)(${{[0-9]+}})
; picel: .end sv
; Function Attrs: nounwind
define double @dv() #0 {
entry:
ret double 1.500000e+01
}
; picel: .ent dv
; picel: lw ${{[0-9]+}}, %call16(__mips16_ret_df)(${{[0-9]+}})
; picel: .end dv
; Function Attrs: nounwind
define { float, float } @scv() #0 {
entry:
%retval = alloca { float, float }, align 4
%real = getelementptr inbounds { float, float }* %retval, i32 0, i32 0
%imag = getelementptr inbounds { float, float }* %retval, i32 0, i32 1
store float 5.000000e+00, float* %real
store float 9.900000e+01, float* %imag
%0 = load { float, float }* %retval
ret { float, float } %0
}
; picel: .ent scv
; picel: lw ${{[0-9]+}}, %call16(__mips16_ret_sc)(${{[0-9]+}})
; picel: .end scv
; Function Attrs: nounwind
define { double, double } @dcv() #0 {
entry:
%retval = alloca { double, double }, align 8
%real = getelementptr inbounds { double, double }* %retval, i32 0, i32 0
%imag = getelementptr inbounds { double, double }* %retval, i32 0, i32 1
store double 0x416BC8B0A0000000, double* %real
store double 0x41CDCCB763800000, double* %imag
%0 = load { double, double }* %retval
ret { double, double } %0
}
; picel: .ent dcv
; picel: lw ${{[0-9]+}}, %call16(__mips16_ret_dc)(${{[0-9]+}})
; picel: .end dcv
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="true" }