mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-26 23:29:22 +00:00
add support for PIC on linux x86-64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52139 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
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313f0e63f7
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@ -197,11 +197,16 @@ bool X86ATTAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
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return false;
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}
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static inline bool printGOT(TargetMachine &TM, const X86Subtarget* ST) {
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static inline bool shouldPrintGOT(TargetMachine &TM, const X86Subtarget* ST) {
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return ST->isPICStyleGOT() && TM.getRelocationModel() == Reloc::PIC_;
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}
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static inline bool printStub(TargetMachine &TM, const X86Subtarget* ST) {
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static inline bool shouldPrintPLT(TargetMachine &TM, const X86Subtarget* ST) {
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return ST->isTargetELF() && TM.getRelocationModel() == Reloc::PIC_ &&
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(ST->isPICStyleRIPRel() || ST->isPICStyleGOT());
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}
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static inline bool shouldPrintStub(TargetMachine &TM, const X86Subtarget* ST) {
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return ST->isPICStyleStub() && TM.getRelocationModel() != Reloc::Static;
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}
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@ -304,7 +309,7 @@ void X86ATTAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
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needCloseParen = true;
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}
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if (printStub(TM, Subtarget)) {
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if (shouldPrintStub(TM, Subtarget)) {
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// Link-once, declaration, or Weakly-linked global variables need
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// non-lazily-resolved stubs
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if (GV->isDeclaration() ||
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@ -333,11 +338,11 @@ void X86ATTAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
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}
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O << Name;
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if (isCallOp && isa<Function>(GV)) {
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if (printGOT(TM, Subtarget)) {
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// Assemble call via PLT for non-local symbols
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if (!(GV->hasHiddenVisibility() || GV->hasProtectedVisibility()) ||
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GV->isDeclaration())
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if (isCallOp) {
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if (shouldPrintPLT(TM, Subtarget)) {
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// Assemble call via PLT for externally visible symbols
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if (!GV->hasHiddenVisibility() && !GV->hasProtectedVisibility() &&
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!GV->hasInternalLinkage())
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O << "@PLT";
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}
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if (Subtarget->isTargetCygMing() && GV->isDeclaration())
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@ -364,7 +369,7 @@ void X86ATTAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
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else
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O << "@NTPOFF"; // local exec TLS model
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} else if (isMemOp) {
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if (printGOT(TM, Subtarget)) {
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if (shouldPrintGOT(TM, Subtarget)) {
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if (Subtarget->GVRequiresExtraLoad(GV, TM, false))
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O << "@GOT";
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else
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@ -396,7 +401,7 @@ void X86ATTAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
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bool needCloseParen = false;
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std::string Name(TAI->getGlobalPrefix());
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Name += MO.getSymbolName();
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if (isCallOp && printStub(TM, Subtarget)) {
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if (isCallOp && shouldPrintStub(TM, Subtarget)) {
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FnStubs.insert(Name);
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printSuffixedName(Name, "$stub");
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return;
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@ -412,7 +417,7 @@ void X86ATTAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
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O << Name;
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if (printGOT(TM, Subtarget)) {
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if (shouldPrintPLT(TM, Subtarget)) {
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std::string GOTName(TAI->getGlobalPrefix());
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GOTName+="_GLOBAL_OFFSET_TABLE_";
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if (Name == GOTName)
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@ -646,4 +651,3 @@ void X86ATTAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
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// Include the auto-generated portion of the assembly writer.
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#include "X86GenAsmWriter.inc"
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11
test/CodeGen/X86/x86-64-pic-1.ll
Normal file
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test/CodeGen/X86/x86-64-pic-1.ll
Normal file
@ -0,0 +1,11 @@
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; RUN: llvm-as < %s | \
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; RUN: llc -mtriple=x86_64-pc-linux -relocation-model=pic -o %t1 -f
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; RUN: grep {call f@PLT} %t1
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define void @g() {
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entry:
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call void @f( )
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ret void
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}
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declare void @f()
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13
test/CodeGen/X86/x86-64-pic-10.ll
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test/CodeGen/X86/x86-64-pic-10.ll
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@ -0,0 +1,13 @@
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; RUN: llvm-as < %s | \
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; RUN: llc -mtriple=x86_64-pc-linux -relocation-model=pic -o %t1 -f
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; RUN: grep {call g@PLT} %t1
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@g = alias weak i32 ()* @f
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define void @g() {
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entry:
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%tmp31 = call i32 @g()
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ret void
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}
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declare extern_weak i32 @f()
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test/CodeGen/X86/x86-64-pic-11.ll
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test/CodeGen/X86/x86-64-pic-11.ll
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@ -0,0 +1,9 @@
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; RUN: llvm-as < %s | \
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; RUN: llc -mtriple=x86_64-pc-linux -relocation-model=pic -o %t1 -f
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; RUN: grep {call __fixunsxfti@PLT} %t1
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define i128 @f(x86_fp80 %a) {
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entry:
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%tmp78 = fptoui x86_fp80 %a to i128
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ret i128 %tmp78
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}
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test/CodeGen/X86/x86-64-pic-2.ll
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12
test/CodeGen/X86/x86-64-pic-2.ll
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@ -0,0 +1,12 @@
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; RUN: llvm-as < %s | \
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; RUN: llc -mtriple=x86_64-pc-linux -relocation-model=pic -o %t1 -f
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; RUN: grep {call f} %t1
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; RUN: not grep {call f@PLT} %t1
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define void @g() {
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entry:
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call void @f( )
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ret void
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}
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declare hidden void @f()
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test/CodeGen/X86/x86-64-pic-3.ll
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15
test/CodeGen/X86/x86-64-pic-3.ll
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@ -0,0 +1,15 @@
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; RUN: llvm-as < %s | \
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; RUN: llc -mtriple=x86_64-pc-linux -relocation-model=pic -o %t1 -f
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; RUN: grep {call f} %t1
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; RUN: not grep {call f@PLT} %t1
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define void @g() {
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entry:
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call void @f( )
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ret void
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}
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define internal void @f() {
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entry:
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ret void
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}
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test/CodeGen/X86/x86-64-pic-4.ll
Normal file
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test/CodeGen/X86/x86-64-pic-4.ll
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@ -0,0 +1,11 @@
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; RUN: llvm-as < %s | \
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; RUN: llc -mtriple=x86_64-pc-linux -relocation-model=pic -o %t1 -f
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; RUN: grep {movq a@GOTPCREL(%rip),} %t1
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@a = global i32 0
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define i32 @get_a() {
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entry:
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%tmp1 = load i32* @a, align 4
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ret i32 %tmp1
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}
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test/CodeGen/X86/x86-64-pic-5.ll
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12
test/CodeGen/X86/x86-64-pic-5.ll
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@ -0,0 +1,12 @@
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; RUN: llvm-as < %s | \
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; RUN: llc -mtriple=x86_64-pc-linux -relocation-model=pic -o %t1 -f
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; RUN: grep {movl a(%rip),} %t1
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; RUN: not grep GOTPCREL %t1
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@a = hidden global i32 0
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define i32 @get_a() {
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entry:
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%tmp1 = load i32* @a, align 4
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ret i32 %tmp1
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}
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test/CodeGen/X86/x86-64-pic-6.ll
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test/CodeGen/X86/x86-64-pic-6.ll
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@ -0,0 +1,12 @@
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; RUN: llvm-as < %s | \
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; RUN: llc -mtriple=x86_64-pc-linux -relocation-model=pic -o %t1 -f
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; RUN: grep {movl a(%rip),} %t1
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; RUN: not grep GOTPCREL %t1
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@a = internal global i32 0
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define i32 @get_a() {
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entry:
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%tmp1 = load i32* @a, align 4
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ret i32 %tmp1
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}
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test/CodeGen/X86/x86-64-pic-7.ll
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10
test/CodeGen/X86/x86-64-pic-7.ll
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@ -0,0 +1,10 @@
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; RUN: llvm-as < %s | \
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; RUN: llc -mtriple=x86_64-pc-linux -relocation-model=pic -o %t1 -f
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; RUN: grep {movq f@GOTPCREL(%rip),} %t1
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define void ()* @g() {
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entry:
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ret void ()* @f
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}
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declare void @f()
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test/CodeGen/X86/x86-64-pic-8.ll
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test/CodeGen/X86/x86-64-pic-8.ll
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@ -0,0 +1,11 @@
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; RUN: llvm-as < %s | \
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; RUN: llc -mtriple=x86_64-pc-linux -relocation-model=pic -o %t1 -f
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; RUN: grep {leaq f(%rip),} %t1
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; RUN: not grep GOTPCREL %t1
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define void ()* @g() {
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entry:
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ret void ()* @f
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}
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declare hidden void @f()
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test/CodeGen/X86/x86-64-pic-9.ll
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test/CodeGen/X86/x86-64-pic-9.ll
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@ -0,0 +1,14 @@
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; RUN: llvm-as < %s | \
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; RUN: llc -mtriple=x86_64-pc-linux -relocation-model=pic -o %t1 -f
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; RUN: grep {leaq f(%rip),} %t1
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; RUN: not grep GOTPCREL %t1
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define void ()* @g() {
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entry:
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ret void ()* @f
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}
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define internal void @f() {
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entry:
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ret void
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}
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