unsigned char
X86Subtarget::classifyGlobalFunctionReference(const GlobalValue *GV,
const Module &M) const {
+ const Function *F = dyn_cast_or_null<Function>(GV);
+
+ // Do not use the PLT when explicitly told to do so for ELF 64-bit
+ // target.
+ if (isTargetELF() && is64Bit() && F &&
+ F->hasFnAttribute(Attribute::NonLazyBind) &&
+ GV->isDeclarationForLinker())
+ return X86II::MO_GOTPCREL;
+
if (TM.shouldAssumeDSOLocal(M, GV))
return X86II::MO_NO_FLAG;
return X86II::MO_DLLIMPORT;
}
- const Function *F = dyn_cast_or_null<Function>(GV);
-
if (isTargetELF()) {
if (is64Bit() && F && (CallingConv::X86_RegCall == F->getCallingConv()))
// According to psABI, PLT stub clobbers XMM8-XMM15.
--- /dev/null
+; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnu -relocation-model=pic \
+; RUN: | FileCheck -check-prefix=X64 %s
+; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnu \
+; RUN: | FileCheck -check-prefix=X64 %s
+
+define i32 @main() #0 {
+; X64: callq *_Z3foov@GOTPCREL(%rip)
+; X64: callq _Z3barv
+
+entry:
+ %retval = alloca i32, align 4
+ store i32 0, i32* %retval, align 4
+ %call1 = call i32 @_Z3foov()
+ %call2 = call i32 @_Z3barv()
+ ret i32 0
+}
+
+; Function Attrs: nonlazybind
+declare i32 @_Z3foov() #1
+
+declare i32 @_Z3barv() #2
+
+attributes #1 = { nonlazybind }