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Avoid a load for local functions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271437 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2016-06-01 21:57:11 +00:00
parent 7cff23cad5
commit 2f6da59b68
2 changed files with 17 additions and 2 deletions
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9
lib/Target/ARM/ARMISelLowering.cpp
View File

@ -1844,8 +1844,13 @@ ARMTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
const GlobalValue *GV = G->getGlobal();
isDirect = true;
bool isDef = GV->isStrongDefinitionForLinker();
bool isStub = (!isDef && Subtarget->isTargetMachO()) &&
getTargetMachine().getRelocationModel() != Reloc::Static;
const TargetMachine &TM = getTargetMachine();
Reloc::Model RM = TM.getRelocationModel();
const Triple &TargetTriple = TM.getTargetTriple();
bool isStub =
!shouldAssumeDSOLocal(RM, TargetTriple, *GV->getParent(), GV) &&
Subtarget->isTargetMachO();
isARMFunc = !Subtarget->isThumb() || (isStub && !Subtarget->isMClass());
// ARM call to a local ARM function is predicable.
isLocalARMFunc = !Subtarget->isThumb() && (isDef || !ARMInterworking);

10
test/CodeGen/ARM/thumb-stub.ll Normal file
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@ -0,0 +1,10 @@
; RUN: llc -relocation-model=pic -mtriple=thumb-apple-darwin < %s | FileCheck %s
declare hidden void @f()
; CHECK: bl _f
define void @g() {
call void @f()
ret void
}