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[AMDGPU] Add GlobalOpt parameter to Always Inliner pass

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If set to false it does not remove global aliases. With this parameter
set to false it should be safe to run the pass before link.

Differential Revision: https://reviews.llvm.org/D31489

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299108 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Stanislav Mekhanoshin 2017-03-30 20:16:02 +00:00
parent 70eccef966
commit 38e381b5a3
4 changed files with 14 additions and 7 deletions
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2
lib/Target/AMDGPU/AMDGPU.h
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@ -98,7 +98,7 @@ extern char &AMDGPUPromoteAllocaID;
Pass *createAMDGPUStructurizeCFGPass();
FunctionPass *createAMDGPUISelDag(TargetMachine &TM,
CodeGenOpt::Level OptLevel);
ModulePass *createAMDGPUAlwaysInlinePass();
ModulePass *createAMDGPUAlwaysInlinePass(bool GlobalOpt = true);
ModulePass *createAMDGPUOpenCLImageTypeLoweringPass();
FunctionPass *createAMDGPUAnnotateUniformValues();

14
lib/Target/AMDGPU/AMDGPUAlwaysInlinePass.cpp
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@ -24,8 +24,10 @@ namespace {
class AMDGPUAlwaysInline : public ModulePass {
static char ID;
bool GlobalOpt;
public:
AMDGPUAlwaysInline() : ModulePass(ID) { }
AMDGPUAlwaysInline(bool GlobalOpt) : ModulePass(ID), GlobalOpt(GlobalOpt) { }
bool runOnModule(Module &M) override;
StringRef getPassName() const override { return "AMDGPU Always Inline Pass"; }
};
@ -45,8 +47,10 @@ bool AMDGPUAlwaysInline::runOnModule(Module &M) {
}
}
for (GlobalAlias* A : AliasesToRemove) {
A->eraseFromParent();
if (GlobalOpt) {
for (GlobalAlias* A : AliasesToRemove) {
A->eraseFromParent();
}
}
for (Function &F : M) {
@ -70,6 +74,6 @@ bool AMDGPUAlwaysInline::runOnModule(Module &M) {
return false;
}
ModulePass *llvm::createAMDGPUAlwaysInlinePass() {
return new AMDGPUAlwaysInline();
ModulePass *llvm::createAMDGPUAlwaysInlinePass(bool GlobalOpt) {
return new AMDGPUAlwaysInline(GlobalOpt);
}

2
lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
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@ -315,7 +315,7 @@ void AMDGPUTargetMachine::adjustPassManager(PassManagerBuilder &Builder) {
PM.add(createGlobalDCEPass());
}
if (EarlyInline)
PM.add(createAMDGPUAlwaysInlinePass());
PM.add(createAMDGPUAlwaysInlinePass(false));
});
Builder.addExtension(

3
test/CodeGen/AMDGPU/early-inline.ll
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@ -1,5 +1,8 @@
; RUN: opt -mtriple=amdgcn-- -O1 -S -inline-threshold=1 -amdgpu-early-inline-all %s | FileCheck %s
; CHECK: @c_alias
@c_alias = alias i32 (i32), i32 (i32)* @callee
define i32 @callee(i32 %x) {
entry:
%mul1 = mul i32 %x, %x