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https://github.com/RPCS3/llvm.git
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fb2a7f990d
Summary: This patch adds IsVariadicFunction bit to summary in order to not import variadic functions. Inliner doesn't inline variadic functions because it is hard to reason about it. This one small fix improves Importer by about 16% (going from 86% to 100% of imported functions that are inlined anywhere) on some spec benchmarks like 'int' and others. Reviewers: eraman, mehdi_amini, tejohnson Subscribers: mehdi_amini, llvm-commits Differential Revision: https://reviews.llvm.org/D23339 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278432 91177308-0d34-0410-b5e6-96231b3b80d8
155 lines
3.6 KiB
LLVM
155 lines
3.6 KiB
LLVM
@globalvar = global i32 1, align 4
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@staticvar = internal global i32 1, align 4
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@staticconstvar = internal unnamed_addr constant [2 x i32] [i32 10, i32 20], align 4
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@commonvar = common global i32 0, align 4
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@P = internal global void ()* null, align 8
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@weakalias = weak alias void (...), bitcast (void ()* @globalfunc1 to void (...)*)
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@analias = alias void (...), bitcast (void ()* @globalfunc2 to void (...)*)
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@linkoncealias = alias void (...), bitcast (void ()* @linkoncefunc to void (...)*)
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define void @globalfunc1() #0 {
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entry:
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call void @funcwithpersonality()
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call void (...) @variadic()
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ret void
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}
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define void @globalfunc2() #0 {
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entry:
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ret void
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}
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define linkonce_odr void @linkoncefunc() #0 {
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entry:
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ret void
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}
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define i32 @referencestatics(i32 %i) #0 {
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entry:
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%i.addr = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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%call = call i32 @staticfunc()
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%0 = load i32, i32* @staticvar, align 4
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%add = add nsw i32 %call, %0
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%1 = load i32, i32* %i.addr, align 4
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%idxprom = sext i32 %1 to i64
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%arrayidx = getelementptr inbounds [2 x i32], [2 x i32]* @staticconstvar, i64 0, i64 %idxprom
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%2 = load i32, i32* %arrayidx, align 4
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%add1 = add nsw i32 %add, %2
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ret i32 %add1
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}
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define i32 @referenceglobals(i32 %i) #0 {
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entry:
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%i.addr = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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call void @globalfunc1()
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%0 = load i32, i32* @globalvar, align 4
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ret i32 %0
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}
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define i32 @referencecommon(i32 %i) #0 {
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entry:
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%i.addr = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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%0 = load i32, i32* @commonvar, align 4
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ret i32 %0
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}
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define void @setfuncptr() #0 {
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entry:
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store void ()* @staticfunc2, void ()** @P, align 8
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ret void
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}
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define void @callfuncptr() #0 {
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entry:
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%0 = load void ()*, void ()** @P, align 8
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call void %0()
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ret void
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}
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@weakvar = weak global i32 1, align 4
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define weak void @weakfunc() #0 {
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entry:
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ret void
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}
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define linkonce void @linkoncefunc2() #0 {
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entry:
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ret void
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}
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define internal i32 @staticfunc() #0 {
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entry:
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ret i32 1
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}
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declare i32 @__gxx_personality_v0(...)
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; Add enough instructions to prevent import with inst limit of 5
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define internal void @funcwithpersonality() #2 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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ret void
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}
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define internal void @staticfunc2() #0 {
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entry:
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ret void
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}
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define void @referencelargelinkonce() #0 {
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entry:
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call void @linkonceodr()
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ret void
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}
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; A large enough linkonce_odr function that should never be imported
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define linkonce_odr void @linkonceodr() #0 {
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entry:
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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call void @globalfunc2()
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ret void
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}
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; Variadic function should not be imported because inliner doesn't handle it.
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define void @variadic(...) {
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ret void
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}
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