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[Coroutines] Move CoroEarly pass to before AlwaysInliner

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Presplit coroutines cannot be inlined. During AlwaysInliner we check if a function is a presplit coroutine, if so we skip inlining.
The presplit coroutine attributes are set in CoroEarly pass.
However in O0 pipeline, AlwaysInliner runs before CoroEarly, so the attribute isn't set yet and will still inline the coroutine.
This causes Clang to crash: https://bugs.llvm.org/show_bug.cgi?id=49920

Differential Revision: https://reviews.llvm.org/D100282
This commit is contained in:
Xun Li 2021-04-11 22:01:36 -07:00
parent 86db67416f
commit c42f8ec702
13 changed files with 12 additions and 13 deletions
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1
lib/Transforms/Coroutines/CoroEarly.cpp
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@ -179,7 +179,6 @@ bool Lowerer::lowerEarlyIntrinsics(Function &F) {
// with a coroutine attribute.
if (auto *CII = cast<CoroIdInst>(&I)) {
if (CII->getInfo().isPreSplit()) {
F.addFnAttr(CORO_PRESPLIT_ATTR, UNPREPARED_FOR_SPLIT);
setCannotDuplicate(CII);
CII->setCoroutineSelf();
CoroId = cast<CoroIdInst>(&I);

2
test/Transforms/Coroutines/coro-debug-O2.ll
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@ -9,7 +9,7 @@
; CHECK: ![[PROMISEVAR_RESUME]] = !DILocalVariable(name: "__promise"
%promise_type = type { i32, i32, double }
define void @f() !dbg !8 {
define void @f() "coroutine.presplit"="0" !dbg !8 {
entry:
%__promise = alloca %promise_type, align 8
%0 = bitcast %promise_type* %__promise to i8*

2
test/Transforms/Coroutines/coro-debug-frame-variable.ll
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@ -63,7 +63,7 @@
; CHECK: ![[IVAR_RESUME]] = !DILocalVariable(name: "i"
; CHECK: ![[JVAR_RESUME]] = !DILocalVariable(name: "j"
; CHECK: ![[JDBGLOC_RESUME]] = !DILocation(line: 32, column: 7, scope: ![[RESUME_SCOPE]])
define void @f() {
define void @f() "coroutine.presplit"="0" {
entry:
%__promise = alloca i8, align 8
%i = alloca i32, align 4

2
test/Transforms/Coroutines/coro-split-01.ll
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@ -2,7 +2,7 @@
; RUN: opt < %s -S -enable-coroutines -O2 | FileCheck %s
; RUN: opt < %s -S -enable-coroutines -passes='default<O2>' | FileCheck %s
define i8* @f() {
define i8* @f() "coroutine.presplit"="0" {
entry:
%id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
%need.dyn.alloc = call i1 @llvm.coro.alloc(token %id)

2
test/Transforms/Coroutines/coro-split-recursive.ll
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@ -13,7 +13,7 @@ declare i8 @llvm.coro.suspend(token, i1)
; CHECK: call void @foo()
; CHECK-LABEL: define {{.*}}void @foo.destroy(
define void @foo() {
define void @foo() "coroutine.presplit"="0" {
entry:
%__promise = alloca i32, align 8
%0 = bitcast i32* %__promise to i8*

2
test/Transforms/Coroutines/ex0.ll
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@ -2,7 +2,7 @@
; RUN: opt < %s -enable-coroutines -O2 -preserve-alignment-assumptions-during-inlining=false -S | FileCheck %s
; RUN: opt < %s -enable-coroutines -aa-pipeline=basic-aa -passes='default<O2>' -preserve-alignment-assumptions-during-inlining=false -S | FileCheck %s
define i8* @f(i32 %n) {
define i8* @f(i32 %n) "coroutine.presplit"="0" {
entry:
%id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
%size = call i32 @llvm.coro.size.i32()

2
test/Transforms/Coroutines/ex1.ll
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@ -2,7 +2,7 @@
; RUN: opt < %s -O2 -enable-coroutines -preserve-alignment-assumptions-during-inlining=false -S | FileCheck %s
; RUN: opt < %s -aa-pipeline=basic-aa -passes='default<O2>' -enable-coroutines -preserve-alignment-assumptions-during-inlining=false -S | FileCheck %s
define i8* @f(i32 %n) {
define i8* @f(i32 %n) "coroutine.presplit"="0" {
entry:
%id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
%size = call i32 @llvm.coro.size.i32()

2
test/Transforms/Coroutines/ex2.ll
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@ -2,7 +2,7 @@
; RUN: opt < %s -O2 -enable-coroutines -S | FileCheck %s
; RUN: opt < %s -passes='default<O2>' -enable-coroutines -S | FileCheck %s
define i8* @f(i32 %n) {
define i8* @f(i32 %n) "coroutine.presplit"="0" {
entry:
%id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
%need.dyn.alloc = call i1 @llvm.coro.alloc(token %id)

2
test/Transforms/Coroutines/ex3.ll
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@ -2,7 +2,7 @@
; RUN: opt < %s -O2 -enable-coroutines -S | FileCheck %s
; RUN: opt < %s -aa-pipeline=basic-aa -passes='default<O2>' -enable-coroutines -S | FileCheck %s
define i8* @f(i32 %n) {
define i8* @f(i32 %n) "coroutine.presplit"="0" {
entry:
%id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
%size = call i32 @llvm.coro.size.i32()

2
test/Transforms/Coroutines/ex4.ll
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@ -2,7 +2,7 @@
; RUN: opt < %s -O2 -enable-coroutines -S | FileCheck %s
; RUN: opt < %s -passes='default<O2>' -enable-coroutines -S | FileCheck %s
define i8* @f(i32 %n) {
define i8* @f(i32 %n) "coroutine.presplit"="0" {
entry:
%promise = alloca i32
%pv = bitcast i32* %promise to i8*

2
test/Transforms/Coroutines/ex5.ll
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@ -2,7 +2,7 @@
; RUN: opt < %s -O2 -enable-coroutines -preserve-alignment-assumptions-during-inlining=false -S | FileCheck %s
; RUN: opt < %s -aa-pipeline=basic-aa -passes='default<O2>' -enable-coroutines -preserve-alignment-assumptions-during-inlining=false -S | FileCheck %s
define i8* @f(i32 %n) {
define i8* @f(i32 %n) "coroutine.presplit"="0" {
entry:
%id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
%size = call i32 @llvm.coro.size.i32()

2
test/Transforms/Coroutines/phi-coro-end.ll
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@ -2,7 +2,7 @@
; RUN: opt < %s -O2 -enable-coroutines -S | FileCheck %s
; RUN: opt < %s -aa-pipeline=basic-aa -passes='default<O2>' -enable-coroutines -S | FileCheck %s
define i8* @f(i32 %n) {
define i8* @f(i32 %n) "coroutine.presplit"="0" {
entry:
%id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
%size = call i32 @llvm.coro.size.i32()

2
test/Transforms/Coroutines/restart-trigger.ll
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@ -12,7 +12,7 @@
; CHECK: CoroSplit: Processing coroutine 'f' state: 0
; CHECK-NEXT: CoroSplit: Processing coroutine 'f' state: 1
define void @f() {
define void @f() "coroutine.presplit"="0" {
%id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
%size = call i32 @llvm.coro.size.i32()
%alloc = call i8* @malloc(i32 %size)