| ; RUN: llc -enable-machine-outliner -mtriple=x86_64-apple-darwin < %s | FileCheck %s |
| ; Ensure that the outliner doesn't outline from any functions that use a redzone. |
| |
| declare i8* @llvm.stacksave() #1 |
| declare void @llvm.stackrestore(i8*) #1 |
| |
| ; This function has a red zone. We shouldn't outline from it. |
| ; CHECK-LABEL: doggo |
| ; CHECK-NOT: OUTLINED |
| define void @doggo(i32) #0 { |
| %2 = alloca i32, align 4 |
| store i32 %0, i32* %2, align 4 |
| %3 = load i32, i32* %2, align 4 |
| %4 = add nsw i32 %3, 1 |
| store i32 %4, i32* %2, align 4 |
| ret void |
| } |
| |
| ; Ditto. |
| ; CHECK-LABEL: pupper |
| ; CHECK-NOT: OUTLINED |
| define void @pupper(i32) #0 { |
| %2 = alloca i32, align 4 |
| store i32 %0, i32* %2, align 4 |
| %3 = load i32, i32* %2, align 4 |
| %4 = add nsw i32 %3, 1 |
| store i32 %4, i32* %2, align 4 |
| ret void |
| } |
| |
| ; This doesn't have a redzone. Outlining is okay. |
| ; CHECK-LABEL: boofer |
| ; CHECK: OUTLINED |
| define void @boofer(i32) #0 { |
| %2 = alloca i32, align 4 |
| %3 = alloca i8*, align 8 |
| %4 = alloca i64, align 8 |
| store i32 %0, i32* %2, align 4 |
| %5 = load i32, i32* %2, align 4 |
| %6 = zext i32 %5 to i64 |
| %7 = call i8* @llvm.stacksave() |
| store i8* %7, i8** %3, align 8 |
| %8 = alloca i32, i64 %6, align 16 |
| store i64 %6, i64* %4, align 8 |
| %9 = load i8*, i8** %3, align 8 |
| call void @llvm.stackrestore(i8* %9) |
| ret void |
| } |
| |
| ; Ditto. |
| ; CHECK-LABEL: shibe |
| ; CHECK: OUTLINED |
| define void @shibe(i32) #0 { |
| %2 = alloca i32, align 4 |
| %3 = alloca i8*, align 8 |
| %4 = alloca i64, align 8 |
| store i32 %0, i32* %2, align 4 |
| %5 = load i32, i32* %2, align 4 |
| %6 = zext i32 %5 to i64 |
| %7 = call i8* @llvm.stacksave() |
| store i8* %7, i8** %3, align 8 |
| %8 = alloca i32, i64 %6, align 16 |
| store i64 %6, i64* %4, align 8 |
| %9 = load i8*, i8** %3, align 8 |
| call void @llvm.stackrestore(i8* %9) |
| ret void |
| } |
| |
| attributes #0 = { noinline nounwind optnone ssp uwtable "no-frame-pointer-elim"="true" } |
| attributes #1 = { nounwind } |