test/stdlib/runtime_autorelease_optimization.txt

// REQUIRES: objc_interop
// RUN: otool -tvV %platform-module-dir/libswiftCore.dylib | %FileCheck %s --check-prefix=CHECK-%target-cpu

// Verify the autorelease return optimization sequence.

/// Test x86-64:

// CHECK-x86_64-LABEL: _swift_stdlib_NSStringHashValue:
// CHECK-x86_64-NOT: ret
// CHECK-x86_64: movq    {{.*}}(%rip), %rsi ## Objc selector ref: decomposedStringWithCanonicalMapping
// CHECK-x86_64: movq    {{.*}}(%rip), [[MSG:%.*]] ## Objc message: -[%rdi decomposedStringWithCanonicalMapping]
// CHECK-x86_64: callq   *[[MSG]]
// CHECK-x86_64: movq    %rax, %rdi
// CHECK-x86_64: callq   {{.*}} ## symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-x86_64: ret


// CHECK-x86_64-LABEL: _swift_stdlib_NSStringHashValuePointer:
// CHECK-x86_64-NOT: ret
// CHECK-x86_64: movq    {{.*}}(%rip), %rsi ## Objc selector ref: decomposedStringWithCanonicalMapping
// CHECK-x86_64: movq    {{.*}}(%rip), [[MSG:%.*]] ## Objc message: -[%rdi decomposedStringWithCanonicalMapping]
// CHECK-x86_64: callq   *[[MSG]]
// CHECK-x86_64: movq    %rax, %rdi
// CHECK-x86_64: callq   {{.*}} ## symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-x86_64: ret

/// Test i386:

// CHECK-i386-LABEL: _swift_stdlib_NSStringHashValue:
// CHECK-i386-NOT: ret
// CHECK-i386: calll   {{.*}} ## symbol stub for: _objc_msgSend
// CHECK-i386: movl    %ebp, %ebp
// CHECK-i386: calll   {{.*}} ## symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-i386: ret
// CHECK-i386-LABEL: _swift_stdlib_NSStringHashValuePointer:
// CHECK-i386-NOT: ret
// CHECK-i386: calll   {{.*}} ## symbol stub for: _objc_msgSend
// CHECK-i386: movl    %ebp, %ebp
// CHECK-i386: calll   {{.*}} ## symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-i386: ret

/// Test armv7:

// CHECK-armv7-LABEL: _swift_stdlib_NSStringHashValue:
// CHECK-armv7-NOT: pop {{.*}}pc{{.*}}
// CHECK-armv7: blx     {{.*}} @ symbol stub for: _objc_msgSend
// CHECK-armv7: mov     r7, r7
// CHECK-armv7: blx     {{.*}} @ symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-armv7: pop {{.*}}pc{{.*}}
// CHECK-armv7-LABEL: _swift_stdlib_NSStringHashValuePointer:
// CHECK-armv7-NOT: pop {{.*}}pc{{.*}}
// CHECK-armv7: blx     {{.*}} @ symbol stub for: _objc_msgSend
// CHECK-armv7: mov     r7, r7
// CHECK-armv7: blx     {{.*}} @ symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-armv7: pop {{.*}}pc{{.*}}

/// Test armv7s:

// CHECK-armv7s-LABEL: _swift_stdlib_NSStringHashValue:
// CHECK-armv7s-NOT: pop {{.*}}pc{{.*}}
// CHECK-armv7s: blx     {{.*}} @ symbol stub for: _objc_msgSend
// CHECK-armv7s: mov     r7, r7
// CHECK-armv7s: blx     {{.*}} @ symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-armv7s: pop {{.*}}pc{{.*}}
// CHECK-armv7s-LABEL: _swift_stdlib_NSStringHashValuePointer:
// CHECK-armv7s-NOT: pop {{.*}}pc{{.*}}
// CHECK-armv7s: blx     {{.*}} @ symbol stub for: _objc_msgSend
// CHECK-armv7s: mov     r7, r7
// CHECK-armv7s: blx     {{.*}} @ symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-armv7s: pop {{.*}}pc{{.*}}


/// Test armv7k:

// CHECK-armv7k-LABEL: _swift_stdlib_NSStringHashValue:
// CHECK-armv7k-NOT: pop {{.*}}pc{{.*}}
// CHECK-armv7k: blx     {{.*}} @ symbol stub for: _objc_msgSend
// CHECK-armv7k: mov     r7, r7
// CHECK-armv7k: blx     {{.*}} @ symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-armv7k: pop {{.*}}pc{{.*}}
// CHECK-armv7k-LABEL: _swift_stdlib_NSStringHashValuePointer:
// CHECK-armv7k-NOT: pop {{.*}}pc{{.*}}
// CHECK-armv7k: blx     {{.*}} @ symbol stub for: _objc_msgSend
// CHECK-armv7k: mov     r7, r7
// CHECK-armv7k: blx     {{.*}} @ symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-armv7k: pop {{.*}}pc{{.*}}

/// Test arm64:

// CHECK-arm64-LABEL: _swift_stdlib_NSStringHashValue:
// CHECK-arm64-NOT: ret
// CHECK-arm64: bl      {{.*}} ; Objc message: -[x0 decomposedStringWithCanonicalMapping]
// CHECK-arm64: mov      x29, x29
// CHECK-arm64: bl      {{.*}} ; symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-arm64: ret
// CHECK-arm64-LABEL: _swift_stdlib_NSStringHashValuePointer:
// CHECK-arm64-NOT: ret
// CHECK-arm64: bl      {{.*}} ; Objc message: -[x0 decomposedStringWithCanonicalMapping]
// CHECK-arm64: mov      x29, x29
// CHECK-arm64: bl      {{.*}} ; symbol stub for: _objc_retainAutoreleasedReturnValue
// CHECK-arm64: ret