File: no-escaping-block-tail-calls.cpp

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (14 lines) | stat: -rw-r--r-- 620 bytes parent folder | download | duplicates (22) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
// RUN: %clang_cc1 -x c++-header -triple x86_64-apple-darwin11 -emit-pch -O2 -fblocks -fno-escaping-block-tail-calls -o %t %S/no-escaping-block-tail-calls.h
// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -include-pch %t -emit-llvm -O2 -fblocks -fno-escaping-block-tail-calls -o - %s | FileCheck %s

// Check that -fno-escaping-block-tail-calls doesn't disable tail-call
// optimization if the block is non-escaping.

// CHECK-LABEL: define internal noundef i32 @___ZN1S1mEv_block_invoke(
// CHECK: %[[CALL:.*]] = tail call noundef i32 @_ZN1S3fooER2S0(
// CHECK-NEXT: ret i32 %[[CALL]]

void test() {
  S s;
  s.m();
}