File: musttail.c

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (20 lines) | stat: -rw-r--r-- 1,184 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
// RUN: %clang_cc1 %s -triple powerpc64-ibm-aix-xcoff -o /dev/null -emit-llvm -verify=aix
// RUN: %clang_cc1 %s -triple powerpc-ibm-aix-xcoff -o /dev/null -emit-llvm -verify=aix
// RUN: %clang_cc1 %s -triple powerpc64-unknown-linux-gnu -o /dev/null -emit-llvm -verify=good
// RUN: %clang_cc1 %s -triple powerpc-unknown-linux-gnu -o /dev/null -emit-llvm -verify=good
// RUN: %clang_cc1 %s -triple powerpc64le-unknown-linux-gnu -o /dev/null -emit-llvm -verify=good
// RUN: %clang_cc1 %s -triple powerpc64le-unknown-linux-gnu -target-feature +pcrelative-memops -o /dev/null -emit-llvm -verify=good
// RUN: %clang_cc1 %s -triple powerpc64le-unknown-linux-gnu -target-feature +longcall -o /dev/null -emit-llvm -verify=longcall
// RUN: %clang_cc1 %s -triple powerpc64le-unknown-linux-gnu -target-feature +pcrelative-memops -target-feature +longcall -o /dev/null -emit-llvm -verify=good

int foo(int x) {
  return x;
}

int bar(int x)
{
  // good-no-diagnostics
  // longcall-error@+2 {{'musttail' attribute for this call is impossible because long calls cannot be tail called on PPC}}
  // aix-error@+1 {{'musttail' attribute is not supported on AIX}}
 [[clang::musttail]] return foo(1);
}