File: static-init-pnacl.cpp

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (14 lines) | stat: -rw-r--r-- 514 bytes parent folder | download | duplicates (15)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
// RUN: %clang_cc1 -emit-llvm -triple=le32-unknown-nacl -o - %s | FileCheck %s

int f();

// Test that PNaCl uses the Itanium/x86 ABI in which the static
// variable's guard variable is tested via "load i8 and compare with
// zero" rather than the ARM ABI which uses "load i32 and test the
// bottom bit".
void g() {
  static int a = f();
}
// CHECK: [[LOAD:%.*]] = load atomic i8, i8* bitcast (i64* @_ZGVZ1gvE1a to i8*) acquire
// CHECK-NEXT: [[GUARD:%.*]] = icmp eq i8 [[LOAD]], 0
// CHECK-NEXT: br i1 [[GUARD]]