File: operator-new.cpp

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (29 lines) | stat: -rw-r--r-- 1,079 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
// RUN: %clang_cc1 -no-opaque-pointers -triple i686-pc-linux-gnu -emit-llvm -o %t-1.ll %s
// RUN: FileCheck --check-prefix=ALL -check-prefix SANE --input-file=%t-1.ll %s
// RUN: %clang_cc1 -no-opaque-pointers -triple i686-pc-linux-gnu -emit-llvm -fno-assume-sane-operator-new -o %t-2.ll %s
// RUN: FileCheck --check-prefix=ALL -check-prefix SANENOT --input-file=%t-2.ll %s

class teste {
  int A;
public:
  teste() : A(2) {}
};

void f1() {
  // ALL: declare noundef nonnull i8* @_Znwj(
  new teste();
}

// rdar://5739832 - operator new should check for overflow in multiply.
void *f2(long N) {
  return new int[N];

  // ALL:      [[UWO:%.*]] = call {{.*}} @llvm.umul.with.overflow
  // ALL-NEXT: [[OVER:%.*]] = extractvalue {{.*}} [[UWO]], 1
  // ALL-NEXT: [[SUM:%.*]] = extractvalue {{.*}} [[UWO]], 0
  // ALL-NEXT: [[RESULT:%.*]] = select i1 [[OVER]], i32 -1, i32 [[SUM]]
  // SANE-NEXT: call noalias noundef nonnull i8* @_Znaj(i32 noundef [[RESULT]])
  // SANENOT-NEXT: call noundef nonnull i8* @_Znaj(i32 noundef [[RESULT]])
}

// ALL: declare noundef nonnull i8* @_Znaj(