File: dr094.c

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (29 lines) | stat: -rw-r--r-- 921 bytes parent folder | download | duplicates (15) 
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 -std=c89 -emit-llvm -o - %s | FileCheck %s
   RUN: %clang_cc1 -std=c99 -emit-llvm -o - %s | FileCheck %s
   RUN: %clang_cc1 -std=c11 -emit-llvm -o - %s | FileCheck %s
   RUN: %clang_cc1 -std=c17 -emit-llvm -o - %s | FileCheck %s
   RUN: %clang_cc1 -std=c2x -emit-llvm -o - %s | FileCheck %s
 */

/* WG14 DR094: yes
 * Are constraints on function return the same as assignment?
 */

float func(void) { return 1.0f; }
void other_func(void) {
  int i;
  float f;

  /* Test that there's been a conversion from float to int. */
  i = func();
  // CHECK: %call = call float @func()
  // CHECK-NEXT: %conv = fptosi float %call to i32
  // CHECK-NEXT: store i32 %conv, ptr %i, align 4

  /* Test that the conversion looks the same as an assignment. */
  i = f;
  // CHECK: %0 = load float, ptr %f, align 4
  // CHECK-NEXT: %conv1 = fptosi float %0 to i32
  // CHECK-NEXT: store i32 %conv1, ptr %i, align 4
}