File: eval-method-with-unsafe-math.c

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (56 lines) | stat: -rw-r--r-- 2,324 bytes parent folder | download | duplicates (5)
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
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
// RUN: not %clang_cc1 -fexperimental-strict-floating-point \
// RUN: -triple x86_64-linux-gnu  \
// RUN: -verify %s 2>&1 | FileCheck %s --check-prefixes=CHECK-PRGM

// RUN: not %clang_cc1 -fexperimental-strict-floating-point \
// RUN: -triple x86_64-linux-gnu  -freciprocal-math \
// RUN: -verify %s 2>&1 | FileCheck %s --check-prefixes=CHECK-RECPR,CHECK-PRGM

// RUN: not %clang_cc1 -fexperimental-strict-floating-point \
// RUN: -triple x86_64-linux-gnu  -mreassociate \
// RUN: -verify %s 2>&1 | FileCheck %s --check-prefixes=CHECK-ASSOC,CHECK-PRGM

// RUN: not %clang_cc1 -fexperimental-strict-floating-point \
// RUN: -triple x86_64-linux-gnu  -fapprox-func \
// RUN: -verify %s 2>&1 | FileCheck %s --check-prefixes=CHECK-FUNC,CHECK-PRGM

// RUN: not %clang_cc1 -fexperimental-strict-floating-point \
// RUN: -triple x86_64-linux-gnu -freciprocal-math -mreassociate -verify \
// RUN: %s 2>&1 | FileCheck %s --check-prefixes=CHECK-ASSOC,CHECK-RECPR,CHECK-PRGM

// RUN: not %clang_cc1 -fexperimental-strict-floating-point \
// RUN: -triple x86_64-linux-gnu -freciprocal-math -mreassociate -fapprox-func \
// RUN: -verify %s 2>&1 \
// RUN: | FileCheck %s --check-prefixes=CHECK-FUNC,CHECK-ASSOC,CHECK-RECPR,CHECK-PRGM

// RUN: not %clang_cc1 -fexperimental-strict-floating-point \
// RUN: -triple x86_64-linux-gnu -ffp-eval-method=source \
// RUN: -verify %s 2>&1 | FileCheck %s --check-prefixes=CHECK-FFP-OPT,CHECK-PRGM

// expected-no-diagnostics

float f1(float a, float b, float c) {
  a = b + c;
  return a * b + c;
}

float f2(float a, float b, float c) {
  // CHECK-FFP-OPT: option 'ffp-eval-method' cannot be used with '#pragma clang fp reassociate'
#pragma clang fp reassociate(on)
  return (a + b) + c;
}

float f3(float a, float b, float c) {
#pragma clang fp reassociate(off)
  return (a - b) - c;
}

float f4(float a, float b, float c) {
#pragma clang fp eval_method(double)
  // CHECK-FUNC: '#pragma clang fp eval_method' cannot be used with option 'fapprox-func'
  // CHECK-ASSOC: '#pragma clang fp eval_method' cannot be used with option 'mreassociate'
  // CHECK-RECPR: '#pragma clang fp eval_method' cannot be used with option 'freciprocal'
  // CHECK-PRGM: '#pragma clang fp eval_method' cannot be used with '#pragma clang fp reassociate'
#pragma clang fp reassociate(on)
  return (a * c) - (b * c);
}