Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/20040219-1.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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68:561a7518be6b | 111:04ced10e8804 |
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1 /* Testing save/restore of floating point caller-save registers, on ia64 | |
2 this resulted in bad code. Not all targets will use caller-save regs. */ | |
3 | |
4 /* { dg-do run } */ | |
5 /* { dg-options "-O2" } */ | |
6 /* { dg-options "-O2 -minline-float-divide-max-throughput" { target ia64-*-* } } */ | |
7 | |
8 /* Testing save/restore of floating point caller-save registers on ia64. */ | |
9 | |
10 extern void abort (void); | |
11 | |
12 double foo(double a, double b, double c) | |
13 { | |
14 return (a+b+c); | |
15 } | |
16 | |
17 int | |
18 main () | |
19 { | |
20 double f1, f2, f3, f4, f5, f6, f7, f8, f9,f10; | |
21 double f11,f12,f13,f14,f15,f16,f17,f18,f19,f20; | |
22 double f21,f22,f23,f24,f25,f26,f27,f28,f29,f30; | |
23 double x; | |
24 int i,j,k; | |
25 | |
26 f1 = 0.1; f2 = 0.2; f3 = 0.3; f4 = 0.4; f5 = 0.5; | |
27 f6 = 0.6; f7 = 0.7; f8 = 0.8; f9 = 0.9; f10 = 1.0; | |
28 f11 = 1.1; f12 = 1.2; f13 = 1.3; f14 = 1.4; f15 = 1.5; | |
29 f16 = 1.6; f17 = 1.7; f18 = 1.8; f19 = 1.9; f20 = 2.0; | |
30 f21 = 2.1; f22 = 2.2; f23 = 2.3; f24 = 2.4; f25 = 2.5; | |
31 f26 = 2.6; f27 = 2.7; f28 = 2.8; f29 = 2.9; f30 = 3.0; | |
32 | |
33 i = (int) foo(1.0,1.0,1.0); | |
34 while (i > 0) { | |
35 f1 = f2 / f3 * f30; | |
36 f2 = f3 / f4 * f30; | |
37 f3 = f4 / f5 * f30; | |
38 f4 = f5 / f6 * f30; | |
39 f5 = f6 / f7 * f30; | |
40 f6 = f7 / f8 * f30; | |
41 f7 = f8 / f9 * f30; | |
42 f8 = f9 / f10 * f30; | |
43 f9 = f10 / f11 * f30; | |
44 f10 = f11 / f12 * f30; | |
45 f11 = f12 / f13 * f30; | |
46 f12 = f13 / f14 * f25; | |
47 f13 = f14 / f15 * f30; | |
48 f14 = f15 / f16 * f30; | |
49 f15 = f16 / f17 * f30; | |
50 f16 = f17 / f18 * f30; | |
51 f17 = f18 / f19 * f30; | |
52 f18 = f19 / f20 * f30; | |
53 f19 = f20 / f21 * f30; | |
54 f20 = f21 / f22 * f20; | |
55 f21 = f22 / f23 * f30; | |
56 f22 = f23 / f24 * f30; | |
57 f23 = f24 / f25 * f30; | |
58 f24 = f25 / f26 * f30; | |
59 f25 = f26 / f27 * f30; | |
60 f26 = f27 / f28 * f30; | |
61 f27 = f28 / f29 * f30; | |
62 f28 = f29 / f30 * f30; | |
63 f29 = f30 / f1 * f30; | |
64 f30 = f1 / f2 * f30; | |
65 x = foo(f1,f2,f3); | |
66 i = i - 1; | |
67 } | |
68 x = (f1+f2+f3+f4+f5+f6+f7+f8+f9+f10) * | |
69 (f11+f12+f13+f14+f15+f16+f17+f18+f19+f20) * | |
70 (f21+f22+f23+f24+f25+f26+f27+f28+f29+f30); | |
71 | |
72 /* Exact value is not needed, on IA64 it is massively off. */ | |
73 if (x < 19503.0 || x > 19504.0) abort(); | |
74 return 0; | |
75 } |