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comparison gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-8.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 /* { dg-do compile } */
2 /* { dg-options "-O -fno-tree-sra -fdump-tree-fre1-details" } */
3 #if (__SIZEOF_INT__ == __SIZEOF_FLOAT__)
4 typedef int intflt;
5 #elif (__SIZEOF_LONG__ == __SIZEOF_FLOAT__)
6 typedef long intflt;
7 #else
8 #error Add target support here for type that will union float size
9 #endif
10 union U {
11 intflt i;
12 float f;
13 };
14 intflt foo(int i, int b)
15 {
16 union U u;
17 if (b)
18 {
19 i = i << 2;
20 u.i = i;
21 return u.f;
22 }
23 else
24 {
25 i = i << 2;
26 u.i = i;
27 return u.f;
28 }
29 }
30
31 /* { dg-final { scan-tree-dump-times "Replaced u.f with" 2 "fre1" } } */
32 /* { dg-final { scan-tree-dump-times "Inserted" 2 "fre1" } } */