Mercurial > hg > solaris-cc-bug
comparison t2.c @ 0:e0a26cc60a20 default tip
Test for solaris cc bug with bit-fields.
With "cc -fast" (or, rather, "cc -xalias_level=basic -xO3", implied by
"cc -fast") solaris cc compiles incorrect code for bit-field accesses,
notably not rechecking data after functions calls in some situations.
Using "-xalias_level=any" resolves the problem (as well as using any
non-bit-field type).
Tested cc version is "Sun C 5.9 SunOS_i386 2007/05/03" (Sun Studio 12).
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Tue, 16 Aug 2011 22:09:57 +0400 |
| parents | |
| children |
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| -1:000000000000 | 0:e0a26cc60a20 |
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| 1 | |
| 2 #include "t.h" | |
| 3 | |
| 4 | |
| 5 void (*x)(test *t); | |
| 6 | |
| 7 | |
| 8 void | |
| 9 dosomething(test *t) | |
| 10 { | |
| 11 t->bit = 1; | |
| 12 } | |
| 13 | |
| 14 void | |
| 15 doinstall() | |
| 16 { | |
| 17 x = dosomething; | |
| 18 } | |
| 19 | |
| 20 int | |
| 21 dotest(test *t) | |
| 22 { | |
| 23 t->bit = 0; | |
| 24 | |
| 25 x(t); | |
| 26 | |
| 27 if (t->bit) { | |
| 28 return 0; | |
| 29 } | |
| 30 | |
| 31 return 1; | |
| 32 } |