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author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2018-04-19 12:32:50 +0200 |
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committer | Stefan Liebler <stli@linux.vnet.ibm.com> | 2018-04-19 12:32:50 +0200 |
commit | da796524f8d64df3113e3c538adf285cf3ba041c (patch) | |
tree | cdd001a99d94653ed07ea79d5144ddd5a4e5f730 /math/libm-test-llround.inc | |
parent | f55a4fdefb00837f2e2a77c04792e69e888ead3e (diff) | |
download | glibc-da796524f8d64df3113e3c538adf285cf3ba041c.tar.gz glibc-da796524f8d64df3113e3c538adf285cf3ba041c.tar.xz glibc-da796524f8d64df3113e3c538adf285cf3ba041c.zip |
Use volatile global counters in test-tgmath.c.
If build with -Os on s390x, the test-tgmath fails with: float functions not called often enough (-10000) Within compile_testf(), the counter (count_float) is saved before the complex functions are called. Afterwards the saved counter differs to the current-counter. But the tests with the complex functions do not increment count_float! Instead count_float is saved to a register before calling totalorder and totalordermag which both increment count_float. The compiler is allowed to do that as totalorderf and totalordermagf is declared with __attribute__ ((__const__)) in math/bits/mathcalls.h. Thus this patch adjusts the global counters to be volatile. Then count_float is saved after totalordermag. ChangeLog: * math/test-tgmath.c (count_double, count_float, count_ldouble, count_cdouble, count_cfloat, count_cldouble): Use volatile int.
Diffstat (limited to 'math/libm-test-llround.inc')
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