aboutsummaryrefslogtreecommitdiff
path: root/math/test-tgmath.c
diff options
context:
space:
mode:
authorStefan Liebler <stli@linux.vnet.ibm.com>2018-04-19 12:32:50 +0200
committerStefan Liebler <stli@linux.vnet.ibm.com>2018-04-19 12:32:50 +0200
commitda796524f8d64df3113e3c538adf285cf3ba041c (patch)
treecdd001a99d94653ed07ea79d5144ddd5a4e5f730 /math/test-tgmath.c
parentf55a4fdefb00837f2e2a77c04792e69e888ead3e (diff)
downloadglibc-da796524f8d64df3113e3c538adf285cf3ba041c.tar
glibc-da796524f8d64df3113e3c538adf285cf3ba041c.tar.gz
glibc-da796524f8d64df3113e3c538adf285cf3ba041c.tar.bz2
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/test-tgmath.c')
-rw-r--r--math/test-tgmath.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/math/test-tgmath.c b/math/test-tgmath.c
index 6d8e7fde4e..2b0787cd4a 100644
--- a/math/test-tgmath.c
+++ b/math/test-tgmath.c
@@ -45,12 +45,12 @@ complex float fz;
complex double dz;
complex long double lz;
-int count_double;
-int count_float;
-int count_ldouble;
-int count_cdouble;
-int count_cfloat;
-int count_cldouble;
+volatile int count_double;
+volatile int count_float;
+volatile int count_ldouble;
+volatile int count_cdouble;
+volatile int count_cfloat;
+volatile int count_cldouble;
#define NCALLS 134
#define NCALLS_INT 4